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

by jrkeys＠concentric.net

More Good News! There is a fully wired and complete 407 Control Panel in the mail on it's way. You can see one here http://www.columbia.edu/acis/history/407.html

20 years, 2 months

3
4
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Corestore VCF-East photos

by mross666＠hotmail.com

Just a belated note that the Corestore VCF-East trip report and photos are available now: http://www.corestore.org/vcfeast06.htm Enjoy! Mike http://www.corestore.org

20 years, 2 months

1
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Free Motorola DTL?RTL chips

by RMcCulla＠westech-cfi.com

OOPS I forgot. The MC679P's are worth $5.00 each to us and we would like to buy some. Bob, rmcculla at dslextreme.com

20 years, 2 months

1
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Free Motorola DTL?RTL chips

by RMcCulla＠westech-cfi.com

Hi Tim; Do you have any MC679P chips left? Please let me know. Bob McCulla (562)528-3316 or, rmcculla at westech-cfi.com <mailto:rmcculla at westech-cfi.com> Regards, Bob

20 years, 2 months

1
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Compaq diagnostic disks

by reevejd＠mchsi.com

Hello All. I've recently acquired a Compaq Portable III (286, cool gas plasma display) and am having some problems with the hard drive. After powering up, the system says to insert a diagnostic disk in drive A. If I choose "Resume" by hitting the F1 key, it will boot PC-DOS just fine from the floppy drive (1.2 MB, 5.25") although it complains about the time and date not being set. The system doesn't show a C drive, however, and FDISK also says there is no hard disk. Here is my question - do I need these diagnostic disks to setup the hard drive on this system? Or is the hard disk just dead? Does anyone have a copy of the disks? Thanks for any help. John Reeve

20 years, 2 months

6
10
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Laser printing

by lee＠geekdot.com

> One 4050 was selling for $79, but it had an 800K (!!!) pagecount, > is that possible? Can these things last nearly one million pages? My LJ4M belonged to a school before I got it and shows something over 846K pages on the count. Only the last 1500 or so are pages I've printed. Lee.

20 years, 2 months

1
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System V.2 filesystems...

by julesrichardsonuk＠yahoo.co.uk

Anyone know anything about these? I've got an image of a hard disk containing Torch's System V.2 release, which I'm hoping to be able to read under Linux (which supports sysv, but makes the point that sysv.2 only works on floppies) Things that would be really useful to know: 1) Was there a standard partition table format for disks containing System V filesystems? Possibly every vendor perhaps did their own thing, but maybe there was a standard defined! 2) How do V.2 filesystems on floppy differ from V.2 filesystems on hard disks. Having looked at the hard disk image in a hex editor, it seems that (at least in Torch's case), the first 1024 bytes of the drive contain partition table info. It's hard to deduce the actual format from the data I have, though. If I strip off the first 1024 bytes of the image, then try and mount the image under Linux as a sysv filesystem, it gives it a fair old go. I get "VFS: Found a SystemV Release 2 FS (block size = 1024)" in the logs, but pulling up a directory listing of the root gives me a few sanely-named files (no directories), a few files with garbage names, and the following in the logs for the mounted filesystem: "Bad inode number on dev loop0: 23130 is out of range" One of several things looks to be happening: 1) The filesystem/disk image is hosed anyway (probably not, but can't rule it out right now). 2) The Linux sysv driver - just as the docs say - doesn't work on V.2 filesystems from hard disks, because they differ somehow from floppies. 3) Torch's idea of a sysv filesystem isn't quite the same as everyone else's. (unlikely, but not impossible) 4) My guess about needing to rip out the first 1024 bytes from the image is incorrect. (user error :-) Fingers crossed it's (2), but I'd really like to rule out (4) at the moment. Assuming it is (2), I'd like to modify the Linux sysv driver so that it *does* working with hard disk images containing V.2 filesystems, so maybe someone out there has some spec info... cheers! Jules

20 years, 2 months

1
1
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Test message...

by gordon＠gjcp.net

... to see why classiccmp things my mail isn't text/plain Gordonjcp

20 years, 2 months

1
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OT-ish: Build-it stuff

by dgy＠DakotaCom.Net

Hi, The discussion re: SBC6120 got me thinking (something I try hard to do only on special occasions! :> ) It's disturbing that it seems so hard for the OP to scrape up enough interest to justify parts for another build. Which brings me to my question(s)... *Why* aren't people interested in this sort of thing? - lack of interest (i.e. PDP8? what's *that*??) - lack of collector appeal ("Ah, but it's not a REAL '8!") - lack of space ("Hand me a shovel; I'm digging a sub-basement") - lack of CASH (<frown>) - lack of skills ("Now, *which* end of the iron do I hold??") - lack of time ("Honey, little Bobby set himself on fire, again. Can you please put it out?") I obviously have a good idea what the reasons COULD be. But, I'm curious as to what they REALLY are! In the interests of candor, maybe replies off-list are better? And, don't interpret this as JUST pertaining to that particular product/project. I'm curious as to how receptive (resistant!) people are to *any* sorts of projects like that (even if they are "already assembled") Thanks! I hope I didn't step on anyone's toes... --don

20 years, 2 months

10
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Tek 555 was Re: Need pointers on Oscilloscopes

by ajp166＠bellatlantic.net

> >Subject: Re: Tek 555 was Re: Need pointers on Oscilloscopes > From: ard at p850ug1.demon.co.uk (Tony Duell) > Date: Thu, 15 Jun 2006 02:03:55 +0100 (BST) > To: cctalk at classiccmp.org > >> >> On Saturday 10 June 2006 06:03 pm, Tony Duell wrote: >> > Somewhere I have the issue of Practical Television magazine which gives >> > construction details for a 1 valve + CRT scope. OK, there are some >> > semiconductor rectifiiers in the PSU too. The valve is for the timebase, >> > the Y input goes straight to the CRT plates. But it was useable for the >> > signals in vavle TVs of the time, and a lot better than nothing. >> >> Bet you could do the timebase without a valve, too -- I was looking seriously >> at a circuit that used a couple of neon bulbs as a triggered devices in a >> relaxation oscillator some years back... > >I think the single valve was a thyratron (gas-filled triode) used much as >you suggest. > >> >> What did they use for a CRT? I have a 3" one in storage that as I recall >> wants something like 1000V for an accelerating potential, and a transformer >> to develop that isn't exactly trivial. > >I think it used a normal valve HT transformer (which would give, perhaps, >700V between the ends of the secondary winding), with a voltage doubler >circuit. > >-tony Over the years I've bult a few 'scopes for special uses and a 2" crt needs anywhere from 700-1500 for good focus and brightness (also depends on the tube). The upside is you only need maybe 2mA so a voltage multiplier is reasonable. One I built used a quadrupler from a 200V transformer that also ran the 5 tubes used (mostly 12ax7 and similar). The CRT was 3AP1 (3") that gave ok brightness at 1000V. At the other end I built a small scope for a HB spectrum analyser using a D170 (about 1.3"h x 1.5W) square tube that was really decent looking at 800V. For that I used an old surplus audio transformer as a stepup using a pair of transistors in the classic self excited power oscillator. With a voltage multiplier it was easy to get the needed CRT voltage and because the osc frequency was around 800hz the caps were smaller too. The H and V amps were transistor and bandwidth tested out around 5mhz with no special effort as it was way more than needed. It's very doable and with modern HV diodes and transistors it's pretty straightforward. Allison

20 years, 2 months

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Old topic: AIM-65 test software

by rcini＠optonline.net

All: To resurrect an old question just in case someone came across this since my post two years ago: > While browsing an early-1980 issue of Compute! magazine, I > saw a blurb for Rockwell offering copies of the manufacturing > test program for the AIM-65 computer. The blurb references a > test manual (#EA74-M800) and a test program listing > (#EA74-J100). It also indicates that on the manufacturing > line, two EPROMs with the test program are installed in the > BASIC ROM slots. > > Does anyone have either manual or the ROMs in question? Thanks. Rich Rich Cini Collector of classic computers Lead engineer, Altair32 Emulator Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/> http://highgate.comm.sfu.ca/~rcini/classiccmp/ Web site: http://www.altair32.com/ /***************************************************/

20 years, 2 months

1
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Laser printing

by mtapley＠swri.edu

At 1:44 -0500 6/13/06, Ethan (hope it's not too cold down there yet) wrote: >On 6/13/06, Jim Leonard <trixter at oldskool.org> wrote: >> I have an HP 4ML next to me that is a decade old and prints(*) as well >> as the day I bought it. > >I bought a 4ML new, back in the day, for about $1100 - still works great. Our home printer, replacing a Stylewriter that kept blowing one of its transistors, is a Laserjet 4M+. The printer was free from Freecycle, a new toner cartridge was around $100 from HP. I suppose eventually I should hit http://www.printerworks.com/ or similar and reward the thing for its loyal service with memory, fresh ozone filters, a service manual, preventive maintenance kit, etc. but it's hard to justify when it just keeps working and working in its original configuration. (OT) I figured out enough of the somewhat obscure front-panel settings to give it a static IP address which seems not to conflict with our DSL router-supplied DHCP addresses, so now we can wireless print to it via our 2-Wire router even though our the router seems to diss Appletalk. (Contact me Offlist if you want the benefit of my experience on that.) I have to add my endorsement. -- - Mark Cell Phone: 210-379-4635 office: 210-522-6025

20 years, 2 months

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OT-ish: Build-it stuff / elektor

by Billy.Pettit＠wdc.com

Tony Duell wrote: Do you also rememebr the PE CHAMP (along with the CHAMPprog and CHAMPUV)? That was a 4040-based computer system which fitted (not including the PSU) onto one (large) piece of stripboard. The other 2 units were an EPROM programmer and UV eraser, of course. I think I have all the articles for that too... -tony --------------------------------------------------------------- Billy: No, that one doesn't ring a bell. But I was only in England until 1972 when I was transferred to Canada. Smith's there had the occassional UK magazine but not every month, and not cheap. Still that way. For example, I really like MacFormat magazine with the 2 CD's every months. But at Borders, these cost $15.90, 3x the UK price. Elektor is worth it, MacFormat not. so I subscribe to Elektor and make trades for back issues of MacFormat. Billy

20 years, 2 months

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1
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Expensive C64...

