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

by chomko＠greenbelt.com

Pulled off alt.foklore.computers: Interdata History - From: Will Jennings <XDS_Sigma7(a)hotmail.com> Fri Jun 9 14:42:19 2000 <quote on> Subject: Interdata, Perkin-Elmer, et al. OK, a brief history of Interdata, etc.; Interdata was founded in about 1967 in Oceanport, NJ, and the majority of the funding was put up by the local jockey club because they wanted to grow Oceanport into a more high-tech area. This would later cause them some problems, i.e. I heard a story about how AT&T was going to buy a large quantity of Interdata machines, then looked into the background of the company, saw that the Oceanport Jockey Club was the main stockholder, and cancelled the deal. Afterwards, they redistributed the stock so that say John Doe was a stockholder, and he just *happened* to belong to the jockey club (told to me by a former Interdata employee). Anyway, the Interdata machines use the IBM S/360 instruction set, and most programs written in S/360 assembler will run unmodified on an Interdata, provided that they don't use floating point (S/360 floating point is ODD!), and are not dependent on a certain IBM device being present, i.e. a program that had routines specifically for use with a 7320 in it would not work. The assembler is even called CAL (Common Assembly Language) whereas the S/360 assembler is called BAL (Basic Assembly Language). Interdata also used the weird IBm terms, i.e. SELCH, MUX, IPL, MTM, etc. In fact, on the later machines, the racks are even IBM blue. I could talk about all the Interdata models but I don't want to flood the list, so I'll keep it to their most significant model, the 7/32. The 7/32 was the world's first 32-bit minicomputer, introduced in 1973. The 7/32 is also significant in that it has a cycle of either 750 or 1000ns, depending on the core, and it can have up to one megabyte of memory. Not to mention the fact that it has a full display panel, which is even more impressive with the hexidecimal option. Anyway, Perkin-Elmer bought Interdata in about 1975, and continued to market and develop the products but with the P-E name on them. The first machine that P-E sold without it being a rebadged Interdata was the 3220 (1978), which looks a lot like the 30xx series of machines from IBM. The 3200 series machines are backward compatible with the two Interdata 32 bit machines, the 7/32 and 8/32. In 1979, P-E released the 3210, which is twice as fast as a VAX 11/780, and it fits in a normal size rack instead of a massive unwieldy thing. In 1985, P-E spun off the computer division as Concurrent Computer Corporation, who is still in business (http://www.ccur.com). Concurrent also bought Masscomp in about 1989 or so, and still makes machines based around Masscomp's RTU operating system. All of the Interdata/P- E/Concurrent hardware is specifically designed for real-time applications, and as such, is less well-known then companies like DEC who made general-purpose machines. If anyone is interested, I'll make an Interdate/P-E/Concurrent web page. I personally own 2 Interdata 7/32's, 2 P-E 3203's, a P-E 3205, and 3 P-E 3210's. I wouldn't mind more either... or a Masscomp.. heh Will J (From: Will Jennings <XDS_Sigma7(a)hotmail.com>) <quote off>

25 years, 4 months

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SC/MP Elektor Emulator

by Robert_Feldman＠jdedwards.com

http://www.elektor-electronics.co.uk/ -----Original Message----- From: Sipke de Wal [mailto:sipke@wxs.nl] Sent: Tuesday, April 17, 2001 4:14 PM To: classiccmp(a)classiccmp.org Subject: Re: SC/MP Elektor Emulator <snip> By the way ....... I know the url of the dutch Elektor site: http://www.elektuur.nl (but don't know if they have versions of their site for other languages ) <snip>

25 years, 4 months

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Kim / Commie keypads

by ajp166＠bellatlantic.net

It's in the RSU catalog. It's on the wall in nashua as part of a chassis box. I don't claim any genius but, it still amazes me that I can find something so trivial with zero effort. IF ALL ELSE FAILS TRY THE DIGIKEY OR NEWARK CATALOGS. Sure they are pricy but they do have it. Keypads are still used widely for many applications, where is the difficulty? Allison ------Original Message------ From: "Richard Erlacher" <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org Sent: April 17, 2001 3:37:49 AM GMT Subject: Re: Kim / Commie keypads Well, talking to the folks at Radio Shack, visiting a store, and searching through their catalog (with the aid of the fellow at the store) didn't yield any keypad kits. The part number you posted doesn't fit a Radio Shack part number format according to the guy at RS. That's why I asked for the part number, because, though they have thousands of stores with many employees, they have, collectively, only two grey cells to rub together when it comes to finding something. That's as much as I'm going to do, since (a) I dislike going to Radio Shack (b) I don't have a KIM-1, nor am I likely to get one, and (3) I doubt that Radio Shack will EVER have a keypad that will even with extensive modification be suitable for this application, or, for that matter, anything else of any value, except by the wildest stroke of luck. Dick ----- Original Message ----- From: "ajp166" <ajp166(a)bellatlantic.net> To: <classiccmp(a)classiccmp.org> Sent: Monday, April 16, 2001 5:13 PM Subject: Re: Kim / Commie keypads > From: Richard Erlacher <edick(a)idcomm.com> > > > > >This RS pad must have a catalog number, though, Allison. Since you've > seen it, > >perhaps you could provide the catalog number, as the RS meatheads > wouldn't know > >what a keypad kit was if you asked them. > > > Well while picking up a barrel connector I noticed the Nashua store had > it on > the wall. I think 270-015 is the catalog number. Sheesh, if I do that > might > as well sent it to me for installation and labeling. Is it possible to > read a catalog > these days or has the "go ask the web, thin I don't have to work" > mentality > taken over? > > Allison > >

25 years, 4 months

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Kim / Commie keypads

by ajp166＠bellatlantic.net

I didn't miss the point. Rather I choose to ignore the whining and moaning about something that is not rocket science. Given that basic box ( the key pad is removeable!) and a pair of shears I'd be running. Then again I'd be able to find a better match because I'd look rather than grousing about it. Sheesh! Allison ------Original Message------ From: "Richard Erlacher" <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org Sent: April 17, 2001 2:54:34 PM GMT Subject: Re: Kim / Commie keypads You've missed the point, Allison ... There are dimensional requirements that have to be met if the keypad is to fit as a replacement for the KIM-1 keypad. It must physically fit, and it must have the same scanning matrix. Now, I haven't seen the chassis box to which you refer, but I'd bet that RS doesn't sell the keypad by itself, nor do I believe that the keypad is dimensionally suitable. If one is interested in an external keypad, there are LOTS of options, and there's certainly no need to consider the sort of rubbish sold at RS. Dick ----- Original Message ----- From: "ajp me" <ajp166(a)bellatlantic.net> To: <classiccmp(a)classiccmp.org> Sent: Tuesday, April 17, 2001 6:48 AM Subject: Re: Kim / Commie keypads > It's in the RSU catalog. > It's on the wall in nashua as part of a chassis box. > > I don't claim any genius but, it still amazes me that I can find something so trivial with zero effort. IF ALL ELSE FAILS TRY THE DIGIKEY OR NEWARK CATALOGS. Sure they are pricy but they do have it. Keypads are still used widely for many applications, > where is the difficulty? > > Allison > > > ------Original Message------ > From: "Richard Erlacher" <edick(a)idcomm.com> > To: classiccmp(a)classiccmp.org > Sent: April 17, 2001 3:37:49 AM GMT > Subject: Re: Kim / Commie keypads > > > Well, talking to the folks at Radio Shack, visiting a store, and searching > through their catalog (with the aid of the fellow at the store) didn't yield any > keypad kits. The part number you posted doesn't fit a Radio Shack part number > format according to the guy at RS. That's why I asked for the part number, > because, though they have thousands of stores with many employees, they have, > collectively, only two grey cells to rub together when it comes to finding > something. That's as much as I'm going to do, since (a) I dislike going to > Radio Shack (b) I don't have a KIM-1, nor am I likely to get one, and (3) I > doubt that Radio Shack will EVER have a keypad that will even with extensive > modification be suitable for this application, or, for that matter, anything > else of any value, except by the wildest stroke of luck. > > Dick > > ----- Original Message ----- > From: "ajp166" <ajp166(a)bellatlantic.net> > To: <classiccmp(a)classiccmp.org> > Sent: Monday, April 16, 2001 5:13 PM > Subject: Re: Kim / Commie keypads > > > > From: Richard Erlacher <edick(a)idcomm.com> > > > > > > > >This RS pad must have a catalog number, though, Allison. Since you've > > seen it, > > >perhaps you could provide the catalog number, as the RS meatheads > > wouldn't know > > >what a keypad kit was if you asked them. > > > > > > Well while picking up a barrel connector I noticed the Nashua store had > > it on > > the wall. I think 270-015 is the catalog number. Sheesh, if I do that > > might > > as well sent it to me for installation and labeling. Is it possible to > > read a catalog > > these days or has the "go ask the web, thin I don't have to work" > > mentality > > taken over? > > > > Allison > > > > > > >

25 years, 4 months

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DEC support on Compaq

by rhblake＠bigfoot.com

This might interest some of you with DEC equipment, found by someone else on Compaq's site: http://www4.support.compaq.com/support/

25 years, 4 months

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Dr. Dobb's from the '80's --- taken., Thanks.

by nerdware＠laidbak.com

Thanks for the replies. First one in got 'em. I have some other old stuff to clear out as I make room for the audio studio here in the basement....if it doesn't sell, I'll throw it up here. Have a bunch of Byte's going way back, plus several Kilobauds and some other stuff. Paul Braun WD9GCO Cygnus Productions nerdware_nospam(a)laidbak.com "A computer without a Microsoft operating system is like a dog without a bunch of bricks tied to its head."

25 years, 4 months

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Micropolis drives (was: Micro-Expander disks

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > The early Micropoli that I'm familiar with do not look anything like a > Tandon. They are designed to operate horizontally, but will work on their > sides. The disk goes in through a slot, and then the entire mechanical > carriage is pushed down by pressing down on a small panel in/below the > middle of the slot. Pressing the same panel again permits the carriage > assembly to pop back up and partialy eject the diskette. The "Type I" was > 48tpi SS?, and the "Type II" was 100TPI. This drive is definitely different: it's more like the entire mechanical carriage is pushed down when the door is opened, and rises when the door is closed. Given the date I wonder whether it's a redesign to look like the drives on the IBM PC. Oh, and I was wrong about one thing: there is an optical emittor/sensor and a bit that interrupts it, but it's not directly attached to the door, and it interrupts when the door is open. > How about connecting it in place of a 720K (even on a PC configured for > 720K 3.5") and seeing whether the disks that it formats will interchange > with a Tandon TM100-4, Teac 55F, or Shugart/Matsushita/etc 465? There's a thought. I think I have a Morrow Micro Decision that's been fitted with a 96TPI 5.25" drive (along with a 720K 3.5" and two 48TPI 5.25" drives), I should try to dig that (and its software) out and see if I can exchange media between them. -Frank McConnell

25 years, 4 months

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Tektronix 4105 terminal

by chomko＠greenbelt.com

It has a whole mess of EPROMs on the backside of the monitor part. I didn't look close enough to see what type of CPU it has. Anyone know anything about it? Eric

25 years, 4 months

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PDP-8/i: SOLD!

by aw288＠osfn.org

The PDP-8/i has been spoken for. Thanks to all that asked. William Donzelli aw288(a)osfn.org

25 years, 4 months

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Still looking for a couple of answers to questions for the Heath H-27 floppy controller

by ethan_dicks＠yahoo.com

OK... so I got this H-27 that locks up the Qbus when it is in the grant chain and works ok (except for interrupts) when it is past the end of the granted devices (one or more blank Qbus slots in-between). I've pulled and tested each and every TTL chip, but can't use the auto chip tester on the Nat'l Semi parts. My questions are this: What are the three jumpers for? (E-1 through E-3, between U11 and U12, and U7 and U8) What bus drivers/receivers directly interact with the interrupt grant chain? If I'm lucky, it's U11 and U7 - I have plenty of 8136 chips. What can I substitute for DS8837 and DS8839 chips, if one of them is at fault? __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

25 years, 4 months

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Various manuals FS

by djg＠drs-esg.com

I was browsing through a local used book store and found some stuff other may want. These are the listed prices, shipping additional. I have not purchased them but can and ship them off if interest. In general if you have the equipment you get priority or wanting multiple, offering PDP-8 stuff, or offering more than list. Email me not list if interested. Heathkit Hero Jr Robot Model RT-1 1984 Technical Manual $2.95 Assembly Manual $2.95 Digital Technical Journal Aug 1985 VAX 8600 $3.50 Update notice TOPS-10 operating system commands manual Feb 84 (only update not entire manual) $5.50 IBM replaced maintenance parts returnable 1952 (parts list with prices for various equipment). Somewhat worn $7.50 And the following Control Data (CDC) manuals. All are in reasonable physical shape but heavily marked up. I'll be impressed if you have one of these. 3300 Traning Manual second edition 1968 Vol I $3.50 Vol II $5.50 Disk storage equipment traning manual 1969 (853 and 854 drive) $4.50 Visual displays traning manual 1967 (210,211,212,250,280) $3.50 915 page reader a programmed text 1967 Vol I $3.50 Vol II $5.50 3300 Data processor machine language coding form $2.50 Logic circuits experiments 1969 $3.50 Active networks experiments revised 1968 $3.50 Passive networks experiments revised $3.50 David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights

