- test-drb@ccmp.vtda.org - classiccmp.org

George Morrow died Wed May 7th 2003

by dgari＠msn.com

I had the pleasure of working at Morrow Designs in 1980 as a board repair tech (I was 20). I poured over George's schematics and wondered at his elegance of design. When he came to the shop floor he was always hyperactive, funny and informative, a genuine treat to be around. He will be missed. -David Gari

23 years, 1 month

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ADM 5 terminal

by pete＠dunnington.u-net.com

I have an ADM 5 terminal to get rid of. It's Lear Siegler's successor to the ADM 3a, and looks very much like an ADM 3A, but has lower case (with true descenders), cursor keys and function keys. It's very clean, works well, and comes with the manual. Collect only, though. If you're interested, make me an offer (small amount). -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

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OT: clearout including UPS

by pete＠dunnington.u-net.com

As part of my clearout, I'm trying to get rid of my "big" UPS. I mentioned this several months ago on the list, but here it is again: It's a Powerware Prestige 6000, with two battery boxes, software, manual, and various cables. Input is rated 200/208/220/230/240V AC at 19A (power factor 0.9) single phase, output is 200/208/220/230/240V AC at 19A (max 3000W). The battery boxes are each rated 120V DC 50A and 5AH capacity. Size is about 40cm deep x 25cm wide x 28 cm high for the control box and the battery boxes are half the height, so 40 x 25 x 14 each. They all stack nicely together (in any sensible order). I have used it, but the batteries (10 x 12V gel batteries in each box) do need replaced -- none will hold any significant charge/voltage. The batteries cost about ?7 each. You only need one box, though. If no-one wants this, it's going in the skip (or at least to recycling). No, I will not even consider shipping it; collect only. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

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Need Data Sheet: CRT5027 CRT controller

by dgari＠msn.com

Chip Directory ( http://www.xs4all.nl/~ganswijk/chipdir/ ) which is usually infallible came up with this: http://www.xs4all.nl/~ganswijk/chipdir/c/s.htm#smsc but a cursory search of the SMSC site didn't come up with anything. Try calling a human there. >Does anyone have a datasheet for the (very discontinued) CRT5027 controller >(SMSC) that they would be willing to scan/send to me?

23 years, 1 month

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Altair version differences

by RCini＠congressfinancial.com

Hi: Someone asked me what the difference between the 8800 and 8800a models. I know that some significant changes but I couldn't enumerate them. Can someone help here? Thanks. Rich ========================== Richard A. Cini, Jr. First Vice President Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile)

23 years, 1 month

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A very old hard drive for sale

by classiccmp＠vintage-computer.com

A gentleman contacted me about a large old hard drive he has for sale. I couldn?t use it as anything other then a paperweight, but maybe someone on-list has a use for it, even a decorative one? I?ve posted pictures at: http://www.vintage-computer.com/images/hokushin1.jpg http://www.vintage-computer.com/images/hokushin2.jpg http://www.vintage-computer.com/images/hokushin3.jpg Please contact the seller, Daniel, at natalierowe(a)earthlink.net Erik www.vintage-computer.com

23 years, 1 month

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Need Data Sheet: CRT5027 CRT controller

by allanh＠kallisti.com

Don Maslin <donm(a)cts.com> wrote: > The TMS9927 data sheet which I have sent to Joe and Patrick states > that the CRT5027 is an SMC second source of this chip. It came > from a google search for TMS9927 and is on www.spies.*mumble* In case that doesn't turn out to be close enough, I have an SMC databook including the CRT5027 datasheet that I could scan in. allan -- Allan N. Hessenflow allanh(a)kallisti.com

23 years, 1 month

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NASA Auction

by Robert_Feldman＠jdedwards.com

Goddard Space Flight Center, Greenbelt MD: http://sales.gsfc.nasa.gov/catalog.cgi?salenumber=80322620030009. Lots of PC's, Macs, monitors,printers, and office equipment. Fair amount of HP, Tektronic test equipment, various tape transports and hard drives. Some Sun, SGI, DEC, Next. Two Concurrent 3280mps. Unfortunately, divided into big lots.

23 years, 1 month

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Who wanted my RA81s?

by alanp＠snowmoose.com

Last fall someone offered to take some RA81s off of my hands. To avoid the hassle of trying to ship them, he was supposed to pick them up from my house in the spring, when he would be driving through Seattle. Well, it is spring and I haven't heard from you. If you are the person who wanted the RA81s, let me know if you still want them. Thanks. alan

23 years, 1 month

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hotrod Kaypro acquisition & problem

by frustum＠pacbell.net

This past weekend I went to the monthly swap meet in Livermore, CA. I had a late start, the weather wasn't promising, and I was tired, but I hadn't gone for a while so I went anyway. I'm glad I did. I picked up a Kaypro II for $20, although the seller asked for "Oh, $20, maybe $15" since he seemed like a nice guy. It didn't have any floppies or any manuals, but the rest is pretty nice. First, the case is in great shape. It was well taken care of. On power up, the character generation is pretty clean. More interestingly, it has had a lot of mods done to it. I haven't opened it up yet, but some of the changes are evident anyway. 1) addition of a fan. this is way too noisy and I must replace it. Also, it appears to be powered from the DC side of the power supply; I infer this from the fact that the fan keeps running for 5-10 seconds after power is removed! 2) one of the full height 5.25" floppies is replaced with a hard drive. I haven't confirmed the size, but the seller recalled that it was 10 MB. The hard drive has been partitioned into A, B, C, and D drives. The remaining floppy is E. 3) there is a RAM disk, which is F. I'm not sure of the size yet. 4) On the rear there is a toggle switch: 2.5 MHz/5.0 MHz. Cool. 5) On boot up, I get a notice saying that it has the Advent TurboROM 3.0 (1985) modification. That is all to the good. Now the bad news. The seller tried to "erase the hard drive", but said he didn't remember enough how to do it. Well, he managed to erase the A partition, although B, C, and D are still there. As you might expect, A contained the most interesting stuff. I can't do PIP, nor STAT, nor ED, nor DDT. The built-in DIR and TYPE work, of course, as I imagine the other built-ins would. On cold boot and warm boot, I have to hit carriage return a dozen times or so to get past the "Drive A: BDOS bad sector" (or somesuch) spew, but I do eventually get a prompt. So his attempt to erase the hard disk got rid of the directory apparently, but not the boot tracks. I am hopeful that the information is still there, and all I need to do is somehow boot off of the remaining floppy and use a sector editor to unerase the damage done to drive A. However, the fact that it is saying "bad sector" instead of just saying drive A has "no files" on a DIR would seem to indicate things aren't so simple. I may need to completely rebuild drive A. I've combed through the various CP/M archives and have found out a bit about the Advent TurboROM. I believe that if I have a bootable disk, I can put it into the "E" floppy drive and it will become the "A" drive on a reboot. So that leaves the question: how to get a kaypro II disk image? I have a PC (P-166) lying around that I added a 5.25" drive to for the purpose of reading some trs-80 disks. I'm not sure of the drive density at the moment; that was a while back. What density drive should I use in my PC? What software it recommended for making a bootable disk? Short of bothering the tireless Don Maslin, are there any disk images available online that could help me out? Should I scratch any plans to recover the CP/M 2.2 image on the A drive and instead just attempt to reformat and reinstall CP/M (Or ZCPR?) All suggestions are welcomed. Thanks.

23 years, 1 month

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Tektronix 8560 with PDP-11/23 CPU running TNIX (UINX)

by aek＠spies.com

>Has someone distribution media or stand alone tools? IIRC one of the units here has a hard drive attached to it. The hard drive unit is a separate piece that's about the same size as the 8560 and had a model number 8650 or something like that. I think there may be some docs down here as well. My friend is a real Tektronix nut and he has a huge collection of Tektronix equipment and docs. They looked interesting but too specialized to do anything with. Joe ======= Could you ask if he has the maint manual for the 8650 or 4051? I've not been able to turn these up anywhere.

23 years, 1 month

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PerSci drive manual wanted

by pete＠dunnington.u-net.com

Hi, Al. On May 8, 16:46, Al Kossow wrote: > Would it be possible to get one of these sets on > loan to add to the archive at www.spies.com/aek/pdf ? In principle, yes, of course. I'm in the UK, so postage might be an issue, but they're not very heavy so I'll check that out at the weekend. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

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PerSci drive manual wanted

by aek＠spies.com

Would it be possible to get one of these sets on loan to add to the archive at www.spies.com/aek/pdf ?

23 years, 1 month

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PerSci drive manual wanted

by pete＠dunnington.u-net.com

My newly-acquired Cromemco System 3 came with lots of disks, spare boards, manuals, licences, and a terminal, but only one dual PerSci S299 floppy drive, which needs some attention (it seeks but returns read errors). Anyone got a manual I can download, borrow or trade? I have two sets of manuals (2 of each of the "Product Specification" and "Logic and Schematic Diagram") for the 270/272/277 drives, several spare ADM-5 manuals, and some spare Cromemco FDC manuals. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

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Working 8" Floppy drives???

by nick＠4realworld.com

CCTech folks, Does anyone know the whereabouts of any working 8" floppy drives? I have a client who needs a few to allow a legacy system to keep on working while I revamp their whole system. Regards, Nick Garnett

23 years, 1 month

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Need Data Sheet: CRT5027 CRT controller

by patrick＠evocative.com

Does anyone have a datasheet for the (very discontinued) CRT5027 controller (SMSC) that they would be willing to scan/send to me? Many thanks! Patrick

23 years, 1 month

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Altair version differences

by classiccmp＠vintage-computer.com

> One difference was the use of flat vs round toggle switch handles. The > round handles cut into your fingers and made them SORE after toggling in > long programs. My first Altair was a 8800 but had the flat handles as used > on the A model. Steve Gabley (sp?) was tracking Altair serial numbers and > differences. He said that my Altair was the highest known SN for an 8800 > and one of very few 8800s with the flat handles. You should check with him, > I'm sure that he could tell you a lot more about the differences. At least some 8800a systems had the round switches. . . like mine. Erik S. Klein The Vintage Computer Forum www.vintage-computer.com/vcforum

23 years, 1 month

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Working 8" Floppy drives???

by pete＠dunnington.u-net.com

On May 8, 11:09, Ethan Dicks wrote: > --- "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > > On Wed, 7 May 2003, Nick Garnett wrote: > > > Does anyone know the whereabouts of any working 8" floppy > > > drives? > > Have you considered substituting 1.2M 5.25" drives? > > Once you make the appropriate cables and jumpering, they will usually > > work as a drop-in replacement, with NO software changes. > > Serious question (not meant to merely contradict Fred), what would it > take to do that for an RX01 or RX02? The drive mechanism itself in > a DEC 8" drive has no electronics - it's a motor, a head loading relay > (the drive motors spin whenever the unit is powered on, unlike modern > equipment), a couple of sensors and a head cable. All of the "work" is > done on the board above the drives. There might be issues around matching the head's impedances etc to the preamps and drivers on the RX01/2 electronics, and possibly even around the step angle of the positioner, but nothing inssurmountable, I suspect. > Even getting past electrical issues, one trick would be how to low-level > format the disks. Not too hard. An RX01 floppy is a standard format; you could do it on any CP/M machine that exepcted 8" drives but actually had a suitable 5.25" drive, or on a PC with a suitable FDC and suitable version of DOS (or Linux, probably), or indeed on many other systems. Once formatted to single density (RX01) most DEC system can then "reformat" the disk as RX02 (modified double density). > Among other reasons for doing it is that I have an RX01 that came from > a client with a siezed rotation motor on one drive and a siezed head > positioner motor (with attendant incinerated head motor driver > transistors) on the other drive. Yes, I can repair the transistors and > move one good motor to the other mechanism, but it means that I have 1/2 > of a full RX01. I had a drive motor seize on my RX02. It wasn't all that hard to free the spindle, clean the bearings, and re-lubricate them. It's running fine now. It's certainly worth a try. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

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Altair version differences

by classiccmp＠vintage-computer.com

The only significant differences, aside from the logo, were a somewhat beefier power supply in the 8800a and a standard 18 slot motherboard. The 8800 had 4 slot motherboards that were chained together. The 8800a had the 18 slot board with options for how many connectors and card guides you could buy. Earlier 8800a models had the short round switches shared with the 8800, later versions seem to have had the flat 8800b switches. Typically the 8800a had later rev boards, but some 8800s did too. Erik www.vintage-computer.com > Hi: > > Someone asked me what the difference between the 8800 and 8800a > models. I know that some significant changes but I couldn't enumerate them. > > Can someone help here? Thanks. > > Rich > > ========================== > Richard A. Cini, Jr. > First Vice President > Congress Financial Corporation > 1133 Avenue of the Americas > 30th Floor > New York, NY 10036 > (212) 545-4402 > (212) 840-6259 (facsimile) > > --

23 years, 1 month

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Tektronix 8560 with PDP-11/23 CPU running TNIX (UINX)

by jkunz＠unixag-kl.fh-kl.de

Hi. I got a "Tektronix 8560 Multi-User Software Development Unit" together with a Tektronix 8540 in system 68k CPU emulator. The 8560 is based on the DEC M8186 PDP-11/23 CPU module but that card is the one and only DEC part in the machine. Everything else is from Tektronix. There is a 35 MB 8" disk and a 8" floppy in the 8560 and it runs some flavor of UNIX called TNIX. I am trying to break into it currently, as I have no passwords. I can't get it to single user mode and I have no distribution media nor no stand alone tools. Has someone heared from this machine bevore? Has someone distribution media or stand alone tools? -- tsch??, Jochen Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/

23 years, 1 month

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Tektronix 8560 with PDP-11/23 CPU running TNIX (UINX)

by aek＠spies.com

> Has someone heared from this machine bevore? yes, I have several 8" disks that were created by the fbu program on that system that I need to recover and asked around a few months ago with no replies.

23 years, 1 month

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Working 8" Floppy drives???

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >On Wed, 7 May 2003, Nick Garnett wrote: >> Does anyone know the whereabouts of any working 8" floppy >> drives? I have a client who needs a few to allow a legacy >> system to keep on working while I revamp their whole >> system. > >Have you considered substituting 1.2M 5.25" drives? >Once you make the appropriate cables and jumpering, they will usually work >as a drop-in replacement, with NO software changes. > Hi I suspect that you'll need to transfer the files and such to the 5.25" disk. I've tried folding a 8 inch disk into a 5.25" drive with little success. Dwight

23 years, 1 month

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Working 8" Floppy drives???

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >On Wed, 7 May 2003, Nick Garnett wrote: >> Does anyone know the whereabouts of any working 8" floppy >> drives? I have a client who needs a few to allow a legacy >> system to keep on working while I revamp their whole >> system. > >Have you considered substituting 1.2M 5.25" drives? >Once you make the appropriate cables and jumpering, they will usually work >as a drop-in replacement, with NO software changes. > Hi One other thing that Fred didn't mention is that some of the older systems use the data separator on the 8 inch drives and not the raw data. I don't recall any 1.2M drives with data separators. Dwight

23 years, 1 month

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Qualstar 1260

by allanh＠kallisti.com

Joe <rigdonj(a)cfl.rr.com> wrote: > I just picked up a Qualstar 1260. Can anyone tell me anything about it? > What kind of interface/controller does it need? It has an interface cable > with a male D-subminiture connector with 62 pins in three rows. I have a 1260 also; it is a 1600/6250bpi drive. They're not exactly fast, but are nice and compact. It has a Pertec formatted interface. The cable on it was probably for an Overland Data controller; if you remove the cover plate the cable goes through you'll see that it terminates at two 50 (I think) pin connectors in the drive. Those use the standard Pertec pinout. allan -- Allan N. Hessenflow allanh(a)kallisti.com

23 years, 1 month

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Sphere 6800

by aek＠spies.com

> Does anyone have any service manuals or technical documentation on it? Eric and I retreived a rather complete collection of documentation and software from person who ran the Sphere User's group about a month ago. It was promised to the Computer Museum, but it is in the queue to be scanned and the cassettes duplicated.

23 years, 1 month

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TRS-80 / System 80

by aeg＠paradise.net.nz

Hi All I have just acquired a System 80 MkII (distributed in Australasia by Dick Smith Electronics). On power up I get the LED power light ok but a screen full of random characters, the reset switch does nothing. I've had it apart and there are no loose connections or chips on the two main boards and no sign of any burnt or expired components. Has anyone had similar problems and / or knows what the problem is? Thanks Alan

23 years, 1 month

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Digital Group equipment?

by jontitus＠attbi.com

Does anyone follow or collect Digital Group equipment? This company, based in Colorado, had some nice equipment that let users plug in various CPU boards, yet the same basic memory, I/O, and peripheral controllers worked for all the CPUs. Data storage used Phi Deck cassette recorders, although in its later stages, someone may have offered a disk-drive controller. The Digital Group computers were quite popular with amateur-radio operators. Jon Jon Titus 36 Sunset Drive Milford, MA 01757-1362 USA Phone: +1-508-478-8040 E-mail: jontitus(a)attbi.com Member, National Association of Science Writers

23 years, 1 month

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Northstar File Transfer from PC

by dwightk.elvey＠amd.com

>From: "Cini, Richard" <RCini(a)congressfinancial.com> > >Dwight: > > I have a working N* Horizon system (dual drive, 56k RAM, monitor in >ROM) and would be happy to lend my testing services. > > From time to time, I've wrestled with the same disk image >manipulation issues for the Altair32 emulator, i.e., manipulating the disk >image outside of the emulation environment itself. My conclusion was that >there's no substitute for using the original OS for maniuplating the images. >So, we developed several methods to move program files into and out of the >emulator by using some home-grown and CP/M-native utilities and the file >transfer functions of the terminal program on the PC. > > I really want to do an external "image management" program but >haven't found a clean/easy way without essentially re-implementing portions >of the base OS. Hi Rich I've found that it is usually not all that difficult to do. I've written code to handle DOS files on a non-PC machine. I have a friend in Germany that has written code to manipulate files from a Olivetti M20 ( Z8000 machine ) image file on a PC. This is using PCOS ( Olivetti's OS ). I wrote code to build disk images for the CPM8000 that I got up and running on the M20 as well. I've always felt that such activities, although time consuming, pay off later in the ability to handle new problems. Dwight > >Rich > >-----Original Message----- >From: Dwight K. Elvey [mailto:dwightk.elvey@amd.com] >Sent: Monday, May 05, 2003 5:23 PM >To: cctalk(a)classiccmp.org >Subject: Re: Northstar File Transfer from PC > > >Hi Marvin > Maybe this isn't exactly what you are looking for >but I'm currently working on some software to transfer >entire disk images through the serial port of a H89 >to a PC. I have another friend checking out my first >version, now. I hope to do a similar things for the >N*'s as soon as I get one of these machines up and >running ( on my list of things to do ). > I suppose that once the image is on the PC, one can >modify the image to include any new files, one wants >and then transfer it back to the N*. It isn't a nice >direct method but my main intent is to get some way >to send disk images over the net and not specifically >individual files. > I haven't fiddled with the N* at all and don't >know a lot about it. The H89 has a simple monitor that >I use to hand enter a simple bootstrap program. With >this, I bring in the rest of the code to run the disk >drive. Does the N* have a ROM based monitor? > I also have a similar setup for my Poly88 but that is >setup for getting code into the Poly88 and tape from the PC. >I used this to create code to do the various tape >copying functions. I can read code from a cassette >tape, transfer it through the serial to the PC and >later feed it back through the serial to the Poly88 >to write back onto tape. I use a similar bootstrapping >code to get things started, through the Poly's monitor. >Dwight > > >>From: "Marvin Johnston" <marvin(a)rain.org> >> >>What is the procedure for transfering files to and from a PC using N* >>DOS? For text from the N* to the PC, no problem, just print it out to >>the terminal (a DOS machine) and capture it. But what about going the >>other way, wanting to get information back to the N*? Any information >>appreciated! >> >>------------------------------------------- >>ebaY's Security Breach and Coverup >>http://www.auctionguild.com/generic110.html

23 years, 1 month

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Sphere 6800

by vcf＠siconic.com

I got my hands on a Sphere 6800 and would like to get it working again. Does anyone have any service manuals or technical documentation on it? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 1 month

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Trenton Computer Festival

by cb＠mythtech.net

>10/100 NuBus? Never seen one I'm pretty sure Farallon made one. I've seen people requesting them on the LEM Swap list, but I don't know what kind of a price they get. I would imagine at least $20 or so, if for no other reason than they aren't all that common (unlike 10Mb Nubus cards which can be had for just a few $ each... I think I paid $10 for a box of 12 assorted on ebay about a year ago) >> Apple IIgs scsi cards available there for non ebay prices? > >Sometimes. Kinda rare, though. Best bet is a IIgs that has one >inside that nobody knows what it is. I'm still waiting for one of those as well. <sigh> eventually I'll find one. -chris <http://www.mythtech.net>

23 years, 1 month

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Sun Items available at Auction

by jrkeys＠concentric.net

I will be going to an auction on Wednesday that has 24 SPARCstation 2's; 2 SPARCstation 10's; 9 SPARCstation 20's and 6 IBM 7204-114's. Plus several Sun external drives of different types tape's, CD's, and HD's. If anyone wants any let me know before Wednesday (5/7/03) at 8AM? There are also some IBM external drives for sale.