by bpope＠wordstock.com

A boxed C64 goes for $208.50 on ebay (Item #8824336692)! Was there not many sold that had the Canada Olympics logo on the side of the box? Plus I believe this is an older 64 since it does not have the rainbow logo in the top left corner. Cheers, Bryan

20 years, 2 months

2
1
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chain printer speed?

by roger.holmes＠microspot.co.uk

On 14 Jun, 2006, at 05:23, cctech-request at classiccmp.org wrote: > Maybe it's a trick of the eye, but the old drum printers often > exhibited a > lot of vertical misalignment of characters, making for wavy lines > and very > annoying reading. Curiously, the horizontal misalignment of > characters in > chain, train and band printers didn't seem to matter nearly as much. > > I remember that the Univac 1108 hardware manuals were drum printed > and then > reproduced and were darned near illegible after a couple of hours of > miserable reading. By comparison, 1403 output was pristine. Was it because of poor maintenance? My drum printer has not actually printed anything for a decade or more, though as of April it can now feed paper instead of making burning smells from the sprag magnet solenoids. IIRC there is some adjustment to the print hammers which brings a test print into correct alignment. I've just looked at some old printouts and they look OK to read, but when I look for waviness, there is a little there. Its a bit like a Trinitron monitor, people used them for years and then asked why a horizontal line has suddenly appeared on their screen. They often refused to admit it had been there all along and they had just not noticed it. Roger Holmes

20 years, 2 months

2
1
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VX42 Multia versus 3000-300X

by jdaviscctalk＠soupwizard.com

(this is a resend of prior reply with no subject) Jochen Kunz (jkunz at unixag-kl.fh-kl.de) wrote: > The small desktop 3000-300 machines use PS/2 RAM. The large desktop and > tower machines like 3000-500 / -600 use proprietary SIMMs. I used to have a dec 3000-800, nice machine. Wish I'd kept it when I moved. IIRC, the proprietary simms were used on a 256 bit wide memory path, so that series had pretty zippy memory for it's time, much faster than the 3000-300 machines (if you could find the propietary memory). And the bigger machines used more power. Found a good listing of the dec 3000 machines here: http://www.phys.ufl.edu/~prescott/linux/alpha/dec3000-sysinfo.html Short version: small low-end machines (used 72pin parity simms) were: * DEC 3000/300 * DEC 3000/300L * DEC 3000/300X * DEC 3000/300LX high-end machines (used propietary simms) were: * DEC 3000/400 * DEC 3000/500 * DEC 3000/600 * DEC 3000/700 * DEC 3000/800 * DEC 3000/900 Jeff Davis

20 years, 2 months

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0
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VX42 Multia versus 3000-300X

by jdavis＠soupwizard.com

(this is a resend of prior reply with no subject) Jochen Kunz (jkunz at unixag-kl.fh-kl.de) wrote: > The small desktop 3000-300 machines use PS/2 RAM. The large desktop and > tower machines like 3000-500 / -600 use proprietary SIMMs. I used to have a dec 3000-800, nice machine. Wish I'd kept it when I moved. IIRC, the proprietary simms were used on a 256 bit wide memory path, so that series had pretty zippy memory for it's time, much faster than the 3000-300 machines (if you could find the propietary memory). And the bigger machines used more power. Found a good listing of the dec 3000 machines here: http://www.phys.ufl.edu/~prescott/linux/alpha/dec3000-sysinfo.html Short version: small low-end machines (used 72pin parity simms) were: * DEC 3000/300 * DEC 3000/300L * DEC 3000/300X * DEC 3000/300LX high-end machines (used propietary simms) were: * DEC 3000/400 * DEC 3000/500 * DEC 3000/600 * DEC 3000/700 * DEC 3000/800 * DEC 3000/900 Jeff Davis

20 years, 2 months

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(no subject)

by jdaviscctalk＠soupwizard.com

Jochen Kunz (jkunz at unixag-kl.fh-kl.de) wrote: > The small desktop 3000-300 machines use PS/2 RAM. The large desktop and > tower machines like 3000-500 / -600 use proprietary SIMMs. I used to have a dec 3000-800, nice machine. Wish I'd kept it when I moved. IIRC, the proprietary simms were used on a 256 bit wide memory path, so that series had pretty zippy memory for it's time, much faster than the 3000-300 machines (if you could find the propietary memory). And the bigger machines used more power. Found a good listing of the dec 3000 machines here: http://www.phys.ufl.edu/~prescott/linux/alpha/dec3000-sysinfo.html Short version: small low-end machines (used 72pin parity simms) were: * DEC 3000/300 * DEC 3000/300L * DEC 3000/300X * DEC 3000/300LX high-end machines (used propietary simms) were: * DEC 3000/400 * DEC 3000/500 * DEC 3000/600 * DEC 3000/700 * DEC 3000/800 * DEC 3000/900 Jeff Davis

20 years, 2 months

1
0
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Top Posting and Message Trimming

by roger.holmes＠microspot.co.uk

On 14 Jun, 2006, at 05:22, cctech-request at classiccmp.org wrote: > > OTOH, it's pointless in this environment and contributes to a > significant > fraction of a message sent, so is just a total waste of space. I > would have > thought it's obvious though that people object to the companies > that see the > need to do this, not to the individual who posts to the list :-) > > I suppose the mailing list software could strip *all* signatures > from anything > posted in order to save bandwidth, but that's hardly fair on those > who have > legitimate, *useful* information in their sigs :-( Though I am not worried about this a thought occurs, if someone cannot suppress a footer, they could add a key line before the footer - something like " End of message " which could be recognised automatically and the key and everything following it could be trimmed. But don't lose sleep about it, short footers, top posting etc don't bother me, though on other lists the replies to digests quoting the whole digest drive me mad. Roger Holmes

20 years, 2 months

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Question for the list

by roger.holmes＠microspot.co.uk

On 14 Jun, 2006, at 05:17, cctech-request at classiccmp.org wrote: > > Billy Pettit wrote: >> But let's ask the list: is there anybody else out there or that >> you know >> who buys a product only if it has repair documentation available? Yes, in 1992 I ordered a new (1993 model year) Jaguar XJ6 3.2 on the condition that a printed workshop manual be supplied as well. Jaguar accepted the order through the local main dealer and I was the first person to get a copy of the five volume set, one whole volume of which was circuit schematics. > > Since I have 0% electronics repair skills, no. > >> And as a corollary, do you only buy products you want to run 20 >> years? Yes, on my desk in regular use is a Sharp eLSI mate four function calculator with LED display, which was the best of my 21st birthday presents in 1974. I collect classic cars, I have cars built in 1964,66,69,72,87 and 93. I bought the 87 and 93 ones new, and my father bought the 69 Daimler in 1970. >> Or >> can you accept a product as being expendable? How long should a >> computer >> part last? Sometimes, if they are really cheap or will be rarely used, but tools, cars, houses and other fairly slow moving technologies I expect to last a long time. The point with most computers is that the technology moves forwards so fast that I can move ALL my old data onto a new machine with plenty of room to spare every one or two years, and also get a faster machine with more RAM etc. What I lose out on is things like my collection of old games which were written for the Motorola 68000 which would run on my PowerPC but I can no longer dabble in on my Intel based MacBook Pro. I also find some old word processing and drawing documents which are in proprietry format become unreadable, which is why I now store all long term text document as plain ASCII, which I think will continue to be readable for a few years yet even though Unicode may sometime replace it. Roger Holmes.

20 years, 2 months

1
0
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HP 264x terminal status

by jwest＠classiccmp.org

I talked to the guy with the HP terminals just before the holiday. He said he was prepared to go ahead with the deal for $20 per item. However he said he wanted to wait until he had a chance to get final counts on each model, etc. After not hearing for him a while, I emailed him a week ago and asked if he got the counts yet. He gave me a really long reply, saying how he wished he never saw those terminals and just wanted to pitch them - and that he was just "turned around and confused". I emailed him said "I can make them go away, someone will come and pick them up..." and he never bothered to respond. Given his handling of this, I am going to assume the bulk purchase deal is off. I tried, my apologies. What irks me is that I publicly posted on this list saying to give the guy a chance when he was slow on delivery and wanted me to "interceed" for him. Jay West

20 years, 2 months

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Fwd: RE: [miniature-machine-tools] Re: email spam propagation on Yahoo

by rtellason＠verizon.net

Old tech wins! :-) ---------- Forwarded Message ---------- Subject: RE: [miniature-machine-tools] Re: email spam propagation on Yahoo Date: Wednesday 14 June 2006 01:36 pm From: "Collins, Graham" <colling at navcanada.ca> To: <miniature-machine-tools at yahoogroups.com> There was a segment on the Tonight Show some time ago were Jay Lenno had two groups of individuals; a couple of old "HAM Radio" operators and a couple of young "technophiles" whose challenge was to send a short message between themselves and who could send it the fastest. The Ham's used morse code and the techies used the modern "Text Messaging" on their cell phones. The techies were supposed to be a couple of the "fastest" text messagers around. The message I seem to recall was a single sentence - "I just saved a bundle on my car insurance". The two old ham's using ancient morse code won hands down. Cheers, Graham in Embrun near Ottawa Canada -----Original Message----- From: miniature-machine-tools at yahoogroups.com [mailto:miniature-machine-tools at yahoogroups.com] On Behalf Of Jason Spangle Sent: June 14, 2006 13:24 To: miniature-machine-tools at yahoogroups.com Subject: [miniature-machine-tools] Re: email spam propagation on Yahoo I guess it is what I thought, when I said "WEB" I meant HTML based access. lets all go back to the old days and use a regular mail client, I'm sick of my WEB-based e-mail for my old foundry site as well. Better yet, let's just use telegraph's, and tap out the binary code, shouldn't take long right? ;-) Hope nobody lost any data due to this, Thanks again, Jason. > The virus is a problem in the Java code used for > Yahoo's online email. We went to snopes.com to look > up the threat. You can read more information below. > > http://www.snopes.com/computer/virus/newgraphic.asp > > Richard > @homemetalshop.com ------------------------------------------------------- -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

20 years, 2 months

2
1
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Need 11/34 parts breakdown

by fireflyst＠earthlink.net

Hi all, Does anyone here have the illustrated parts breakdown for the 11/34a? (DEC part EK-34A52-IP) I need the bracket mounting page to see what parts I'm missing. Thanks Julian