25 years, 4 months

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50 pin SCSI to 50 pin centronics

by fmc＠reanimators.org

Fred Cisin <cisin(a)xenosoft.com> wrote: > > BTW, there IS a documented fatality from the frustrations of serial > > interfacing. "Lanny Cox" <chronic(a)nf.sympatico.ca> wrote: > I hope you're joking, but if not, how did this occur? Electrocution? High > blood pressure due to frustration? I'm envisioning the frustrated party applying the frustrating device as a blunt instrument upon its designer, but somehow I expect the truth is not so satisfying. -Frank McConnell

25 years, 4 months

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unix for the Interdata model 70 ???

by xds_sigma7＠hotmail.com

Don't forget OS/16... I could get OS/16... Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 4 months

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Micropolis drives (was: Micro-Expander disks

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > On 16 Apr 2001, Frank McConnell wrote: > > Hmm, here I sit looking at one of a pair of Micropolis model 1115-VI. > > It's a 5.25" full-height drive, serial 0372. Someone (not me) helpfully > > wrote on it with a marker: > They might be right. I had heard that Micropolis came out later with a > 96TPI, but I've never seen it. The date code and the double sided is > consistent with that. Is it really 2 sided? What kind of door assembly > does it have? Looking at it from the front, it looks like a typical full-height Tandon as seen in an IBM PC or Shugart drive. Flat door, closes down over center of slot. A printed-circuit board covers the top of the drive. I think there are two sets of head leads that disappear into the interior. The door, when closed, has a flange that pokes through a slot in the board to interrupt an optical emitter/sensor pair. What's funny is that the top hub appears to be fixed. The bottom hub is mounted to a sort of sub-frame that pretty much covers the bottom of the drive, and it pivots (drive shaft, drive motor and all) about the middle of the outer frame as you close the door. Of course, this makes looking into the interior of the drive more fun than usual, because it's completely surrounded by stuff. > But they might be mistaken, and have ASSUMED 96TPI due to it not being > 48TPI, and/or having about 80 tracks. I've even seen people label 720K > 5.25" drives as being 1/2M, "because it's NOT a 360K". Yep, that is what you got me thinking. -Frank McConnell

25 years, 4 months

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Cheap MicroFiche scanner

by healyzh＠aracnet.com

Does anyone know anything about the "Image Mouse"? The price looks to start at $2500, and will scan a "page" in less than a second! It sound like it would be fairly easy to scan in a page or two of fiche when needed with one of these! Zane > >http://www.zytrondfw.com/imagemouse/imagemouse.html > > > >http://www.eyecom.com/MousePlus.html > > > >http://infographix.com/Microfilm_Scanner-image-mouse.htm > > > >http://www.librarystoreltd.com/imagemouse2.shtml > > > >http://www.microequip.com/newprod.htm

25 years, 4 months

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SC/MP Elektor Emulator

by jos.mar＠bluewin.ch

-----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, April 17, 2001 12:25 AM Subject: Re: SC/MP Elektor Emulator >> >> Sipke de Wal wrote: >> >> > The Dutch Elektuur magazine (Elektor) devoted a lot of space 24 years ago >> > to a build-it-yourself SC/MP system. The firstversion came with dip-switches to >> > toggle in binary data into 256bytes of RAM. >> >> Was in the german version of elektor too. >> scampi ;-) > >And in the UK version IIRC. The version I remember had a PCB with the >SC/MP (the origial PMOS version) and IIRC the crystal on it, linked by >ribbon cables (with individual socket contacts on each wire -- no IDC >connectors :-() to another board with the memory and DIP switches, etc on it. > But does anyone remembers the computer Elektuur published before that, in 1974 ? It was a TTL based computer with a choice of memory : extremly expensive 2102's or moderate priced CCD's (bit bucket's) that offered serial access only ( i.e. a solidstate "magnetic drum") I really would like to see the articles again, but am unable to get my hands on such old issues of Elektuur. Jos Dreesen

25 years, 4 months

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SC/MP Elektor Emulator

by sipke＠wxs.nl

Hi Folks I'ts been a productive Easter ........ Hope you had a nice couple of days also 25 years ago National Semiconductor introduced the SC/MP microprocessor Today I finished the alpha release of an Emulator for the SC/MP. It is written in Visual Basic 6.0 and the sources are included also. Docs and background are also info aviable. The Dutch Elektuur magazine (Elektor) devoted a lot of space 24 years ago to a build-it-yourself SC/MP system. The firstversion came with dip-switches to toggle in binary data into 256bytes of RAM. Fiddeling with a few other switches would lead to running programs and getting output via 8 LEDs. This system is what the emulator emulates. Kinda Altair but with a very simple CPU. I've also dedicated part of my website to this program and will eventually add more SCMP-stuff. You can read about and fetch the proggy at: http://xgistor.ath.cx Go => Vintage Computers => SC/MP Elektor Emulator --------------------------------------------------------------------- Sipke de Wal

25 years, 4 months

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Micropolis drives (was: Micro-Expander disks

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > Micropolis had 2 major models of their 5.25" drive. One was 48TPI, with > 35 tracks (maybe 40), and was essentially interchangeable with the Shugart > SA400. It was fairly slow stepping, since it used a helical lead screw. > But it was a nice drive for TRS-80. > > The other was 100 TPI, with 77 tracks, not to be confused with the far > more common 96TPi 80 track drives. There is a somewhat rare Tandon > TM100-4M drive that can be used as a substitute for the Micropolis. > (Some think that the 'M' stands for Micropolis as replacing the Micropolis > 100TPI is its only use.) Hmm, here I sit looking at one of a pair of Micropolis model 1115-VI. It's a 5.25" full-height drive, serial 0372. Someone (not me) helpfully wrote on it with a marker: 96 TPI 2 SIDED 5 1/4 Date codes on the ICs would seem to place its manufacture sometime in early-mid 1983. Was the someone with the marker perhaps mistaken? Hard to tell from http://www.mfarris.com/know/floppy/floppy2.html -- that doesn't seem to get any more specific than "SD"/"DD"/"QD"/"HD". -Frank McConnell

25 years, 4 months

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Looking for Dongleville

by mikeford＠socal.rr.com

Anybody live in Dongleville? (the place where all missing PCMCIA dongles disappear to) Sitting on my desk I have 3 PCMCIA cards I recently purchased that are missing dongles/orphans; Noteworthy SCSI II adapter, NWSCSI01 3Com EtherLink 10bt, 3C589D Xircom Netwave Adapter, CNW The Xircom doesn't need a dongle, it needs a friend, ie another card or a base station thing. Xircom sold to Baytech, which passed it on to Nortel, but some old drivers are out there on ftp. I am looking to buy/trade for another card/base, or sell the little devil to somebody that has them. Not fast, 40k Bps, but anything wireless seems like kind of a fun toy. 3Com dongle I KNOW will turn up, so I am less wild about getting one from a distant place, but all deals considered. Noteworthy, it isn't real clear to me just what I would do with this one, but I suspect the dongle is pretty obvious given the SCSI2 connector it must have. If I could use it with one of my old laptops to field test hard drives it would be worth some cost for a cable, but I haven't found anyspecs for it. BTW I bought the 3Com and Noteworthy from a scrapper with a box full at $5 each.

25 years, 4 months

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Looking for Tek 545B manual for someone

by rhblake＠bigfoot.com

Anyone have a ops & service manual for a Tektronix 545B (old tube type, circe 1965) oscilloscope? A friend of mine in Wyoming has been given one and she wants to learn how to use it. A photcopy is even good. I have some commercial sources but if anyone has ever tried to find a manual you know what vultures the manual vendors can be. Any responses are greatly appreciated.

25 years, 4 months

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Looking for Tek 545B manual for someone

by mcguire＠neurotica.com

On April 16, Russ Blakeman wrote: > Anyone have a ops & service manual for a Tektronix 545B (old tube type, > circe 1965) oscilloscope? A friend of mine in Wyoming has been given one > and she wants to learn how to use it. A photcopy is even good. I have some > commercial sources but if anyone has ever tried to find a manual you know > what vultures the manual vendors can be. > > Any responses are greatly appreciated. Can't help you with the manual, but tell your friend that she's gonna love it. I've got a 545A that I just adore. It's a wonderful scope. My everyday scopes are Tek 2465A and HP 54111D, but I'll keep my trusty 545A forever. It's a really rock-solid scope. -Dave McGuire

25 years, 4 months

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SCSI CD-ROM

by alinder＠ProgressLighting.com

Hi All, Many thanks to Joe for supplying me with a keyboard and mouse for my HP Apollo. Works great. It did allow me to boot up and provided me with some functionality but the OS is corrupt. Now I'm in the market for an external chassis or external SCSI CD-ROM that would allow me to reload an operating system. I wish there was a DRMO or disposal site close to me, but I happen to live in one of those places where used computer parts are scarce and if you can find them you have to pay $$$$$$$. I thought ebay was bad. Any help would be appreciated. Arnie

25 years, 4 months

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My Collection

by jos.mar＠bluewin.ch

-----Original Message----- From: Jerome Fine <jhfine(a)idirect.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, April 13, 2001 5:18 PM Subject: Re: My Collection >>Marian Capel wrote: > >> PDP8/F with TU56 and DSD440 >> PDP8/A with TU56 and RL01 >> VT100, hacked about to contain an 11/23, with external ST412, runs RX11. >> Anybody has some RT11 manuals available. >> Jos Dreesen > >Jerome Fine replies: > >Interesting collection. I had not realized that DSD made a controller for the >PDP8, just for the PDP-11. Also I am really surprised that DEC made >an RL01 controller for the PDP8. As someone else mentioned: the RL01 only fits to the 8/A. The DSD440 controller for omnibus will have to be made from the schematics in the manuals..... Luckily i have an omnibus experimental board. But currently the DSD fails it's selftest... > >AS for your VT100, it sounds like you might have a VT103 which was a standard >DEC product. Does it use a dual 11/23 but have added a 3rd party MFM controller >with its own boot ROM or are you using a quad 11/23 and an RQDX1? > The system is definitly a hacked VT100 : it contains an M8186 ( dual 11/23?) a RQXD1, (with a possible custom boot prom), a M8044 32 KMOS memory board , itself hacked to contain 256K,a M8043, a third party NC550 programmable clock and a DSD440 controller card. The system boots of the ST412 into RT11. The system is in a very hobbyist state... Of course the VT100 also contains a second powersupply. >Also, I am not surprised, but no one seems to consider software as part >of their collection It certainly is, but how often does a system you've pulled from the dumpster contains a matching suite of software ? Jos Dreesen >

25 years, 4 months

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Micro-Expander disks

by Parapadakis＠Tesco.Net

Hello, Back in '82, I used a micro-Expander with a floppy drive. It run CP/M an we used it for CIS-COBOL programming. If I remeber, the disk-drive was an Micropolis(???) Does anybody know the details of the disk format, so that I can read the disks I have? Regards George Parapadakis

25 years, 4 months

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Dr. Dobb's from 82 & 83

by nerdware＠laidbak.com

Hi, gang. I have 8 issues of Dr. Dobb's from 82 & 83. I tried 'em on ebay, but the response was underwhelming both times I listed them. So, I'm offering them to the first person who wants them and is willing to pay postage. Let me know. Thanks! Paul Braun Cygnus Productions nerdware(a)laidbak.com

25 years, 4 months

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Tektronix 8501 Data Management Unit

by JOHN.M.CHU＠saic.com

I have a couple of 8" floppy disks. I believe that at that time they used 8560 Tektronix system with Tnix OS for these floppies. Now I want to transfer data from those floppy disks to different media. It is hard to find a service that does the data conversion from those floppies. Does anyone have any recommendations? Thanks for a million times

25 years, 4 months

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RT-11 - An Open letter to Mentec?