23 years, 1 month

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Trenton Computer Festival

by cb＠mythtech.net

>The MIT flea is in less than 2 weeks, is close enough in Boston, >and is very Mac friendly BTW. I go for the DEC (still strong >there) and even odder stuff, like airplane gyros and optical >devices. Definitely something for everyone and less than 5% >non-tech nailclippers kind of sellers. >video, Hp, Tek, C64, Sun, parts, test equipment, radio, ?, >all good there. This I might go to. At least if I go to Boston, its only 4 hours each way, and I have other excuses to go that direction (finally stop by Dave W's in CT to swap some stuff with him, and I can visit my cousin who lives in Boston, or a suburb of it... humm... actually I'm not really sure WHERE she is these days... somewhere up that direction) -chris <http://www.mythtech.net>

23 years, 1 month

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Trenton Computer Festival

by cb＠mythtech.net

>>When and where is the Hamvention? > >Dayton, OH, Ugh, no, too far. Dayton is probably about a 12 hour drive for me (I'm in the north east corner of NJ). I like old computers... but I would have to be guarentteed something good and dirt cheap to be willing to drive 24 hours round trip (Humm... I'd do it for a Lisa, but I doubt there will be any there... much less for cheap) -chris <http://www.mythtech.net>

23 years, 1 month

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Trenton Computer Festival

by cb＠mythtech.net

>Best I've done so far was a ROM 03 IIgs with a 1MB RAM card (1/4 full, but >I have lots of 256Kx1 DRAMs) for about $10. No SCSI. :-( Someone just sold a working fully populated 8 MB ram card for the IIgs on the LEM Swap list... he asked $5... SHIPPED! Naturally I dove on the offer... but I was too late... by about 70 people >from what he told me :-) I actually directed him to this list, as he said he had a whole mess of older Apple 2 stuff that was pulled from schools, and he didn't really feel like going thru it so he was planning on dumpstering most of it. He didn't tell me where he was, but I told him he should post a note to this list as I'm sure someone would drive to him and take it all off his hands. -chris <http://www.mythtech.net>

23 years, 1 month

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Dayton Hamvention (was Trenton Computer Festival)

by david_comley＠yahoo.com

>>Mendelsson's will probably have their large tent with pallets of slightly-crushed UPSes, ammo cans and other surplussy things. Refresh my memory, does Mendelsson's have a warehouse-like store in downtown Dayton, crammed full of retired electronics (and office furniture) ? I worked in Dayton many years ago and I remember spending some interesting lunchtimes in this warehouse-like store looking for goodies. Of course the one thing no-one should miss when in Dayton is - Marions' Pizza. Ask for it by name. Dave. The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

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Trenton Computer Festival

by david_comley＠yahoo.com

>>You going to be at all of the Hamvention or just part of it? Probably just stay for Friday. I am going to drive over Thursday from PA. and be there promptly (I hope) for the beginning. I went once before 7 or 8 years ago but didn't really have time to take in all the flea market. Seems a shame to miss out on the Sunday dumpster dive and free 'stuff' but can't be helped. I have already cleared out the back of the station wagon in readiness for a large quantity of purchases. I think I need to get one of those wheeled trolley things you see people with at hamfests. I seem to remember having to park at Wright-Patterson last time and taking a bus in, so there'll be no running back to the car after every purchase. The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

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Trenton Computer Festival

by david_comley＠yahoo.com

>When and where is the Hamvention? Dayton, OH, and it's the weekend after next (Fri 16th May through Sunday). The focus is ham radio equipment but there was also a lot of computer gear and test equipment last time I was there. As a ham as well as a, er, whatever computer enthusiasts are called, it's worth the drive for me ! Chris, thanks for the offer of help on the 68k apple stuff. I didn't really have a specific model in mind. I was just thinking wistfully about all those macs stacked up at TCF and hoping they didn't get trashed. Dave. The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

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Trenton Computer Festival

by cb＠mythtech.net

>>>You going to be at all of the Hamvention or just >part of it? > >Probably just stay for Friday. I am going to drive >over Thursday from PA. When and where is the Hamvention? I'm assuming from the name it is mostly Ham Radio stuff (something I'm not into), but since you guys seem to feel there will be some classic computer stuff, I might take the drive depending on time/date/location. -chris <http://www.mythtech.net>

23 years, 1 month

2
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Qbus posted

by Innfogra＠aol.com

Ola; I posted some more Qbus cards on ebay. One is a rare Virtual Microsystems Z-Board with 4 virtual z80 systems. 4 Z80as & RAM on one card. Another is a console card from a 11/34a with the 8008 chip still on it. Also listed is a "Return to Zork" package. 11/03 CPUs also, which are closing shortly. <A HREF="http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&include=0&useri…">http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&include=0& userid=innfosale&sort=3&rows=25&since=-1&rd=1</A> Paxton Astoria, OR Innfosale on eBay

23 years, 1 month

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Trenton Computer Festival

by david_comley＠yahoo.com

I went on Saturday but skipped Sunday. Definitely worth the trip (120 miles R/T) although I didn't bring a whole lot home. I ended up with handful of TK50 tape cartridges (marked VMS5.4, but not sure if this is a complete set) and a scsi zip drive to replace the one I butchered 2 years ago. I passed on what appeared to be a 9-track tape drive and a Wang printer. One vendor was selling some VME components but other than that I wasn't tempted this time around. I wish I'd picked up one of the 68k Apples. I'm sure the Hamvention will have scads of them though. Regards, Dave The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

2
1
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Trenton Computer Festival

by cb＠mythtech.net

>I also went to TCF on Saturday. [snip] Yowzers! Sounds like there was FAR more to be had on Saturday than Sunday when I went. I don't think I saw ANY Apple 2 stuff at all other than one guy with a box of software and a Cricket speaker box. (of which I meant to buy the stuff, but got side tracked answering a Mac question for my brother and then further side tracked by things to look at... before I knew it, I had walked away, and gone home and forgotten to buy the A2 items). I also didn't really see too many items older than 68k Macs and a few early Pentiums. I guess all that stuff sold off on Saturday. Looks like next year I go on Saturday rather than Sunday. -chris <http://www.mythtech.net>

23 years, 1 month

3
2
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Trenton Computer Festival

by alhartman＠yahoo.com

Saturday was definitely the day to go. People offered me some stuff for free, because they were going to dumpster it. But I gave them a couple of dollars (usually the first price). Although last year, a guy sent me a TON of HP Laserjet IIp/IIIp parts for the cost of shipping. Which helped me fix a couple that I have here. I passed on a Power 100 (Power Computing PM8100 Clone) for $10.00. It was a logic board and I/O board in a case and PS with an FDD. No HDD or CD-ROM (though I have plenty of those..). But, I already have one. And didn't want to lug another home, just to have it sit in a corner. But, I was tempted.. LOL! I couldn't pass up the IIgs, and considering I have a unit that exactly duplicates it, perhaps I should have... But, it will make a nice gaming machine to give to someone and I have a few good games for it. And considering I still do the occasional maintenance on an educational program I wrote in the 80's, it's good to have a backup unit. Some people do leave stuff home, and remember to bring it back on Sunday though. So, early on Sunday you can find some things that weren't available on Saturday. And the last hour is the best time for dumpster diving! LOL! The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

1
0
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Northstar File Transfer from PC

by RCini＠congressfinancial.com

Dwight: I have a working N* Horizon system (dual drive, 56k RAM, monitor in ROM) and would be happy to lend my testing services. From time to time, I've wrestled with the same disk image manipulation issues for the Altair32 emulator, i.e., manipulating the disk image outside of the emulation environment itself. My conclusion was that there's no substitute for using the original OS for maniuplating the images. So, we developed several methods to move program files into and out of the emulator by using some home-grown and CP/M-native utilities and the file transfer functions of the terminal program on the PC. I really want to do an external "image management" program but haven't found a clean/easy way without essentially re-implementing portions of the base OS. Rich -----Original Message----- From: Dwight K. Elvey [mailto:dwightk.elvey@amd.com] Sent: Monday, May 05, 2003 5:23 PM To: cctalk(a)classiccmp.org Subject: Re: Northstar File Transfer from PC Hi Marvin Maybe this isn't exactly what you are looking for but I'm currently working on some software to transfer entire disk images through the serial port of a H89 to a PC. I have another friend checking out my first version, now. I hope to do a similar things for the N*'s as soon as I get one of these machines up and running ( on my list of things to do ). I suppose that once the image is on the PC, one can modify the image to include any new files, one wants and then transfer it back to the N*. It isn't a nice direct method but my main intent is to get some way to send disk images over the net and not specifically individual files. I haven't fiddled with the N* at all and don't know a lot about it. The H89 has a simple monitor that I use to hand enter a simple bootstrap program. With this, I bring in the rest of the code to run the disk drive. Does the N* have a ROM based monitor? I also have a similar setup for my Poly88 but that is setup for getting code into the Poly88 and tape from the PC. I used this to create code to do the various tape copying functions. I can read code from a cassette tape, transfer it through the serial to the PC and later feed it back through the serial to the Poly88 to write back onto tape. I use a similar bootstrapping code to get things started, through the Poly's monitor. Dwight >From: "Marvin Johnston" <marvin(a)rain.org> > >What is the procedure for transfering files to and from a PC using N* >DOS? For text from the N* to the PC, no problem, just print it out to >the terminal (a DOS machine) and capture it. But what about going the >other way, wanting to get information back to the N*? Any information >appreciated! > >------------------------------------------- >ebaY's Security Breach and Coverup >http://www.auctionguild.com/generic110.html

23 years, 1 month

1
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HP64000

by david_comley＠yahoo.com

Steve, I am certainly interested in the docs and in the drive. I would be able to drive up and pick them up >from you - I'm assuming the drive will fit in the back of a Volvo station wagon, does that sound feasible ? If you want to contact me off-list we can arrange something. Many thanks for the response. As far as the software goes, I'm definitely interested if there's a way to copy the diskettes. I'm assuming you don't want to part with the originals. I'll scout round for a utility of some sort. Regards, Dave david_comley(a)yahoo.com The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

1
0
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HP64000

by comley＠comcast.net

I brought home an HP64000 development system today. It has the emulation pods for the 68000 and 8080A processors, an HP-IB cable plus some other odds and ends in the backpack. A peak at the back indicated that it is crammed full of cards and 128K memory. Unfortunately what it doesn't have is either software or manuals, so this is a request to the group for help in that respect. I believe that there was a ton of software originally available for this unit to support various options and development tools, and I think what I am looking for is at least the operating system on floppy so that I can boot it up. Any background material on the 64000 would also be appreciated. I was impressed by the fact that it weighs almost as much as a model 33 Teletype yet it still has a handy reinforced carrying handle on the side for those portable sessions... Regards, Dave

23 years, 1 month

2
1
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Gnomes

by bob.c＠dial.pipex.com

Yes I remember Bob Clark (http://www.classiccmp.org/pipermail/cctalk/2003-January/014196.html) because I am he, and I remember Peter Turnbull too. This is getting silly, because this week I have relocated Bill Olivier (CommunITel) and Lindsay Reid (Viewfax 258), mostly by accident. Best regards, Bob

23 years, 1 month

2
2
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FS/FT: VaxStation 3100 m38; C-128; Atari 800

by dwoyciesjes＠comcast.net

Well, in the process of going through my computer room, and sorting stuff out to keep, and get rid of; I've decided to get rid of 3 of my classics. They've sat around for too long, going unused. So... --- VaxStation 3100 m38 - 32MB RAM (maximum!) - 600 MB HDD in matching Storage Expansion Unit - mono video output - VR262 monitor (Don't think it works, might be a minor repair) it does drive a Digital VRT-17 fine on the green channel fine, though. - Installing & Using the VR262 manual - cables & power cords - including a MMJ cable & MMJ-DB25 adapter - 2 keyboards (IIRC LK201) - I'll make sure they work first... - Owner's binder - Customer Hardware Info/Planning & Prep/Owner's Manual/Network Guide - NetBSD 1.5 is currently installed --- C-128 & Atari 800 - both have 5 1/4 floppy drives, power cables, joystick - Bunch of games and apps Best offer. Pick up in New Haven CT preferred (especially for the Vax). The C-128 and Atari should'nt be that bad to ship, though. Cash, money order, PayPal. For trade, I'm looking for SCSI & IDE HDDs over 4GB, true-parity memory, PC100/133 DIMMs, P-III 800 CPU, 19" monitor... -- ---Dave Woyciesjes ---ICQ# 905818

23 years, 1 month

4
8
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Atari 800 (paging David Woyciesjes <dwoyciesjes@comast.net>)

by cb＠mythtech.net

>I'm sorry for sending this to the list but I've tried several times to >use the email address above for private communications and my messages >have bounced. Does anyone know how to contact David Woyciesjes? I >thought he was located in the US but comast.net seems to be in the UK. >In any case, messages sent to the above address bounce (at least for >me). comast.net might be in the UK, but comCast.net is in the US (notice the C after the M). -chris <http://www.mythtech.net>

23 years, 1 month

2
1
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Looking for MSD service manual