20 years, 2 months

1
0
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FTGH: NCD-14c

by dgy＠DakotaCom.Net

Hi, I have a working NCD-14c that could use a new home. I still have to finish documenting it but, thereafter, it's free for cost of shipping (plus packing materials as I will probably have to pack it in foam, etc.) from 85715. If there is some interest in it, I will be considerably LESS aggressive in my documentation efforts. If *no* interest, I may tear it down to the foils... I'll wait a week before getting into it. --don

20 years, 2 months

1
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SBC6120 (a build-it-yourself PDP-8 clone) Last Buy and End of Life

by bob＠jfcl.com

SBC6120 Last Buy and End of Life If you've never heard of it before, the SBC6120 is a PDP-8 clone, including an optional front panel, that you build yourself http://www.sparetimegizmos.com/Hardware/SBC6120-2.htm http://www.sparetimegizmos.com/Hardware/SBC6120_Front_Panel.htm Spare Time Gizmos has been selling kits for them since 2001. Last November I announced that I was running low on SBC6120 parts and that I wasn't planning to buy any more http://groups.yahoo.com/group/sparetimegizmos/message/110 and the last kit was shipped to a gentleman in France at the end of March. Since the web page was updated to show them as "Sold Out", I've been inundated with requests. Apparently people thought that Spare Time Gizmos would keep selling the SBC6120 forever :-) I really wish I could, but given the minimum orders for some of the parts and the rate at which it was selling, it would take years to sell off the inventory. I just can't afford to have that much money tied up waiting for somebody to buy it. But, we can do one "last buy" for the SBC6120s, if we can get enough people together to make the minimum orders for 6120 chips, bus connectors, and PC boards. If all the people who have emailed me recently sign up, then that should be more than enough! The last buy will be for a SBC6120 partial kit that will include: * A four layer, silk screened, solder masked PC board * The HD6120 chip and 3 HM6208 SRAM chips * The special stacking bus connector I don't know exactly how much this kit will cost - it will depend on the price I can get for the parts - but I estimate that its going to be around $150. All the rest of the parts used in the SBC6120 are modern, easily found parts and there's a complete list, with suppliers, in the back of the manual http://www.sparetimegizmos.com/Downloads/SBC6120.pdf Pre-programmed EPROMs and GALs, if you need them, are also available from the Spare Time Gizmos web page. I may also sell full kits of all parts (I used to before I ran out) if there is enough demand. BTW, the SBC6120 is an entirely "open" design. All the schematics, firmware, and GAL programming is GPLed and available from the web page. If you're interested, email me and I'll sign you up on a list, and if we get enough orders then I'll let everybody on the list know the details. Oh, one last thing for people in the EU, the SBC6120 parts are not RoHS compliant and it's not likely they ever will be. If you want one, you'd better get it before July 1st! Thanks, Bob Armstrong Spare Time Gizmos www.SpareTimeGizmos.com

20 years, 2 months

38
100
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Looking for Motorola Boot disks

by g-wright＠worldnet.att.net

Hi, I have a few Motorola systems that still lack a boot disk. I believe they had a diagnostic/boot disk for the VME systems that worked on a few different systems, but I may be wrong. The first 2 ran VERSAdos - VME/10 5 1/4 - VME 1131 5 1/4 - EXORciser 8" Thanks, In advance - jerry

20 years, 2 months

2
1
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Fwd: Digibarn

by rborsuk＠colourfull.com

Begin forwarded message: > From: Bruce Damer <bdamer at digitalspace.com> > Date: June 14, 2006 1:35:39 PM GMT-04:00 > To: evan at snarc.net > Cc: rborsuk at colourfull.com > Subject: Re: FW: Digibarn > Reply-To: bdamer at digitalspace.com > > OK the site is back up folks, thanks for letting us know, can you > let classicmp know? > > b > > At 09:53 AM 6/14/2006, Evan Koblentz wrote: >> Bruce, this message was seen on classiccmp's cctalk today (see >> below). >> Apparently your site is down. >> >> -----Original Message----- >> From: Robert Borsuk [mailto:rborsuk at colourfull.com] >> Sent: Wednesday, June 14, 2006 12:49 PM >> To: General Discussion: On-Topic and Off-Topic Posts >> Subject: Digibarn >> >> Is Digibarn gone? >> >> >> Rob >> >> >> >> Rob Borsuk >> email: rborsuk at colourfull.com >> Colourfull Creations >> Web: http://www.colourfull.com > > > DigitalSpace > 343 Soquel Avenue, # 70 > Santa Cruz CA 95062-2305 USA > bdamer at digitalspace.com > > http://www.digitalspace.com > > >

20 years, 2 months

1
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Digibarn

by rborsuk＠colourfull.com

Is Digibarn gone? Rob Rob Borsuk email: rborsuk at colourfull.com Colourfull Creations Web: http://www.colourfull.com

20 years, 2 months

2
3
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big box of solaris 2.1,2.2,2.3 cdrom + manuals?

by brad＠heeltoe.com

Would anyone like a big box of solaris 2.1,2.2,2.3 cdrom + manuals? Solaris and answer book and some tech pubs also. yours for the cost of shipping... -brad

20 years, 2 months

1
0
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Nyetscape

by chrism3667＠yahoo.com

LOL LOL http://members.ozemail.com.au/~imcfadyen/notthenet/nyetitle.htm __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

1
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www.wang2200.org now online

by frustum＠pacbell.net

After five years of accreting information into my Wang 2200 web site, Jay's generous hosting offer prodded me into action. I've revamped my web site and put everything under a new domain name: http://www.wang2200.org/ I've used xenu (http://home.snafu.de/tilman/xenulink.html) to verify all of my links, but with 21 web pages that got converted, I could have messed up in any number of ways. If you visit and spot anything weird, please let me know. If you are still using netscape 4, sorry, the pages will look pretty bad because I'm using css to style the pages now. I've tested it under firefox, ie 6, and opera 8. The pages were designed to assume a minimum screen width of 800 pixels. Since the discussion came up on this list a few weeks ago, here is how I put my pages together. First I played around with one page and css until I was more familiar with css and had a "look" that was OK. I then converted each page, by hand, to using css and removing tables wherever they weren't necessary. Each page was validated against the w3c xhtml validator. There was still a lot of common code in all of these pages, so I wrote a perl script that reads in a "schema", containing a template plus a list of pages to apply the template to. Each page is processed and emitted to final directory. This way I can, say, change the navigation menu in the schema and it will get automatically updated in all the 21 pages that have a menu. This perl script also provides for subroutines and variable substitution so that I can define, say, a color in one place and my css and html pages can reference the variable and all get updated with the one color value. It took a couple evenings to write but I'm happy I spent the time. Thanks again Jay.

20 years, 2 months

4
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EU

by technobug＠comcast.net

On Thu, 8 Jun 2006 20:22:42 +0100 (BST), > ard at p850ug1.demon.co.uk (Tony Duell) wrote: > >>> I would assume it's a linear (as opposed to area) CCD. Now, I >>> spent many >>> years playing tricks with CCDs, and one thing that's burnt into >>> my memory >>> is that the drive pulses are critical. Not mild;y critical, but >>> _very_ >>> critical. >> >> OK, scratch that idea, then :-) > > If you think how a CCD basically works, it has a series of electrodes > (normally 3 or 4 'phase' drive) on the surface of the chip, by > sequencing > the votlages on these electrodes, you move the accumulated charge > along. > Charge transfer actually occurs as the voltages are changing, which > means > the rise/fall time, and to a lesser extent the shape of the > rising/falling edge matters. Too steep can be a problem. I spent > many a > late night looking at the 'scope and adding low-value series > resistors to > slow things down a bit. > Alas, the world has moved on : check out <http:// pdf1.alldatasheet.com/datasheet-pdf/view/47490/SONY/ILX508A.html>. The clock generators are built in - you input a read-out gate, and a clock to move things around. There is a sample-and-hold (built in). Nothing really critical like in the old days playing with Reticon sensors. I ran across a bunch of 2088 pixel chips and had one beast running in less than 15 minutes... These sensors are over 10 yo. CRC

20 years, 2 months

6
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Top Posting and Message Trimming

by jvdg＠sparcpark.net

Jay West wrote: > If a signature is offensive, obtrusive, or antagonistic [...] Only a Sith deals in absolutes. ;-) > you can bet I will tell someone to remove it without hesitation. You can do that, but you'd be out of bounds, there. You could tell them to not use it on your list, though. > Perhaps I'm grouchy this morning, but this phraseology above hits > me as "posting here is my right" which it most certainly is not; > it's a privilege. Well, then I guess it hit you wrong. I don't think anyone suggested that posting to this list is a right rather than a privilege. > Putting certain political/social/religious sentiments in a post, > be it a signature or in the body, is simply not allowed. This policy > isn't because I'm anti-politics, on the contrary, I'm a political > junkie. But this is not a political discussion list and and > someone spouting political rhetoric (on either side of the > aisle) is bound to tick someone off. well, if that's the touchstone, you might as well shut the list down right now, because *any* opinion on *anything* (including classic computing) is boud to piss *someone* off. ,xtG tsooJ

20 years, 2 months

1
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Top Posting and Message Trimming

by jvdg＠sparcpark.net

Jules Richardson wrote: > When all is said and done, the actual number of people who think top-posting > is the right thing to do is *very* thin on the ground - but some popular > applications do force peoples' hands somewhat. As the saying goes: "posting at the top because that's where your cursor happens to be, is like defecating in your pants because that's where your rectum happens to be." >> I dislike signatures, mainly because some claim corporate property or >> confidentiality which makes little sense. There are a few that have >> politically oriented signatures which has absolutely no place on the >> list (ok, that one is policy-ish ;) ). If it was trivial to do, I think >> I'd set the list to automatically remove all signatures > > See my other post - problem there is that a fair number of posters *do* > include useful, legitimate contact details in their sigs. Often that may be > something as simple as info on how to remove any spam traps from their > displayed email address. My own signatures are mostly just things I find funny, thought-provoking, somewhat important, or otherwise worthy of randomly inserting at the very bottom of my emails, denoted by an appropriate seperator, of course. Some may find some of my signatures offensive for reasons religious or political, but "feh!" I say to that. I was taught that (the contents of) signatures are off-limits for dicussion. Dunno what, if any, RFC that is in. If it isn't in one, it should be. The sig file represents our fifteen pieces of flair. We do want to express ourselves, don't we? I do take care to add at least some rudimentary contact info (or a plug for my own site which hardly deserves plugging) to them, though. Fot that reason alone I am of the opinion that sigs shouldn't be stripped. They are a minor inconvenience at worst, and a welcome diversion from heated discussion that reminds us all that there is more to life than banned substances in components and the proper use of IC sockets, at best. > I'm sure it's possible to strip sigs - even if it's a tweak and recompile of > the mail list software - but it's a potentially bad thing to do even though it > would get rid of the moronic junk that some companies insist on adding to > employee emails :-( > > Actually, dumping any sig with the word 'confidential' in it would probably > nuke nearly all the legalese ones, and dropping any with 'virus' in would get > the ones inserted by AV software (despite this list being text-only and so the > info is unnecessary) :-) > > So it probably *could* be done. Is it worth the effort? No. :-) Hear, hear. ,xtG tsooJ