by dburrows＠netpath.net

I am actively involved in the hobby program with Mentec. ( I even managed to drag a couple other members of the list into it) The RT11 release is just waiting for one last update for something that will be on the CD. All of this probably would have been completed over a month ago but I had a major fire that destroyed my office and storage buildings at the end of January. ( You don't even want to know the amount of DEC equipment and docs that were destroyed - over 3000 sq. feet of tightly packed racks and shelves) this ranged from 11/40, 11/04 through 11/93's, M90's, M100's, numerous VAX's up to and including a couple 4705A's. Needless to say this has put me WAY behind financially and with the regular customers I support. I will be announcing it here when it is official but in the meantime please go easy on Mentec. It ends up trickling back to me and I am doing as much as I can, when I can. RSX and RSTS will follow as my time ( and the others involved) permits. Also don't expect them to be willing to put any time or effort into support of hobby users. If you want support then you need to be a real commercial paying $$ customer that pays for the consulting time like many of us here get paid that are consultants. Dan

25 years, 4 months

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RT-11 - An Open letter to Mentec?

by jhfine＠idirect.com

Is this a duplicate message? I sent it at 16:04:04 - 04:00 (EDT) just over 92 minutes ago! Either <classiccmp(a)classiccmp.org> did not receive it or (more likely) my ISP did not send it! Or my ISP lost the reply! The test message I sent at 17:12:55 took about 20 minutes round trip - not too bad, but since it has been over an hour and a half for this message, here it is again! I suspect the most likely possibility is that the original was lost since I have received many e-mails from classiccmp today!!! ----------------------------------------------------------------------------------------- Of all the individuals of whom I am aware of that are still interested in any aspect of RT-11, about half subscribe to this list. Since this is still essentially a private as opposed to a public list (such as a news group), I would like some help plus an opinion on whether or not anyone would still be interested in an RT-11 News Letter? Also, should Mentec be approached to possibly support, provide a forum or at the very least provide its blessing? Obviously, I could just send a brief request via this list along with the "alt.sys.pdp11", and "vmsnet.pdp-11" news groups before I even contacted Mentec to find out if enough people are interested. But if some suggestions and feedback are useful prior to that inquiry, then Mentec might be more receptive. Note that the News Letter could be for both hobby and commercial users. Topics could be Y2K compliance for the hobby V5.03 as well as bug fixes for current V5.07 and enhancements for all versions. DEC used to publish an RT-11 status document each month, but there are obviously no funds as well as no need at this point due to the internet making distribution costs zero. However, I suspect there are not many more years left before interest may dip below a self-sustaining level. Consequently, it might be helpful to find someone who will attempt to assist new converts as well as helping with bugs and enhancements. I know that some interest remains in RT-11 and I would like to pass on my information so that it can be preserved. By the way, has anyone heard anything more about the hobby license issues for all PDP-11 software from Mentec along with anything specific about RT-11? I would appreciate any and all comments along with suggestions on how to proceed with getting Mentec involved (Is that a plus or a minus?) although at this point I feel the chances are very low and I would be more than satisfied if Mentec was just neutral. Sincerely yours, Jerome Fine

25 years, 4 months

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NeXT slabs, recent finds and a request

by agraham＠ccat.co.uk

Hi Folks, Curt, would you consider shipping a slab to the UK, and if so how much would it cost me? I think the chances of getting one over here otherwise might be pretty slim! Recent finds: Boxed Atari 520STfm Boxed Amiga A590 hard drive - nice! Like the SCSI out on the back. Odyssey 1 'Baseball' game in practically complete condition Unused boxed Timex Sinclair TS1000 Unused boxed Timex Sinclair TS1500 Unused Timex Sinclair TS2068 - smart :) Even the demo cassette is still wrapped. ICL One-Per-Desk with hi-res monitor in fully working condition; it's even y2k compliant! Mint boxed Sega Megadrive II to go with my Megadrive and MegaCD Commodore CDTV with keyboard and floppy drive - wahey! Another Mac Colour Classic :) I'm a sucker for compact macs, plus it was only ukp10. Mac Performa 5300 Acorn A7000 with monitor and keyboard Acorn A4000 with keyboard (another one) Fileware 'Twiggy' disk for the Lisa 1 :o)) Open University PT502 'Hektor' training machine. Hehe.....goes nicely with the PT501! Requests: Anyone got a spare superfloppy for the Mac Colour Classic? My new one's suffered from the 'dead floppy being pulled out with pliers' syndrome so the r/w heads are munged as is some of the sensory gubbins. And, anyone got a remote control and mouse for the CDTV they don't want any more? <hopes>. My CDTV works fine but it's difficult to use without the remote..... cheers! -- Adrian Graham MCSE/ASE/MCP C CAT Limited Gubbins: http://www.ccat.co.uk (work) <http://www.snakebiteandblack.co.uk> (home) <http://www.binarydinosaurs.co.uk> (The Online Computer Museum, as featured in Computer Weekly!) 0/0

25 years, 4 months

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Looking for Tek 545B manual for someone

by mcguire＠neurotica.com

On April 16, Russ Blakeman wrote: > I have the 454A and HP 54201D and I'm set for good, at least now. Ahh, both nice scopes. I've seen many a 454A but never owned one. I did own a 54201D for a long time, though. A great scope! My favorite thing about it was that nice huge CRT. No squinting with that scope! :-) > By the way I misread your first message where the note of good scopes was to > someone else. Ignore my DUH reply. Understood...no biggie... -Dave McGuire

25 years, 4 months

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Honeywell Level 6 Stuff Needed

by univac2＠earthlink.net

Does anyone have anything for this computer? It's sitting in our house collecting dust because I have no software for it, and it doesn't have a programmer's panel. I would at least like the full control panel so I could run machine language programs (assuming I can find out anything about it). Every couple of months I renew my interest in my Honeywell Level 6 minicomputer. Thanks, Owen

25 years, 4 months

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Singer [TaDa!]

by mcguire＠neurotica.com

On April 16, Gene Buckle wrote: > Here's the last commercial simulator for the Lockheed L-188 (Electra). This > is the civilian version of the P-3 Orion. > http://deltasoft.fife.wa.us/BehindTheScenes/lockheed.html What a great set of pics! -Dave McGuire

25 years, 4 months

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Technico (Re: TI Minicomputer?)

by ajp166＠bellatlantic.net

The F8 is one I skipped over by choice. I do have basic data on it though. The 8080/8085/z80/z180/z280 and Z800x are machines I'm also familiar with. The only SBC in the 8080 family is the STP cards from VT100s I have gobs of them and they make handy little controllers. Other chips level cpus I've played with include the 8008, 8048/8049 family, 8051, DEC T-11, NSC800, NEC D78xx series, many of the 4bit machines other than intel's. Allison ------Original Message------ From: Eric Chomko <chomko(a)greenbelt.com> To: classiccmp(a)classiccmp.org Sent: April 13, 2001 2:53:27 PM GMT Subject: Re: Technico (Re: TI Minicomputer?) ajp me wrote: > For me to build it as a class project I'd have been the professor. I'd been out of school for a while by then. > No, I wanted a 9900 based machine to see what was on the non intel track back then. My 9900, ELF, 6800d1 and SC/MP all came from that effort back then. I've had them since before 1979. > Whoa! The class I took in microcomputers (two actually) was once a week at 7:00pm. I was a regular full-time day student at that time. However, the class was populated with many over 30 types and in one class the Prof. was about 60 and the other class the Prof was 28! Interesting group of machines. Did the F8 have an eval kit?, as you mention the Ti-9900, RCA 1802, Mot 6800, and National's "Scamp". Fairchild's F8 seems to be the ONLY one you missed barring 6502 and Z-80, which became very popular anyway. I think I have the spec books for most of the chips you list above. Eric > > Allison > > ------Original Message------ > From: Eric Chomko <chomko(a)greenbelt.com> > To: classiccmp(a)classiccmp.org > Sent: April 13, 2001 4:07:02 AM GMT > Subject: Re: Technico (Re: TI Minicomputer?) > > Did you build it for a class project? Techinco was based out of Columbia, MD. > > Eric > > ajp166 wrote: > > > From: James B. DiGriz <jbdigriz(a)dragonsweb.org> > > > > >On Thu, 12 Apr 2001, Eric Chomko wrote: > > > > > >> > > > >> > > >> A company called 'Technico' put out a TI 9900-based single board mirco > > back in > > >> the > > >> late 70s before TI had the 99/4. I rememebr building one for a class > > project in > > >> college. In fact, I got one in the attic that I need to frag out of of > > these days > > > > I have one and it's operational. Bought is back in '77. > > > > Allison

25 years, 4 months

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Looking for Tek 545B manual for someone

by mcguire＠neurotica.com

On April 16, Jim Strickland wrote: > On this note, can someone recommend me a good 'scope for a beginner? > I'm looking to get into microcontroller programming and robotics and can see > a whole bunch of places where a scope is pretty much a necessity. > > inexpensive is good, and I'm not afraid to use vaccuum tube equipment so > long as it doesn't require too too much tweaking to produce useful results. Tek 465/475 scopes are compact, reliable, predictable, and old enough to be affordable. Those scopes are easily the most popular of that era, sorta the Fluke 77 or Simpson 260 of oscilloscopes. Solid, proven design, easy to use, predictable, smooth, bulletproof. If you have a bigger budget, a Tek 2445 is a *sweet* machine, as are its bigger brothers in the 2465 family. I paid about $1200.00 for my 2465A as a point of reference. But if money is a concern, if you can live without fancy on-screen digital parameter display and stuff like that, a 475 (or 475A) can be had for less than $300.00. There's one on eBay right now, two hours left, at $175.00. http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1229127837. -Dave McGuire

25 years, 4 months

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My collection

by blacklord＠telstra.com

Oh well, while we're at it : CBM PET 2001 CBM PET 4032 VIC20 (several) C64 (several & variations) C128, 128D & 128DCR Plus/4 (2) C16 Amiga 1000 (several) Amiga 500 Amiga CDTV Amiga CD32 (several) Commodore PC10-II Commodore PC40 Commodore SLC Hewlett Packard HP85 (2) Spectravideo SV318 Spectravideo SV328 Triumph Adler Alphatronics PC Various pre-1980 video games consoles (too numerous to tally). Cheers, BL ---------------- Powered by telstra.com

25 years, 4 months

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50 pin SCSI to 50 pin centronics

by azog＠azog.org

does anyone have a cable that has 50 pin SCSI on one side and a 50 pin male centronics on the other side? I need to connect an alternate boot disk to my VS 4000/60, and I don't want to mess with the existing drives, and it'll only be temporary while I try to fix my mistake in VMS, so it won't be in a box or anything...

25 years, 4 months

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Kim / Commie keypads

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> > >This RS pad must have a catalog number, though, Allison. Since you've seen it, >perhaps you could provide the catalog number, as the RS meatheads wouldn't know >what a keypad kit was if you asked them. Well while picking up a barrel connector I noticed the Nashua store had it on the wall. I think 270-015 is the catalog number. Sheesh, if I do that might as well sent it to me for installation and labeling. Is it possible to read a catalog these days or has the "go ask the web, thin I don't have to work" mentality taken over? Allison

25 years, 4 months

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Looking for PDP-8..12 in Ottawa/ON/Canada area

by root＠parse.com

Hi folks, I was referred to this list be a gentleman from Ottawa, and he suggested that there might be some PDP-8..12 computers floating around that you folks might know of? I've managed to get a line on 20 X PDP-11/70's in Seattle/WA, but then I looked at how much it would cost to ship :-) Basically, in order of priority, I'm looking for the following: PDP-8/I PDP-8/L PDP-8/S PDP-12 PDP-11/20 Also, I'm looking for schematics, docs, etc... Thanks in advance for your help! Cheers, -RK -- Robert Krten, PARSE Software Devices +1 613 599 8316. Realtime Systems Architecture, Consulting and Training at www.parse.com

25 years, 4 months

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Rescue a system 36

by steve_moser＠parmalat.ca

We have a system 36 #5360, printer 3262-BI and 3 3476 terminals that I would like to get rid of to free up some space. The system was here when I started so I don't know a lot about it, but have found some old documentation. CPU 512K MAG 716MB, it was purchased in June 1986. There is also a bunch of disk and cartridges that I don't have a clue what they are for, but I'm sure anyone interested would know. I am just looking for someone to take it away from our office in Cincinnati, OH. Please e-mail me with any additional questions. Thanks Steve

25 years, 4 months

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Photo equimpent for hardware web pics (Re: Technico (Re: TI Minicomputer?))

by cmcmanis＠mcmanis.com

There were a couple of video capture systems for the PDP-11 series, at USC in the image processing lab we built one that digitized a monochrome camera signal. It worked ok, but even better was the Micron drum scanner (boy I wish I had that puppy hooked up to my 11/34!) You can of course get a cheap digital camera (about $500 will get you one that does 80% of what you need) or you can spend $49 on a scanner and using a regular process camera get nice high resolution pictures of your equipment. Further you can hook some scanners up to classic computers to keep it "all in the family" so to speak, take pictures on a classic camera (I love the Leica) and be even better. --Chuck At 12:36 PM 4/13/2001 -0400, anonymous wrote: >Indeed. I have some machines I want to put up pics of here. All I have is >an inexpensive Sony CCD camera that only does NTSC video, however. My TV >tuner card has a capture function, but the camera has low resolution >and limited dynamic range, and is not very well suited for >detailed pictures of hardware, circuit boards, etc. > >I'm getting a better card, probably an ATI AIW, and I'm open to >recoomendations on a better camera that isn't too expensive. I could go >with a digital camera and a card reader, but I also have a security >application here that requires video capture. > >jbdigriz

25 years, 4 months

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Cyber 910

by broth＠heathers.stdio.com

OK, out of the two Cyber 910's I picked up the other day, I have one good machine that is now booting up to Iris. The problem is getting past the root password. Is ther any way of bypassing it or a hack to gain root access from the console monitor? It does have a 150 Mb Archive tape drive but I have no system software for it. Thanks, Brian.