by musicman＠satcom.whit.org

I am desperatly looking for a copy (electronic, scanned, hard, any!) of the MSD service manual (for the MSD Dual Drive sometimes called the SD2 or Super Drive 2) for the Commodore line of computers...I'd like to sell my MSD dual drive, and it is in great shape, but I have the owners manual and figure it would be nice to include a service manual as these are 20+ years old! Thanks -----Original Message----- From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On Behalf Of cctech-request(a)classiccmp.org Sent: Sunday, May 04, 2003 12:32 AM To: cctech(a)classiccmp.org Subject: cctech digest, Vol 1 #495 - 49 msgs Send cctech mailing list submissions to cctech(a)classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctech or, via email, send a message with subject or body 'help' to cctech-request(a)classiccmp.org You can reach the person managing the list at cctech-admin(a)classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctech digest..." Today's Topics: 1. HP's Amigo Protocol, HFS (Peter Brown) 2. RE: HP 9000 300 data acquisition card - Infotek AD200 (Peter Brown) 3. Another rubber capstan turns to mush (chuck(a)mail.schillernet.us) 4. DATA I/O SetSite module (Joe) 5. dnd (Ken Carlin) 6. Re: More DEC Stuff Coming (Jeffrey Sharp) 7. Fw: Germany: Free RS/6000 ! (Robert F. Schaefer) 8. Re: Heathkit EC-1 (blstuart(a)bellsouth.net) 9. Great Finds Todayin Houston (Keys) 10. Re: Pens for TRS-80 PC-2 plotter - found. (Ethan Dicks) 11. Re: More DEC Stuff Coming (TeoZ) 12. wanted: documentation for IBM 3164 terminal (Joseph Ballantyne) 13. RE: More DEC Stuff Coming (Witchy) 14. VAXStation 4000/90 Manuals (David de Gruyl) 15. Re: Inquiry about Classic Computers Collectors List (John Boffemmyer IV) 16. Re: VAXStation 4000/90 Manuals (Paul Williams) 17. Re: VAXStation 4000/90 Manuals (David de Gruyl) 18. More items from the 'Garage'... (James Willing) 19. RE: FS/FT Items (philip(a)awale.qc.ca) 20. FA: HP computer manuals; Pascal, Fortran, IPC (Joe) 21. RE: H89 disk formats? (Patrick Rigney) 22. Re: Heathkit EC-1 (Doug Coward) 23. Re: Heathkit EC-1 (Doug Coward) 24. Re: Heathkit EC-1 (Dwight K. Elvey) 25. Looking for a 11/44 in denver area / colorado (emanuel stiebler) 26. RE:256x4 80NS or faster (Geoff Reed) 27. RE:256x4 80NS or faster (Joe) 28. Re: HP Amigo command set and HFS disk format (Joe) 29. Re: Heathkit EC-1 (Doug Coward) 30. Re: Heathkit EC-1 (Ethan Dicks) 31. Neat find (in my own junk bin!) - NS 8073 (Ethan Dicks) 32. Re: Looking for a 11/44 in denver area / colorado (Tony Duell) 33. Northgate OmniKey Ultra (David Holland) 34. Re: Heathkit EC-1 (Dwight K. Elvey) 35. VCF Europa 4.0 (Vintage Computer Festival) 36. Re: Northgate OmniKey Ultra (Frank McConnell) 37. MicroVAX4000/5050A drive sleds (Greg Elkin) 38. TRS-80 / System 80 (Alan Greenstreet) 39. Re: MicroVAX4000/505A drive sleds (Robert F. Schaefer) 40. Gnomes (Bob Clark) 41. HP's Amigo Protocall & HP IPC (Joe) 42. Fw: Viewfax 258 (Bob Clark) 43. VCF Europa Live (Vintage Computer Festival) 44. Re: HP's Amigo Protocol, HFS (Joe) 45. Re: Northgate OmniKey Ultra (David Holland) 46. Soroc IQ120 Chip Problem (Marvin Johnston) 47. HP9915 (Tony Duell) 48. Re: Another rubber capstan turns to mush (R. D. Davis) 49. Re: HP Amigo command set and HFS disk format (Frank McConnell) --__--__-- Message: 1 From: "Peter Brown" <peterbrown10(a)hotmail.com> To: cctalk(a)classiccmp.org Subject: HP's Amigo Protocol, HFS Date: Sat, 03 May 2003 17:53:15 +0000 Reply-To: cctech(a)classiccmp.org Hi Joe, The drive is a 9134XV - serial number begins with 23 so I guess that it would be from around 1983. If I look at the drive with an HP 9000 332 it sees an HFS partition - with basic 6.0 binaries :). When I ask the drive to identify itself it returns a pair of bytes that I don't recognise (1 and 15 from memory but I could be wrong). This pair of bytes is not the same as the pair that would be returned by a CS80 drive. I managed to check the reader software with a pair of 9133 drives, a 9134 drive (which fails) and a 7907 drive (this identifies itself correctly but appears to have been wiped of data at some time). I have some other software recorded on 7906 removable cartridges - does anyone know if an HPIB version of this drive was made? - I think that the model number may be 7906H but I have no further information. Does anyone have a 7906H tht they don't need? Cheers Peter Brown _________________________________________________________________ On the move? Get Hotmail on your mobile phone http://www.msn.co.uk/mobile --__--__-- Message: 2 From: "Peter Brown" <peterbrown10(a)hotmail.com> To: cctalk(a)classiccmp.org Subject: RE: HP 9000 300 data acquisition card - Infotek AD200 Date: Sat, 03 May 2003 21:47:05 +0000 Reply-To: cctech(a)classiccmp.org Hi All, I've just acquired an HP 9000 series R332. In the back of it amongst the usual HPIB / GPIB cards there is a card marked Infotek Systems AD200 Converter, \ Assy 900-13992 rev E - I assume that this is some sort of data acquisition card. Does anyone have details of the card specification / the software required to drive it? Cheers Peter Brown _________________________________________________________________ It's fast, it's easy and it's free. Get MSN Messenger today! http://www.msn.co.uk/messenger --__--__-- Message: 3 Date: Sat, 3 May 2003 20:58:49 -0400 (EDT) Subject: Another rubber capstan turns to mush From: <chuck(a)mail.schillernet.us> To: <cctalk(a)classiccmp.org> Reply-To: cctech(a)classiccmp.org Hello All - bah, was just playing with my QIC drive, a WangTek 5150ES (Using dos tar!) and halfway thru the first listing tape stops. Turns out the rubber what drives the tape has gotten very soft. Anybody have a box full of cheap replacements? (pic here: http://mail.schillernet.us/wangtek/ ). I'd like to keep it working, but paying for depot service ( like http://www.eds-sales.com/EDS-QICPG.htm ) on a 150Mb drive is, uh, a questionable investment. --Chuck --__--__-- Message: 4 Date: Thu, 01 May 2003 13:45:52 To: cctalk(a)classiccmp.org From: Joe <rigdonj(a)cfl.rr.com> Subject: DATA I/O SetSite module Reply-To: cctech(a)classiccmp.org Anybody know where I can find a PDF copy of the manual for this? Joe --__--__-- Message: 5 From: "Ken Carlin" <carlin(a)nauticom.net> To: <cctech(a)classiccmp.org> Subject: dnd Date: Thu, 1 May 2003 20:10:47 -0400 Reply-To: cctech(a)classiccmp.org Hello: I have been searching for the source code to DND for quite a long time now, and I ran across this post you made at some time in the past. Would you happen to have worked out the details in order to distribute the source code? I used to play this game in college many years ago, and it would mean quite a lot to me to get it up and running again. Thanks for any help that you can offer, Ken Carlin >From what I've read, banned inside of DEC is the best description :^) It >uses creatures and spells straight from D&D. Yep, I know exactly which one you speak of... I have the sources for the pascal version of the game, along with the data files, preserved for almost 20 years. I have ported the game to C using curses (actually, it was mostly a brute-force translation from the pascal) and have it running at least as well as the original pascal version (which was incomplete) at home on my Alpha PWS running Linux. I've been in contact with one of the people who was responsible for writing the pascal version, and am trying to get ahold of all the others so that I can figure out how to write up a 'copyright' page with proper attributions. >Basically all I know is what's written up at the following webpage: >http://www.io.com/~adastra/rancourt/dnd/ >It was written by Daniel Lawrence, started on the PDP-10, was ported to >RSTS/E part way through, and after that ported to VAX/VMS. I played it on RSTS/E when I was working at Parker St (DEC) in Maynard back in 1977. Actually, the pascal version was also built on RSTS using, I believe, the OMSI compiler, and ran on RT-11. Dan has apparently given permission for any and all versions of the game to exist with his blessing, but since the source I have had a copyright which is problematic (since it doesn't mention him), I have to try to do the right thing. >I grabbed the source off of the web page above, and it almost works. In >fact it might work, IF, I could figure out exactly how to build it. BTW, >the "TOPS-20" executable, looks to be a VMS V1.0 executable. If/when I can resolve the issues of attribution, I'd love to make it available... should I even bother with sourceforge? :-) Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | email: gentry at zk3.dec.com (work) | | Unix Support Engineering Group | mbg at world.std.com (home) | | Hewlett Packard | (s/ at /@/) | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 (DEC '77-'98) | required." - mbg KB1FCA | --__--__-- Message: 6 Date: Fri, 2 May 2003 01:13:57 -0500 From: Jeffrey Sharp <jss(a)subatomix.com> To: ClassicCmp Mailing List <cctalk(a)classiccmp.org> Subject: Re: More DEC Stuff Coming Reply-To: cctech(a)classiccmp.org On Thursday, May 1, 2003, Tony Duell wrote: > I got a red pen and made up some 'Danger Implosives' signs which I stuch > to the sides of the VR201. This was before the current panic over > terrorism, of course. Thus labelled, I carried the machine onto the train > and to London. I got some very odd looks ;-) When I was a bit younger I read PC/Computing. Penn Jillette used to write the back page, which I loved to read. In one issue, he recommended that people put commands in their AUTOEXEC.BAT file such that their computer would count down from 10 upon bootup, as if preparing to detonate. He suggested that this be done to have fun with the security people at airports who ask you to turn on your laptop. I wouldn't try this today! :-) I loved the back page of PC/C. As my special homage to it, at every job I've had, I have introduced the term 'Thurman unit' into the corporate vocabulary. Anybody else here remember what a Thurman unit is? -- Jeffrey Sharp --__--__-- Message: 7 From: "Robert F. Schaefer" <rschaefe(a)gcfn.org> To: <cctalk(a)classiccmp.org> Subject: Fw: Germany: Free RS/6000 ! Date: Thu, 1 May 2003 20:36:50 -0400 Reply-To: cctech(a)classiccmp.org Saw this on spamnet news... ----- Original Message ----- From: "Frank Ebinger" <Frank-Ebinger> Newsgroups: comp.sys.ibm.ps2.hardware Sent: Thursday, May 01, 2003 12:44 AM Subject: Germany: Free RS/6000 ! > Hello! > > Is anybody near Karlsruhe interested in RS/6000 > Model 320, 340, 360 and some other Models? > > Look at the Newsgroup ka.markt.computer > The University in Karlsruhe offers RS/6000 ! > > > Best regards > > Frank Ebinger --__--__-- Message: 8 To: cctalk(a)classiccmp.org From: blstuart(a)bellsouth.net Subject: Re: Heathkit EC-1 Date: Thu, 01 May 2003 19:59:06 -0500 Reply-To: cctech(a)classiccmp.org In message <BAD6D1C8.601C%design.fort(a)ns.sympatico.ca>, The Design Fort DTP wri tes: >I would be interested to learn more about the Heathkit EC-1 analog computer. >So far I only found pictures and specifications on the net. Is there a >website that actually explained how this machine worked and/or what it >could/can do. >Even more are there informations about "programs" that this machine could >run? > >I have to admit that the "analog" times of the computer age was a bit before >my time, but I really would love to learn more about it. Others have already posted some good information on this. However, I thought I'd mention a little thing I wrote up as a handout for a class on the history of computing I taught several years ago. You can find the html version at: http://bellsouthpwp.net/d/r/drbrians/analog/analog.html and a PDF file at: http://bellsouthpwp.net/d/r/drbrians/analog/analog.pdf It's not an in-depth treatment by any means, but it does give a run down on the basic math behind how they work. Brian L. Stuart --__--__-- Message: 9 From: "Keys" <jrkeys(a)concentric.net> To: "cctalk@classiccmp" <cctalk(a)classiccmp.org> Subject: Great Finds Todayin Houston Date: Thu, 1 May 2003 22:23:37 -0500 Reply-To: cctech(a)classiccmp.org I picked up the following items today while searching the thrifts: SGI Indigo2 IMPACT cpu only no KB or monitor with it. HP Visualize C180 cpu only no KB or monitor. HP apollo Series 700 product # A2286A. TRS-80 micro computer system Catalog # 26-01006-G. No monitor or power supply with it. Apple IIc Plus cpu only. Tandy 1000SL cpu only. NBA JAM cassette/cartridge for the Super Famicom. Panasonic R E A L FZ-10 3DO console. --__--__-- Message: 10 Date: Thu, 1 May 2003 22:52:10 -0700 (PDT) From: Ethan Dicks <erd_6502(a)yahoo.com> Subject: Re: Pens for TRS-80 PC-2 plotter - found. To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org --- Philip Pemberton <philpem(a)dsl.pipex.com> wrote: > If someone wants to send me one or two plotters with bad drive gears, > I'd be willing to have a go at repairing them. My technique involves > repairing the damage with Araldite (epoxy adhesive - sets rock hard) > and then putting a small (#10) staple in across the damaged section. I have a number of NOS plotter engines with nearly all (pre) cracked gears. I will be happy to loan you one, but I think you will find that your technique is not suitable for such a small gear. The diameter of the staple wire is about the same as the thickness of the plastic between the bottom of the groove and the bore. There are two gears per engine - X and Y. Same size. Same problem. One on the left, one on the right. I have used similar techniques (with success) fixing Atari joystick actuators (I used to get the joysticks for free from overenthusiastic friends with 2600s) You would have to get the plastic to mate up rather closely where the crack is - the "problem" is not that the shaft slips in the broken gear; it's that the gap causes the gear not to mesh with the driven gear and the gear train binds, preventing X or Y motion. > I'd be tempted to take a few 10ths of a mm off the inside of the hole > for the shaft that the gear fits onto. If they're cracking, the shaft is > probably too big for the hole. Enlarging the hole very slightly should > reduce the pressure a bit and hopefully make the gear last a few more > years that it would have done if it were not modified. The shaft diameter is 1/20" (1.27mm). If you enlarge the bore by 7%-14% (one or two tenths of a mm) off the inside of the gear, it will freewheel and fly off the shaft then get lost in the carpet. I have some closeup pictures I can e-mail to someone (no ftp access from the machine they are on) :-( The relative sizes of the gears are visible, as are the cracks. -ethan The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com --__--__-- Message: 11 From: "TeoZ" <teoz(a)neo.rr.com> To: <cctalk(a)classiccmp.org> Subject: Re: More DEC Stuff Coming Date: Fri, 2 May 2003 02:26:41 -0400 Reply-To: cctech(a)classiccmp.org No idea, does it have somthing to do with Uma Thurman which he mentions alot about in those articles? ----- Original Message ----- From: "Jeffrey Sharp" <jss(a)subatomix.com> To: "ClassicCmp Mailing List" <cctalk(a)classiccmp.org> Sent: Friday, May 02, 2003 2:13 AM Subject: Re: More DEC Stuff Coming > On Thursday, May 1, 2003, Tony Duell wrote: > > I got a red pen and made up some 'Danger Implosives' signs which I stuch > > to the sides of the VR201. This was before the current panic over > > terrorism, of course. Thus labelled, I carried the machine onto the train > > and to London. I got some very odd looks ;-) > > When I was a bit younger I read PC/Computing. Penn Jillette used to write > the back page, which I loved to read. In one issue, he recommended that > people put commands in their AUTOEXEC.BAT file such that their computer > would count down from 10 upon bootup, as if preparing to detonate. He > suggested that this be done to have fun with the security people at airports > who ask you to turn on your laptop. I wouldn't try this today! :-) > > I loved the back page of PC/C. As my special homage to it, at every job > I've had, I have introduced the term 'Thurman unit' into the corporate > vocabulary. Anybody else here remember what a Thurman unit is? > > -- > Jeffrey Sharp --__--__-- Message: 12 Date: Fri, 2 May 2003 03:04:06 -0400 (EDT) From: du651(a)freenet.carleton.ca (Joseph Ballantyne) To: cctalk(a)classiccmp.org Subject: wanted: documentation for IBM 3164 terminal Reply-To: cctech(a)classiccmp.org I want these IBM publications (especially A18-2317): GA18-2317 3164 ASCII Color Display Station Description GA18-2319 3164 ASCII Color Display Station Setup Instructions SY18-2118 3164 ASCII Color Display Station Repair Center Maintenance Info SY18-2120 3164 ASCII Display Station Repair Center Maintenance Information GA18-2563 ALA User's Guide for 3163/3164 GA18-2720 3163 and 3164 Emulating IBM Terminals and DEC VT100/52 Terminals GA18-2736 3163/3164 Enhanced Emulation of TeleVideo 950 I have A18-2318 so don't want more of that, but if you know of other 3164 publications that I don't know about, do please tell. I'm in Ottawa ON Canada. As far as I know, international shipping into Canada is not practical, so I'm interested in antiques that happen to be already in Canada. --__--__-- Message: 13 From: "Witchy" <witchy(a)binarydinosaurs.co.uk> To: <cctech(a)classiccmp.org>, <cctalk(a)classiccmp.org> Subject: RE: More DEC Stuff Coming Date: Fri, 2 May 2003 09:51:22 +0100 Reply-To: cctech(a)classiccmp.org > > something home for me (TRS80 MIII) some baggage 'handlers' > forgot that glass > > breaks when its dropped :( > > I beleive the original packing box for the M3/M4 had the following > printed on it : 'Do not drop, or CRT may implode' ... Mind you , I once Oddly enough that's exactly what happened......grrrr..... > had a CRT sent by Royal Mail (who are good at wrecking things!) in a > cardboard box with _no_ packing -- just rattling around in the box, and > it arrived in onve piece. How, I will never know... Strange, the only time I've ever received a CRT (black Microvitec to match the Sinclair QL) it was nicely packed and it STILL arrived broken. Well, not *just* broken, smashed completely in fact. Bless parcelforce's cotton socks. cheers -- adrian/witchy www.binarydinosaurs.co.uk - the online computer museum www.snakebiteandblack.co.uk - monthly gothic shenanigans --__--__-- Message: 14 Date: Fri, 2 May 2003 07:37:33 -0400 From: "David de Gruyl" <david(a)bhaermandegruyl.org> To: cctalk(a)classiccmp.org Subject: VAXStation 4000/90 Manuals Reply-To: cctech(a)classiccmp.org I was looking around on the internet (mainly decdocs.org and linked sites, as well as google) and I was unable to locate scanned manuals for the Vaxstation 4000/90. If anyone has a link to such documents, I would appreciate it. My problems revolve around a newly aquired machine which does not appear to be giving me console access over the MMJ port in the rear of the box. As I said, this is a newly aquired machine, and I have not really taken it apart yet, but the manuals would be helpful in any event. David -- David de Gruyl <david(a)bhaermandegruyl.org> --__--__-- Message: 15 Date: Fri, 02 May 2003 08:23:22 -0400 To: cctech(a)classiccmp.org From: John Boffemmyer IV <john_boffemmyer_iv(a)boff-net.dhs.org> Subject: Re: Inquiry about Classic Computers Collectors List Reply-To: cctech(a)classiccmp.org Ooh, Seagate, very helpful definitely one to keep in the address book =) -John At 11:51 AM 4/30/2003, you wrote: >On Monday, April 28, 2003, ReCarDeaux(a)aol.com wrote: > > From 1977 to 1991, I worked for General Electric, Honeywell, Magnetic > > Peripherals, Control Data, Imprimis, and Seagate. I am interested in > > staying in touch with people/computers of that era. Is your list for me? > > > > Richard Oklahoma City, OK 73118 Email ReCarDeaux(a)aol.com > >I'm not exactly of that era (I'm 24), but I love machines that are. I'm >also located in the OKC Metro. I live in Norman and work for a large >company near Classen and Western. I have a medium-sized collection of >mostly DEC PDP-11s, VAXen, and old Suns. I also help administrate this >list. > >I think you would have an enjoyable time as a list member. There are two >ways to subscribe. The first is cctalk, which is unmoderated and delivered >immediately. The second is cctech, which is moderated for topic and >delivered after an average delay of 12 hours. Please be aware that both >share the same on-topic messages, so you should only subscribe to one of the >two. Subscribing to both will get you nothing but duplicate messages. > >See our web site at: http://www.classiccmp.org/ > >It would be great to have someone else from my area on the list. AFAIK the >closest existing subscriber is in Fort Worth. > >-- >Jeffrey Sharp ---------------------------------------- Founder, Lead Writer, Tech Analyst and Web Designer Boff-Net Technologies http://boff-net.dhs.org/index.html --------------------------------------- --__--__-- Message: 16 Date: Fri, 02 May 2003 15:17:03 +0100 From: Paul Williams <celigne(a)celigne.freeserve.co.uk> Organization: http://vt100.net/ To: cctalk(a)classiccmp.org Subject: Re: VAXStation 4000/90 Manuals Reply-To: cctech(a)classiccmp.org David de Gruyl wrote: > > I was looking around on the internet (mainly decdocs.org and linked > sites, as well as google) and I was unable to locate scanned manuals for > the Vaxstation 4000/90. If anyone has a link to such documents, I would > appreciate it. Manx shows that the Owner's Guide and Service Information are online: http://vt100.net/manx/search?cp=1;q=vaxstation+4000;num=20;on=0 - Paul --__--__-- Message: 17 Date: Fri, 2 May 2003 11:09:37 -0400 From: "David de Gruyl" <david(a)bhaermandegruyl.org> To: cctalk(a)classiccmp.org Subject: Re: VAXStation 4000/90 Manuals Reply-To: cctech(a)classiccmp.org * on [03-05-02 10:27] Paul Williams wrote: >David de Gruyl wrote: >> >> I was looking around on the internet (mainly decdocs.org and linked >> sites, as well as google) and I was unable to locate scanned manuals for >> the Vaxstation 4000/90. If anyone has a link to such documents, I would >> appreciate it. >Manx shows that the Owner's Guide and Service Information are online: >http://vt100.net/manx/search?cp=1;q=vaxstation+4000;num=20;on=0 I was not aware of manx, thank you. David -- David de Gruyl <david(a)bhaermandegruyl.org> --__--__-- Message: 18 Date: Fri, 2 May 2003 08:35:05 -0700 (PDT) From: James Willing <jimw(a)agora.rdrop.com> To: classiccmp(a)classiccmp.org Subject: More items from the 'Garage'... Reply-To: cctech(a)classiccmp.org Finding myself (yet again) in the unenviable position of needing to free up both some space and a fair chunk of money in a (very) short amount of time, it is time to release a few more items from the 'Garage' to new homes... As I'm still having problems with getting (large) things shipped out, I'll be making one run out to the 'big city' to seek a shipping place for packing and shipping, so everything