20 years, 2 months

2
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[Fwd: raising awareness re: classic hardware]

by dittman＠dittman.net

I've received the following from Dave McGuire, who is a fellow DEC collector (some of you know him): > Hey folks. I just had a disturbing conversation with an eBay seller > up in Canada. One of his auctions was for DRAM chips "for gold scrap" > that he claimed to have "removed from some old DEC computer". I sent > him a question asking him what happened to the rest of it, and > reminding him that "some old DEC computer" was likely worth orders of > magnitude more than the trivial amount of gold that one might glean > from recycling DRAM chips. > > He replied with this: > >> Not anymore. In case you haven't noticed, the market for DEC PDP >> stuff is gone. All of the collectors have as much as they want and >> nobody is actually using Qbus anymore. The same happened about a year >> ago with IBM MCA stuff. You can't even get $10 a card anymore. I've >> shipped out hundreds of pounds of DEC Qbus and IBM MCA for scrap >> metals. You should do the same. > > This is, of course, COMPLETELY incorrect, aside from being > disturbing. The DEC collector market is booming like never before, > and growing like crazy. -- Eric Dittman dittman at dittman.net

20 years, 2 months

16
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Top Posting and Message Trimming

by henk.gooijen＠oce.com

> -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Tim Riker > Sent: dinsdag 13 juni 2006 7:00 > To: On-Topic and Off-Topic Posts > Subject: Re: Top Posting and Message Trimming > > Cameron Kaiser wrote: > >>Another thing to avoid is adding a footer like the above > claiming that > >>this message is in any way protected. This is NOT a private list. > >>Archives are online. If you believe that the message you > are sending > >>should not be going to the general public, then DO NOT POST. > >> > >>I would recommend that the mail list reject any messages > with such a > >>clause attached to them. > > > > > > Some people can't control for this, though. My work address adds on > > such crap automatically, and if it's the only address they have ... > > Anyone can get a gmail account or similar. > > > Naturally I use my home E-mail for this sort of stuff. > > Exactly what I'd recommend. :) > > -- > Tim Riker - http://rikers.org/ - TimR at Debian.org Embedded > Linux Technologist BZFlag maintainer - http://BZFlag.org/ - for fun! > > I am sorry, but I can not strip that footer, and you know that. And no, I use e-mail server, and I am not going to get a gmail or whatever account. It is a sad thing to see that the less tolerant attitude of the world is catching up on this list of old computers addicts. If I post to this list, it is always on topic. You will have a difficult time finding a reply on one of the *many* garbage threads on this list! If more people are "offended" by a footer, that I can not control, there are two options. 1) you see that I posted a message, so just delete it. Put me in your kill file. 2) Tell me, and I wil never reply to anything on this list. I would not want to ruin anybody's day because he sees a footer in my reply. And to keep my reply count low, I am not replying on this thread anymore. Yes, I will keep reading this list, because I *learn* from some of the posters on this list. - Henk, PA8PDP. BTW, sorry for the footer (if it appears) This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.

20 years, 2 months

4
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VX42 Multia versus 3000-300X

by compoobah＠valleyimplants.com

I might have the opporitunity to get a DEC 3000-300X machine for VMS (175 MHz 21064) I know that 21(1,2,3)64 machines offer substantially improved performance, but for the moment they are out of reach. The question- I'm running VMS currently on a VX42 (233MHz 21066A, 512k cache, 88MB RAM) Multia, and it is quite slow (user response time with AXP-VMS v7.3-1) SPEC-92 indicates that the DEC 3300X will be slower (84/100 for the 300X, 97/112 for (a generic) 21066A/233) Likely, however, the 300X would have better I/O subsystems. Would it be worth messing with, or should I not bother (as far as useablility, not number-crunching prowess)?

20 years, 2 months

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Fwd: [Electronics_101] RTL IC source?

by rtellason＠verizon.net

Anyone here know of a source for these parts these days? ---------- Forwarded Message ---------- Subject: [Electronics_101] RTL IC source? Date: Tuesday 13 June 2006 08:20 pm From: "geraldkrizek" <gkrizek at verizon.net> To: Electronics_101 at yahoogroups.com Does anyone know of a source of RTL ICs. I need several MC1013P ICs to repair a HP sweeper. Thanks in advance. Jerry ------------------------------------------------------- -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

20 years, 2 months

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Eico 435 'Scope manual

by dm561＠torfree.net

-----------------Original Message: From: "Roy J. Tellason" <rtellason at verizon.net> Subject: Re: Eico 435 'Scope manual On Saturday 10 June 2006 04:38 pm, M H Stein wrote: > While we're on the subjects of 'scopes & manuals, does anyone > here have a manual for an Eico 435 oscilloscope by any chance? I had (and maybe still have, with problems) a 425, think that might be close enough? ----------------Reply: Thanks for the reply, but I already have a copy of the 425 manual, as well as an original Heath O-8 manual and some Tek stuff. Haven't looked yet to see how much difference there is twixt the 425 & 435, probably won't be too hard to troubleshoot w/o docs; was just hoping that perhaps someone had a 435. But thanks again, anyway! mike

20 years, 2 months

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VX42 Multia versus 3000-300X

by jdavis＠soupwizard.com

Jochen Kunz (jkunz at unixag-kl.fh-kl.de) wrote: > The small desktop 3000-300 machines use PS/2 RAM. The large desktop and > tower machines like 3000-500 / -600 use proprietary SIMMs. I used to have a dec 3000-800, nice machine. Wish I'd kept it when I moved. IIRC, the proprietary simms were used on a 256 bit wide memory path, so that series had pretty zippy memory for it's time, much faster than the 3000-300 machines (if you could find the propietary memory). And the bigger machines used more power. Found a good listing of the dec 3000 machines here: http://www.phys.ufl.edu/~prescott/linux/alpha/dec3000-sysinfo.html Short version: small low-end machines (used 72pin parity simms) were: * DEC 3000/300 * DEC 3000/300L * DEC 3000/300X * DEC 3000/300LX high-end machines (used propietary simms) were: * DEC 3000/400 * DEC 3000/500 * DEC 3000/600 * DEC 3000/700 * DEC 3000/800 * DEC 3000/900 Jeff Davis

20 years, 2 months

1
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EU

by chrism3667＠yahoo.com

Dude...I got kicked off Lisalist plugging your stuph lol. I hope you at least appreciate the gesture... --- cctech-bounces at classiccmp.org <trixter at oldskool.org> wrote: > woodelf wrote: > > Alexandre Souza wrote: > > > >> Describe me a CGA board on that media ;o) > > Yuck!!! > > I can't remeber anything I liked about CGA? > > I love CGA: http://www.oldskool.org/pc/8088_Corruption > (shameless plug) > -- > Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ > Help our electronic games project: http://www.mobygames.com/ > Or check out some trippy MindCandy at http://www.mindcandydvd.com/ > A child borne of the home computer wars: http://trixter.wordpress.com/ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

1
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paper tape for GNT 4601

by masterson＠BATTELLE.ORG

tom: Can you provide a source where I can purchase 11/16 inch wide spools of paper (prefer yellow) for the reader mentioned above Thanks David C. Masterson Research Scientist Battelle Advanced Materials Applications Group National Security Division 505 King Ave Columbus, Ohio 43201 614 424-5538 614 458-5538 fax masterson at battelle.org

20 years, 2 months

2
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More stuff to give away

by williams.dan＠gmail.com

I have more stuff to give away : a pdp 11/04. Just the processor unit. An RK05 (untested) with 3 disk packs (2 new). An Rs/6000 (basic model) An Apollo (No PSU) Some HP Unix machine (Never tested don't have the correct cable) These are pick up from London. I also have a cray el98 around 6 processors, 50 hard drives. Untested and dismantled. Although it was working when disconnected. This is currently in storage in London. You will need a large van either LWB or a Luton. Taking offers on this as I have spent a lot of money on storage and picking it up. I will accept trades though. Dan

20 years, 2 months

2
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cash register tape

by dgriffi＠cs.csubak.edu

I'm pretty sure I could design and build a paper tape punch and reader that uses plain old cash register tape and winds the tape on old microfilm spools. Assuming the sprocket and data holes match standard paper tape, what are some other caveats to look out for? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

20 years, 2 months

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atari printers

by rigdonj＠cfl.rr.com

At 03:54 PM 5/31/06 +1200, you wrote: >On 5/31/06, Tony Duell <ard at p850ug1.demon.co.uk> wrote: >> There was also a standard controller IC (it was a mask-programmed >> microcontroller, I forget which one, but it was something standard -- >> maybe 6805-like), which was used in some of the desktop printers. It had >> Centronics and 600 baud serial inputs. > >The controller in the C= 1520 is a 6500-family masked-programmed >controller and only implemented the C= IEC bus, not serial or >Centronics. > >> I have the Alps service documentation for this mechanism, but it doesn't >> show the motor pinion separately from the motor. > >That's a shame. > >I've contemplated what it would take to make a "negative gear" in some >durable material like aluminum and experiment with extrusion molding >of a "slug" which would then be cut down to the right length. Since I >have a few bare Alps mechanisms, I've also contemplated experimentally >turning down the motor shafts if I were to ever find a matching gear >that was the right size except for shaft diameter. Anyone else here >have any ideas on how to solve the perpetual cracked gear dilemma? I bought a CGP-115 new about 20 years ago and had the same gear problem. I went to a TRS "computer store" and tried to order a gear but they insisted that I had to have the printer checked out by their technician before they would sell me one. After a bit of intense questioning they finally admitted that there was a one hour minimum charge at something like $40/hour! I told them to stuff it and I've seldom darkened the door of an Trash Shack since. A year or two later I meet the manager of another TRS store and I told him the story. He ordered 3 or 4 gears for me and they only cost about $1. So the gears WERE available. I've seen a crude but effective method of cutting gears by turning a shaft of the desired od and then mounting it horzontally on a verticle milling machine so that it can turn freely. Then mount a TAP vertiaclly in the headstock and spin it slowly and then moving it slowly in against the shaft. The tap will cut longitudinal (actually nearly longitudinal) threads (teeth) in the shaft as you move it in. (You only need to move it in by the depth of threads for the gear once you contact the shaft.) It will also spin the shaft and cut threads all the way around. You will need a tap of the same od and pitch (or as close as you can get) as the gear that mates to the one you're trying to make. This will yield a lantern post shaped gear instead of a straight one but for this application that should be even better. Another way to cut the gear is to turn a shaft of the correct od and mount it in a lathe. Lock the headstock so that the lathe spindle, chuck and shaft can't turn. Make a cutter that matches the shape and size of one of the spaces between the gear teeth. (1) Mount the cutter in the tool post holder and move it back and forth taking light cuts on the shaft until you get the desired depth of cut. (2) Unlock the head stock and turn it exactly the angle between the gear teeth and then lock it again. Reapeat steps 1 and 2 until you've cut all the teeth. The advantage of this method is that you can cut a gear of just about any length. You can then cut them off to the desired size and that will yield a number of individual gears. FWIW THE standard reference for gear cutting is 'Gear Cutting Practice' by Colvin and Stanley. My copy is dated 1937. Joe > >-ethan >