25 years, 4 months

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My collection

by r.stek＠snet.net

Better late than never... Apple II+ Apple IIe Apple IIc Apple III mono monitor Apple Lisa XL - dealer demo in orig. packing Mac Plus Mac SE 30 Mac LC III Mac Color Classic Coco Coco II Coco III Model 100 portable Vic-20, boxed C-64 PC 5150 PC XT 5160 PC AT PC Jr. - dealer demo in carrying case Portable PC 5155 Datavue 8088 laptop HP 85 ProcTech Sol-20's, 1 w/ Helios II NorthStar Horizon - 2 360k floppies NorthStar Horizon - 5 MB HD IMSAI 8080 w/ NorthStar dual floppies Morrow Decision I w/ HD Godbout CompuPro - Z80 Godbout CompuPro - dual 8085 + 8088 Ithaca InterSystems Timex Sinclair 1000 Sinclair ZX-81 Ohio Scientific Challenger Lobo Max w/ 10 MB HD Epson PX-8 Sinclair Z88 Osborne Executive KayPro II KayPro 10 KIM-1 Synertek SYM-1 TI 99/4 and others I've forgotten about... Most are in storage and haven't seen daylight in 2 years, unfortunately. Bob Stek Saver of Lost Sols

25 years, 4 months

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SC/MP Elektor Emulator

by ajp166＠bellatlantic.net

From: Sipke de Wal <sipke(a)wxs.nl> >> And in the UK version IIRC. The version I remember had a PCB with the >> SC/MP (the origial PMOS version) and IIRC the crystal on it, linked by >> ribbon cables (with individual socket contacts on each wire -- no IDC >> connectors :-() to another board with the memory and DIP switches, etc on it. >> >Yep that's the one ! Mine is the original NS design. The NS design used a 110baud TTY no switches save for reset. Allison

25 years, 4 months

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My Collection

by ajp166＠bellatlantic.net

>> Does anyone on the list run RT-11 still other than Megan Gentry? Me too, I have it and it's a really good OS. Allison

25 years, 4 months

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VaxStation 2000 PSU info needed

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >> To start with the switcher in question is 1987 design maybe earlier. >> The MV2000 was available in 87 or 88 if memory >> serves. And even if I'm wrong it's very definitely pre1990. >> >AND there's no reason to believe that because it behaves as I described, it's >because of an obsolete design. It's quite likely that they didn't want the >supply kicking on unless there was a load. PC supplies were designed that way >... of course that was in 1980 ... PC supplies would overvoltage and crowbar there was no intelligence in their design or applied to it. >From what I observed, the DEC rotatin memory subsystems were >ALWAYS of old technology, i.e. used SMD after nobody else >would ship SMD devices, and didn't start to use SCSI until forced >to do so by market demand and not until long after third-party >competitors had been beating them in the marketplace. Whats wrong with SMD? It was better than SCSI-1, and SCSI-2. And there was no third party standard for SCSI at all until the late 80s. Even then DEC had far faster technologies and regarded it for low end slower systems. >It was EMULEX, IIRC, that forced them out of the '70's with their >disk drive subsystems. I wasn't aware that DEC ever built a disk >drive. Their products seemed to me to be rebadged and Then you arent aware. All the RA8x and 9x were DEC as were the initial RZ2x series and a long list of others. They did off the shelf stuff too but then that was usually for the smaller packaged systems or where time was a market driver. >repackaged drives from other makers, only at 10x the current >price. Those DEC labels were surely expensive. Much of it markup but also a fair amount getting the vendor to fix errors spotted by DEC, getting it to comply to spec and in many cases getting it to pass FCC. Allison

25 years, 4 months

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Belle & Howell Apple II

by jss＠ou.edu

I have recently found an Apple II that is a bit interesting. Its color is very dark gray, almost black, and so is the color of the matching Disk II. The labels on both the Apple II and Disk II say "Made for Belle & Howell by Apple Computer, Inc" and have the logos of both companies. Is this a special machine in any way? I don't have it currently. I found it yesterday and have not yet contacted the institiution that owns it to see if is available (though it most likely is). -- Jeffrey S. Sharp jss(a)ou.edu

25 years, 4 months

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DC-30 tape ??

by rigdonj＠intellistar.net

I just found several boxes of "Verbatim DC 30 Data Cassette" tapes. I've never seen these before. Does anyone knwo what they're for? In their boxes, they measure 4 3/8" x 2 7/8" x 5/8". The look like an over-sized audio cassette tape. They're driven by the tape hubs and the case does not have a metalbase plate like that found on most data cassettes. There is a note on the back of the tape saying "Do not to record on this side. Side B has a 1600 FCI Pre-recorded clock track for tape speed control". Joe

25 years, 4 months

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HP Rack mount monitor ??

by ip500＠home.com

Just picked up a neat looking HP 6947A "Raster Display" .. looks like a rack mountable monitor to me or ... is it some sort of X/Y plotter/graph display w/o video capabilities? Manual copy would be great too. Any info appreciated, Craig

25 years, 4 months

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Chips and SBCs(Re: Technico (Re: TI Minicomputer?)

by fmc＠reanimators.org

Eric Chomko <chomko(a)greenbelt.com> wrote: > Is the Apple Z-80 coprocessor boards the so-called "CP/M boards"? Some, like the PCPI Applicard, may have more claim to SBCness than others; the Applicard doesn't rely on the Apple for much other than power (unlike the Softcard-alikes which used the Apple's RAM) and I think I remember PCPI demoing one at Applefest in Boston in 1982 by way of having the card out on the table with a 9V battery hooked up to it via clip-leads. Mind, I can't remember what it was actually doing (if anything) without any I/O hooked up to it. -Frank McConnell

25 years, 4 months

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Test

by jhfine＠idirect.com

Testing

25 years, 4 months

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CP/M for AES 7100/Lanier Dedicated Word Processor ???

by claudew＠videotron.ca

Hi I picked up one of these AES/Lanier 7100 a few weeks ago. It's in near perfect shape and boots to what looks like a word processor. The WP software thats in there right now is on 5 1/4 hard sector disks... I have heard rumors that a version of CP/M was available for this machine. Anyone ever heard or seen this or would by any chance have a copy? Claude Canuk Computer Collector http://computer_collector.tripod.com

25 years, 4 months

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Chips and SBCs(Re: Technico (Re: TI Minicomputer?)

by pete＠dunnington.u-net.com

On Apr 16, 8:35, Ethan Dicks wrote: > Some of > that is the actual artwork for the Elf-II PCB. I know I can buy iron-on > transfer paper, but I've never made a double-sided PCB at home, only > single-sided (and then, only with rub-on transfers). Has anyone out there > ever made double-sided boards at home? Yes, plenty of times. I use tracing film, but I suppose you could use transfer paper if you're careful (I've never tried it). I make sure I mark one of the corners and one edge of the layout exactly in registration on both layers. When I expose the PCB, I make sure the raw PCB is exactly lined up on that corner and edge for both exposures (both sides). It helps if the raw PCB is carefully cut! Transfer paper might actually be easier if oyu can do both sides at once, but you'd have to make sure it didn't stretch or warp. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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VaxStation 2000 PSU info needed

by ajp166＠bellatlantic.net

To start with the switcher in question is 1987 design maybe earlier. The MV2000 was available in 87 or 88 if memory serves. And even if I'm wrong it's very definatly pre1990. Dec often used standardized designs for years despite technology. Regarding you comment on rotating technology.. your wrong. The biggest problem is that often the older technologies were kept available too long or in service too long. Add to that usually at least 50% of the rotating memory was not even DEC to start with. Look at the DEC designed products. Allison ------Original Message------ From: "Richard Erlacher" <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org Sent: April 16, 2001 3:03:26 AM GMT Subject: Re: VaxStation 2000 PSU info needed Back in the early '80's it wasn't uncommon for switchers to malfunction, or, if designed somewhat better, to fail to function at all, if no load was present. This is consistent with DEC's practice of putting out 10-year old technology in its "current" products. Their rotating memory products were always at least one, and often three, generations behind the "current" generation in other makers' products. That ensured maximal profits for DEC shareholders and maximal bonuses for their execs, though it also ensured last-generation performance or less for their users. Dick ----- Original Message ----- From: "Brian Chase" <bdc(a)world.std.com> To: <classiccmp(a)classiccmp.org> Sent: Sunday, April 15, 2001 2:01 PM Subject: Re: VaxStation 2000 PSU info needed > On Sun, 15 Apr 2001, Richard Erlacher wrote: > > > Is anbody intimate enough with the VaxStation 2000 to provide a couple > > of details? Here's the deal: > > Not really intimate with them, but I have used them to run NetBSD/vax and > Ultrix. > > > I snagged a VaxStation 2000 box some time back, mainly for the PSU. > > It turns out that it has a couple of lines, on the 9-pin MOLEX main > > power output connector, the purpose of which is not clear. There's > > one that seems to float at around -6 Volts DC, and another that floats > > at high-impedance, yet, when the one at -6 is pulled to 0 (gnd) > > through a resistor, the previously floating one suddenly has 9 volts > > or so. Do these have a specific purpose that might serve some need > > I'm likely to encounter, or are they just for the DEC folks' features? > > Is there any way to capitalize on them, or should I just leave them > > alone? All I'm after is fairly normal power output, with the added > > benefit of a fan and switch. The +5 and bipolar 12's seem to work > > fine. Spec's would be handy too, e.g. how much current can be drawn > > from each of the supplies and, perhaps from all of them at once? > > I think (I'm not positive) this may be related to the nature of the power > supply. I've not actually used them for anything but powering the > components which normally make up a VAXstation 2000. They do have some > interesting qualities, the main one being that they don't work right > unless they've got a load on them. > > I've made the mistake of trying to run one diskless--which doesn't work. > As soon as you add a disk drive, then the system goes through it's power > up sequence without problem. DEC did make a diskless version of the > VS2000, but it had a big resistor board that plugged into the internal > drive power cable. > > I'm sure someone here can address the actual reasons why the power supply > behaves like this. I think it's a trait of older switching PSUs. But > hopefully my "systems guy" observations provide some useful clues. > > -brian. > --- Brian Chase | bdc(a)world.std.com | http://world.std.com/~bdc/ ----- > Being an open and honest guy, in the big "Occupation" box in the center > of the sheet, I had written the same thing that's on my business cards. > "Internet Legend". -- K. > >

25 years, 4 months

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Tektronix 8501 Data Management Unit

by jm_chu＠hotmail.com

An HTML attachment was scrubbed... URL: http://www.classiccmp.org/pipermail/cctalk/attachments/20010416/06c455fc/at…

25 years, 4 months

1
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NeXT Cube Computer Back Cover

by reyes＠orion.ae.utexas.edu

I have a NeXT Computer cube. On the back of the Cube it has a NeXT logo and under the logo is in bold "Computer". I was told that some cubes have instead of "Computer" either "Cube" or "Turbo". Is this true? Did the text on the back of the NeXT cube change over time? Can anybody point out any other differences on the back cover of the NeXT cube. Reuben

25 years, 4 months

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(fwd) Computer collection for sale in the UK

by bill_r＠inetnebr.com

If anyone is interested, please contact this individual directly. I have no connection with this except that he found my address on my "classic computers" web page. On Sun, 15 Apr 2001 18:09:07 +0100, "gen" <gen(a)webline.plus.com> wrote: >Hi there > >I got your email address from the internet. > >I have a substantial UK collection of 'antique' computers, mostly 'first >editions' of systems such as Apple, IBM, Sirius, Apricot, Macintosh, Epson, >etc. These are not old and used, they are in pristine condition in their >original boxes with manuals, software & literature. Would you know of >anyone >interested in buying it? I am based in the UK. > >Regards > > > > > > > Bill Richman bill_r(a)inetnebr.com http://incolor.inetnebr.com Home of Fun with Molten Metal, technological oddities, and the original COSMAC Elf computer simulator!