will go out at once... Items up for purchase: -------------------------------------- Heath H-11a / H27 system H-11a Chassis M7270 LSI 11/2 CPU WHA-11-16 16x16 RAM (2) H11-5 Serial card (2) WH11-5 Serial card H11-2 Parallel card H27 Floppy Interface H27 Dual Drive unit Untested, no docs or disk based software. Includes Heath paper tape based software. $600 plus shipping -------------------------------------- Heath H-10 paper tape reader/punch includes manual Runs but needs cleaning/alignment $150 plus shipping (or $100 if purchased w/H-11 system) -------------------------------------- Heath H-8 / H17 / H37 system H8 Chassis HA8-6 Z80 CPU WH8-64 RAM Multi Port Serial Card H17 Floppy Interface H37 Floppy Interface H17 Dual Drive unit H37 Dual Drive unit Runs, but has issues with formatting floppys... Includes hardware manual set, some software. $400 plus shipping -------------------------------------- Heath 8 inch drive chassis Not real sure of the ID on this one, but someone has suggested that it is H207-40 Drive chassis with one half-height 8 inch floppy drive installed. Blank panel suggests room for a second drive. Untested... no docs. $40 plus shipping -------------------------------------- Polymorphics Systems 8813/2 System Unopened, in original factory packaging! This unit is a twin of the 'amazing smoking computer' seen in the 'This Old Computer' presentation at VCF IV Dual drive, 64k RAM, original manuals and software. System 88 User's Guide System 88 Software Wordmaster This unit has not been out of it's box since it left the Polymorphics factory probably 20 years ago! Untested... (at least by me) obviously... $300 plus shipping -------------------------------------- All items are first come, first served... If you are in the area (SE Kansas) and can pick up then all the better. -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw --__--__-- Message: 19 Date: Fri, 02 May 2003 12:18:46 -0400 (EDT) From: philip(a)awale.qc.ca To: Patrick Finnegan <pat(a)purdueriots.com> Subject: RE: FS/FT Items Cc: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org On 30-Apr-2003 Patrick Finnegan wrote: > On Wed, 30 Apr 2003 philip(a)awale.qc.ca wrote: > >> >> On 29-Apr-2003 Patrick Finnegan wrote: >> > I'm looking for either QBUS parts, or $5 + shipping for each of the >> > following.. Trying to clean out my room before I have to move in a >> > few >> > months. >> > >> > - SparcStation 20, 32MB ram, 1x50MHz proc, floppy, 2GB HDD. >> > I have 2 of these to get rid of. >> >> I'd be interested in one of these. Or have they be claimed already. >> Could you give me an estimate on shipping to Qu?bec (J0B 2C0) ? > > All of the sparcstation 20's have been taken. Ah well. -Philip --__--__-- Message: 20 Date: Fri, 02 May 2003 12:48:35 To: cctalk(a)classiccmp.org From: Joe <rigdonj(a)cfl.rr.com> Subject: FA: HP computer manuals; Pascal, Fortran, IPC Reply-To: cctech(a)classiccmp.org I've just finished listing a bunch of HP computer and software manuals on E-bay. A lot of the manuals cover HP-UX and are likly to be applicable to the IPC. Don't just go by the titles, look through the HP-UX manuals to see which one you think are applicable. Also listed HP pascal and Fortran manuals and a DATA I?O Setsite module for the Unisite programmer. see <http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&userid=rigdonj> if interested. Joe --__--__-- Message: 21 From: "Patrick Rigney" <patrick(a)evocative.com> To: <cctalk(a)classiccmp.org> Subject: RE: H89 disk formats? Date: Fri, 2 May 2003 10:27:26 -0700 Reply-To: cctech(a)classiccmp.org Dwight, I was going through a stack of HUG diskettes last night just taking stock of what I have, and lo and behold, I have a utilities disk with a HUG-modified H-17 driver that supports two-sided 40- and 80-track drives (hard sector still, of course). Judging from the instructions, it seems that basically replacing SY.DVD on a disk with this new driver (and of course, having the right drive in the machine) would get it working. It seems plausible that the disk could have been made on a system with this driver. It comes with assembly source as well, and even versions for machines upgraded to 3- and 4-Mhz operation. No mods to the controller itself appear to be necessary. Let you know if you'd like a copy. Patrick > >From: "Don Maslin" <donm(a)cts.com> > > > >Dwight, I would assume that they were done on a 96tpi > >floppy drive. > > - don > > > > Hi Don > That is what I figured. I've been working on my serial > bootstrap and transfer program. I'm able to read and > write an image to the H89 but I'm still having issues > getting the formatting to work. I copied some old > code that I have in the Fig-Forth that I did but it > is still missing something. I even went back and ran > the Forth FORMAT and it works fine. I suspect there is > some other initialization that I'm missing. I looked at > one stretch of code and there is an operation that should > always hang. Can't figure why the original works. It > may be something connected to the timer interrupt that > isn't normally there. I wish I'd made good notes when > I did the original but this was one of my first computer > projects, after working on my Poly88, and brain rot > is now catching up with me. > Once I get the format working, I can work on cleaning > up the user interface. Looking at the 96 stuff is a > little later on the list. > Dwight --__--__-- Message: 22 Date: Fri, 02 May 2003 11:17:12 -0700 From: Doug Coward <mranalog(a)attbi.com> To: cctalk(a)classiccmp.org Subject: Re: Heathkit EC-1 Reply-To: cctech(a)classiccmp.org The Design Fort DTP wrote: > I would be interested to learn more about the Heathkit EC-1 > analog computer. So far I only found pictures and specifications > on the net. Is there a website that actually explained how > this machine worked and/or what it could/can do. > Even more are there informations about "programs" that this > machine could run? Most computer applications are simulations of one kind or another, word processors, spreadsheets, drawing programs, even a desktop GUI. Analog computers are the masters of the art of simulation, but they are not used for mundane simulations like these. Analog Computers run mathematical simulation of physical systems. Everything from the decay of subatomic particles to the interaction of two colliding galaxies. Do you want to: * See the results of a chemical reaction? * Test the design of an automobile tire? * Study the effects of pollution on a fish population? * Model blood flow through an organ? * Understand the effects of lowering the interest rate? * Fine tune the design of the Space Shuttle main engine? * Control flooding on a major river? * Explore new types of music? All of these are physical systems governed by mathematical equations. Analog computers are PURELY parallel and can run programs slower than real time, real time or faster than real time. Simulations can be halted at any point and all aspects of the simulation can be examined. Changes can then be made and the simulation can then be continued from the point it was halted or restart from the beginning. So, analog computers can not only simulate a fixed systems, but can also test 'what if' cases very easily. Analog computers can be a hardwired special purpose type or flexible general purpose type. The EC-1 with only nine amplifiers can be limiting in the size of simulations it will handle. But analog computers don't have the compatibility and the connectivity problem of digital computers. Ten EC-1s could be connected together to form an EC-1 with 90 amplifiers. The only problem would be if more than 9 integrators were used then a slight modification would have to be made to each EC-1 using an integrator to allow one EC-1 to control the mode. An EC-1 can also be directly connected to another brand of analog computer. No problem other than the mode control of integrators. The lure of the EC-1 is that it a inexpensive and compact example of vacuum tube computing. The world is analog. The human mind is analog. Digital computers make a nice hobby, and work just fine for tasks composed of sequential steps, but they are just an over hyped fad. --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog ========================================= --__--__-- Message: 23 Date: Fri, 02 May 2003 11:59:27 -0700 From: Doug Coward <mranalog(a)attbi.com> To: cctalk(a)classiccmp.org Subject: Re: Heathkit EC-1 Reply-To: cctech(a)classiccmp.org Ethan wrote: > How does a resistive sheet computer work? Just a quick note for now. Resistive sheets belong to a category of analog computing called network analyzers. > In the same vein (pun intended)... how would fluidic computers > stack up? Digital? Analog? Mixed? Fluidics (or fluid logic) can have both analog and digital processes. You can perform boolean operations, but you also can have fluid amplifers. --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog ========================================= --__--__-- Message: 24 Date: Fri, 2 May 2003 11:48:37 -0700 (PDT) From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com> Subject: Re: Heathkit EC-1 To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org >X-Server-Uuid: 262C4BA7-64EE-471D-8B02-117625D613AB >X-Authentication-Warning: huey.classiccmp.org: mailnull set sender to cctalk-admin using -f >From: "Doug Coward" <mranalog(a)attbi.com> >X-Accept-Language: en >MIME-Version: 1.0 >To: cctalk(a)classiccmp.org >Subject: Re: Heathkit EC-1 >X-BeenThere: cctalk(a)classiccmp.org >X-Mailman-Version: 2.0.10 >List-Unsubscribe: <http://www.classiccmp.org/mailman/listinfo/cctalk>, <mailto:cctalk-request@classiccmp.org?subject=unsubscribe> >List-Id: General Discussion: On-Topic and Off-Topic Posts <cctalk.classiccmp.org> >List-Post: <mailto:cctalk@classiccmp.org> >List-Help: <mailto:cctalk-request@classiccmp.org?subject=help> >List-Subscribe: <http://www.classiccmp.org/mailman/listinfo/cctalk>, <mailto:cctalk-request@classiccmp.org?subject=subscribe> >List-Archive: <http://www.classiccmp.org/pipermail/cctalk/> >X-Original-Date: Fri, 02 May 2003 11:59:27 -0700 >Date: Fri, 02 May 2003 11:59:27 -0700 >X-WSS-ID: 12AC63976885576-01-01 >Content-Transfer-Encoding: 8bit > > Ethan wrote: >> How does a resistive sheet computer work? > > Just a quick note for now. > Resistive sheets belong to a category of analog >computing called network analyzers. > >> In the same vein (pun intended)... how would fluidic computers >> stack up? Digital? Analog? Mixed? > > Fluidics (or fluid logic) can have both analog >and digital processes. You can perform boolean >operations, but you also can have fluid amplifers. Hi An interesting side note. The power steering of your auto is an example of an analog fluid amplifier. Dwight > --Doug >========================================= >Doug Coward >@ home in Poulsbo, WA > >Analog Computer Online Museum and History Center >http://dcoward.best.vwh.net/analog >========================================= --__--__-- Message: 25 Date: Fri, 02 May 2003 13:07:02 -0600 From: emanuel stiebler <emu(a)ecubics.com> To: "cctalk(a)classiccmp.org" <cctalk(a)classiccmp.org> Subject: Looking for a 11/44 in denver area / colorado Reply-To: cctech(a)classiccmp.org Hi, Anybody out in colorado with a "spare" 11/44 ? Or even just a power supply for a 11/44 ? cheers & thanks --__--__-- Message: 26 Date: Fri, 02 May 2003 13:41:54 -0700 To: cctalk(a)classiccmp.org From: Geoff Reed <geoffr(a)zipcon.net> Subject: RE:256x4 80NS or faster Reply-To: cctech(a)classiccmp.org the ones I'm trying to match are TMS44C256-80 At 07:54 AM 5/1/03 -0700, you wrote: >I have a fair quantity of the following: > >P21256-12 >MCM6256BP12 >Lh21256-12 >MTC4c1024-8 >KM41C1000BP-8 > >thanks Norm >snip: > > >Date: Tue, 29 Apr 2003 11:37:28 -0700 > >To: classiccmp(a)classiccmp.org > >From: Geoff Reed <geoffr(a)zipcon.net> > >Subject: 256x4 80NS or faster > >Reply-To: cctalk(a)classiccmp.org > > >anyone have any of these floating around? I can't believe I gave 'em all > >away and now I need to populate a laserjet IIID memory board :( --__--__-- Message: 27 Date: Fri, 02 May 2003 17:12:52 To: cctalk(a)classiccmp.org From: Joe <rigdonj(a)cfl.rr.com> Subject: RE:256x4 80NS or faster Reply-To: cctech(a)classiccmp.org At 01:41 PM 5/2/03 -0700, you wrote: >the ones I'm trying to match are TMS44C256-80 These are 4 x 256k RAMs. See my previous post about where to find them. Joe > >At 07:54 AM 5/1/03 -0700, you wrote: >>I have a fair quantity of the following: >> >>P21256-12 >>MCM6256BP12 >>Lh21256-12 >>MTC4c1024-8 >>KM41C1000BP-8 >> >>thanks Norm >>snip: >> >> >Date: Tue, 29 Apr 2003 11:37:28 -0700 >> >To: classiccmp(a)classiccmp.org >> >From: Geoff Reed <geoffr(a)zipcon.net> >> >Subject: 256x4 80NS or faster >> >Reply-To: cctalk(a)classiccmp.org >> >> >anyone have any of these floating around? I can't believe I gave 'em all >> >away and now I need to populate a laserjet IIID memory board :( --__--__-- Message: 28 Date: Fri, 02 May 2003 17:24:58 To: cctalk(a)classiccmp.org From: Joe <rigdonj(a)cfl.rr.com> Subject: Re: HP Amigo command set and HFS disk format Reply-To: cctech(a)classiccmp.org Hi Peter, At 08:44 PM 5/2/03 +0000, you wrote: >Hi All, > >Looks as though the CS80 / LIF part of my HPIB disk reader/writer is working >OK now - thanks to those who gave me pointers. > >I've come across another HPIB hard disk that that uses the Amigo command set >(- I think) and contains data in HFS format. I'd be surprised if it is Amigo and uses HFS. What kind of drive is it? I can tell you for certain what kind of command set it uses. > >Does anyone have full documentation for these two standards in .pdf format? You asked me about this a few days ago but I've been busy and forgot to reply. I have a document called "HP Flexible Disk Drive Command Set" that I'm pretty sure contains a description of the Amigo command set. It's an appendix to the HP 9114 disk drive service manual. It's 36 pages long. I can send you a copy or I'll send it to Al K. or anyone else that wants to scan it and post it on the web somewhere. Joe > >Cheers > >Peter Brown > >_________________________________________________________________ >On the move? Get Hotmail on your mobile phone http://www.msn.co.uk/mobile --__--__-- Message: 29 Date: Fri, 02 May 2003 15:36:10 -0700 From: Doug Coward <mranalog(a)attbi.com> To: cctalk(a)classiccmp.org Subject: Re: Heathkit EC-1 Reply-To: cctech(a)classiccmp.org Ethan wrote: > How does a resistive sheet computer work? I wrote: > Resistive sheets belong to a category of analog > computing called network analyzers. Oops, I need to correct this. Resistive sheets belong to a category of analog computing called passive element computers in which network analyzers are probably the biggest and most well known examples. But it also includes * conductive sheets * electrolytic tanks - create 3 dimensional simulations * resistor networks * pin and rod systems * resistor and capacitor network Passive element computers normally models a physical system using only passive R-L-C components, and solve equations in which dimensions in space are the independent variables, rather than time. Applications for passive element computers include things like the simulation of * reception patterns of a receiving antenna * temperture, and pressure flow in a nozzle * diffusion of material at a transistor junction Here is an example: You solder together a large two dimensional matrix of resistors (all the same value). At each node where the resistors are soldered together you solder a capacitor connected to ground. You then apply a voltage to one corner of this resistor and capacitor network. As the current flows through the network it begins to charge the capacitors. You now have a computer that simulates the heat flow across a metal plate the size of your matrix, both over distance and over time. Without the capacitors you are simulating only over distance. A resistive sheet is a resistor matrix with a very fine mesh. The finer the mesh, the better the simulation. "Rubber-sheet computers have been used extensively to study the trajectories of electrons and gas ions in vacuum and gas tubes" -Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog ========================================= --__--__-- Message: 30 Date: Fri, 2 May 2003 15:47:20 -0700 (PDT) From: Ethan Dicks <erd_6502(a)yahoo.com> Subject: Re: Heathkit EC-1 To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org --- "Dwight K. Elvey" <dwightk.elvey(a)amd.com> wrote: > Hi > An interesting side note. The power steering of your > auto is an example of an analog fluid amplifier. > Dwight I don't think _my_ auto (1968 Beetle) is an example of that. :-) -ethan The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com --__--__-- Message: 31 Date: Fri, 2 May 2003 16:10:32 -0700 (PDT) From: Ethan Dicks <erd_6502(a)yahoo.com> Subject: Neat find (in my own junk bin!) - NS 8073 To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org I was collecting all of my hex LED displays into one place so I can test them before embarking on a new 1802 project. I even dug into my old box of spare Elf parts and pulled out a small board with four TIL311 displays attached to a small microcontroller board - some kind of monitor/indicator given to me by the brother of the guy that got me into the 1802 as a kid. He had given it to me to harvest the TIL displays. I finally *looked* at the attached board to see what was on it - an NS 8073! I used to have access to an RB5X robot when I was a volunteer at the local science museum in High School - same chip - the hot-item-for-a-brief-moment microcontroller with embedded Tiny Basic. Now, rather than harvest the parts, I'm very tempted to reverse-engineer the schematic of the little board to see what it does. Looks like there's a small bipolar PROM, a 6116 SRAM, one or two TTL chips, and the TIL311s driven by the output pins of the 8073. The whole thing is only a few square inches. The funny thing is that I'd recently picked up a few 8073s from ePay to play with. I was planning on hooking them up to some 8031-based 8-line LCD displays I got for a few bucks each (originally out of some flavor of AT&T office phone, IIRC). Sort of the Classic Attraction principle in reverse - new toys attracting alike items >from the recesses of the junk box rather than the normal way 'round. Has anyone else played with the 8073 (in an RB5X or not)? If they hadn't been so pricey 20 years ago, I might have gotten one to experiment with back then. -ethan The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com --__--__-- Message: 32 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: Looking for a 11/44 in denver area / colorado To: cctalk(a)classiccmp.org Date: Sat, 3 May 2003 00:35:53 +0100 (BST) Reply-To: cctech(a)classiccmp.org > Hi, > Anybody out in colorado with a "spare" 11/44 ? > Or even just a power supply for a 11/44 ? Are you missing the PSU, or do you have one that doesn't work? Although it's by no means my favourite PSU to work on, it is possible to repair these supplies and live to tell the tale (!). If you're happy working on SMPSUs (with lethal 400V DC supplies everywhere), I can probably help you find the fualt -tony --__--__-- Message: 33 Subject: Northgate OmniKey Ultra From: David Holland <dholland(a)woh.rr.com> To: Classic Computer Talk <cctalk(a)classiccmp.org> Date: 02 May 2003 20:28:24 -0400 Reply-To: cctech(a)classiccmp.org Howdy all, I stumbled across a Northgate Omnikey Ultra (not UltraPlus) keyboard in the local thrift store, and picked it up for 5$. (It had a nice feel, kinda PS/2'ish, and no stupid windows, or various other internet/volume controls/etc keys.) I've had it for about a week now, and just can't get used to funky arrangement of the arrow keys in the middle, and the F keys on the left just throws my Unreal Tournament gaming off. (See http://www.northgate-keyboard-repair.com for some piccy's) Anyways, I gather these things were something of a 'gotta have it' keyboard at one time, and were bloody expensive. Thought I'd offer it up here, for 5$ + shipping before it goes downstairs in the basement to collect dust. One thing to note, is its got one of the AT style connectors in back, so you'll need an adapter if your going to plug it into a PS/2 style connector. (No, you can't have the one I was using) Visually, its pretty clean, there's a little green stuff on the bottom where I attacked (mostly ineffectively) some sticky stuff w/ a scrubbing sponge, but the top is (imho) nice and clean. I think all the keys work, however, there might be a few F keys I didn't hit the week I was using it. I gather it might of came with some extra keycaps when it was new, so you could move around control/shift. I do not have those. Anyways, enough disclaimers, Anyone want it? (I think this is at least on-topic) David --__--__-- Message: 34 Date: Fri, 2 May 2003 18:11:48 -0700 (PDT) From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com> Subject: Re: Heathkit EC-1 To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org >From: "Doug Coward" <mranalog(a)attbi.com> > > Ethan wrote: >> How does a resistive sheet computer work? > > I wrote: >> Resistive sheets belong to a category of analog >> computing called network analyzers. > > Oops, I need to correct this. > Resistive sheets belong to a category of analog Hi This is the place to describe my method of finding shorts on power planes. This is very much like the resistive sheet methods. You place a power supply across one of the two planes that has shorts between them, such that about one or two amps is flowing in current limit. You place one lead of a volt meter on the opposite plane and then probe with the other lead on the plane with the current flowing across it. You find a line where the meter reads zero. Now, move the power leads to an orthogonal corners. Again fine the line of zero volts. Where the two lines cross, you'll find the short. There are variations of this method for finding shorts between traces and even multiple shorts. Dwight --__--__-- Message: 35 Date: Fri, 2 May 2003 18:45:02 -0700 (PDT) From: Vintage Computer Festival <vcf(a)siconic.com> To: Classic Computers Mailing List <cctalk(a)classiccmp.org>, <cctech(a)classiccmp.com> Subject: VCF Europa 4.0 Reply-To: cctech(a)classiccmp.org This weekend is VCF Europa 4.0 in Muenchen, Deustchland! Complete information is on the VCF Europa website: http://www.vcfe.de I look forward to reports from those that make it since I won't be present this year :( -- Sellam Ismail Vintage Computer Festival ---------------------------------------------------------------------------- -- International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com * --__--__-- Message: 36 To: cctalk(a)classiccmp.org Subject: Re: Northgate OmniKey Ultra From: Frank McConnell <fmc(a)reanimators.org> Date: 02 May 2003 18:33:14 -0700 Reply-To: cctech(a)classiccmp.org