20 years, 2 months

10
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Eico 435 'Scope manual

by dm561＠torfree.net

While we're on the subjects of 'scopes & manuals, does anyone here have a manual for an Eico 435 oscilloscope by any chance? Loaned 'scope & manual to a friend some time back; his wife threw out the manual & scope came back DOA (but he's still a good friend). TIA, mike

20 years, 2 months

2
1
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East Coast business

by cclist＠sydex.com

I got a call from someone who's got a bunch of S/36 8" floppies who want to import the data to their AS/400. They want to be there for the process (sensitive data). Anyone in the NY/NJ area who wants to tackle this? Drop me a private email if so. We could do it but we're on the other side of the continent. Cheers, Chuck

20 years, 2 months

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OT-ish: Build-it stuff

by Billy.Pettit＠wdc.com

Tony Duell wrote: The place I was thinking of is Cricklewood Electronics. Easy to reach by pnblic transport from central London, and they do have a fair stock of components (but watch the prices -- \pounds 25.00 for a 6522? I don't think so!) I think Grandata are still going (behind the Wembley Stadium). They're a TV/VCR spares place, and don't stock many general components (I don't think they stock resistors, for example). But they do have a lot of Japanese transistors, etc. > two or three like you said. But that is still more than we have here. = > Nuts > and Volts is it and it is pretty basic. What about Circuit Cellar? We get that in Borders in the UK -- I used to buy it, but ratehr gave up when it turned into a thinly disguised advert for the lasted microcontorllers (many of which didn't seem to be the most suitable devices for the application). -tony -------------------------------------------------------- Billy: Thanks for the advice on Cricklewood. I have been in there but not recently. They used to have a nice line of surplus test equipment. And didn't there used to be great place down on the South Coast, Rye or Wye, that had a huge warehouse full of test equipment? I remember I had to hire a car just to get home, there was so much good stuff. Circuit Celler is pretty much as you said - article/ads for small company development boards. Since Steve Ciarca left, it hasn't done much that is fun. Billy

20 years, 2 months

1
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chain printer speed?

by Billy.Pettit＠wdc.com

Joe R. wrote: Interesting, The chain printers that I worked on all had the exact same number of different characters. Depending on the number of characters in the character set that was used on that partticular printer they usually had 2 or 3 COMPLETE character sets. IIRC there were 196 positions per belt and the characters sets that we normalled used were either 64 char/set or 96 char/set. Burroughs had a number of different character sets available for the printers but in 2+ years that I worked for them I don't recall ever seeing any used except those two. Joe I also recall a numeric-only version, which could do up >to 2000 lpm, and I've heard about (but never seen) a Braille version > >Nico > ---------------------------------------------------------------------------- ---- Billy: Most of the trains and even some of the drums CDC supplied had an uneven distribution of characters based on their frequency in normal use. Part of this analysis is not intuitive; for example more 1's than any of the other numbers. The main reason for this was performance. But almost as important was reliability. Frequently used characters wore out faster. Adding extras and distributing them evenly extended the life of the train. I still remember my first experience trying to troubleshoot a train printer that printed only Greek. A week later, I was sent to work on one that only printed Hebrew. This time I was smart enough to have an English train flown in before I arrived. There were finally more than 50 trains in the catalog. One was even all numbers and special characters for one of the AEC sites. I saw one in a publisher's site that had been modified to print multiple characters in one space, so they could include proof reading characters on the galleys they sent to the printer. I never saw it but always wanted to get the one that had a full range of mathematical symbols. Now we take for granted any special font and mix them freely. Some things DO get better. Billy

20 years, 2 months

1
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Practical Electronics Calculator

by Billy.Pettit＠wdc.com

I sent the following note to the two individuals who asked for copies. Anybody else? Send me an eMail next week or tonight. (I won't have access for the next five days. Which means I'll be behind by 1000+ messages. Some stuff will be lost or ignored. I'll start at the top so if you send next week, I'll definitely see it.) ===================================== Billy: I found my copy of the calculator articles down here in OC. So I can xerox and post to you. Please send your snail mail address. 2 caveats: This is a 33 year copy made on a poor copier. None of the photographs are going to be very legible. I have the original magazines in the garage, but it could be 1-2 years before I dig them out. And second, I'm flying up to Oregon in the morning. Won't be able to get to this until next week. Billy

20 years, 2 months

1
0
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ASR-33

by dgy＠DakotaCom.Net

Still housecleaning and the ASR-33 has got to go. Any ideas what it may be worth? I have to decide if it's worth the trouble to epay it -- or, if I should just systematically disassemble it for documentation purposes. Thanks! --don

20 years, 2 months

3
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chain printer speed?

by roger.holmes＠microspot.co.uk

> chain printer speed? The last mini-computer I used was a GEC 4080, it had a chain printer which was rated at 600 lines per minute, I remember this because it was the identical speed to the printer on my own mainframe which was built 15 years earlier. Mind you the chain printer had a 64 character set whereas the drum printer could only manage 50 - no parentheses or brackets which are handy for high level language programming. Characters for 1/4, 1/2 and 3/4 are little compensation. Roger Holmes 1962 ICT1301 2006 MacBook Pro

20 years, 2 months

1
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Megadata

by aw288＠osfn.org

Anyone here familiar with Megadata minicomputers, built just outside New York City in the 1970s? William Donzelli aw288 at osfn.org

20 years, 2 months

1
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KB 3270 plus

by brad＠heeltoe.com

I have a brand new (well, new in box) KeyTronic KB 3270 Plus keyboard. This is a programmable keyboard with an old XT style round din plug. I think there is software, but it's probably DOS only. I think it was designed for people using 3270 emulators and gave them the feel of a real 3270 keyboard (and key placement). It comes with extra key caps. I ment to use it long ago but never did, and now I have no need. I don't think it has much value (to me anyway) so all I ask is the cost of shipping. Contact me via email. -brad

20 years, 2 months

2
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VMS network install

by jplist＠kiwigeek.com

Greetings folks; I'm trying to do my first VMS install, my machine of choice is a VAX 4000-300. Alas the VAX lacks any devices barring the DSSI disk I picked up >from our own Pat Finnegan. So far I think the "easiest" way to get VMS onto the machine is by a network install. I'm fairly certain that I've seen list members pontificating on how easy VAX makes these sorts of things, so I'm hoping I'm right on the "easy" part. My plan is to get VMS installed on a SIMH VAX (actually, I've got this bit sorted already, SIMH rocks) and then get the VAX 4k to pull VMS off the SIMH VAX. The problem? I have absolutely no idea how to do this. This -is- my first experience with VMS, and my Googling for network install documentation is finding very little. Could someone help me out? Thanks all; JP

20 years, 2 months

1
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Top Posting and Message Trimming

by dgy＠DakotaCom.Net

Hi, Is there an "accepted norm" for correspondence, here, with respect to top posting and message trimming? Or, am I just being a grumpy olde farte? :> Thanks! --don

20 years, 2 months

11
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LQP02, LQP03 and LN03 docs available

by trash3＠splab.cas.neu.edu

I have the following available: EK-LQP02-RM-001 LQP02 Programmer Reference Manual AA-L662A-TK Installing and Using the LQP02 Printer AA-L662B-TK Installing and Using the LQP02 Printer AA-L663A-TK LQPX2-AA Forms Tractor EK-ASF02-UG-0001 Installing and Using the ASF02 Automatic Sheet Feeder $12 for postage and packaging Also: EK-LN03-PS-002 LN03A Pocket Service Guide EK-OLN03-RM-002 LN03 Programmer Reference Manual EK-TLN03-MG-001 LN03 Series Toner Kit Guide EK-MLN03-MG-002 LN03 Series Maintenance Kit Guide EK-OLN03-UG-002 Installing and Using the LN03 EK-OLN03-UG-001 Installing and Using the LN03A EK-LN03A-TM-001 LN03A Technical Manual $20 for postage and packaging Also: EK-LQP03-UG-002 Installing and Using the LQP03 Printer EK-LQP03-RM-001 LQP03 Printer Programmer Reference Manual $ for postage and packaging Or come by and pick them up for free... Wrentham, MA Joe Heck

20 years, 2 months

1
0
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Scopes (again)

by compoobah＠valleyimplants.com

Based on the recommendations of the list, I bought a used LeCroy 9400 scope (O.K.- I went down to Boeing Surplus and they happened to have one close to my price range, and since it had come up on the list I knew that it would work [you can get good stuff at Boeing, but you can also get stuff that's very good for testing the rudder system in a 757, but not for much else]. I still give you guys credit, though). Anyway, two questions: What's a good set of resonably priced but decent probe-type things to start with? I went to a electronics shop and was quoted $100 for a set - I'd rather not pay as much for the probes as I did for the scope if I don't have to. MCM has several listed in the ~$50 range, but I don't know what to look for or if they are any good. (2) What's a good introduction to actually using the thing? I got the 9400 (A) manual from LeCroy [Aside - there's something really wrong when the company recommends you buy a copy of Norton Anti-Virus to run on your SCOPE!]. I know basically what a scope does, and have used one twice, but that's it. I also have a 555 in the garage, should I start on that and move to the DSO? I didn't ever use the 555 (had it 7 years), because it was ~110 Lbs and no probes. Scott Quinn PS- regarding analog meters- been looking at them (not seriously), and haven't found much. What's a good one, and do they still make the FET versions of the VTVM (MCM doesn't seem to list any).