25 years, 4 months

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Kim / Commie keypads

by ajp166＠bellatlantic.net

Foo, mine was used, is used and works. It was dirty enough to require a trip through the dishwasher though. It wasn't to hard to open and wipe the contacts afterwards. The RS pad (special catalog item likely not their manufacuture) would work as would many others. Maybe I'm just more resorceful that others. Either that or rather that grouse about it I just do it. Allison ------Original Message------ From: "Richard Erlacher" <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org Sent: April 16, 2001 2:14:29 AM GMT Subject: Re: Kim / Commie keypads Well, in that case, since the user manual is posted at the URL included in the original post, and you'll see it's not the "usual" scanning matrix being a 7x3 or some other obtuse pattern, and not easily physically replaced with a run-of-the mill matrix keypad. Since you have a KIM-1, you know what the size is, and you know what the Radio Shack product is. If the RS product would fit in place of the original perhaps you could indicate that. If your keypad is still working, it's clear you haven't used it much. Just let us know ... don't equivocate. Putting a Radio Shack product on a KIM-1 kind-of makes my skin crawl, but if it will fit closely as a replacement for the original, and if that's what's wanted, why not? The designers did provide access to the scanning inputs, however, so an external and much more comfortable and durable keypad could be put in place with little hassle. If the desired solution is to use a serious keypad the externally applied replacement can be of whatever size is desired. It occurred to me over the Easter dinner at Mom's that one could use the top segment of the capacitive switches by situating them over a perfboard with wire leads soldered to it. The somewhat conductive pad on the lower surface of the key will close the circuit just fine if a bit of aluminum foil is rubber-cemented to its conductive surface. If it seems I don't know what sort of switches are in a PC keyboard, that's because I don't, BTW. The only PC-targeted keyboard I've disassembled has been that MicroSwitch model. That should, however, make the surplus PC-keyboard's switches useable. They're mechanically and ergonomically decent enough. Dick ----- Original Message ----- From: "ajp166" <ajp166(a)bellatlantic.net> To: <classiccmp(a)classiccmp.org> Sent: Sunday, April 15, 2001 4:16 PM Subject: Re: Kim / Commie keypads > From: Richard Erlacher <edick(a)idcomm.com> > >If that were true, this entire thread would not have occurred. The > problem with > >most of these matrix keypads in a single, solid, monolithically-molded > assembly > > > NO it's someone that hasn't an idea how or what it is. RS sells a > universal > keypad kit (not usually stocked in the stores) that would work fine. One > from a calc would also work. If someones is doing museam restore that > would be harder. > > Besides I obviously don't know anything about it even though I have a > KIM-1 > in working condition. > > Allison > > > > >

25 years, 4 months

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Collection list (just for phun) and wants

by RCini＠congressfinancial.com

Hello, all: Just to throw my collection list into the ring. I'm just listing machines only. I have accessories and software to go with them. Apple: II+, III (with ProFile hard drive), FatMac (with floppy-based hard drives), SE/30, IIci, IIgs, Mac Portable Commie: 4032, 8250, 2031lp, 1541, 1515, 1525, VIC20, C64, KIM-1 (3!) Digital: Complete 11/34a system with lots of spare boards (2 RK drives and one RX02), MicroVAX-I Tandy: Model I (4k and 16k), EIs, complete Model 100 with DVI IBM: Original PC with expansion chassis (and 20mb hard drive), Datamaster (and spares) NorthStar: Horizon and lots of boards. Never able to get it to work. Other: AIM65 Rich

25 years, 4 months

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CP/M for AES 7100/Lanier Dedicated Word Processor ???

by claudew＠videotron.ca

Hi I picked up one of these AES/Lanier 7100 a few weeks ago. It's in near perfect shape and boots to what looks like a word processor. The WP software thats in there right now is on 5 1/4 hard sector disks... I have heard rumors that a version of CP/M was available for this machine. Anyone ever heard or seen this or would by any chance have a copy? Claude Canuk Computer Collector http://computer_collector.tripod.com

25 years, 4 months

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Latest Acquisition: Imlac PDS-1D

by uban＠ubanproductions.com

Opps, I made a typo on the URL... Please try this one. http://www.ubanproductions.com/imlac.html --tom >Well, I said that I would put up some more pictures of one of my Imlacs >a couple of days ago, but I got delayed a bit, so here they are now: > >http://www.ubanproductions.com/imlacs.html > >--tom

25 years, 4 months

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(uk) looking for atari 400/800

by pete＠dunnington.u-net.com

Hi, Stu. On Apr 15, 21:09, Stu wrote: > any books, bits, peripherals. > Also, looking to give away some old apricot kit to anyone who wants it. > Cheers. What sort of Apricot kit? If it's something like a Xen Xi, I'd be interested. Wasn't there something else you and I were going to trade a while ago? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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Kim / Commie keypads

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >If that were true, this entire thread would not have occurred. The problem with >most of these matrix keypads in a single, solid, monolithically-molded assembly NO it's someone that hasn't an idea how or what it is. RS sells a universal keypad kit (not usually stocked in the stores) that would work fine. One >from a calc would also work. If someones is doing museam restore that would be harder. Besides I obviously don't know anything about it even though I have a KIM-1 in working condition. Allison

25 years, 4 months

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ENIAC

by Demon02554＠aol.com

>I talked breifly in a hospital to a lady who had >worked on the >ENIAC. It was almost a religious experience. > >-- >Jeffrey S. Sharp >jss(a)ou.edu i agree whole heartedly...but the promise of those parts is incredible... Robert Cobbins

25 years, 4 months

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Collection list (just for phun)

by ajp166＠bellatlantic.net

List it be: All system listed are fully operational with perpherals. Loose boards and spares not included nor are PCs even though many are classic. Allison S100 based systems ------------------------------- Altair 8800 Processor Tech SOL NorthStar* Horizon (2) CCS2200 Compupro Z80 Explorer 8085 Killer an S100 machine of my design (z80s, 8085, 8048) Z80 based Packaged or Single board based Systems ----------------------------------------- AmproLB Kaypro 4/84 NS* Advantage Epson PX-8 laptop Visual 1050 (2) DEC Vt180 (several) Tandy TRS-80 Micromint SB180 Single board computers ---------------------------------- Kim-1 Motorola 6800 D1 SC/MP SC/MP-II NIBBLE (tinybasic) RCA COSMAC ELF Intersil 6960 6100 sampler (cmos PDP-8) IMSAI IMP48 Technico Superstarted board TI9900 cpu MultiBUS based ------------------------ Hurikon ml92 (z80 based) Intel MDS800 MISC systems --------------------- TI99/4a (3) tandy COCO-III PDP-11 based systems ---------------------------------- DEC Pro350 DEC Pro380 DEC LSI 11/03 DEC PDP 11/23 DEC PDP11/23B BA11VA with TU58 and 11/23 VAX based ---------------- MicroVAX-II BA23 MicroVAX-II/GPX BA123 MicroVAX 2000 (3) MicroVAX 3100/M10E (3) MicroVAX 3100/M76/spx PDP-8 Based -------------------- Decmate-III (2) PDP-8/f Terminals ------------- Vt100 Vt125 Vt320 Vt340 VT1200 H19

25 years, 4 months

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ENIAC

by Demon02554＠aol.com

i recently had the pleasure of meeting someone who once worked on ENIAC...aside from hearing some stories about the computer he also has several tubes from it laying around which, if he can find, will soon be mine.... --Robert Cobbins

25 years, 4 months

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VaxStation 2000 PSU info needed

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >I snagged a VaxStation 2000 box some time back, mainly for the PSU. It turns >out that it has a couple of lines, on the 9-pin MOLEX main power output >connector, the purpose of which is not clear. There's one that seems to float ///snippage//// I have three working plus a TK50 in an external box (same box), if that isn't enough I must have 6 or so of the PSUs that I use for "projects". The PSU wants a 10W load minimum on both the +5 and +12. It's rated 160W OUTPUT. It easily runs a P166 with options. The +12 is heafty enough to run a MAXTOR2190 with reserve figure it for not less than 4A. The remainder is on the +5, If memory serves it's good for 12A++. The minus voltages are for RS232 type use figure them for .5A. The "floating line" is powerfail and is open collector. I rarely use it. Have fun

25 years, 4 months

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FT: 8080A & TI 9918

by cmcmanis＠mcmanis.com

Speaking of classic chips, I've got an 8080A and a TI 9918 I'd be willing to trade for a DEC BCC08 cable (VAX 9 pin to female DB25 pin cable). --Chuck

25 years, 4 months

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Kim / Commie keypads

by ajp166＠bellatlantic.net

-----Original Message----- From: Ross Archer <dogbert(a)mindless.com> >I think the outboard keyboard & case idea is excellent, and a fun "hour at a >time"kind of project to tinker with whenever bored. :) I already took apart one >broke >keyboard in my boneyard -- it was a membrane type. <:-( The keyboard was the common type similar if not the same as most calculators of the time used. Simple XY matrix of switches and easily replaced. The biggest problem of the keypad is the materials didn't age well over time. Many still work well. Allison

25 years, 4 months

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Toshiba 3100e/40

by kginav＠earthlink.net

I just received a 3100e/40, and have installed the setup program, but want to install a simple word program, but am having trouble doing it. Does anyone know the steps which I have to go through to install such a program?

25 years, 4 months

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Ya know, I really dislike TK50 drives...

by dburrows＠netpath.net

>> What did you in are the sensors on the 2 tape rollers. If either of the >> rollers stick in either direction the drive decides it does not know where >> on the tape it is and shuts down. I use a marker on the top of the rollers > >I assume these are the 2 rollers, about 1" in diameter, either side of >the head assembly. Correct. > >I've pulled a TK50 to bits (non-destructively), and the front roller >doesn't seen to have a sensor on it. It does appear to have a height >adjustment, which would not be the thing to twiddle. > >The rear roller has a slotted disk + optoswitch at the bottom end. I >assume this is the sensor you are refering to. Yes but I am sure the front one has a sensor also since the slightest heasitation there also shuts it down. I have not taken the time to find a front sensor but it must have one. > >> to determine which roller is causing the problem. Then just watch the marks >> while loading a tape. >> >> Don't feel bad - I have gone through over a dozen drives to get good ones >> and the biggest cause failure are those roller bearings. > >Is it possible to replace the bearings? I've not attempted to dismantle >the senosr (yet!), but it looks possible. Of course after doing that >you'd probably had to do a tape path and head alignment (which could be >'interesting')... The rear one is not bad but the front one does involve some alignment. Again I have not taken the time. I did try lubricating the top bearings with a syringe and still had problems. I then removed it and did the bottom bearing. It ran free then but I had alignment problems and no alignment tape or info. At that point even with over a dozen drives on the way to scrap metal it was not worth any more time to me. Dan

25 years, 4 months

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My Collection

by mcguire＠neurotica.com

U of M as in Maryland? I'm in Laurel. :-) So far I've found endless fascination in chips and power transistors. But, the most unbelievably fascinating thing that I've seen in that scope was something I thought would be boring...a blown tungsten lamp filament! I just did some quick scans of some of the electromicrographs I've done lately. They can be seen at http://www.neurotica.com/sem/images if you're interested. The blown tungsten lamp filament pics are filament-1.jpg and filament-2.jpg. -Dave McGuire On April 13, Jason McBrien wrote: > That's SUPER Impressive. What do you take pictures of? I'm always hoping to > find one of those at U of M property depot, but the closest I've seen is a > fetal ultrasound machine :) > > ----- Original Message ----- > From: "Dave McGuire" <mcguire(a)neurotica.com> > To: <classiccmp(a)classiccmp.org> > Sent: Friday, April 13, 2001 2:39 PM > Subject: Re: My Collection > > > > > > I got motivated and took a few pics of it just a few minutes ago. > > They can be seen at http://www.neurotica.com/sem if you're interested. > > SEMs are some of the coolest devices ever put together, in my opinion. > > > > -Dave McGuire > > > > On April 13, Tony Eros wrote: > > > You've got an electron microscope? Cool! How small do those things > get? > > > > > > -- Tony > > > > > > At 11:51 AM 4/13/2001 -0400, you wrote: > > > >On April 13, Jerome Fine wrote: > > > > > Does anyone on the list run RT-11 still other than Megan Gentry? > > > > > Do you tinker with the operating system code at all? Does anyone > > > > > care about the RT-11 Operating System? > > > > > > > > I care about it; I like it quite a bit. I have a Micro 11/73 > > > >running v5.4, and a Kevex X-ray analyzer (an accessory to the electron > > > >microscope) that has a pdp11/73 in it that runs RT-11. > > > > > > > > > > > > -Dave McGuire > >