David Holland <dholland(a)woh.rr.com> wrote: > I've had it for about a week now, and just can't get used to funky > arrangement of the arrow keys in the middle, and the F keys on the left > just throws my Unreal Tournament gaming off. So we know it's one of the sort with the Omni key instead of an inverted-T layout. If it's an Ultra, it should also have the function keys across the top. > Anyways, I gather these things were something of a 'gotta have it' > keyboard at one time, and were bloody expensive. Not that bad. In the mid-1990s you could get them for about $70, which seems expensive for a keyboard, but for those of us who really wanted the control key to be to the left of A and didn't want to have to fuss with driver software to make it happen, it was well worth it. If you want expensive, go check out the Avant Stellar! That is reportedly the modern Northgate OmniKey, and it sells for about $150. > I gather it might of came with some extra keycaps when it was new, so > you could move around control/shift. I do not have those. So, some questions to help folks ID what you've got. Is the control key to the left of A? Where are the switches? Poking out the back, or hidden under the "OmniKey" flip-top lid, or not present at all (flip the lid up, see nothing)? Not present at all means it is a late-model programmable keyboard. They had firmware bugs, and the "fix" was "remove the EEPROM that holds the key remappings". > Anyone want it? (I think this is at least on-topic) Somebody better! -Frank McConnell --__--__-- Message: 37 From: "Greg Elkin" <cctech(a)bouncy-castle.demon.co.uk> To: cctalk(a)classiccmp.org Date: Sat, 03 May 2003 10:30:30 +0100 Subject: MicroVAX4000/5050A drive sleds Reply-To: cctech(a)classiccmp.org Just acquired a VAX 4000/505A (thanks Paul!) with no disks installed - anyone got the details for adding a raw DSSI disk to one of these things ; the chasis has a drive drive backplane at the top with 4 edge connectors, into which a drive sled of some form slots in. I need to knock up whatever is on the sleds, drive LEDs & switches. Unless anyone has some excess sleds that I could liberate?... Ohhh, wonder if the MDS pils of docs has any details on this - off to look now :) ta greg --__--__-- Message: 38 Date: Sat, 3 May 2003 22:52:02 +1200 Subject: TRS-80 / System 80 From: Alan Greenstreet <aeg(a)paradise.net.nz> To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org Hi All I have just acquired a System 80 MkII (distributed in Australasia by Dick Smith Electronics). On power up I get the LED power light ok but a screen full of random characters, the reset switch does nothing. I've had it apart and there are no loose connections or chips on the two main boards and no sign of any burnt or expired components. Has anyone had similar problems and / or knows what the problem is? Thanks Alan --__--__-- Message: 39 From: "Robert F. Schaefer" <rschaefe(a)gcfn.org> To: <cctalk(a)classiccmp.org> Subject: Re: MicroVAX4000/505A drive sleds Date: Sat, 3 May 2003 07:15:32 -0400 Reply-To: cctech(a)classiccmp.org ----- Original Message ----- From: "Greg Elkin" <ClassicComputers(a)bouncy-castle.demon.co.uk> To: <cctalk(a)classiccmp.org> Sent: Saturday, May 03, 2003 6:40 AM Subject: MicroVAX4000/505A drive sleds > Just acquired a VAX 4000/505A (thanks Paul!) with no disks installed - > anyone got the details for adding a raw DSSI disk to one of these > things ; the chasis has a drive backplane at the top with 4 edge > connectors, into which a drive sled of some form slots in. I need to > knock up whatever is on the sleds, drive LEDs & switches. Unless > anyone has some excess sleds that I could liberate?.. Cant help with the sleds, but it is possible to run DSSI drives without the ID plug, see http://www.mcmanis.com/chuck/computers/vaxen/dssi-plug.html. Short answer: logon to the console of the drives' embedded processor and tell it it's new address! Can your peasea do that? ^_^ > ta > greg Bob --__--__-- Message: 40 From: "Bob Clark" <bob.c(a)dial.pipex.com> To: <cctalk(a)classiccmp.org> Subject: Gnomes Date: Sat, 3 May 2003 15:19:40 +0100 Reply-To: cctech(a)classiccmp.org Yes I remember Bob Clark (http://www.classiccmp.org/pipermail/cctalk/2003-January/014196.html) because I am he, and I remember Peter Turnbull too. This is getting silly, because this week I have relocated Bill Olivier (CommunITel) and Lindsay Reid (Viewfax 258), mostly by accident. Best regards, Bob --__--__-- Message: 41 Date: Sat, 03 May 2003 11:00:47 To: cctalk(a)classiccmp.org From: Joe <rigdonj(a)cfl.rr.com> Subject: HP's Amigo Protocall & HP IPC Reply-To: cctech(a)classiccmp.org Yesterday I was cleaning out and putting some excess HP manuals on E-bay. One of the books that I found, HP-UX Concepts and Tutorials - Device I/O and User Interfacing, looked interesting but was still sealed so I listed it without opening it to see exactly what it covered. (I'm not real big on HP-UX). Today I found another copy of the same manual. It was alreadu opened so I've been reading through it. First, it DOES cover the HP IPC (Intergral Personal Computer) along with the HP 9000 Series 200/300, Series 500 and Series 800 computers. Each function that only applies to certain systems is flagged and there are appendices for the IPC and each of the other series that list and describe any peculiarities of that implementation. BUT what was even more surprising is that it states that many of the HP printers use the Amigo protocall! For the ones of you that aren't familiar with HPs that protocall is used for low end disk drives. This is the first time that I've heard that ! was also used for printers. Besides that statement it also has a "non-trivel" programming example of an "HP-IB driver that uses the Device I/O Library subroutines to drive various models of the HP Amigo protocall HP-IB printers". This might be a good starting point for anyone that wants to write and Amigo driver to talk to disk drives. Are you listening, Sergio and Peter? This book is definitely a keeper! It describes the HP-IB and GPIO interfaces for the various systems in detail including their status and control registers. It then describes how to use the DIL (Device I/O Library) included with HP-UX to set, read and control the interfaces and how to link calls to the DIL from Fortran, Pascal and Assembly language programs. It looks like a great source of info for anyone that wants to write their own device drivers or wants low level control of HP-IB and GPIO interfaces under HP-UX. I'm keeping this copy but I have another one that's already on E-bay. I know this sounds like a shameless plug but it's not. I'm just really impressed with this book. Joe --__--__-- Message: 42 From: "Bob Clark" <bob.c(a)dial.pipex.com> To: <cctalk(a)classiccmp.org> Subject: Fw: Viewfax 258 Date: Sat, 3 May 2003 16:07:24 +0100 Reply-To: cctech(a)classiccmp.org ----- Original Message ----- From: Bob Clark To: mel(a)pullen.com ; danny(a)spesh.com ; Glyn Philips ; Lindsay Reid Sent: Saturday, May 03, 2003 3:35 PM Subject: Viewfax 258 My god what a week this has been for finding old friends. First Bill Olivier, then Sue wakes me up this morning (or afternoon possibly) - there's a Lindsay Reid on the phone, would I like to talk to him? What, talk to Lindsay for the first time in 15 years, yawn oh ok then if I must. This three days after we had complained that Lindsay had gone completely unfindable on the web, and was obviously dead. What we didn't do of course was try www.viewfax.com. Lindsay was ringing to ask if anyone remembers or better still knows a man >from the olden pirate radio days called Richard Fox-Davies, aka Dick. This name rings strong bells with me, but I can't remember why. Anyone? (My extensive researches this afternoon reveal that his books for kids are still popular in Western Australia, assuming this is the same guy: http://henrietta.liswa.wa.gov.au:90/search/aFox-Davies/afox+davies/1,3,25,B/ e xact&FF=afox+davies+dick&1,2 ) This may be a justified cause for an NTK (http://www.ntk.net/) appeal Dan, because... ... the good news is that Lindsay still has Viewfax 258 backed up on 5.25" floppy disks. There's quite a few disks, and we'd have to sort through them somewhat to find the Gnomey bits. But Lindsay is happy to loan his disks to Glyn the man with the archaic hardware, all he needs is his address. Then he'd like his disks back. I figure we could probably blow the lot onto the first quarter inch of a CD for him. So our dream may come true and we'll have both the Gnome on Prestel and the Gnome at Home splurged all over our shiny new web site. Meanwhile, please admire my wonderfully wonky first-stab character set one more time... Bob PS Late-breaking news, Peter Turnbull rediscovered too: http://www.classiccmp.org/pipermail/cctalk/2003-January/014196.html [demime 1.01a removed an attachment of type application/octet-stream which had a name of viewfax7.jpg] --__--__-- Message: 43 Date: Sat, 3 May 2003 08:11:43 -0700 (PDT) From: Vintage Computer Festival <vcf(a)siconic.com> To: Classic Computers Mailing List <cctalk(a)classiccmp.org>, <cctech(a)classiccmp.org> Subject: VCF Europa Live Reply-To: cctech(a)classiccmp.org I fixed the VCF Europa Live pages from the vintage.org server. To see live pictures from VCF Europa 4.0, go here: http://www.vintage.org/2003/europa/ ...and click on "VCF Life". Look for the guy in the Blue Shirt and that will be Hans (Hansi Smurf). -- Sellam Ismail Vintage Computer Festival ---------------------------------------------------------------------------- -- International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com * --__--__-- Message: 44 Date: Sat, 03 May 2003 15:16:30 To: cctalk(a)classiccmp.org From: Joe <rigdonj(a)cfl.rr.com> Subject: Re: HP's Amigo Protocol, HFS Reply-To: cctech(a)classiccmp.org At 05:53 PM 5/3/03 +0000, you wrote: >Hi Joe, > >The drive is a 9134XV - It's definitely an Amigo drive then. serial number begins with 23 so I guess that it >would be from around 1983. Correct. If I look at the drive with an HP 9000 332 it >sees an HFS partition - with basic 6.0 binaries :). My initial thought was the Amigo wouldn't suppport HFS but after some thought I don't see any reason that it wouldn't. > >When I ask the drive to identify itself it returns a pair of bytes that I >don't recognise (1 and 15 from memory but I could be wrong). This pair of >bytes is not the same as the pair that would be returned by a CS80 drive. I don't know much about the internals of the drives so I don't know what those might mean. I looked at the docs that I have on the 9133XV and I don't see anything with those numbers. Check them and let me know if that's the right numbers. If it's not, tell me the correct numbers and I'll see if they match anything in the specs. > >I managed to check the reader software with a pair of 9133 drives, a 9134 >drive (which fails) That's odd. Is the drive bad? Most systems identify a 9134 as a 9133 with no floppy drive. What kind of HP system are you checking these on and what BootROM does it have? Does the HP system show the 9134? What letter model is the 9134? and a 7907 drive (this identifies itself correctly but >appears to have been wiped of data at some time). > >I have some other software recorded on 7906 removable cartridges - does >anyone know if an HPIB version of this drive was made? - I think that the >model number may be 7906H but I have no further information. Does anyone >have a 7906H tht they don't need? I'm not sure of the model numbers but it appears that HP made both HP-IB and MAC versions of the 7906. I believe that they used an adapter (pn 12745C/D) to convert from MAC to HP-IB interface. The two models that I have listed in my HP 9000 Configurator manual are 7906M and 7906MR. The docs also list 7906C/D and I THINK those are M/MR models with Option 102 installed. No idea what option 102 is. Reading further I found, "There is no HP 9000 interface for the 13037 controller without an HP-IB adapter. The 7906H/HR ICD disks sare known not to work. The usability of the 7906S(slave) 7906A/B and 7905A disk is not known." Italics are HPs. I hope that confuses you as much as it did me! BTW the 13037 is some kind of MAC interface. I had one but gave it to Eric. BTW HP says that these drives are not supported under BASIC, HP-UX or Pascal! (at least at that time) It also says that no support is planned for any HP 9000 system. Also they state that these drives are obselete and recommend that people use the newer and more economical 7907A drives. I looked under the 7907 description to see if it would read the 7906 media but it doesn't say. However the 7907 tape media was 20.5 Mb vs 9.8Mb so it is different. The 7908 drive is described as 16.6 Mb fixed disk and a "1/4 inch "88140" shared controller tape drive". Most (all?) of the newer drives that incorporate tape drives are also described as 88180 tape drives so the drive and media used in the earlier 7906 and 7907 are different from the later stuff. Joe --__--__-- Message: 45 Subject: Re: Northgate OmniKey Ultra From: David Holland <dholland(a)woh.rr.com> To: Classic Computer Talk <cctalk(a)classiccmp.org> Date: 03 May 2003 15:48:02 -0400 Reply-To: cctech(a)classiccmp.org On Fri, 2003-05-02 at 21:33, Frank McConnell wrote: > David Holland <dholland(a)woh.rr.com> wrote: > > I've had it for about a week now, and just can't get used to funky > > arrangement of the arrow keys in the middle, and the F keys on the left > > just throws my Unreal Tournament gaming off. > > So we know it's one of the sort with the Omni key instead of an > inverted-T layout. > > If it's an Ultra, it should also have the function keys across the > top. It does. Across the top, and on the left. > > > Anyways, I gather these things were something of a 'gotta have it' > > keyboard at one time, and were bloody expensive. > > Not that bad. In the mid-1990s you could get them for about $70, > which seems expensive for a keyboard, but for those of us who really > wanted the control key to be to the left of A and didn't want to have > to fuss with driver software to make it happen, it was well worth it. > > If you want expensive, go check out the Avant Stellar! That is > reportedly the modern Northgate OmniKey, and it sells for about $150. Saw'm for as much as 198$ a couple of places.. (ouch) > > > I gather it might of came with some extra keycaps when it was new, so > > you could move around control/shift. I do not have those. > > So, some questions to help folks ID what you've got. > > Is the control key to the left of A? No, control-key is in the bottom left hand corner. (I guess its not quite identical to the picture on northgate-keyboard-repair.com - My bad.) The bottom corner keys are laid out something like so: Capslock Shift Control [Grey < & > key] Alt > > Where are the switches? Poking out the back, or hidden under the > "OmniKey" flip-top lid, or not present at all (flip the lid up, see > nothing)? Under the lid are a set of dip switches and what looks to be a orange reset switch. It claims to be Rev 7.03 on the back of the keyboard. > > Not present at all means it is a late-model programmable keyboard. > They had firmware bugs, and the "fix" was "remove the EEPROM that > holds the key remappings". > > > Anyone want it? (I think this is at least on-topic) > > Somebody better! I've got a couple of follow up's already. (Hopefully they're paying attention when I say: I'll find out what shipping/postage is to their respective zip code(s) on Monday, once I can figure out what kinda box I can find) David > > -Frank McConnell --__--__-- Message: 46 Date: Sat, 03 May 2003 13:09:08 -0700 From: Marvin Johnston <marvin(a)rain.org> To: ClassicCmp <cctalk(a)classiccmp.org> Subject: Soroc IQ120 Chip Problem Reply-To: cctech(a)classiccmp.org I finally started digging in to find out what was wrong with a couple Soroc IQ120s. The first one was easy; just a memory chip (2102) that went bad. The second one is a bit tougher. I *think* I have the problem narrowed down to a Signetics 82S201 PLA, and therein lies the problem. Is there a replacement chip available, and is the coding of the chip available? If the coding is not availble, can I just go through a counter on the input and record the output states to come up with the chip programming? Needless to say, I am not real familiar with these devices :). There are two of these devices in parallel, and when I pull out the supected bad one (one makes no difference, pulling the other one starts the screen display again), the screen starts to work again. My suspicion is that the two are in parallel to increase the drive to the other chips. There are probably more problems since I don't hear the beep when the unit is turned on. The keyboard unit has already been checked out on the working Soroc. Any thoughts or comments? --__--__-- Message: 47 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: HP9915 To: cctalk(a)classiccmp.org Date: Sun, 4 May 2003 00:48:32 +0100 (BST) Reply-To: cctech(a)classiccmp.org I've recently had an HP9915 on the bench. This, as many of you are aware, is related to the HP85, but it's in a metal case with no printer, keyboard (although there is a keyboard connector on the back) or monitor (again, there's a composite video output on the back). Some details of the insides : Almost all the HP ICs are the same as those in the HP85 (CPU, CRT controller, RAM controller, Keyboard controller, ROMs, I/O buffer, even the printer controller is there). Much of the rest of the circuitry is similar to that in the HP85 (PSU, etc). There's an extra 8048 microcontroller that handles the power-on reset, self-test and autostart keys, and the front panel LEDs. It connects to the HP CPU via an I/O Translator IC, which is the same as the one used in the HP85 interface modules. Also linked to this microcontroller is a PCB that can contain up to 8 2716 (or 2732 if you rearrange the links) EPROMs. I have no idea (yet) how to format data to put in said EPROMs. The large board in the bottom of the case contains the PSU, and much of the logic circuitry. There are 6 'option ROM' spaces at the back of this board, identical to those in an HP85 ROM drawer. The PSU provides the same voltages, in much the same way, as the HP85 CPU. The output of the transformer is rectified and fed t oa switching converter (U30, 3524 is the controller IC) to provide +12V, -5V and -12V. This poweres a second switching converter to provide +5V. The +6V is obtained by a linear regulator. There is a crowbar (Q4) which will short out the input to the first PSU if the +12V line rises too high. This will then blow the mains fuse (something to check if the mains fuse blows at switch-on -- maybe Q5, PIC645, the first chopper is shorted). Another PCB plugged into the left edge of the main PCB contains the video RAM, printer chip (used here for the timers, I suspect), buffers/clamp networks for the keyboard and control connectors, a state machine to generate the video sync signals, and the composite video mixer. It has been suggested this is the 'operator interface' mentioned on the options box on the back, but I think not. I think this must be a standard part of the machine, and that the 'operator interface' is the keypad on the front. Talking of the keypad, the top 4 keys are connected as the k1-k4 keys of the HP85 keyboard. The blue key is connected as the shift key. On the back of the machine (actually on the vertically-mounted PCB that I mentioned a couple of paragraphs back) are 2 D connectors. The pinouts seem to be : Keyboard (DB25) 1 : chassis ground 2 : R0X (this is Row 0 output, buffered) 3 : R1X 4 : R2X 5 : R3X 6 : R4X 7 : Logic ground 8 : Logic Ground 9 : R5X 10 : R6X 11 : R7X 12 : R8X 13 : R9X 14 : C0X (Column 0 input, buffered) 15 : C1X 16 : C2X 17 : C3X 18 : C4X 19 : C5X 20 : C6X 21 : C7X 22 : KSX/ (Shift key, connect to logic ground to shift) 23 : KCX/ (Control key, ditto) 24 : KCLX/ (Caps lock key, ditto) 25 : SpkrX (Speaker output, return to logic ground) Control connector, DA15 1 : LED0X (High if top LED on frontpanel is on) 2 : LED1X 3 : LED2X 4 : LED3X 5 : LED4X 6 : LED5X 7 : LED6X 8 : LED7X 9 : RunX/ (RUN LED output) 10 : TestX (selftest LED output) 11 ; PWOX (Power OK output) 12 : Logic ground 13 : KeyStartX/ (ground for autostart key) 14 : KeyStX/ (ground for self test key) 15 : Chassis ground. The keyboard matrix would appear to be the same as that in the HP85 OK< a couple of questions 1) What is the impedance of the speaker in the keyboard (presumably between SpkrX and logic ground? 80 ohms? 2) What is the OD of the tape drive roller? Mine has decayed (what a suprise), and I need to rebuild it. It should be the same as the roller in the HP85, the HP9825, HP9815, etc.... -tony --__--__-- Message: 48 Date: 3 May 2003 23:53:08 -0400 Date: Sat, 3 May 2003 23:53:07 -0400 From: "R. D. Davis" <rdd(a)rddavis.org> To: cctalk(a)classiccmp.org Subject: Re: Another rubber capstan turns to mush Organization: why? Reply-To: cctech(a)classiccmp.org Quothe chuck(a)mail.schillernet.us, from writings of Sat, May 03, 2003 at 08:58:49PM -0400: > Hello All - bah, was just playing with my QIC drive, a WangTek > 5150ES (Using dos tar!) and halfway thru the first listing > tape stops. Turns out the rubber what drives the tape has gotten > very soft. Anybody have a box full of cheap replacements? Oops... it appears that you didn't use the /LCV (lowest capstan viscosity) flag ;-) to prevent the tar command from attempting to turn the rubber capstan into a tarry substance. :-( -- Copyright (C) 2003 R. D. Davis The difference between humans & other animals: All Rights Reserved an unnatural belief that we're above Nature & rdd(a)rddavis.org 410-744-4900 her other creatures, using dogma to justify such http://www.rddavis.org beliefs and to justify much human cruelty. --__--__-- Message: 49 To: cctalk(a)classiccmp.org Subject: Re: HP Amigo command set and HFS disk format From: Frank McConnell <fmc(a)reanimators.org> Date: 03 May 2003 22:10:23 -0700 Reply-To: cctech(a)classiccmp.org Joe <rigdonj(a)cfl.rr.com> wrote: > You asked me about this a few days ago but I've been busy and > forgot to reply. I have a document called "HP Flexible Disk Drive > Command Set" that I'm pretty sure contains a description of the > Amigo command set. It's an appendix to the HP 9114 disk drive > service manual. It's 36 pages long. I can send you a copy or I'll > send it to Al K. or anyone else that wants to scan it and post it on > the web somewhere. I think Joe sent me a copy of this a while back. Anyway, I fished it out of the pile in the living room and fed it to the scanner, with the result being at <http://www.reanimators.org/tmp/hpfddcs.pdf> (1183KB) for the time being. Joe, are you sure this was in the 9114 service manual? Not the 9121 or 9133? I'm just thinking it wouldn't make much sense being in an HP-IL drive manual. -Frank McConnell End of cctech Digest