20 years, 2 months

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OT-ish: Build-it stuff

by chrism3667＠yahoo.com

it would be nice to see a copy at Borders/B & N. Im not a ham, not yet anyway, but Ive never even heard of it. --- cctech-bounces at classiccmp.org <aw288 at osfn.org> wrote: > > Another interesting publication for (ham) builders here in the US is QEX > > (published by the ARRL.) I have no idea how well known it is > > On the northeast hamfest circuit, well known, thanks to Finberg. > > > (I just happened to > > run across a copy at the ARRL table at the TRW swap meet) but I was impressed > > that it had some fairly technical stuff for builders that was more than some > > flashing LEDs. > > When hams gripe about how QST has been dumbed down so much in the > technical and project regions, it is amazing to find out how many _do_not_ > know about QEX. The whole point of the QST split (old QST -> new QST and > QEX) was to make everyone happy - one magazine for average Joe Ham, and > one for the hardcore project-building hams. The ARRL seems to be very bad > at marketing the magazine. > > William Donzelli > aw288 at osfn.org > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

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Atari/RS/CBM plotters - gears & pens

by dm561＠torfree.net

-------------------Original Message: From: Pete Turnbull <pete at dunnington.plus.com> Subject: Re: atari printers - gears >On Jun 12 2006, 1:30, Philip Pemberton wrote: <snip> > I'd be tempted to file a flat section on the shaft and add a matching flat to > the gear, or use a small screw to fix it. I'm not sure what the lifetime of > Loctite is, but I wouldn't want to be pulling a plotter apart a few years down > the line just to put some more glue on a gear... >From memory, the gear is too small to make that practical, even an M2 would be far too big. <snip> -- Pete ----------------Reply: Indeed; the gears in question are only about 5mm (1/8") dia. with 12 (13?) teeth. As Tony explained, as the plastic ages they split due to the stress of being pressed onto the motor shaft. Although my CGP-115 was working fine when last used several years ago, when I dug it out recently I found that both gears had split in the meantime. I reamed out the centre hole a little with a 1/64" drill to relieve the stress, put a tiny drop of superglue on the inside of the split and put it back on the shaft with a gentle clamp (to avoid deforming the fairly soft teeth). Let it dry, carefully scraped a bit of excess glue from between the teeth at the split, and so far it's survived several feet of test printing in text mode (which stresses the gears much more than line drawing). What I was testing was re-inked pens. I suspect that some of the people who made suggestions re the pens have not seen one of those either; they are small ball-point pens, 24 x 5 mm (1" x 1/8") with a very fine point (for printing 6pt characters, 80 cols on 4" paper). There are two types, a plastic tip and a metal tip in a plastic sleeve. The tips are easily removed; the absorbent insert inside the body can also usually be removed, although that's not necessary. After a thorough soaking and drying they can be refilled and reassembled; briefly put them in hot water to force ink out the tip to get it started, and that's it (unless it was too solidly clogged or corroded). Since they have to fit into a small 4-pen carousel, the shape and size is pretty critical so they can't be replaced with any generic pens. It might be possible to replace the metal tip with a cut-off ballpoint refill, although a normal refill might not work very well since the pens are mounted horizontally. YMMV, mike ---------------------------------------- Upgrade your account today for increased storage; mail forwarding or POP enabled e-mail with automatic virus scanning. Visit our member benefits page at https://members.canada.com/benefits.aspx for more information.

20 years, 2 months

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OT-ish: Build-it stuff

by Billy.Pettit＠wdc.com

Bryan Pope wrote: Arrgh!! You didn't see You-do-it Electronics?!?! ( http://www.youdoitelectronics.com ) They are the best place in the area for parts / kits / books / tools and they have good prices too! MARCH is having a New England road trip this fall and that is one place we will be visiting... (along with the Flea at MIT) Cheers, Bryan -------------------------------------------------- No I missed it, relying instead on 30 year old memories. Obviously, I should have asked somebody who knew the area. I hang my head in shame. For the link. Billy

20 years, 2 months

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Working getting a SEL810A Computer

by jrkeys＠concentric.net

Talking with group that has a SEL810A that is still running today in their business. They plan on turning if off for good on Wednesday. I got my fingers crossed. :-) John

20 years, 2 months

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Any DEC RSTS folks out there, need help

by g-wright＠worldnet.att.net

Hi, I have been working on my 11/44 for a while and finally go it to boot and find the drives. (RA80's) I believe it had more than the (2) I have. Drive ID buttons say 0 and 2. The system booted RSTS 1 time and of coarse asked for the password. I shut down the system and went back to the "books" for a while. I then tried to boot it up again the next day and receive the following. >>>>>>>>>>>>>>>>>>>> CONSOLE 17777707 173064 >>>~ CONSOLE 17777707 173012 >>> User-defined address for Device DZ1: not found - device disabled. (this was there before) RSTS V8.0-07 EVERETT XXXXXXXX (DU0) INIT V8.0-07 Option: START Disk is being rebuilt - wait ... DU0 Error UDASA P.OPCD P.STS P.BCNT P.BUFF P.BUF2 P.LBN 000000 000241 000010 000000 000000 000000 000000 Unrecoverable disk error on DU0 PC=121232 PS=030341 OV=000022 M5=001600 M6=003242 SP=041266 R0=000000 R1=077777 R2=042125 R3=172150 R4=041410 R5=140026 SP-> 026220 000006 000002 150103 000001 041410 Fatal RSTS/E system initialization error! Option: HELP The valid RSTS initialization options are: DSKINT Initialize disk to RSTS file structure COPY Copy minimal system to disk PATCH Patch a file HARDWR Set controller characteristics INSTALL Install a monitor SIL REFRESH Manipulate files in [0,1] DEFAULT Set monitor defaults SET Set device characteristics START Start timesharing <LF> Start timesharing (fast) BOOT Bootstrap a device SAVRES SAVE or RESTORE a RSTS/E disk IDENT Display version of INIT and installed SIL HELP Type this HELP message FILL Set console fill for INIT Only the first two characters need be typed. Option: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I would guess it has disk/File problems of some sort. I know very little about RSTS and it looks like its a steep learning curve. The second drive has some kind of internal control problems and shuts off if it is accessed by the 11/44. it was left (Off). The system has been setting for 10 years before I got it. I try to keep each system intack if possible. The Dead TU80 is my next project. On the bright side it did come with a SCSI card. Thanks, Jerry Jerry Wright JLC inc g-wright at att.net

20 years, 2 months

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unibus RX11 vs RX211

by brad＠heeltoe.com

Hi, Finally getting around to some spring pdp-11 hacking. I managed to boot 2.11BSD on my 11/44 this morning :-) Now I want to (slowly) add peripherals. I discovered I have an RX11 board (quad width) and I think I want to try and connect it to an RX02 drive box. Anyone know the basic difference between an RX11 and an RX211? Can you plug an RX02 into an RX01? I really only want RX01 to be honest. Something tells me I need an RX211 but i thought i'd be lazy and ask here. M7846 RX11 U RX01 floppy disk controller M8256 RX211 U RX02 floppy disk controller -brad

20 years, 2 months

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atari printers - gears

by r_a_feldman＠hotmail.com

Tony Duell wrote: >Message: 33 >Date: Sun, 11 Jun 2006 22:24:50 +0100 (BST) >From: ard at p850ug1.demon.co.uk (Tony Duell) >Subject: Re: atari printers - gears >To: cctalk at classiccmp.org >Message-ID: <m1FpXQX-000IxxC at p850ug1> >Content-Type: text/plain >> >>On 6/11/06, Chuck Guzis <cclist at sydex.com> wrote: >> > You can just throw your bad one away and get a new one. There's a guy >> > selling 825 printers for $10 the each, NOS on Yahoo!: >> >>That's one of the reasons I bought a handful of printer mechs from >>Alltronics or Electronic Goldmine or one of those guys... spare gears. >> The problem is that what I got was about 90% defective. >That was my first thought. These gears don't fail because they wear out in >use, they fail due to stresses generated by them being pushed onto the >speindle. Severaal of mine have failed without being used. > >Personally, I'd want to use a metal gear that was a sliding fit onto the >motor sprindle, and then fix it on with a suitable Loctite. > >Somebody else suggested replacing all 3 gears in each train. Difficult. The >last gear is part of the platten or cable drum, and is, in fact 2 gears wit >han anti-backlash spring IIRC. All these parts could be made, but you're >not going to find them off-the-shelf. And if you're going to start 'm,king >swarf'[1], why not just make the pinion you need. > >[1] A common UK expresion for doing home machining, for the obvious reason. >-tony This topic came up several years ago. At that time, I emailed Tony about a shop in Letchworth Garden City, Hertfordshire, that makes gears for model railroad locomotives (I recently emailed Ethan offlist with the same information). I don't recall if Tony ever checked them out. I'd contact them myself, but I don't have an Atari printers to measure the gear. Anyway, for the information of the whole list, they are: Gear Services (Letchworth) Ltd., The Wynd East, The Wynd, Letchworth Garden City, Hertfordshire, SG6 3EL United Kingdom. Tel: +44 (0) 1462 685327 Fax: +44 (0) 1462 677821 Their Web site is http://www.ultrascale.co.uk/ggs0001.php. They can produce the following spur gears: 48 DP from 12 teeth upwards 60 DP from 12 teeth upwards 64 DP from 13 teeth upwards 72 DP from 13 teeth upwards 96 DP from 18 teeth upwards 100 DP from 15 teeth upwards 0.4 MOD. from 21 teeth upwards 0.5 MOD. from 15 teeth upwards The price for a small gear (e.g., 15 tooth 100DP) is /Pounds 1.11, so it should not be outrageous to have a custom gear made. Bob

20 years, 2 months

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Tandy 1000 RLX (PC_ish) to good home...

by zmerch-cctalk＠30below.com

Old "Pizza-box" style PC - Dunno if it's a '286, but it's about that class of machine. Comes with an internal IDE drive (usually 40Meg - and was Tandy's "SmartDrive" version, which I *think* was one of the rare 8-bit compatible IDE drives). Built-in VGA, 1.44Meg Floppy, one expansion slot (I would assume ISA, but don't quote me) comes with DeskMate, with IIRC the "Recipe" option; as this was designed/marketed (believe it or not) as a "Kitchen Computer," again IIRC. These were designed/marketed slightly *after* I worked for Tandy as a sales monkey; I mostly knew/sold the units in the SX/SL/TX/TL/TL2/TL3 class of machines. VGM-220 Monitor, printer (DMP-130? - I'd have to look again) and manuals. Some docs; I didn't take inventory. Does not have a keyboard - it uses a Mini-DIN-6, but I don't know if they use an AT-compatible keyboard, or one of Tandy's own creations. Haven't tested it, but I can. If no takers by VCM-MW 2.0, it may enter an "undefined" state. It *may* become "more classic" by gutting the case for a nice compact CoCo3 repackage, or it *may* become "less classic" by retrofitting a MiniITX-like motherboard & turn it into a Linux router or fileserver. Either way, I have no use for the hardware as-is, so either save it from the evil "Merch" who intends to use it for cruel & disgusting things, or weep quietly enough that you don't disturb my maniacal laughing as it gets renamed Igor & goes on the operating table... ;^> Laterz, Roger "Merch" Merchberger -- Roger "Merch" Merchberger -- SysAdmin, Iceberg Computers zmerch at 30below.com Hi! I am a .signature virus. Copy me into your .signature to join in!