25 years, 4 months

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DECmate II stuff

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> > Yes, I have CP/M and the full WPS. It's OS/278 I'm looking >for, though I had thought there were one or two others that ran on >the DECmate II as well. I could be wrong there though. OS/278 is on uu.se archive if memory works. thats the only other I know of other than PS/8 which is the realtime version of OS/8 and that would take work to run on DECmate. There may be others, I can't be certain. On the other hand writing an OS for PDP-8 would be interesting as the reatime monitor and such are all around as source. Allison

25 years, 4 months

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My Collection

by mcguire＠neurotica.com

On April 13, Jerome Fine wrote: > > I care about it; I like it quite a bit. I have a Micro 11/73 > > running v5.4, and a Kevex X-ray analyzer (an accessory to the electron > > microscope) that has a pdp11/73 in it that runs RT-11. > > Jerome Fine replies: > > I sounds like this is now strictly for hobby use. Not exactly. I've several monetary offers in-hand for analyses for when I finish getting it connected to the microscope. As far as I can tell Kevex shipped analyzers in this configuration until just a couple of years ago. Now their newer products are based around a Windows PeeCee that takes over twice as long to run a spectral analysis on a sample as their previous [J11 and embedded Z8000] design did. > Do you have any non-DEC > boards? What is the interface between the PDP-11 and the microscope? I have tons of them. I assume you mean in the Kevex analyzer. ;) The analyzer consists of a KDJ11 board, a third-party disk controller board, a graphics board, and a bunch of parallel I/O ports. It connects to a custom backplane containing an embedded Z8000 data cruncher, which in turn connects to a NIM bin which contains the analog front-end and detector interface and the A/D converter stuff. The detector attaches to the rear of the microscope chamber in an accessory port. > How does RT-11 perform? Are there any enhancements that you could use > at this point? It performs wonderfully. The only thing I'd like better is if it [the control software] were networkable, but since most of it talks directly to the graphics board in the qbus backplane, I doubt that'd be a likely hack candidate. The unit isn't old enough to be able to get the source out of Kevex for hobbyist use, since it's still a supported model. -Dave McGuire

25 years, 4 months

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Chips and SBCs(Re: Technico (Re: TI Minicomputer?)

by pete＠dunnington.u-net.com

On Apr 14, 14:25, Dave McGuire wrote: > On April 13, Eric Chomko wrote: > > Interesting regarding chips and SBCs. Who collects them, other than > >Allison? > > I collect SBCs, eval boards, and trainers. I find that, if > operable, they're a wonderful way to learn the architecture of a given > microprocessor, and an excellent way to compare architectural features > and shortcomings. Thanks for reminding me -- I have a 2901 trainer developed by the staff at York University, which was used for Micro Architecture Design courses until a few years ago. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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Collection list (just for phun) and wants

by pete＠dunnington.u-net.com

On Apr 14, 11:36, Don Maslin wrote: > On Sat, 14 Apr 2001, Pete Turnbull wrote: > > I didn't know about a proprietary OS, I've > > only seen p-System on them, but I think you could get CP/M-68K. I met > > someone who claimed to have CP/M-68K for a Sage but when pressed, he > > couldn't find the Sage version. > > I have it as a 3 DSQD disk set in TeleDisk image form. Hmm... the Sage is in the "heap on the shelves that need sorted" at the moment, and I haven't time to do the sorting. But I'll file that reference for the future :-) Thanks, Don! -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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DECmate II stuff

by ajp166＠bellatlantic.net

At last memory there was the OS/278 (OS/8 for decmates) on I think it was uu.se. There was cp/m-80 for it and of course WPS which if you had all the optional software for it included a list processor, spreadsheet, and I forget the other applications. Allison -----Original Message----- From: Jeff Hellige <jhellige(a)earthlink.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Saturday, April 14, 2001 1:36 PM Subject: DECmate II stuff > Since we have so many DEC enthusiasts on this list, I was >wondering if anyone had any of the OS's for the DECmate II on RX50 >disks? I have WPS and the APU board with CP/M but would like to get >some of the other OS variants for the machine. Other than the APU >option, it also has both the hard disk and color graphics option >boards. Was there ever much of anything that took advantage of the >color graphics board? > > Thanks > Jeff >-- > Collector of Classic Microcomputers and Video Game Systems: > Home of the TRS-80 Model 2000 FAQ File > http://www.geocities.com/siliconvalley/lakes/6757 >

25 years, 4 months

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My Collection

by mcguire＠neurotica.com

Very impressive level of completeness, here. Bravo! -Dave On April 12, Musicman38 wrote: > Here's a partial list of my collection. > I have many more just not cataloged yet.. > My Favorite is the Original Commodore Pet 8K, > and Original Osborne 01 Tan case.. > All my computers are working with the exception of 2 or 3.. > Phil... > > Apple 2C Mint Monitor, Prtr,Manuals > Apple 2GS Mint Prtr,Monitor,Drive > Apple II Mint Assorted cards > Apple IIe Mint 80 col card > Apple IIe Mint DuoDisk,SCSI,Manuals > Apple Iie Platinum good Asst Cards > Apple II-plus dead Assorted Cards > Atari XE Mint Kybrd, lots games > Atari 400 Mint Many Extras + Carts > Columbia XT Portable Mint 10 Meg Hard Drive > Columbia XT Portable Dead Dual Floppy drives > Columbia XT Portable Good Dual Floppy > Columbia XT Portable Good 20 Mag HD > Corona Portable XT VGood Dual Floppy > Commodore 128 Mint Mint, Floppy, Printer > Commodore 128 Good Missing 2 keys works > Commodore 128 Ukwn Not Tested > Commodore 16 Mint Box,Cassette,Manuals > Commodore 16 Mint Box, Manuals > Commodore 64 mint Box,Manuals > Commodore 64 Mint Box,Manuals > Commodore 64SX Exec Mint Runs great > Commodore 64SX Dead Very Clean > Commodore 8032 vgood 32K Ram > Commodore Amiga 500 Mint Stock > Commodore C128D Mint W/Kybd > Commodore C128D Dead W/Kybd > Commodore Pet Good > Commodore Plus/4 Mint Box, Manuals > Commodore Plus/4 Vgood Box, Manuals > Commodore Plus/4 Mint In Box w/Manual > Commodore Vic-20 M1 Mint Box, Manuals > Commodore Vic-20 M2 Mint Box, Manuals > Compaq Portable XT mint Dual Floppy > Compaq Portable XT Mint Dual Floppy > Compaq Portable XT Good 10 MB Hard Drive > Compaq Portable XT Plus Dead 10 MB Hard Drive > Compaq Portable II 286 Mint 20 MB Hard Drive > Compaq Portable II 286 Mint 20 MB HD & Modem > Franklin Ace 1200 Mint Dual Drive, Manuals > IBM PC-Junior Mint Monitor, Expanded > IBM PC-Junior Mint Monitor > IBM PC-Junior Ukwn > IBM PC-Junior Ukwn > IBM Portable XT 5155 VGood Hard Drive, Floppy > IBM PC-XT VGood Dual Floppy,10MB HD > IBM PC-XT Mint Color,HD,20MB > Kaypro 1 Vgood Works Perfectly > Kaypro 1 Vgood Manuals Software > Kaypro 10 Good Bad Hard Drive > Kaypro 10 Vgood Works Fine > Kaypro 10 Mint Perfect all Books/Sftwre > Kaypro 16 Vgood Work Fine > Kaypro 16-F Mint Dual Floppy - Rare > Kaypro 2 Vgood Manuals, SOftware > Kaypro 2X Good Mint CP/M & Manuals > Kaypro 4-84 Mint Carrying Case > Kaypro II Mint Manuals, Carry Case > Kaypro II Good Works OK > Laser 128 Vgood Manual > Mattel Aquarius Mint Manuals, Cassette > Mattel Aquarius Good Manuals > Mattel Aquarius Mint Boxed w/All Periferals > Osborne 01-A Mint White Screen > Osborne 01-A Mint Green screen > Osborne 01-A Dead Tech Manuals > Osborne 01 Vgood Complete w/Manuals > Osborne Executive Mint Manuals, Software > Osborne Executive Poor Manuals, Software > Radio Shack CoCo 1 Good 4K,Gray,Chicklet keys > Radio Shack CoCo 1 Mint 16K, Manuals > Radio Shack CoCo 1 Good 16K Ram > Radio Shack CoCo 2 Mint 32K Ram, manuals > Radio Shack CoCo 2 Good 32K Ram > Radio Shack CoCo 2 Mint 64K Ram, Newer Kybd > Radio Shack CoCo 3 Mint 64K RAM > Radio Shack MC-10 Mint Box, Manuals,PS > Radio Shack MC-10 Mint PS > Radio Shack Model 1 Dead > Radio Shack Model 1 Mint Level II Basic 16K RAM > Radio Shack Model 100 Vgood Manual > Radio Shack Model 102 Vgood > Radio Shack Model 4 Good > Radio Shack Model 4P Mint Manuals, Software > Radio Shack Model 4P Good > Tandy 1200FD Vgood > Texas Instruments 99/4A Mint Silver/Blk > Texas Instruments 99/4A Mint Beige/Tan > Texas Instruments 99/4A Mint Mint in Box, Manual > Texas Instruments TI99 Mint Silver/Blk > Texas Instruments TI99 Mint Box,Manuals Beige > Texas Instruments TI99/4A Good Beige/Tan > TI-Expansion good Expansion Box Loaded > TI-Expansion & Manuals Mint Manuals, Everything Loaded > Timex 1000 poor Works > Zenith Z170 Mint Manual, Very Clean > Mac SE/30 Mint Clean, HD, SCSI > Mac Plus Vgood Clean > Mac Plus Vgood Clean > Mac II LC Vgood Kybds > Mac SE Vgood Clean > Mac Laptop Bad Clean > Mac 512 Vgood Clean > Mac Classic II Mint Clean, SCSI HD >

25 years, 4 months

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Collection list (just for phun) and wants

by pete＠dunnington.u-net.com

On Apr 10, 19:13, THETechnoid(a)home.com wrote: > I'd like to see some of your lists. I may as well join in. Not all of my collection is accessible, some of it is on the "fix, one day" list, and it's in no particular order, but here goes: BBC Microcomputer Model B (1 working, 1 not quite, parts for 1-2 more) BBC Microcomputer Model B Plus x 3/4 (needs serious work) Torch Z80 Card x 2 Acorn 6502 2nd Processor Acorn Z80 2nd Processor Acorn Electron Acorn Atom Archimedes 310 Archimedes 440 Acorn R260 Acorn R260 with non-Acorn SCSI (so basically an A540) Apple ][+ Apple //e Apple Mac Plus x 2 (one has a hard drive) Apple Mac IIvx Sharp MZ80K Atari MegaST Exidy Sorcerer Dragon 32 Nascom 2 Commodore PET 2001-8K Commodore 128 (US version) Commodore VIC-20 Amiga 500 (incomplete) homebrew Z8 SBC Sinclair ZX81 Sinclair Spectrum Sinclair Spectrum + Sinclair QL x 2 Sparcstation 1+ Sparc Classic SGI Indigo R3000, "song and dance machine" graphics SGI Indigo R3000, XZ graphics SGI Indigo R3000, Elan graphics Silicon Graphics Indy R4600SC Silicon Graphics Indy R4600SC NeXTstation XT-compatible AT-compatible 386SX-16 486DX-66 486DX4-100 PDP-11/03 x 2 } PDP-11/23 x 2 } but only 2 x BA11 to run them in PDP-11/73 x 2 } PDP-11/34 PDP-11/24 (boards only, no backplane/panel/box) microPDP-11/83 microVax I Vaxstation 3100 WP78 (PDP-8) Sage II Cambridge Z88 Psion Organiser Microwriter AgendA At any given time, between 12 and 18 of these are on the network, which is mostly 10baseT with some 10base2 and 10base5, and to which I'm about to add some FDDI. Also on the net are: HP 1600CM network printer Star laserprinter GatorBox CS a couple of printer server boxes three managed hubs assorted other network devices and lurking in odd places: too many monitors uncertain number of printers probably half a dozen assorted terminals far too many assorted PCBs uncounted keyboards of odd types uncountable disk drives various Zilog boards looking for a backplane 260 drawers of components What I'm lookng for: 1) anything free :-) 2) 1/4 of the Origin 2000 from work ;-) 3) more space 4) more time 5) bottom half of a case for an Acorn Atom 6) fibre optic cables 7) QBus SCSI disk controller 8) TU56 -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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50 pin SCSI to 50 pin centronics