23 years, 1 month

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Northstar File Transfer from PC

by mranalog＠attbi.com

Marvin wrote: > What is the procedure for transfering files to and from a PC using N* > DOS? For text from the N* to the PC, no problem, just print it out to > the terminal (a DOS machine) and capture it. But what about going the > other way, wanting to get information back to the N*? Any information > appreciated! ===== Transferring from the N* to the PC ====== I developed a process for capturing the entire disk so would have a backup of each my N* disks on the PC. I figured that later I could use the data to create a disk image and then extract the files from that disk image. The procedure is basically reading sections of the disk into a buffer using N* DOS and then listing that buffer to a PC log file using N* monitor. Here is the procedure. The comments below are not part of the procedure and they are not captured in the file. They are just added to clarify the procedure. // Step 1 - While booted into N* DOS, turn logging // on in my terminal program (PROCOMM) // Step 2 - I type in the LI command to list the files // on this disk. This documents which files, and where // they are on the disk +LI DOS 4 12 D 1 2000 BASIC 10 52 D 1 2D00 MAILER 36 30 D 2 LIST 51 500 D 3 CF 301 6 D 1 2D00 SID 304 48 D 1 9000 MONITOR 328 8 D 1 0 CD 332 4 D 1 2D00 // Step 3 - I have determined that I can read 144 blocks // at address 3000H without overwriting DOS or the monitor. // So I read 144 blocks starting from block 0 on the disk. +RD 0 3000 144 // Step 4 - I load and run the N* MONITOR which happens to // be on this disk. If it was not on this disk I would have // temporarly swap disks, load the MONITOR and swapped back. +GO MONITOR // The N* MONITOR starts MONITOR 5.0 // Step 5 - I use the MONITOR command to dump the 144 256 // byte blocks to the terminal. >DA 3000-C000 3000 44 4F 53 20 20 20 20 20 04 00 06 00 81 00 20 20 D O S - 3010 42 41 53 49 43 20 20 20 0A 00 1A 00 81 00 2D 20 B A S I C - - 3020 4D 41 49 4C 45 52 20 20 24 00 0F 00 82 1A 20 20 M A I L E R $ - // ---- BIG SNIP HERE to shorten this email ----- BFE0 20 03 8B 47 45 4E 45 56 41 20 52 4F 43 4B 20 50 - G E N E V A R O C K P BFF0 52 4F 44 2E 20 20 20 20 20 20 20 20 20 20 20 20 R O D . C000 A3 -# // Step 5 - I return to N* DOS with the OS command >OS // Next step - I read the next 144 blocks. This is a // double density disk and each sector is 512 bytes // contains 2 blocks, so the next read is from 'disk // address 72. +RD 72 3000 144 // Back to the MONITOR, repeating the 5 steps until // the entire disk is read. The only command that // changes each time is the RD command. +GO MONITOR >DA 3000-C000 // The other read commands are: +RD 144 3000 144 +RD 216 3000 144 +RD 288 3000 124 // There are 35 tracks, 10 sectors, 2 blocks per // sector, making 700 blocks of 256 bytes each // for a double density disk. So the last read // is just 124 blocks. // Of course the last step is to close the log file. ===== Transferring from the PC to the N* ====== I have done this. But I would just suggest that you write a N* BASIC program that first prompts for a filename and creates the file. Then the program would wait for data from the PC which it would store in a buffer before writting the data to disk. I would suggest sending the data as ascii encoded hex. --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog =========================================

23 years, 1 month

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Trenton Computer Festival

by cb＠mythtech.net

>best price (of whatever >is left): as late as possible. Yeah... when I was at TCF, there was one lady barking "Macs and PCs, two for $5". It was mostly < Pentium 100's or 68k macs, but she had a few early PPCs... if I had a cart I would have grabbed the PPCs at $2.50 each! She did have a PowerMac 5400 that my brother expressed interest in. But then she pointed out to him that it had no logic board or drives... it was just the screen, case, power supply. She dropped the price to $1.00... then told him he could just take it... I think if we waited another minute, she would have offered us money to take it with us (we left it behind... didn't want to carry the heavy MF even if it was free) -chris <http://www.mythtech.net>

23 years, 1 month

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Northstar File Transfer from PC

by dwightk.elvey＠amd.com

Hi Marvin Maybe this isn't exactly what you are looking for but I'm currently working on some software to transfer entire disk images through the serial port of a H89 to a PC. I have another friend checking out my first version, now. I hope to do a similar things for the N*'s as soon as I get one of these machines up and running ( on my list of things to do ). I suppose that once the image is on the PC, one can modify the image to include any new files, one wants and then transfer it back to the N*. It isn't a nice direct method but my main intent is to get some way to send disk images over the net and not specifically individual files. I haven't fiddled with the N* at all and don't know a lot about it. The H89 has a simple monitor that I use to hand enter a simple bootstrap program. With this, I bring in the rest of the code to run the disk drive. Does the N* have a ROM based monitor? I also have a similar setup for my Poly88 but that is setup for getting code into the Poly88 and tape from the PC. I used this to create code to do the various tape copying functions. I can read code from a cassette tape, transfer it through the serial to the PC and later feed it back through the serial to the Poly88 to write back onto tape. I use a similar bootstrapping code to get things started, through the Poly's monitor. Dwight >From: "Marvin Johnston" <marvin(a)rain.org> > >What is the procedure for transfering files to and from a PC using N* >DOS? For text from the N* to the PC, no problem, just print it out to >the terminal (a DOS machine) and capture it. But what about going the >other way, wanting to get information back to the N*? Any information >appreciated! > >------------------------------------------- >ebaY's Security Breach and Coverup >http://www.auctionguild.com/generic110.html

23 years, 1 month

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TRS-80 / System 80

by doug_jackson＠citadel.com.au

Alan, I recieved 2 System-80's, and had this fault in both cases. In the first case, there was a memory expansion that was very poorly wired, removing it, cleaning the sockets, and reinstalling the correct memory helped, and it now works a treat. In the second case, there was a disk controller installed in the bottom of the system. I discovered that if the FDC chip was removed, the system booted. I de-installed this modification, and the system works! (Later, I found out that the random characters was a symptom of the system waiting for a boot floppy [which I didn't have]) There is also a flexible cable between the video and the cpu board that could have faulty contacts. Giving this a clean should help. Hope that this helps. regards Doug Jackson Manager - Managed Services (ACT) Citadel Securix Pty Ltd Level 1, 10 Moore St Canberra ACT 2601 Ph: (612) 6290 9011 Fx: (612) 6262 6152 Mob: 0414 986 878 Web: www.citadel.com.au Melbourne - Sydney - Canberra - Brisbane - Hong Kong - Atlanta Any pricing or time figures contained within this email are indicative only, and have been provided for planning purposes only. Please request a quotation from your sales representative prior to undertaking any work. -----Original Message----- From: Alan Greenstreet [mailto:aeg@paradise.net.nz] Sent: Saturday, May 03, 2003 8:52 PM To: cctalk(a)classiccmp.org Subject: TRS-80 / System 80 Hi All I have just acquired a System 80 MkII (distributed in Australasia by Dick Smith Electronics). On power up I get the LED power light ok but a screen full of random characters, the reset switch does nothing. I've had it apart and there are no loose connections or chips on the two main boards and no sign of any burnt or expired components. Has anyone had similar problems and / or knows what the problem is? Thanks Alan CAUTION - The information in this message may be of a privileged or confidential nature intended only for the use of the addressee or someone authorised to receive the addressee's e-mail. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail is strictly prohibited. If you have received this email in error please notify postmaster(a)citadel.com.au. Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of Citadel Securix. Feel free to visit the Citadel Securix website! Click below. http://www.citadel.com.au

23 years, 1 month

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Interesting aircraft memory and Bendix computer ad on eBay

by jpl15＠panix.com

Some eBay gleanings of possible interest: Computer memory unit CP548/ASA made by Sikorsky... http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2413856214&ca… Bendix G-20 advertising ephemera: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=21092&item=360628066… Big Old Iron fans should maybe check this one out. Cheerz John

23 years, 1 month

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Trenton Computer Festival

by alhartman＠yahoo.com

I also went to TCF on Saturday. I saw lots of Sparc Stations too. Didn't buy one. But, maybe next year. No TRS-80's that I saw (except for a Model 100 with a broken spacebar), One Amiga 500 that I couldn't carry home with all the stuff the seller wanted to sell with it. I did get a ROM 01 Apple ][gs with 2mb RAM, 3.5" FDD, 5.25" FDD, KB, Mouse, Joystick, Cables, PrintShop GS for $7.00 I bought an unknown Newer Upgrade card for $15 and got home to find it to be a G3 250/125. So that was a good deal. I also got two others for $10.00 each that turned out to be PowerComputing 604e 225/45 and a 200/50. So the G3 went in my 8500 (Since it didn't work in my PowerCenter 132) and the 225/45 went in the Power Center. Lots of other odds and ends there. But not too much of a selection. I saw one Vic-20, no Commodore 64's. Though there were some carts for them around. Hardly any video game consoles at all. No Apple II's, other than a few gs'es. No Next Stations. The Flea was a little smaller than last year, but there were definitely bargains to be found. I also got a JEIDA Memory card (16mb) for my ThinkPad 510cs for $5.00. That was a nice find. Also a Tandy JP-250 Printer (Canon BJ-10ex or similar relabled) with an extra cart and two dead batteries I tossed for $3.00. Printer works great if I use an IBM Proprinter Driver or a Canon BJ-130e driver. This is a great little printer that fits in my Laptop bag, and is good for taking on trips or meetings along with my ThinkPad 600e. I also saw a few HP Omnibooks, the old ones with the attached mouse that used a PCMCIA Hard Drive. I thought about buying one. But I decided I didn't want one that badly to take a chance on getting one I couldn't fix easily or cheaply. I didn't get a TRS-80 Model I or III or my holy grail... An LNW-80. But, I'll keep looking... But definitely the show is moving away from classic computers and becoming more and more PC/Mac. I think it's just because the price of the booths in the flea is just too high for the person looking to get rid of stuff in their garage. I think it was on the order of $100 with one ticket for admission. I think it used to be $20 - $35 years ago. And they'd have HUNDREDS of sellers in the flea. It looked like less than 100 Vendors this time around. I didn't count. It was worth going to, and I'll go back next year... Regards, Al Hartman The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

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More DEC Stuff Coming

by mtapley＠swri.edu

All, Got this from the guy in Houston who supplied the VAX VLC machines. Contact him (best) or me if you are interested. >Date: Mon, 21 Apr 2003 23:33:16 -0500 (CDT) >From: sandmann(a)clio.rice.edu (Charles Sandmann) >Subject: More DEC Stuff Coming ... > >I was just notified today by the ChemE department head at Rice that it >is time to clean out one of the labs. It has mostly PDP stuff, some >VAX stuff, documentation, some media. KZ's going to make a rough list >so we can estimate the volume. The VAX stuff has been used in the last >year, but most of the PDP stuff has been off for 8 years or more, so >may need some TLC when being checked out the first time (if you don't >know about power supply caps, you probably shouldn't ask :-) I've made >some promises for some of this stuff already - but if there is something >you are dying for, it might be a good time to remind me. Between the >Rice stash and the AspenTech stash, there should be lots of machines >for everyone. > >If Intel IRMX (?) means anything to anyone, bug me. I think thats the >system name - and they are rare (but not DEC stuff ...) > >I think we will keep the extra RS6000/AIX IBM systems for spare parts >for clio - but you never know... > >I know there are some VT103s (VT100 systems with built in dual TU58s >and QBUS backplanes) - lots of QBUS cards, an 11/23+ rack mount system, >BA123 based MicroVAX II with ESDI and RQDX3/RD54 disks. I think the >11/23+ has an RQDX1 with RD51 drive (don't cringe!), dual RX02s >(I have a requirement to be able to read some media on these first!) > >There is a requirement to take lots of pictures for our scrapbook :-)

23 years, 1 month

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Amiga video

by teoz＠neo.rr.com

Anybody have a cheap 390682-01 amiga to vga adapter or know where I can get one? I am trying to use a NEC 3DS monitor on my Amiga A1200 to free up my 1084 monitor for my A500 and C128. I tried using a custom cable from IEC but it doesnt sync all the time (its just a wire thru while the silver amiga part has a buffer chip inside).

23 years, 1 month

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Another rubber capstan turns to mush

by chuck＠mail.schillernet.us

Hello All - bah, was just playing with my QIC drive, a WangTek 5150ES (Using dos tar!) and halfway thru the first listing tape stops. Turns out the rubber what drives the tape has gotten very soft. Anybody have a box full of cheap replacements? (pic here: http://mail.schillernet.us/wangtek/ ). I'd like to keep it working, but paying for depot service ( like http://www.eds-sales.com/EDS-QICPG.htm ) on a 150Mb drive is, uh, a questionable investment. --Chuck

23 years, 1 month

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HP 9000 300 data acquisition card - Infotek AD200

by peterbrown10＠hotmail.com

Hi Joe, I had a good look at the card last night - I'm 9(.9% certain that it is an AD card. The rear panel connector is marked MITSUMI CINCH - M57. It has an onbaord analog to digital converted type AD578ZLN - looks as though it is 12 bit 333 kHz sampling rate from the data sheet. There are two three way jumpers and a single 8-way DIP rocker switch assembly. I've no idea how to set it up.... Cheers Peter _________________________________________________________________ Worried what your kids see online? Protect them better with MSN 8 http://join.msn.com/?page=features/parental&pgmarket=en-gb&XAPID=186&DI=1059

23 years, 1 month

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Brainiac goes for over $300

by jrkeys＠concentric.net

Check it out at: http://cgi.ebay.com/ws/eBayISAPI.dll?viewitem&item=2725013336

23 years, 1 month

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ST Falcon Goes high on eBay

by jrkeys＠concentric.net

This ST Falcon goes for over $300. http://cgi.ebay.com/ws/eBayISAPI.dll?viewitem&item=2725518828

23 years, 1 month

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HP site

by jwest＠classiccmp.org

Had anyone run into this site before? I just came across it, and there's lots of VERY kewl HP1000 stuff listed there on a CD they put out. I cant seem to figure out from the site how you get the CD, but they say it's free (at least the components). Some of the entries in the library look very interesting! Looks like they have C compilers, 8080 assemblers, etc. http://www.interex.org/tech/csl/RTE/ for an overview... click on the "CSL" link Jay West

23 years, 1 month

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My new SparcStation

by cb＠mythtech.net

I just came from the Trenton Computer Fest... picked myself up a SparcStation 4. I probably over paid at $20 for the CPU with Solaris preloaded, a keyboard and cable, and a mouse and pad.... but since I already owned a monitor, it seemed like a fair price to have another toy to play with (really the fact that I have a 20 inch monitor for one already was the only reason I bought it. I see that monitor just about every day at work and I've been itching to get a computer to use with it, just to see what a SparcStation is like). So now my question is... anyone have any link recommendations of where to go to learn about these things? I'm about to do some googling, but I'm sure some of you already know good sites to visit. Other than that, I didn't buy anything of great interest. Just a few odds and ends of parts, like some extra mac drive sleds (25 cents each). I would have bought more stuff if I had brought a cart or something with me, but I just didn't feel like carrying everything. Next year my brother and I will be better prepared. We plan to bring a folding luggage cart each... THEN we will buy more toys. -chris <http://www.mythtech.net>