20 years, 2 months

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Vintage computer diagrams scanning

by aek＠bitsavers.org

Al Kosso mentioned a while back that he might help do this and i was wondering if the 11 X 17 pages are hard to do or if they can be done on his scanner or another??? -- They are easy to do. My scanner handles 11 x 17 double sided.

20 years, 2 months

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Paratronics Bus Grabber

by dgriffi＠cs.csubak.edu

I just now unearthed this little gem, a Paratronics Bus Grabber. It's composed of an S100 board and a 4-inch square mini front panel less blinkenlights. Anyone remember this thing or know where I can find docs for it? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

20 years, 2 months

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ClassicCMP.org direction

by jwest＠classiccmp.org

I've been alluding to some things in the works for the ClassicCMP.org website and ClassicCMP.org as a whole, mailing list included. I wanted to give a heads up that I will be posting a long list of all the things I've been considering and/or actively planned in a few minutes. Most of the items on this list have been planned for over a year. Quite some time ago I asked for listmembers to volunteer to help with development on the classiccmp website. One member spearheaded the new look, but then had a variety of work issues, sabbatical, paying projects, etc. come up. He's getting back to the project, so he has the same list that I'm going to post here momentarily. Based on the size of the work on the list, I'm sure he'd be willing to accept volunteers to help in the coding. The goal is to move more towards ClassicCMP.org being a tier1 resource for vintage computer collectors and hobbyists - a full fledged resource and not just a mailing list - a launching board to other sites as well. I'm not trying to hurt anyone elses website or resources. I just want ClassicCMP.org to be more of a branded entity, and provide a large de-facto starting spot for collectors and hobbyists. Not just a mailing list. Bear in mind that many of the things on the "to-do" list are still ideas being formed. Some may prove not to be practical after further thought. But, I wanted to at least show people where I planned to head. If you have words of encouragement or further suggestions I'd LOVE to hear them. I'd love to hear reasons why some of the ideas are bad (but that doesn't necessarily mean I won't do them anyway). The new look is at http://dev.classiccmp.org Best regards, Jay West

20 years, 2 months

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Welcome home DG Nova 3 System

by rborsuk＠colourfull.com

Hi All, Thought some of you might want to see my new (? old) Nova 3 System. This system came courtesy of Bob H. who was the owner for several years and thought it might be time to send it to a new home (mine) (yeah!). Here's some pics. http://homepage.mac.com/irisworld/PhotoAlbum3.html Enjoy, Rob

20 years, 2 months

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Top Posting and Message Trimming

by marvin＠rain.org

> Jim Leonard trixter at oldskool.org > > I get far more annoyed at: > > > > 1) long posts with one liners inserted someplace. > > 2) not trimming out parts of a message not being responded to. > > 3) not changing the subject line to reflect the content. > > 4) not putting a space between the portion of the message being responded to, > > and the comments. > > These are people who don't quote properly. Don't damn quoting just > because some people don't do it eloquently. Don't put words in my mouth I didn't say; I am not damning quoting, inline posting, top posting, or anything else. My point is that communication rather than form is the goal!

20 years, 2 months

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Vintage computer diagrams scanning

by Billy.Pettit＠wdc.com

* BOB LAAG wrote: ________________________________ I was wondering about getting some of the diagrams and text documentation scanner and made available for those needing it... I have stuff for Computer Automation Alpha-16 and LSI-2 with the diagrams being on 11 X 17 sheets... I called around and it seemed that they wanted $5 a page, and this just sounded like a rip off... Al Kosso mentioned a while back that he might help do this and i was wondering if the 11 X 17 pages are hard to do or if they can be done on his scanner or another??? I am in so. cal. in Riverside.... --------------------------------------------- Billy: Bob, I see Al has already answered you that he can do it. If you want, I can do it also. I have a Microtek 9600X on an old Apple G4 system. Al's is faster and duplex. But mine does color which is likely not important. Either of us will glad to help you. I will send the TIFF files to Al so he can convert them and link them to put on his site One big difference is that Al is in the Bay area. I'm in Laguna Woods, right off of I-5. So you could come over, get them scanned and then take them home. I stay down in Orange County around 3 weekends a month; the other one I go up to the Bay area. Billy

20 years, 2 months

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looking for two Kennedy 9100 tape drive terminator cards

by henk.gooijen＠oce.com

I have found a chap in The Netherlands (!) who also has a Kennedy 9100 tape drive. I asked him, and he checked: his tape drive is also *without* the two terminator cards. As a reminder, they are: card cage slot #3: "data terminator", part number 190-3860-001, and slot #8: "control terminator", part number 190-3841-001. BTW, these cards are also used in the Kennedy 9000 tape drive. Is somebody on the list, who has a Kennedy 9100, and is willing to look at the card cage (at the left side, looked from the front side to the drive)? The most-left card is #1 ... Or can somebody confirm that these card *must* be installed, or can indeed be left out? thanks, - Henk. This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.

20 years, 2 months

1
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fun for the EE guys (board design)

by compoobah＠valleyimplants.com

Found a problem in my IRIS 3k - didn't have a terminator on the IM1 memory bus. I doubt that this is still available through retail channels Gerhard helped quite a lot by taking pictures of the board and giving a description of where it went, now I need to fab one. The board looks to be 4-layer (front&back traces with power and ground planes), which is a bit difficult to do at home. This runs in a 16MHz 68k system. Would it be possible to fab it using a barely-etched dual sided board for power/ground planes and running point-to-point wires for the signals, or is this asking for trouble as far as timing issues go? Termination is standard 331/331 resistors. Scott Quinn

20 years, 2 months

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floppies and the SCB6120

by dgriffi＠cs.csubak.edu

For comepleteness and just for fun, shouldn't the SBC6120 be able to support floppy disks? How hard would it be to come up with an interface board? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

20 years, 2 months

2
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atari printers - gears

by pete＠dunnington.plus.com

On Jun 12 2006, 1:30, Philip Pemberton wrote: > Tony Duell wrote: > > Personally, I'd want to use a metal gear that was a sliding fit onto the + > > motor sprindle, and then fix it on with a suitable Loctite. >ues whoch p > I'd be tempted to file a flat section on the shaft and add a matching flat to > the gear, or use a small screw to fix it. I'm not sure what the lifetime of > Loctite is, but I wouldn't want to be pulling a plotter apart a few years down > the line just to put some more glue on a gear... >From memory, the gear is too small to make that practical, even an M2 would be far too big. Tony is talking about engineering Loctite designed to fit parts onto cylindrical shafts, not not superglue, and the life is decades. I've got model steam engine axles assembled that way in the 1970s. -- Pete Peter Turnbull Network Manager University of York

20 years, 2 months

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Fun for the EE guys (board design)

by compoobah＠valleyimplants.com

>> This board is plugged into the two connectors of the last memory board >>in the chain. The cables are then connected to the terminator instead >>of the board itself. >Huh? Perhaps you mean that the way the board connects to >the rest of the machine is *through* the cables (i.e. there >is not some other set of connectors on the board that plug >into a "backplane")? So, *normally* the cables plug into the >memory board but, on the last board, the terminator sits >"between" the cables and the board? >In other words, any solution *must* have 4 connectors on it >(you can't just take two INDIVIDUAL connectors and solder >the RPAK's onto the back of those connectors (i.e. skip the >PCB entirely!) I think that I could probably get away without putting on the pass-through. My IM2 cable has 4 extra positions (IP2 + 1 IM2 are boards installed) I think it unlikely that I will come across enough boards to where I would need the pass-through (would need a FPA + 3 extra IM2s). I (not being an EE) wasn't sure about the seriousness of the crosstalk/unwanted reactance problem on computer busses. The downside to soldering directly onto cables is that there is a separate power feed for the voltage divider network that must be accounted for. Wire-wrap holds distinct possibilities, though. While I'm messing around with this, does anyone else have an IRIS 3k sans terminators? Scott Quinn

20 years, 2 months

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display scope options

by chd_1＠nktelco.net

What options would I have for some kind of display scope for my PDP-8/e? I have a VC8/I-like point plot controller that I built last spring and I want a display for it. So far I have used a 100Mhz HP storage scope. But that is my primary debugging tool, so I want something that I can dedicate to the display purpose permanently. The DEC display would be a VR14, but I don't recall ever seeing one of these available. Basically what I need is an X-Y-Z oscilloscope with a reasonably persistent phosphor. -chuck