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> >> I've revisited the RS232 signal definitions and can't see one called "busy". I > >Seriously, I guess such printers probably shouldn't be called 'RS232' >because they most definitely use some of the hardware handshake lines in >ways that the standard forbids. On the other hand, just about all 'RS232' >devices do that now. There are RS232 lines to arbitrate TX/RX data flow. Though the better Serial interfaced printers not only allowed for this they also used Xon/Xoff serial protocal for buffer management. >I have just picked up the user manual for the DEC Letterprinter 210 >(basically an LA100 in a different box!). There is a table (page 25 in my >edition) that is headed : I have one and it's one very nice printer still. It's used is mostly on the DEC and CP/M systems that didn't support parallel IO or as a connector convenience on my part. All of those systems the driver supports the Xon/Xoff flow control as it was very easy to do. > >'The printer supports the folloing RS232C interface signals > >Pin Source Name Function > >[...] > >11 Printer BUSY Restraint > >[...] ' > >Now, I happen to know that is not part of the official RS232 spec, but it >certainly seems to be a de-facto standard... It is but look at the EIA line there and its name and function. Different name is the problem. It was used for HALFduplex modems to arbitrate flow. The DEC parlance prefered the three wire signaling with signal common and TXD and RXD using xon/xoff flow control. If the connection was used with wider signals then DTR/CTS were added to signal mostly that something was connected. Allison

25 years, 4 months

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My Collection

by mcguire＠neurotica.com

On April 14, John Foust wrote: > At 12:06 PM 4/14/01 -0500, you wrote: > >You and I both Sellam - this is like looking at stuff when we were in grade > >school - like the fly that looked like a monster. Is this machine one the > >large heavy ones I've seen in older books or have they brought the > >electromicrograph machines to a reasonable size? I'd hate to even ask what > >one surplus would set a person back. > > They'll be as easy to get as a PDP, I suspect. From reading the > microscopy mailing list I mentioned a few messages ago, when these > electron microscopes get to be 10-25 years old, people tend > to give them away for the hauling. I wouldn't say that's a universal thing. I personally know of about 30-40 perfectly functional, daily-use SEM installations, NONE of which are less than 20 years old. -Dave McGuire

25 years, 4 months

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Collection list (just for phun) and wants

by pete＠dunnington.u-net.com

On Apr 13, 16:42, Joel Ewy wrote: > Pete Turnbull wrote: > > Sage II > Sage II -- I wonder if that's the same Sage that I'm aware of. [...] > It had an MC68000 and ran it's own proprietary operating system, as > far as I can remember, and a Pascal P system. I remember that it used > some kind of 80 track 5.25" floppy drives I'm sure that's the same one. I didn't know about a proprietary OS, I've only seen p-System on them, but I think you could get CP/M-68K. I met someone who claimed to have CP/M-68K for a Sage but when pressed, he couldn't find the Sage version. > and there was this game on it called > "Kings & Castles." It was just a little metal box with text terminals > hooked up to it, I believe. Yes, it has two (? I can't see it to check) RS232 ports for terminals, a printer port, and an IEEE-488 port. > Every now and then my friend and I talk > about trying to get the thing to run again so we can play that game. Probably not hard. It's a simple layout, it only uses standard ICs, and it's easy to get into and get at the PCB. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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MircoAngelo from SCION

by chomko＠greenbelt.com

Anyone ever heard of it or have one? I pretty sure it was a hi-res graphics system (back in 1980) for S-100 systems. Eric

25 years, 4 months

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8080A & TI 9918

by ajp166＠bellatlantic.net

From: Chuck McManis <cmcmanis(a)mcmanis.com> >Speaking of classic chips, I've got an 8080A and a TI 9918 I'd be willing >to trade for a DEC BCC08 cable (VAX 9 pin to female DB25 pin cable). The cable you can make. 8080As are common enough I have a tube of them as well as NEC8080, 8080AF and a few Intel White ceramic with date codes in the 1975 region. The 9918 however is a bit more scarce. Allison

25 years, 4 months

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Ya know, I really dislike TK50 drives...

by dburrows＠netpath.net

Welcome to TK50 terrorism. The only thing now is to rewind manually. I typically use a battery drill with a Phillips bit. You will find a hole in the center of the PCB directly under the cartridge that exposes a Phillips screw. This is the cartridge drive spindle. On slow speed rewind it back into the cart. with the drill. What did you in are the sensors on the 2 tape rollers. If either of the rollers stick in either direction the drive decides it does not know where on the tape it is and shuts down. I use a marker on the top of the rollers to determine which roller is causing the problem. Then just watch the marks while loading a tape. Don't feel bad - I have gone through over a dozen drives to get good ones and the biggest cause failure are those roller bearings. Dan -----Original Message----- From: Chuck McManis <cmcmanis(a)mcmanis.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, April 13, 2001 8:03 PM Subject: Re: Ya know, I really dislike TK50 drives... >At 04:26 PM 4/13/2001 -0700, Zane wrote: >>Have you powercycled the system and told it to unload the tape? I've seen >>this before, unfortuantly I don't remember what I did to fix it. > >Yup, this was one of my first things I tried. Then running it not connected >to the TQK50. Neither will get it to rewind. > >--Chuck >

25 years, 4 months

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VAX sourcefiles for colour framebuffers

by ajp166＠bellatlantic.net

From: Chuck McManis <cmcmanis(a)mcmanis.com> >Regarding the port-vax development of GPX and SPX support for VAX. I don't >believe it is lack of information, Bruce Lane sent Ragge the complete >technical manual on the frame buffer, rather the problem was motivation. >Ragge has lots of stuff to do and framebuffers are fairly low on the list. I'd forgotten that. Unfortunately many NetBSD users want a canned functional OS and cannot contribute. Ragge has done a lot fo the work and could really use help. Allison

25 years, 4 months

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My Collection

by mcguire＠neurotica.com

On April 14, Russ Blakeman wrote: > You and I both Sellam - this is like looking at stuff when we were in grade > school - like the fly that looked like a monster. Is this machine one the > large heavy ones I've seen in older books or have they brought the > electromicrograph machines to a reasonable size? I'd hate to even ask what > one surplus would set a person back. They're all large and heavy. Because semiconductor and computer technology shrinks constantly, there's a natural assumption that everything else does too, and thus anything that's large is ancient. There's really no way to shrink the vacuum valves, pumps, high-voltage power supplies, and stuff like that...what does shrink is the control electronics, but that's really all. Generally speaking, there have been NO applicable significant advances in the major technologies that make SEMs work in the past 30 years...electron beam generation, acceleration, and steering, vacuum chamber control, phosphorescent electron->photon conversion, and high-speed scintillation detection. Until fairly recently, all new SEMs had huge panels of lights, switches, and knobs. Nowadays manufacturers are shipping SEMs with a power switch and a PeeCee running Windows that does everything between crashes. The average scientist hasn't really embraced this approach, so there's a huge business building around maintaining older-style manual-control SEMs. My SEM does happen to be pretty old, but not too old as SEMs go. It was made in 1981. I have been in contact with the guy who had maintained it under a service contract at its previous installation. He is a former employee of the company that manufactured the unit. He runs a fairly tidy business maintaining only this make and model of SEM within driving distance (he's north of me in Southern PA), he maintains fifty or sixty of them...indicating that a significant number of these 20-year-old instruments are still in service. For your SEM hunting information, count on about a ten-to-one age ratio compared to computer hardware...a 20-year-old SEM would be approximately comparable to a 2-year-old computer. > Maybe Dave can get a photo of his stuff in place and put it in the image > library as well for use to take a look at. I did that yesterday. Have a look at http://www.neurotica.com/sem. -Dave McGuire

25 years, 4 months

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Chips and SBCs(Re: Technico (Re: TI Minicomputer?)

by mcguire＠neurotica.com

On April 13, Eric Chomko wrote: > Interesting regarding chips and SBCs. Who collects them, other than >Allison? I collect SBCs, eval boards, and trainers. I find that, if operable, they're a wonderful way to learn the architecture of a given microprocessor, and an excellent way to compare architectural features and shortcomings. -Dave McGuire

25 years, 4 months

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PDP-11/24 -- BA11-A help needed

by dburrows＠netpath.net

>Is there anyone here with experience working on a PDP-11/24 in a BA11-A >box?? I am trying to more mine from a broken BA11-L to a working BA11-A >and I need some help with where one of the cables from the control panel >goes. > >Anyone?? > >bill One goes to the CPU backplane and the other goes to the power supply. The power supply connector is kind of hidden. You will need to slide the supply out about 1.5 inches in order to see it. I hope you are using a BA11-A that has the H7140-AA (IIRC) in it. IIRC the H7140-CA is only for expansion chassis. IIRC the -CA has only +5 and +/-15v. The -AA has +5, -5, +/-12v, +/- 15 Also be careful using backplanes from expansion boxes in the CPU box of the 11/24. They often have some jumpers on the supply lines ( soldered where the supply wires meet the backplane) that short the 2 sets of +/- supplies. A while back I scanned some stuff that may help you. Poke around ftp://zane.brouhaha.com I am sorry but most of the originals have been destroyed by a fire 2 months ago. Not to mention a LOT of PDP11 equipment at the same time. Dan

25 years, 4 months

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Ya know, I really dislike TK50 drives...

by kees.stravers＠iae.nl

On 2001-04-14 classiccmp(a)classiccmp.org said to kees.stravers(a)iae.nl 8< snip >8 >I am also looking for the pinout of the TK50 connector if anyone >has it. >-tony TUK50 board J1 Connector signals and pin numbering ----------------------------------------------------------------- Pin number Signal name Pin number Signal name ----------------------------------------------------------------- J1-01 Ground J1-14 DR RD CLK L J1-02 WRT Data H J1-15 DR RD CLK H J1-03 WRT Data L J1-16 Ground J1-04 Ground J1-17 Read Data L J1-05 DR CMD H J1-18 Read Data H J1-06 DR CMD L J1-19 Ground J1-07 Ground J1-20 DR Status H J1-08 WRT Gate H J1-21 DR Status L J1-09 WRT Gate L J1-22 Ground J1-10 Ground J1-23 DR WRT CLK H J1-11 Erase L J1-24 DR WRT CLK L J1-12 Erase H J1-25 Ground J1-13 Ground J1-26 Ground ----------------------------------------------------------------- BTW, I am looking for a TUK50 board if anyone has a spare. My 11/84 won't read TK50 tapes. The drive is OK, and sending commands direct to the CSR of the board does not provoke a reaction, so I assume the board is broken. Kees. -- Kees Stravers - Geldrop, The Netherlands - kees.stravers(a)iae.nl http://www.iae.nl/users/pb0aia/ My home page (old computers,music,photography) http://www.vaxarchive.org/ Info on old DEC VAX computers (Mirrors: http://vaxarchive.khubla.com/ and http://vaxarchive.sevensages.org/) Net-Tamer V 1.08.1 - Registered

25 years, 4 months

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VAX sourcefiles for colour framebuffers

by ajp166＠bellatlantic.net

From: Fred deBros <fdebros(a)bellatlantic.net> Does anybody here have the sourcefiles (or a source for them) that drive the SPX and GPX framebuffers of vax 3100 or so vintage (the terminal vt1300 seems to support them too) ? Possibly in ASCII, as I can't read microfiches... I'd like to try my hand at an 8bit xserver on netBSD/vax on these machines. No: port-vax(a)netbsd.org is not a source. I dont believe they ever got it working or at best only tentatively. If memeory serves a lack of information about it was a problem. Allison

25 years, 4 months

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Collection list (just for phun)

by jbdigriz＠dragonsweb.org

Without conducting a detailed inventory: TI: TI 99/4 (1) Currently disassembled, as I received it. TI 99/4A (I'd have to count them all) Enough to build 3 or 4 full systems with loaded p-boxes. Much software, documentation, and literature, including sekrit internal TI software specs, source code, etc. 3rd party hardware and addons eg ramdisk, 128/512K cards, DSDD controller, graphics tablet, barcode reader, p-code, etc. etc. etc. Myarc 9640 Geneve (1) 512K TMS9995/V9938 SBC for TI p-box. Full system includes Myarc HFDC MFM disk, floppy, QIC-02 controller. Multi-tasking OS, 5-6x 4A speed, 4a hardware emulation. Licensed native-mode P-system port specifically for this machine. TI VPU200 (1) This is basically a "luggable" (49 lbs) TM990-100M micro with a 5TI sequencer interface. Options for other TI PLC interfaces and has CRU bus to interface to 990 and 960. Need software and docs. TI 990/1 (1) Intelligent Terminal or Small Business Computer. Needs FD800 or FD1000 disk subsystem and software. Have *ample* docs. TI 990/10 (1) 13-slot chassis, TTL, mapping option. DS10 and DS50 drives on separate consoles. Need software, more docs, tape, drives need *much* work. In 70"(?) 990/4 rack cabinet. Assorted extra boards, cabling, leased-line modems (P202T mostly.) TI 911 VDT's (3) I'm hoping to get an Explorer real soon now, along with a lot more TI stuff. 10-year-rule PC's: Televideo 1605C (1) Disassembleed to install HD and repair keyboard Runs DOS 5.0 just fine. Compaq Deskpro 386s (1) I believe this may be one of, if not the first, Compaq 386 desktop model. KLH 195 (1) 286-12 AT clone with VGA graphics, 4Mb RAM. Assorted Tandy 1000's (3) Commodore Colt (1) bad mobo Commodere PC (2) unknown working order I have stacks of 386 and 486 machines, of course, which I mostly rob for parts, or upgrade to socket 7, having plenty of Pentium mobos lying around, but these are not classic yet, even if they are thoroughly "obsolete". Others: Altos 8000 (1) HD model, have docs and schematics, some software. Rums MP/M. C64 (1) have a couple of C64 floppy drives and monitor, too, can't remember the models. Commodore/Diablo daisywheel for CBM 8032, I think, plus parts unit. Apple IIc (1) Had an Apple IIe but I just sold it to some kid for $10. Apple Mac SE (1) flaky ps., w/ImageWriter, mice,3rd external 800k floppy, no HD, much lit, all docs except oper. manual, no software. Probably more that I'm forgetting. Wanted: TI computers, peripherals, software, docs. Interested in all kinds of stuff, but that's what I focus on. -- Computers are useless. They can only give you answers. -- Pablo Picasso Paul never tried to build or restore one. -- jbdigriz