23 years, 1 month

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HP Amigo command set and HFS disk format

by fmc＠reanimators.org

"Peter Brown" <peterbrown10(a)hotmail.com> wrote: > It looks as though the general form of the commands is very similar to CS80 > format but the commands themselves are different - I wonder why HP did > this? Amigo was the project name for the computer sold as the HP 300 (not 9000 Series 300). I believe it was the first cut at designing a general protocol for communicating with storage (and maybe other) devices over HP-IB, and I think the name got stuck on the protocol as well. CS/80 came later, and I think it was informed somewhat by lessons learned from the HP 300 experience. And I think SS/80 was a sort of subset of CS/80 for lower-end storage devices. There was another protocol, CIPER, that was used for communicating with printers over HP-IB. At least that's what I remember from working on HP3000s in the 1980s. -Frank McConnell

23 years, 1 month

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HP64000

by david_comley＠yahoo.com

I brought home an HP64000 development system today. It has the emulation pods for the 68000 and 8080A processors, an HP-IB cable plus some other odds and ends in the backpack. A peak at the back indicated that it is crammed full of cards and 128K memory. Unfortunately what it doesn't have is either software or manuals, so this is a request to the group for help in that respect. I believe that there was a ton of software originally available for this unit to support various options and development tools, and I think what I am looking for is at least the operating system on floppy so that I can boot it up. Any background material on the 64000 would also be appreciated. I was impressed by the fact that it weighs almost as much as a model 33 Teletype yet it still has a handy reinforced carrying handle on the side for those portable sessions... Regards, Dave The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

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AS/400 Operations Navigator

by marvin＠rain.org

I have the CD titled "AS/400 Operations Navigator" using Client Access for Windows 95/NT and the Manual "Client Access for Windows 95/NT - Setup V3R2M0". Since I have absolutely no use for it, $5.00 including US shipping to whoever wants it. ------------------------------------------- ebaY's Security Breach and Coverup http://www.auctionguild.com/generic110.html

23 years, 1 month

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HP Amigo command set and HFS disk format

by fmc＠reanimators.org

Joe <rigdonj(a)cfl.rr.com> wrote: > You asked me about this a few days ago but I've been busy and > forgot to reply. I have a document called "HP Flexible Disk Drive > Command Set" that I'm pretty sure contains a description of the > Amigo command set. It's an appendix to the HP 9114 disk drive > service manual. It's 36 pages long. I can send you a copy or I'll > send it to Al K. or anyone else that wants to scan it and post it on > the web somewhere. I think Joe sent me a copy of this a while back. Anyway, I fished it out of the pile in the living room and fed it to the scanner, with the result being at <http://www.reanimators.org/tmp/hpfddcs.pdf> (1183KB) for the time being. Joe, are you sure this was in the 9114 service manual? Not the 9121 or 9133? I'm just thinking it wouldn't make much sense being in an HP-IL drive manual. -Frank McConnell

23 years, 1 month

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Northstar File Transfer from PC

by marvin＠rain.org

What is the procedure for transfering files to and from a PC using N* DOS? For text from the N* to the PC, no problem, just print it out to the terminal (a DOS machine) and capture it. But what about going the other way, wanting to get information back to the N*? Any information appreciated! ------------------------------------------- ebaY's Security Breach and Coverup http://www.auctionguild.com/generic110.html

23 years, 1 month

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AMIGO command set and HFS disk format

by peterbrown10＠hotmail.com

Hi Joe, > It's definitely an Amigo drive then. I've found some other docs that confirm this. >My initial thought was the Amigo wouldn't suppport HFS but after >some >thought >I don't see any reason that it wouldn't. When I catalog the drive with a device that only supports CS80 (my HP 3562A Spectrum analyser) I see only one file (called SYSTEM_SA). When I attach the drive to an HP 9000 332 CPU, it finds the SYSTEM_SA file and then displays something like 'Secondary loader v 56.6' - I assume that this is the part that provides support for HFS. Once the secondary loader has done its stuff the 9000 332 will catalog the drive as usual and displays HFS as the filesystem. <snip> >bytes is not the same as the pair that would be returned by a CS80 >drive. Ignore my comments on this - my mistake. The numbers come from the 'Identify' CS80 command that is used at power on by the system controller to identify devices attached to the HPIB bus. The values 1 and 15 are consistent with the 9134x <snip> >That's odd. Is the drive bad? Most systems identify a 9134 as a 9133 >with >no floppy drive. I should have been more specific - the drive that fails is the 9134x - it fails because it is an amigo drive not a CS80. <snip> Thanks for the info Joe. I need to explain this one more fully! The HP 7907 is a 20.5MB (fixed) + 20.5MB (removable) HPIB controlled disk drive. The removable cartridge is a 9 inch by 9 inch by 1 inch box containing a single 8 inch platter. The drive wieghs about 60 lbs - it comes in the same width box as an HP 9000 300. It looks as though the removable portion of the drive is primarily for backup as separate panel controls are provided for Fixed->Removable and Removable-> fixed. I have one of these - I've just been using it for testing the CS80 / LIF reader software that I've been writing. The HP 7906 is a 5 MB (fixed) + (5 MB) (removable) (I think) MAC controlled HDD. I have one attached to my 5451C Fourier Analyser. It uses a 13037 interface card in the HP 1000 computer plus an external controller marked 13037A. I think that the controller can control up to 8 drives at once. The removable cartridge is around 17 inches in diameter. The drive weighs a lot - it takes two people to lift. My problem is that I have software on 7906 removable cartridges that I need to back-up. If I can find an HPIB controlled version of the 7906 then I may be able to support it with the HPIB reader software. Do you have any more information about the 12745C/D MAC to HPIB converter? - this sounds as though it will do the job! I've down-loaded the command set documentation that Frank has scanned etc. It looks as though it may be what I'm looking for re. amigo command set. Interestingly the docs themselves do not seem to use the word amigo anywhere?? As usual Joe, many thanks for taking the time to look this stuff up! - hopefully we should all end up with an application that will let us back-up and share our age-ing software. Do you have any info on how HFS works? Cheers Peter Brown _________________________________________________________________ It's fast, it's easy and it's free. Get MSN Messenger today! http://www.msn.co.uk/messenger

23 years, 1 month

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HP 9000 300 data acquisition card - Infotek AD200

by peterbrown10＠hotmail.com

Hi All, I've just acquired an HP 9000 series R332. In the back of it amongst the usual HPIB / GPIB cards there is a card marked Infotek Systems AD200 Converter, \ Assy 900-13992 rev E - I assume that this is some sort of data acquisition card. Does anyone have details of the card specification / the software required to drive it? Cheers Peter Brown _________________________________________________________________ It's fast, it's easy and it's free. Get MSN Messenger today! http://www.msn.co.uk/messenger

23 years, 1 month

2
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HP Amigo command set and HFS disk format

by peterbrown10＠hotmail.com

Hi Frank, Thanks for scanning and posting this document. I've had a brief read through and it may be what I need - I'll have a deeper look this evening. It looks as though the general form of the commands is very similar to CS80 format but the commands themselves are different - I wonder why HP did this? Cheers Peter Brown _________________________________________________________________ Worried what your kids see online? Protect them better with MSN 8 http://join.msn.com/?page=features/parental&pgmarket=en-gb&XAPID=186&DI=1059

23 years, 1 month

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Fw: Viewfax 258

by bob.c＠dial.pipex.com

----- Original Message ----- From: Bob Clark To: mel(a)pullen.com ; danny(a)spesh.com ; Glyn Philips ; Lindsay Reid Sent: Saturday, May 03, 2003 3:35 PM Subject: Viewfax 258 My god what a week this has been for finding old friends. First Bill Olivier, then Sue wakes me up this morning (or afternoon possibly) - there's a Lindsay Reid on the phone, would I like to talk to him? What, talk to Lindsay for the first time in 15 years, yawn oh ok then if I must. This three days after we had complained that Lindsay had gone completely unfindable on the web, and was obviously dead. What we didn't do of course was try www.viewfax.com. Lindsay was ringing to ask if anyone remembers or better still knows a man >from the olden pirate radio days called Richard Fox-Davies, aka Dick. This name rings strong bells with me, but I can't remember why. Anyone? (My extensive researches this afternoon reveal that his books for kids are still popular in Western Australia, assuming this is the same guy: http://henrietta.liswa.wa.gov.au:90/search/aFox-Davies/afox+davies/1,3,25,B… xact&FF=afox+davies+dick&1,2 ) This may be a justified cause for an NTK (http://www.ntk.net/) appeal Dan, because... ... the good news is that Lindsay still has Viewfax 258 backed up on 5.25" floppy disks. There's quite a few disks, and we'd have to sort through them somewhat to find the Gnomey bits. But Lindsay is happy to loan his disks to Glyn the man with the archaic hardware, all he needs is his address. Then he'd like his disks back. I figure we could probably blow the lot onto the first quarter inch of a CD for him. So our dream may come true and we'll have both the Gnome on Prestel and the Gnome at Home splurged all over our shiny new web site. Meanwhile, please admire my wonderfully wonky first-stab character set one more time... Bob PS Late-breaking news, Peter Turnbull rediscovered too: http://www.classiccmp.org/pipermail/cctalk/2003-January/014196.html [demime 1.01a removed an attachment of type application/octet-stream which had a name of viewfax7.jpg]

23 years, 1 month

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Heathkit EC-1

by dwightk.elvey＠amd.com

>From: Joe <rigdonj(a)cfl.rr.com> > >>>From: "Ethan Dicks" <erd_6502(a)yahoo.com> >>> >>>--- "Dwight K. Elvey" <dwightk.elvey(a)amd.com> wrote: >>>> Hi >>>> An interesting side note. The power steering of your >>>> auto is an example of an analog fluid amplifier. >>>> Dwight >>> >>>I don't think _my_ auto (1968 Beetle) is an example of that. :-) > > Do you mean that it doesn't have hydraulic brakes? :-) I expect that the vacuum advance on the distributor would also qualify. > > Joe > Hi Hydraulic brakes don't amplify unless they use a booster. It is true that most drum brakes amplify when stopping while moving forward. Many cars of this time frame may not have a vacuum advance. I know my Fiat Spider doesn't( I think the VW's did though ). Still, most any auto is just full of analog computing elements. Dwight

23 years, 1 month

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ClassicCmp Auction Site?

by jss＠subatomix.com

Forgive me if this has already been discussed today; I don't have time at the moment to scan the entire thread. With this latest round of discussion about eBay, the thought crossed my mind that maybe we need our own WWW auction site. It would only contain classic computers and related items, and it could be designed in such a way that would please a large number of list members and colleagues, including those who avoid eBay. Could I hear some opinions on this, please? My WWW-related programming skills -- not my traditional forte -- have seriously improved since the last time we discussed ideas for the CC site. In fact, I've been doing it for money at my workplace for the last few weeks. For several months now, I've been increasingly interested in implementing some of the ideas I've had for ClassicCmp improvements, and if people think it is a good idea, an auction subsite would make for a very interesting project. Don't worry; there are no weblogs up my sleeve. :-) -- Jeffrey Sharp

23 years, 1 month

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FS/FT Items

by pat＠purdueriots.com

On Wed, 30 Apr 2003 philip(a)awale.qc.ca wrote: > > On 29-Apr-2003 Patrick Finnegan wrote: > > I'm looking for either QBUS parts, or $5 + shipping for each of the > > following.. Trying to clean out my room before I have to move in a few > > months. > > > > - SparcStation 20, 32MB ram, 1x50MHz proc, floppy, 2GB HDD. > > I have 2 of these to get rid of. > > I'd be interested in one of these. Or have they be claimed already. > Could you give me an estimate on shipping to Québec (J0B 2C0) ? All of the sparcstation 20's have been taken. Pat -- Purdue University ITAP/RCS Information Technology at Purdue Research Computing and Storage http://www-rcd.cc.purdue.edu

23 years, 1 month

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Inquiry about Classic Computers Collectors List

by ReCarDeaux＠aol.com

To Whom It May Concern:

23 years, 1 month

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dnd

by carlin＠nauticom.net

Hello: I have been searching for the source code to DND for quite a long time now, and I ran across this post you made at some time in the past. Would you happen to have worked out the details in order to distribute the source code? I used to play this game in college many years ago, and it would mean quite a lot to me to get it up and running again. Thanks for any help that you can offer, Ken Carlin >From what I've read, banned inside of DEC is the best description :^) It >uses creatures and spells straight from D&D. Yep, I know exactly which one you speak of... I have the sources for the pascal version of the game, along with the data files, preserved for almost 20 years. I have ported the game to C using curses (actually, it was mostly a brute-force translation from the pascal) and have it running at least as well as the original pascal version (which was incomplete) at home on my Alpha PWS running Linux. I've been in contact with one of the people who was responsible for writing the pascal version, and am trying to get ahold of all the others so that I can figure out how to write up a 'copyright' page with proper attributions. >Basically all I know is what's written up at the following webpage: >http://www.io.com/~adastra/rancourt/dnd/ >It was written by Daniel Lawrence, started on the PDP-10, was ported to >RSTS/E part way through, and after that ported to VAX/VMS. I played it on RSTS/E when I was working at Parker St (DEC) in Maynard back in 1977. Actually, the pascal version was also built on RSTS using, I believe, the OMSI compiler, and ran on RT-11. Dan has apparently given permission for any and all versions of the game to exist with his blessing, but since the source I have had a copyright which is problematic (since it doesn't mention him), I have to try to do the right thing. >I grabbed the source off of the web page above, and it almost works. In >fact it might work, IF, I could figure out exactly how to build it. BTW, >the "TOPS-20" executable, looks to be a VMS V1.0 executable. If/when I can resolve the issues of attribution, I'd love to make it available... should I even bother with sourceforge? :-) Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | email: gentry at zk3.dec.com (work) | | Unix Support Engineering Group | mbg at world.std.com (home) | | Hewlett Packard | (s/ at /@/) | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 (DEC '77-'98) | required." - mbg KB1FCA |

23 years, 1 month

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286SLT powerconfig

by metallicaman1234＠earthlink.net

what is the pin input power configuration of the 286SLT laptop and how many volts/amps is it. Also what about the battery pin config and its voltages?

23 years, 1 month

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Where can one find 2.5 inch floppy disks, and other odd

by lgwalker＠mts.net

A reply to an old thread, but since I'm no longer subscribed to the list, but occasionally monitoring it, understandable. I have an old Roland PR100 sequencer. It and some other audio equipment (Akai 612 ?) as well as a Smith- Corona word processor used a 2.8 Quick Disk (flippy). I found a company that still sells the disks: http://www.esticortland.com Part #061838 but not cheap at $12.25 Lawrence ------- End of forwarded message ------- lgwalker@ mts.net

23 years, 1 month

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Significance of an Apple II w/ raised power light?

by nickmiller＠charter.net

Hello, I have an original Apple II with a keyboard power on light that is raised above the case and sits in green piece of plastic. I've seen this style of Apple II in old advertisements but have not been able to find out the significance of this variant if there is one. I'm finally getting around to working on my website again and would like to address this feature, any comments would be appreciated. Thanks, Nick

23 years, 1 month

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Vintage Computer Message Board

by classiccmp＠vintage-computer.com

Hello, I would like to announce a new message board that I have created in support of our community. During the past couple of years I?ve been participating as a member of this mailing list as well as several related ones. I have made a few observations that I felt needed addressing including: - the need for a better way to advertise items or help (wanted or offered) - the ability to support off topic conversations along with on- topic ones without burdening those not interested in one or the other - the ability to easily search archives for topics of interest - the ability to keep ?threads? of discussion together - the ability to categorize these threads for easier research With the above in mind I decided to experiment with a web based bulletin board (a long way from my days with RBBS and WWIV). Over the past month or so I have changed my web hosting service for www.vintage- computer.com in order to work with a hosting company that could support the new forum I was considering. Over this past weekend I finished the initial phases of moving my site and configuring the boards. The result is now available for use at www.vintage-computer.com/vcforum. A link is also available from my www.vintage-computer.com front page. Since my web hosting has been recently moved the new DNS information may not have completely propagated yet. If you get an error trying to access the above address or if the message board link from my home page refers you to an ezBoard page, please try back a little later. There are two things that I would like to stress about the new forums. First, I don?t envision them as a threat to this mailing list or the community that supports it. I see it as another tool in our toolbox (or toy in our toy chest) to enhance our enjoyment of our hobby. Second, although I set up these forums I consider them to be ?ours? in as broad a sense as that is possible. I am not only willing, but anxious to have others participate in these forums as administrators, moderators and contributors. Volunteers are welcome and operators are standing by! Hopefully if you are reading this you will see your way clear to popping over for a visit and supporting this effort with whatever you are willing to offer, be that participation, suggestions or criticism. Again, this is our community and I will do my best to make these forums reflect that. Thank you and best regards, Erik S. Klein www.vintage-computer.com

23 years, 1 month

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77/68 computer (was Seeking good home...)

by Paul.HILLS＠landisgyr.com

Andy, I guess the Electronics and Computing Monthly magazine and Stirling Microsystems must have based the design on the ACC one. The ECM design was on 8" square boards too, single sided tracks (you had to run loads of wire straps!). I still have all the documentation for it, paper-based at the moment. There was a choice between a 40x24 monochrome display board implemented entirely in 4000-series CMOS (which I built), or a newer colour board with 64K RAM and a Thomson EF9365 Graphic Display Processor. I didn't build that since the cost of 64k RAM in 1982 was prohibitive! That processor could draw at 1 million pixels per second - impressive for 1982. Some of the documentation is published by Newbear (Newbury Electronics), and some by Stirling. One day I'll get around to scanning all the docs in for general availibility. paul -----Original Message----- From: Andy Holt [mailto:andyh@andyh-rayleigh.freeserve.co.uk] Sent: 19 April 2003 20:40 To: cctalk(a)classiccmp.org Subject: RE: Seeking good home(s) for old hardware [UK] > Getting on 20 years ago I built a 6809 based computer from a > series running in the UK magazine "Electronics & Computing > Monthly", called the 77/68 system. This was based on the SWTP > stuff but was marketed through a company called Stirling > Microsystems in Baker Street, London. Does anyone else here > remember that system? ... As I remember it, the 77/68 was published in the ACC newsletter (not in E&CM) - the original was a rather neat design by Mike Lord on 8" square PCBs. I built a seriously extended one of these (which eventually "fissioned" into two complete systems - connected by a homebrew network that was a sort of very cheap slow ethernet). Some boards were from the original design - others I designed and implemented myself ... most notably including a 6809 board (the original was a 6800) with the only technical data being a pin-out and some other vague descriptions in a Byte article. It was a couple of years of successful use before I discovered that I was feeding the clock in through the "wrong" pin! Amongst the peripherals that this system acquired was a large Calcomp plotter surplus from the University mainframe. Unfortunately most of the hardware and documents have now been recycled or worse. Andy

23 years, 1 month

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HP9915

by ard＠p850ug1.demon.co.uk

I've recently had an HP9915 on the bench. This, as many of you are aware, is related to the HP85, but it's in a metal case with no printer, keyboard (although there is a keyboard connector on the back) or monitor (again, there's a composite video output on the back). Some details of the insides : Almost all the HP ICs are the same as those in the HP85 (CPU, CRT controller, RAM controller, Keyboard controller, ROMs, I/O buffer, even the printer controller is there). Much of the rest of the circuitry is similar to that in the HP85 (PSU, etc). There's an extra 8048 microcontroller that handles the power-on reset, self-test and autostart keys, and the front panel LEDs. It connects to the HP CPU via an I/O Translator IC, which is the same as the one used in the HP85 interface modules. Also linked to this microcontroller is a PCB that can contain up to 8 2716 (or 2732 if you rearrange the links) EPROMs. I have no idea (yet) how to format data to put in said EPROMs. The large board in the bottom of the case contains the PSU, and much of the logic circuitry. There are 6 'option ROM' spaces at the back of this board, identical to those in an HP85 ROM drawer. The PSU provides the same voltages, in much the same way, as the HP85 CPU. The output of the transformer is rectified and fed t oa switching converter (U30, 3524 is the controller IC) to provide +12V, -5V and -12V. This poweres a second switching converter to provide +5V. The +6V is obtained by a linear regulator. There is a crowbar (Q4) which will short out the input to the first PSU if the +12V line rises too high. This will then blow the mains fuse (something to check if the mains fuse blows at switch-on -- maybe Q5, PIC645, the first chopper is shorted). Another PCB plugged into the left edge of the main PCB contains the video RAM, printer chip (used here for the timers, I suspect), buffers/clamp networks for the keyboard and control connectors, a state machine to generate the video sync signals, and the composite video mixer. It has been suggested this is the 'operator interface' mentioned on the options box on the back, but I think not. I think this must be a standard part of the machine, and that the 'operator interface' is the keypad on the front. Talking of the keypad, the top 4 keys are connected as the k1-k4 keys of the HP85 keyboard. The blue key is connected as the shift key. On the back of the machine (actually on the vertically-mounted PCB that I mentioned a couple of paragraphs back) are 2 D connectors. The pinouts seem to be : Keyboard (DB25) 1 : chassis ground 2 : R0X (this is Row 0 output, buffered) 3 : R1X 4 : R2X 5 : R3X 6 : R4X 7 : Logic ground 8 : Logic Ground 9 : R5X 10 : R6X 11 : R7X 12 : R8X 13 : R9X 14 : C0X (Column 0 input, buffered) 15 : C1X 16 : C2X 17 : C3X 18 : C4X 19 : C5X 20 : C6X 21 : C7X 22 : KSX/ (Shift key, connect to logic ground to shift) 23 : KCX/ (Control key, ditto) 24 : KCLX/ (Caps lock key, ditto) 25 : SpkrX (Speaker output, return to logic ground) Control connector, DA15 1 : LED0X (High if top LED on frontpanel is on) 2 : LED1X 3 : LED2X 4 : LED3X 5 : LED4X 6 : LED5X 7 : LED6X 8 : LED7X 9 : RunX/ (RUN LED output) 10 : TestX (selftest LED output) 11 ; PWOX (Power OK output) 12 : Logic ground 13 : KeyStartX/ (ground for autostart key) 14 : KeyStX/ (ground for self test key) 15 : Chassis ground. The keyboard matrix would appear to be the same as that in the HP85 OK< a couple of questions 1) What is the impedance of the speaker in the keyboard (presumably between SpkrX and logic ground? 80 ohms? 2) What is the OD of the tape drive roller? Mine has decayed (what a suprise), and I need to rebuild it. It should be the same as the roller in the HP85, the HP9825, HP9815, etc.... -tony

23 years, 1 month

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Soroc IQ120 Chip Problem

by marvin＠rain.org

I finally started digging in to find out what was wrong with a couple Soroc IQ120s. The first one was easy; just a memory chip (2102) that went bad. The second one is a bit tougher. I *think* I have the problem narrowed down to a Signetics 82S201 PLA, and therein lies the problem. Is there a replacement chip available, and is the coding of the chip available? If the coding is not availble, can I just go through a counter on the input and record the output states to come up with the chip programming? Needless to say, I am not real familiar with these devices :). There are two of these devices in parallel, and when I pull out the supected bad one (one makes no difference, pulling the other one starts the screen display again), the screen starts to work again. My suspicion is that the two are in parallel to increase the drive to the other chips. There are probably more problems since I don't hear the beep when the unit is turned on. The keyboard unit has already been checked out on the working Soroc. Any thoughts or comments?

23 years, 1 month

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Northgate OmniKey Ultra

by fmc＠reanimators.org

David Holland <dholland(a)woh.rr.com> wrote: > I've had it for about a week now, and just can't get used to funky > arrangement of the arrow keys in the middle, and the F keys on the left > just throws my Unreal Tournament gaming off. So we know it's one of the sort with the Omni key instead of an inverted-T layout. If it's an Ultra, it should also have the function keys across the top. > Anyways, I gather these things were something of a 'gotta have it' > keyboard at one time, and were bloody expensive. Not that bad. In the mid-1990s you could get them for about $70, which seems expensive for a keyboard, but for those of us who really wanted the control key to be to the left of A and didn't want to have to fuss with driver software to make it happen, it was well worth it. If you want expensive, go check out the Avant Stellar! That is reportedly the modern Northgate OmniKey, and it sells for about $150. > I gather it might of came with some extra keycaps when it was new, so > you could move around control/shift. I do not have those. So, some questions to help folks ID what you've got. Is the control key to the left of A? Where are the switches? Poking out the back, or hidden under the "OmniKey" flip-top lid, or not present at all (flip the lid up, see nothing)? Not present at all means it is a late-model programmable keyboard. They had firmware bugs, and the "fix" was "remove the EEPROM that holds the key remappings". > Anyone want it? (I think this is at least on-topic) Somebody better! -Frank McConnell

23 years, 1 month

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HP's Amigo Protocol, HFS

by peterbrown10＠hotmail.com

Hi Joe, The drive is a 9134XV - serial number begins with 23 so I guess that it would be from around 1983. If I look at the drive with an HP 9000 332 it sees an HFS partition - with basic 6.0 binaries :). When I ask the drive to identify itself it returns a pair of bytes that I don't recognise (1 and 15 from memory but I could be wrong). This pair of bytes is not the same as the pair that would be returned by a CS80 drive. I managed to check the reader software with a pair of 9133 drives, a 9134 drive (which fails) and a 7907 drive (this identifies itself correctly but appears to have been wiped of data at some time). I have some other software recorded on 7906 removable cartridges - does anyone know if an HPIB version of this drive was made? - I think that the model number may be 7906H but I have no further information. Does anyone have a 7906H tht they don't need? Cheers Peter Brown _________________________________________________________________ On the move? Get Hotmail on your mobile phone http://www.msn.co.uk/mobile

23 years, 1 month

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VCF Europa Live

by vcf＠siconic.com

I fixed the VCF Europa Live pages from the vintage.org server. To see live pictures from VCF Europa 4.0, go here: http://www.vintage.org/2003/europa/ ...and click on "VCF Life". Look for the guy in the Blue Shirt and that will be Hans (Hansi Smurf). -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 1 month

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HP's Amigo Protocall & HP IPC

by rigdonj＠cfl.rr.com

Yesterday I was cleaning out and putting some excess HP manuals on E-bay. One of the books that I found, HP-UX Concepts and Tutorials - Device I/O and User Interfacing, looked interesting but was still sealed so I listed it without opening it to see exactly what it covered. (I'm not real big on HP-UX). Today I found another copy of the same manual. It was alreadu opened so I've been reading through it. First, it DOES cover the HP IPC (Intergral Personal Computer) along with the HP 9000 Series 200/300, Series 500 and Series 800 computers. Each function that only applies to certain systems is flagged and there are appendices for the IPC and each of the other series that list and describe any peculiarities of that implementation. BUT what was even more surprising is that it states that many of the HP printers use the Amigo protocall! For the ones of you that aren't familiar with HPs that protocall is used for low end disk drives. This is the first time that I've heard that was also used for printers. Besides that statement it also has a "non-trivel" programming example of an "HP-IB driver that uses the Device I/O Library subroutines to drive various models of the HP Amigo protocall HP-IB printers". This might be a good starting point for anyone that wants to write and Amigo driver to talk to disk drives. Are you listening, Sergio and Peter? This book is definitely a keeper! It describes the HP-IB and GPIO interfaces for the various systems in detail including their status and control registers. It then describes how to use the DIL (Device I/O Library) included with HP-UX to set, read and control the interfaces and how to link calls to the DIL from Fortran, Pascal and Assembly language programs. It looks like a great source of info for anyone that wants to write their own device drivers or wants low level control of HP-IB and GPIO interfaces under HP-UX. I'm keeping this copy but I have another one that's already on E-bay. I know this sounds like a shameless plug but it's not. I'm just really impressed with this book. Joe

23 years, 1 month

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MicroVAX4000/505A drive sleds

by ClassicComputers＠bouncy-castle.demon.co.uk

Just acquired a VAX 4000/505A (thanks Paul!) with no disks installed - anyone got the details for adding a raw DSSI disk to one of these things ; the chasis has a drive backplane at the top with 4 edge connectors, into which a drive sled of some form slots in. I need to knock up whatever is on the sleds, drive LEDs & switches. Unless anyone has some excess sleds that I could liberate?... Ohhh, wonder if the MDS pils of docs has any details on this - off to look now :) ta greg

23 years, 1 month

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VCF Europa 4.0

by vcf＠siconic.com

This weekend is VCF Europa 4.0 in Muenchen, Deustchland! Complete information is on the VCF Europa website: http://www.vcfe.de I look forward to reports from those that make it since I won't be present this year :( -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 1 month

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Heathkit EC-1

by dwightk.elvey＠amd.com

>From: "Doug Coward" <mranalog(a)attbi.com> > > Ethan wrote: >> How does a resistive sheet computer work? > > I wrote: >> Resistive sheets belong to a category of analog >> computing called network analyzers. > > Oops, I need to correct this. > Resistive sheets belong to a category of analog Hi This is the place to describe my method of finding shorts on power planes. This is very much like the resistive sheet methods. You place a power supply across one of the two planes that has shorts between them, such that about one or two amps is flowing in current limit. You place one lead of a volt meter on the opposite plane and then probe with the other lead on the plane with the current flowing across it. You find a line where the meter reads zero. Now, move the power leads to an orthogonal corners. Again fine the line of zero volts. Where the two lines cross, you'll find the short. There are variations of this method for finding shorts between traces and even multiple shorts. Dwight

23 years, 1 month

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Heathkit EC-1

by dwightk.elvey＠amd.com

>X-Server-Uuid: 262C4BA7-64EE-471D-8B02-117625D613AB >X-Authentication-Warning: huey.classiccmp.org: mailnull set sender to cctalk-admin using -f >From: "Doug Coward" <mranalog(a)attbi.com> >X-Accept-Language: en >MIME-Version: 1.0 >To: cctalk(a)classiccmp.org >Subject: Re: Heathkit EC-1 >X-BeenThere: cctalk(a)classiccmp.org >X-Mailman-Version: 2.0.10 >List-Unsubscribe: <http://www.classiccmp.org/mailman/listinfo/cctalk>, <mailto:cctalk-request@classiccmp.org?subject=unsubscribe> >List-Id: General Discussion: On-Topic and Off-Topic Posts <cctalk.classiccmp.org> >List-Post: <mailto:cctalk@classiccmp.org> >List-Help: <mailto:cctalk-request@classiccmp.org?subject=help> >List-Subscribe: <http://www.classiccmp.org/mailman/listinfo/cctalk>, <mailto:cctalk-request@classiccmp.org?subject=subscribe> >List-Archive: <http://www.classiccmp.org/pipermail/cctalk/> >X-Original-Date: Fri, 02 May 2003 11:59:27 -0700 >Date: Fri, 02 May 2003 11:59:27 -0700 >X-WSS-ID: 12AC63976885576-01-01 >Content-Transfer-Encoding: 8bit > > Ethan wrote: >> How does a resistive sheet computer work? > > Just a quick note for now. > Resistive sheets belong to a category of analog >computing called network analyzers. > >> In the same vein (pun intended)... how would fluidic computers >> stack up? Digital? Analog? Mixed? > > Fluidics (or fluid logic) can have both analog >and digital processes. You can perform boolean >operations, but you also can have fluid amplifers. Hi An interesting side note. The power steering of your auto is an example of an analog fluid amplifier. Dwight > --Doug >========================================= >Doug Coward >@ home in Poulsbo, WA > >Analog Computer Online Museum and History Center >http://dcoward.best.vwh.net/analog >=========================================

23 years, 1 month

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Northgate OmniKey Ultra

by dholland＠woh.rr.com

Howdy all, I stumbled across a Northgate Omnikey Ultra (not UltraPlus) keyboard in the local thrift store, and picked it up for 5$. (It had a nice feel, kinda PS/2'ish, and no stupid windows, or various other internet/volume controls/etc keys.) I've had it for about a week now, and just can't get used to funky arrangement of the arrow keys in the middle, and the F keys on the left just throws my Unreal Tournament gaming off. (See http://www.northgate-keyboard-repair.com for some piccy's) Anyways, I gather these things were something of a 'gotta have it' keyboard at one time, and were bloody expensive. Thought I'd offer it up here, for 5$ + shipping before it goes downstairs in the basement to collect dust. One thing to note, is its got one of the AT style connectors in back, so you'll need an adapter if your going to plug it into a PS/2 style connector. (No, you can't have the one I was using) Visually, its pretty clean, there's a little green stuff on the bottom where I attacked (mostly ineffectively) some sticky stuff w/ a scrubbing sponge, but the top is (imho) nice and clean. I think all the keys work, however, there might be a few F keys I didn't hit the week I was using it. I gather it might of came with some extra keycaps when it was new, so you could move around control/shift. I do not have those. Anyways, enough disclaimers, Anyone want it? (I think this is at least on-topic) David

23 years, 1 month

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Analog auto systems (was: Heathkit EC-1

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >> > > I don't think _my_ auto (1968 Beetle) is an example of that. :-) >> > Well, now - not so fast! While your Bug may not have power steering, >> > if it's got an automatic transmission... >> Nope... 4-speed manual. There was this thing called an "auto-stick", >> but that was a servo-operated clutch (and an ordinary manual transmission) >> that engaged when you began to move the stick. You still shifted, but >> you didn't clutch. > >I don't think that I would call a torque converter a "servo". > Hi I put a brake servo on my '53 power wagon. That is gone now. The storm this last winter blew over a 147 foot Douglas Fir onto it. It push all 4 tires into the ground, down to the axles, and the axles to the frame. I think this is when the body finally gave. Dwight

23 years, 1 month

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Heathkit EC-1

by dwightk.elvey＠amd.com

>From: "Ethan Dicks" <erd_6502(a)yahoo.com> > >--- "Dwight K. Elvey" <dwightk.elvey(a)amd.com> wrote: >> Hi >> An interesting side note. The power steering of your >> auto is an example of an analog fluid amplifier. >> Dwight > >I don't think _my_ auto (1968 Beetle) is an example of that. :-) > >-ethan Hi Actually, now that you mention it, my '68 Fiat 124 Spider isn't either but it does have a vacuum booster on the master cylender. I guess well have to buy newer examples of analog amplifiers. Dwight

23 years, 1 month

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Looking for a 11/44 in denver area / colorado

by emu＠ecubics.com

Hi, Anybody out in colorado with a "spare" 11/44 ? Or even just a power supply for a 11/44 ? cheers & thanks

23 years, 1 month

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Neat find (in my own junk bin!) - NS 8073

by erd_6502＠yahoo.com

I was collecting all of my hex LED displays into one place so I can test them before embarking on a new 1802 project. I even dug into my old box of spare Elf parts and pulled out a small board with four TIL311 displays attached to a small microcontroller board - some kind of monitor/indicator given to me by the brother of the guy that got me into the 1802 as a kid. He had given it to me to harvest the TIL displays. I finally *looked* at the attached board to see what was on it - an NS 8073! I used to have access to an RB5X robot when I was a volunteer at the local science museum in High School - same chip - the hot-item-for-a-brief-moment microcontroller with embedded Tiny Basic. Now, rather than harvest the parts, I'm very tempted to reverse-engineer the schematic of the little board to see what it does. Looks like there's a small bipolar PROM, a 6116 SRAM, one or two TTL chips, and the TIL311s driven by the output pins of the 8073. The whole thing is only a few square inches. The funny thing is that I'd recently picked up a few 8073s from ePay to play with. I was planning on hooking them up to some 8031-based 8-line LCD displays I got for a few bucks each (originally out of some flavor of AT&T office phone, IIRC). Sort of the Classic Attraction principle in reverse - new toys attracting alike items >from the recesses of the junk box rather than the normal way 'round. Has anyone else played with the 8073 (in an RB5X or not)? If they hadn't been so pricey 20 years ago, I might have gotten one to experiment with back then. -ethan The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

23 years, 1 month

1
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Heathkit EC-1

by mranalog＠attbi.com

Ethan wrote: > How does a resistive sheet computer work? I wrote: > Resistive sheets belong to a category of analog > computing called network analyzers. Oops, I need to correct this. Resistive sheets belong to a category of analog computing called passive element computers in which network analyzers are probably the biggest and most well known examples. But it also includes * conductive sheets * electrolytic tanks - create 3 dimensional simulations * resistor networks * pin and rod systems * resistor and capacitor network Passive element computers normally models a physical system using only passive R-L-C components, and solve equations in which dimensions in space are the independent variables, rather than time. Applications for passive element computers include things like the simulation of * reception patterns of a receiving antenna * temperture, and pressure flow in a nozzle * diffusion of material at a transistor junction Here is an example: You solder together a large two dimensional matrix of resistors (all the same value). At each node where the resistors are soldered together you solder a capacitor connected to ground. You then apply a voltage to one corner of this resistor and capacitor network. As the current flows through the network it begins to charge the capacitors. You now have a computer that simulates the heat flow across a metal plate the size of your matrix, both over distance and over time. Without the capacitors you are simulating only over distance. A resistive sheet is a resistor matrix with a very fine mesh. The finer the mesh, the better the simulation. "Rubber-sheet computers have been used extensively to study the trajectories of electrons and gas ions in vacuum and gas tubes" -Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog =========================================

23 years, 1 month

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HP Amigo command set and HFS disk format

by peterbrown10＠hotmail.com

Hi All, Looks as though the CS80 / LIF part of my HPIB disk reader/writer is working OK now - thanks to those who gave me pointers. I've come across another HPIB hard disk that that uses the Amigo command set (- I think) and contains data in HFS format. Does anyone have full documentation for these two standards in .pdf format? Cheers Peter Brown _________________________________________________________________ On the move? Get Hotmail on your mobile phone http://www.msn.co.uk/mobile

23 years, 1 month

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256x4 80NS or faster

by anheier＠owt.com

I have a fair quantity of the following: P21256-12 MCM6256BP12 Lh21256-12 MTC4c1024-8 KM41C1000BP-8 thanks Norm snip: >Date: Tue, 29 Apr 2003 11:37:28 -0700 >To: classiccmp(a)classiccmp.org >From: Geoff Reed <geoffr(a)zipcon.net> >Subject: 256x4 80NS or faster >Reply-To: cctalk(a)classiccmp.org >anyone have any of these floating around? I can't believe I gave 'em all >away and now I need to populate a laserjet IIID memory board :(

23 years, 1 month

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