25 years, 4 months

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Technico (Re: TI Minicomputer?)

by ajp166＠bellatlantic.net

From: James B. DiGriz <jbdigriz(a)dragonsweb.org> > >A corporate budget backing you up would help. Only a little. It was the chip level microprocessor and memory marketing arm. Total number of people about 100. Allison

25 years, 4 months

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Preferred method of archiving CBM disks

by rcini＠optonline.net

I have a bit of down time, so I wanted to make archival copies of the Commodore disks that I have. I have an old copy of X1541 which I was going to use, but I wanted to take a quick survey and see what other methods list members use? Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

25 years, 4 months

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VAX sourcefiles for colour framebuffers

by fdebros＠bellatlantic.net

Does anybody here have the sourcefiles (or a source for them) that drive the SPX and GPX framebuffers of vax 3100 or so vintage (the terminal vt1300 seems to support them too) ? Possibly in ASCII, as I can't read microfiches... I'd like to try my hand at an 8bit xserver on netBSD/vax on these machines. No: port-vax(a)netbsd.org is not a source. Fred

25 years, 4 months

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Heath/Zenith stuff

by mmcfadden＠cmh.edu

If there is enough interest I might make a trip from Kansas City to St. Louis to visit some friends and pick up the load. I bet I could take my wife's Ford Aerostar extended cab. Mike mmcfadden(a)cmh.edu

25 years, 4 months

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Maryland (was Re: My Collection)

by Demon02554＠aol.com

In a message dated 4/14/01 8:35:26 AM Eastern Daylight Time, tony.eros(a)machm.org writes: << I'm in Delaware, so the neighborhood's not that much bigger! -- Tony >> hey hey im in Northern Virginia.... Robert

25 years, 4 months

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Ya know, I really dislike TK50 drives...

by cmcmanis＠mcmanis.com

Well in classic style I was restoring a MicroVAX II (and this one is a true classic as its in the BA23 pedestal case and everything). It is still missing a couple of bits (like the brackets that keep the BA23 in side the plastic area of which it has only one, apparently its previous owner liked being able to pull out and re-insert the BA23.) So it also has a TK50 and I took it apart, blew out the dust checked it over, and even loaded a test tape (had standalone backup on it) and booted it and removed it. Great, a working TK50. So I put what alleges to be a Ultrix 2.2 install tape, and boot that. It boots! Yippee, and then rewinds the tape (I've got no idea how to install Ultrix and typing 'install.1' got me a screen that said "no devices to install on" :-(. So I figure it should at least see the tape and I look back at the TK50 and it thinks its unloaded (green light on, red light off) I pull the handle up and the red light comes back on, cartridge comes half way out. I know that the solenoid has re-engaged for some reason so I push the cart back in and do the unload fan-dang-go (you know push the putton in and out, per the manual, six times) whiz, whirr, whiz, whirr, ka-chunk. Green light comes on. I pull the handle and the red light comes on again. So shut everything off, pull the tape unit, remove the cover and 1/2 of the tape is still on the take-up reel! So this is a new failure condition I've not yet met, and I'd really, really like to keep this tape. So does _anyone_ know of a way to "force" the motor under the cartridge to rewind? A test point would be great but even just "put 12v across it here and here and off it goes" would be doable. I'm willing to sacrifice the drive to save the tape but don't want to if I don't need to. Perhaps a signal pin on the conecctor? (I've yet to find a pinout for this connector in my docs or a schematic of the M7546 (TQK50)). Sigh, --Chuck

25 years, 4 months

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20,046 pages of scanned old docs online?

by jfoust＠threedee.com

I've received all the files from the guy who scanned 20,046 pages of the classic docs listed below, at 300 to 400 DPI, as G4 TIFFs. They fit on two CD-Rs, un-tarred in their own directories. I'll send copies to anyone in the world for $8. This offer expires May 30, 2001 but may be renewed. Payment accepted in PayPal to 'jfoust(a)threedee.com', or check, or postal MO, 6-pack of microbrew or 4 ounces of good chocolate. I'm at 235 South Main St., Jefferson, WI 53549 USA. - John www.threedee.com/jcm 6502 MOS 6502 datasheet 6502 Assembly Language Subroutines (Leventhal) AMD AMD 29000 Memory Design Handbook Am29027 Arithmetic Accelerator Am29C327 Floating Point Processor Data General C Language Reference Manual GATE User's Manual AOS/VS Internals Manual AOS/VS Programmer's Manual, volume 1 AOS/VS System Calls Dictionary CEO User's Manual Eclipse 32-bit Principles of Operation Eclipse 32-bit System Functional Characteristics Fortran-77 Environment Manual Fortran-77 Reference Manual Fairchild Clipper User's Manual IDT RISC System Programmer's Guide R3000 Assembly Language Programmer's Guide R3000 Hardware User Manuals R3000 Language Programmer's Guide High-speed CMOS databook Motorola 68000 Family Reference 68020 User's Manual 68851 User's Manual 88100 User's Manual 88200 User's Manual Linear Interface Integrated Circuits NCR 53C90A/B Advanced SCSI Controller (2 different manuals) 53C94/5/6 databook 53CF94/96-2 Fast SCSI Controller Disk Array Controller Firmware Disk Array Controller Hardware Disk Array Controller Software Floppy Disk Controller (SCSI-to-FD) National Semiconductor NS32532 Datasheet Series 32000 Programmer's Reference Manual DP8490 Enhanced Asynchronous SCSI Interface NS32CG16 Programmer's Reference Supplement Graphics Handbook Series 32000 Databook DRAM Management databook Embedded Controller Databook Ohio Scientific C4P User's Manual (2 different manuals) 65V Programmer's manual Schematics for: 502 CPU board 505 CPU board 527 24K memory board 540 Video board 542 Polled Keyboard Pinnacle Systems 2 User's manuals for their 68k machine (My P-system machine) P-system manuals IV.12 Operating System Reference Program Development Reference Application Development Guide Fortran 77 Reference Assembler Reference Weitek WTL4167 Floating-Point Coprocessor datasheet Most of these are from about 1988 to 1992, with the exception of the OSI documentation, of course, which is from 1979.

25 years, 4 months

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My Collection

by pete＠dunnington.u-net.com

On Apr 13, 11:12, Jerome Fine wrote: > Also, I am not surprised, but no one seems to consider software as part > of their collection. Is it because they are mostly copies that have been > "acquired" or because software is not really considered collectable by > most list participants? > Does anyone on the list run RT-11 still other than Megan Gentry? Yes, two of my systems run RT-11 (V4.00 and 5.01). One 11/73 normally runs RSX-11M (4.2). The 11/83 runs BSD 2.11, and an 11/23 runs 7th Edition UNIX. The Microvax runs VMS, or at least, that's what's on the disks and I will figure out how to make it do things one day, honest. I also have various versions of XXDP on 5.25" and 8" floppies, and an RL02 pack. I'm not quite sure what I have for the VT78 as it's been in storage since I got it and I can't find the disks right now. David Gesswein has been helpful in pointing me to some software, and I expect I'll end up installing something something liek OS/8 or OS/278. The SGI machines mostly run IRIX 5.3 (one Indy has 6.5), and several of them have applications software (like MediaMail, Netscape, Acrobat Reader, ..) which I use regularly. One of them is the local mail server and fileserver, an also acts as a modem server for some home-grown viewdata software; one manages the print queues. The one with the modem is likely to have HylaFAX added to it (fax server software). Two of them are the machines my wife and I use for most day-to-day stuff. The other machines that get used regularly are an Acorn Archimedes A440, used as a fax server and DTP machine, using ArcFax and Impression Publisher, One R260 does a similar job at work, where it's used to print CD-R labels -- Publisher again -- and also acts as a terminal emulator to connect to serial ports on hubs and switches. There's a boring PC that gets used to decode Word documents sometimes, if the SGIs' can't read them, and occasionally to use Powerpoint, and sometimes to run some network management software for fun. The Exidy Sorcerer and one of the BBC Micros are sometimes used for games. I have a pretty good collection for the Beeb, including classics like Elite, and Revs; not much for the Sorcerer except Galaxians and Breakout. Anybody got any Sorcerer software? One of the Beebs is also used for programming EPROMs, assembling Z-80 code, and general hackery. I have quite a lot of software, I suppose (looking at all the disk boxes around here) but a surprising amount of it is systems software rather than applications -- most of the useful applications get run on Indys that aren't yet classic by the 10-year rule. If you want a list of O.S's: Paradox OS for a 68K machine (eg Sage II) CP/M for the Amstrad and Acorn Z-80 CP/M-86 for an Apricot which I no longer have CPN (CP/M-like OS) for the Torch UCSD p-System for the Apple ][ , Sage II, BBC Micro, and 11/23 RT-11 V2.00, V4.00, and 5.01 for almost any of my -11s RSX-11M 3.1 and 4.2 for the 11/23 and 11/73, and occasionally the 11/34 XXDP for any of the -11s DOS 3.3 and PRoDOS for the Apple ][ and //e RISC OS 2 for the Acorn Archimedes machines RISC OS 3 for the Acorn Archimedes and R260 machines Arthur (predecessor of RISC OS) for the Archimedes A310 RISC iX (BSD 4.3, ported) for the R260s BSD 2.11 for the 11/83 7th Edition for the 11/23 (and for the 11/73 if I rebuild the kernel) MOS 1.0 for the BBC Micros, plus a couple of modified versions, along with lots of additonal ROM software IRIX 5.3, 6.2, and 6.5 for various SGIs Solaris 2.3 and 2.7 for the Sparcs DOS 3.30 for the PC used to run 22-DISK etc DOS 6.2 for other PCs Windows 2.0, 3.0, 3.11, 95, and NT for PCs (English and German versions) Mac OS 6.something for the Mac Pluses Mac OS 7.something for the IIvx There's obviously a lot more but that's what comes to mind because I use it "every so often" rather than "once in a blue moon". For example, I have a licensed copy of RT-EMT which is an RT-11 emulator for Unix (mine was licensed to run under 7th Edition on the 11/23), but it's not something I use every day or even every year. 20 years ago it was in regular use. I also have some "classic" software, like Elite for the Beeb (I still have over a dozen shrink-wrapped copies), lots more Acorn/BBC software, HitchHiker's Guide to the Galaxy for DOS and CP/M-86, ADVENT for RSX and RT-11, Star Trek for umpteen machines, Galaxians for the Sorcerer, Kermit for almost everything I own that has a serial port (still extremely useful), assorted Claris software for the Mac Plus, Impression Publisher for the Arcs, Netscape (ie, version 1) and Mosaic for the SGIs, and probably 101 other things I can't think of this late at night :-) The point, I suppose, is that the hardware is more visible, while most of the software I use daily isn't exactly part of the "classic" collection. The software is at least as important, of course, as is the documentation; it's just less tangible. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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1702A EPROM Programming

by groberts＠mitre.org

I've been working with someone who has an old 8080-based single board computer he's trying to get to work. We're investigating several possible problems but it's starting to look like there's a problem with the EPROM. I have the ROM code he needs and will be checking out the EPROMS, but we may be faced with a need to reprogram one or both of these. They're the old 256 byte 1702A Intel chips (ceramic). I've only programmed the 27xx series but have read that the 1702's are "really difficult" to program. Was wondering if folks in this group could comment on how to proceed if/when we decide we need to reprogram one of these. Are there more modern plug compatible alternatives? We may also need to replace one or both - any sources known other than eBay? thanks. p.s. FYI, the computer here is the "MMD-1", an old 8080 trainer/breadboarding box. here's a picture i found on the web: http://online.sfsu.edu/~hl/c.E&L-MMD1.html - glenn

25 years, 4 months

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