20 years, 2 months

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Repair methods (was Cromemco 3101/Beehive B150 score)

by roger.holmes＠microspot.co.uk

> >> An interesting question. >> >> If you have a module of the same age, I don't see any problem with a >> module swap. > > My main objection, actually, is to _random_ module-swapping, as > suggested > by certain HP calculator service manuals. How you can _know_ the fault > has been cured if you don't know what/where it is is beyond me. With a modern machine with just three or four modules (say power supply, logic board and one RAM module) then you take an informed guess and can swap modules until you guess right, unless of course a module you did not swap causes failure of another module. Then it gets expensive. On my old machine, with 4500 separate PCBs, its out of the question. I have to fault find down to where a signal fails, and then comes the interesting bit with a wire-or machine, which of the OR inputs is dragging a signal down to -6.3 volts? Or is it a short circuit to a supply rail? Sometimes insulating individual signals helps, sometimes it easiest to swap one module at a time until the problem goes away. > >> That's what I do, but my modules are probably logically rather >> smaller. One printed >> circuit board holds one 3 input not-J not-K flip-flop. Another type >> has four And gates. > > But why not repair them? I can't believe they're that complicated > to test > or debug. And I would have thought the components were a lot easier to > find than complete modules. I have scrapped an almost complete machine, so I have many of the commonest modules. I understand digital electronics but I find it hard to get my head around the analogue electronics on the boards. Testing bare components is hard enough but testing them in circuit is tricky, especially if they require half a dozen different supply rails at weird voltages such as -18.0 -17.1, -12.6, -6.3, -4.6, -2 and +12.6. 1960s components which look right are not easy to get new. The resistors all have two green bands where you would expect to find a gold or silver band. Electrolytics capacitors are all orange coloured, and bigger than their modern equivalents. I have not seen any GET872 transistors for sale for a long time, and the last time I saw an OA5 diode in the RS catalogue they were a pound each. So when I run out of modules I will be down to taking components of boards, testing them and soldering them onto other boards. Several of the modules have multiple circuits (e.g 4 AND gates) on them, so that makes it a lot easier. Surprisingly I have had success lately getting big Thyratron valves on e-bay, though they all seem to be on the American continent, which pushes up costs, what with shipping charges, VAT(tax) and handling charges. The thyrotrons are inside the magnetic tape decks were built by Ampex in the States, though the rest of the machine is British, using British components and built like a battleship. Oh, except the Card Punch, which is to an IBM design dating way back to the days when BTM (British Tabulating Machine company) were the licensees for all IBM technology throughout the British Empire. The basic mechanism has been seen with 'Lease-Lend' stickers on it, though the electronics underneath has been radically modified. I will not ramble on any more. > >> When I eventually run low on spare modules I will have to start >> component level >> repair, hopefully being able to make 3 good modules out of 4 bad >> ones. > > That is one reason why you should never throw away a defective PCB. It > might well be repairable later, or you might be able to use parts > from it > to fix another board. Absolutely, though I have sold common ones on e-Bay as novelties/ souvenirs. > OK, 'almost never' -- ISA cards with one ASIC and > not much else don't count :-) No, not much hope there. Roger Holmes. 1962 ICT 1301 mainframe nut (and Apple software author)

20 years, 2 months

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DEC hamfest finds

by aw288＠osfn.org

Today's show yeilded one seller with a bunch of DEC PDP-8 cable and Flip Chip scrap - sort of handy, because that DEC coax ribbon cable is not common. Another seller had a LINCscope. This rackmount scope has the oddball DEC LINC-8 custom plugins, but the scope is an RM 564 (I think - the storage scope). Seems odd, although the vendor said the plugins were original to the scope. So the question is - did LINC-8s ever get fitted with storage scopes? William Donzelli aw288 at osfn.org

20 years, 2 months

1
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Raylan Ethernet hubs available

by ddl-cctech＠danlan.com

I have three Raylan modular 10Base hubs available with many 10BaseFl modules, ~4 10BaseT modules, and a couple of 10Base2 modules. If you don't know what these are (and possibly if you do :) you probably do not want them. This appears to be a picture of one, though I'm not sure why they are showing such old equipment: http://www.fiberopticsonline.com/Content/ProductShowcase/product.asp?DocID=… As usual, price is $0 plus shipping... Dan Lanciani ddl at danlan.*com

20 years, 2 months

1
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DN10000s

by g-wright＠worldnet.att.net

Message: 9 Date: Sun, 11 Jun 2006 00:32:44 -0700 On Jun 10, 2006, at 6:04 PM, Scott Quinn wrote: >> FAA had, I think, some in-house S/W on their Apollos- what did >> Boeing use on them? > > >>They ran a document publishing system built loosely around Interleaf, >>>or at least that's the application that prevented them from getting >>>rid of their Apollos long ago. >>ok >>bear -- As far as I know Boeing is still using Apollo's in some places. They where one of the largest users of Apollo's and had large amounts of there own software running on them. Most of this was for Airplane testing and development. This is what kept the Apollo's around for so long. Someone in the Seattle area had mentioned that they needed a keyboard for an Apollo. Just contact me off list. I still have a few. - Jerry Jerry Wright g-wright at att.net

20 years, 2 months

1
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Vintage computer diagrams scanning

by RLAAG＠PACBELL.NET

I was wondering about getting some of the diagrams and text documentation scanner and made available for those needing it... I have stuff for Computer Automation Alpha-16 and LSI-2 with the diagrams being on 11 X 17 sheets... I called around and it seemed that they wanted $5 a page, and this just sounded like a rip off... Al Kosso mentioned a while back that he might help do this and i was wondering if the 11 X 17 pages are hard to do or if they can be done on his scanner or another??? I am in so. cal. in Riverside...

20 years, 2 months

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by chrism3667＠yahoo.com

dude...I wasnt taking personal at all. I was just pointing something out. It happens to me alot! LoL. Maybe it has something to do with all those banana peels... --- cctech-bounces at classiccmp.org <jwest at classiccmp.org> wrote: > Chris M wrote... > > sorry, but it always seems to be the person who > > responds to name calling with name calling who gets > > the reprimand. > > Well then officially and in plain sight, let me say that I post a reprimand > while reading a thread and it may or may not be the primary offender. > > I don't read every thread on the list. It's possible I stumble across > something after several things have gone on already. It's a whole lot easier > for me to just shout out "don't make me turn this car around..." than it is > to go back and figure out who started it and who was the "worse" offender ;) > > Loosely translated, don't take it personally :> > > Jay > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

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DN10000s

by aek＠bitsavers.org

> Apollo should have open-documented their stuff. Yup.. A huge problem for Apollo historical preservation. I don't even know what might still exist inside HP for the early stuff.

20 years, 2 months

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DN10000s

by compoobah＠valleyimplants.com

>>> Apollo should have open-documented their stuff. >>Yup.. A huge problem for Apollo historical preservation. >>I don't even know what might still exist inside HP for the early >>stuff. >Absolutely nothing, and that's confirmed. Boeing was the last >existing Apollo customer with systems still in production until >September of 2005. The final three years of which all hardware >maintenance was performed in-house, scavenging parts from >decomissioned machines. All leftover parts cleared surplus by >CYE2005, which is a pity as I owed DOMAIN keyboards to a few folks >and now I am not sure if I'll be able to make good on it. >I think the FAA were the second-to-last existing Apollo customer. Not >sure when they finally retired their last systems, but it was years >before Boeing did. FAA had, I think, some in-house S/W on their Apollos- what did Boeing use on them? Scott Quinn P.S. - I got one of those last-dump Apollos- there weren't any keyboards or mice at Boeing, but still several 425es. I was kind of wondering if they used them as Apollos or HP 9ks. Now I know.

20 years, 2 months

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by chrism3667＠yahoo.com

sorry, but it always seems to be the person who responds to name calling with name calling who gets the reprimand. He simply could have said that IHHO it wasnt a good idea or whatever. No...it gets insinuated Im smoking banana peals and that I make silly suggestions. Im afraid I found it a little offensive. --- cctech-bounces at classiccmp.org <jwest at classiccmp.org> wrote: > Chris M wrote.... > > And regardless of what he uses/collects, there was a > > better answer again IIMMHHOO. I offered an opinion > > dopey-boy. Maybe you're the silly rube after all. > > Please be civil on the list. > > Jay __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

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EU

by chrism3667＠yahoo.com

so if someone puts a readable image of 2 facing pages of text in front of you, will all that stuph you typed still mean that much? And desperate as in the device now being used by libraries to archive countless tomes, the link to which was posted here a couple of months ago? Desperate or not, I refuse to sit and flip a book over ~500 times. I have obtained very suitable results with a cheap Aiptek Pencam SD (1.2mp) - on the first try! And image enhancement is possible if the results are less then desireable --- cctech-bounces at classiccmp.org <frustum at pacbell.net> wrote: > Chris M wrote: > > now an even better idea then a scanner is a digital > > camera. 2 - 3 megapixels (even 1.2!) is sufficient for > > archiving text and graphics. It MUST have the ability > > where you can vary the focal length (able to move a > > fixed focus lense in and out in relation to the image > > sensor. And you thought I wasnt going to say that all > > wrong?). I would also deem ancillary storage (i.e > > cflash etc) a necessity. Cheaper to ship then a > > scanner. Flat bed scanners are unwieldy, especially > > when it comes to archiving bound stuph. > > What you propose is something to do if you are desperate, but not > something you'd want to do routinely. > > Taking a picture of an 8.5" x 11" sheet of paper with a 1.2 mpix camera > would get you 113 DPI. > > In reality, it is worse than that. 99% of all digital cameras lie about > their DPI -- a 1.2 mpix camera doesn't have 1.2 mpix red, 1.2m green, > 1.2m blue sensors. Different sensors have different patterns, but > essentially they count each r, g, or b subsample as a pixel and > interpolate. a common pattern is a tiling like this > > R G B G > G B G R > > Heavy duty image processing does its darnedest to hide this fact, but it > is obvious in certain circumstances. Take a picture of a B&W newspaper > from some distance where you will get some aliasing and then look at the > picture -- you'll get lots of color fringing. The only camera sensor > that doesn't do this is the one from foveon: > > http://www.foveon.com/ > > This is a nice tie in to classiccmp -- the CEO of Foveon is Federico > Faggin, co designer of the 8080 and co-founder of Zilog. > > Finally, the linearity of cameras is horrible for work like this, so the > effective DPI will drop even lower. > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

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ComputerVision CADDstation 32

by compoobah＠valleyimplants.com

No takers on the CV yet- I'm a bit disappointed since this is (IMO) one of the more interesting machines in my stable. The fact that no one offered anything in trade isn't too surprising (I just didn't want to turn anyone down if they had a MVAX 3100 or a DEC AXP in their garage that they didn't know what to do with...) What is surprising is that no one expressed any interest at all Perhaps it was because I forgot to say where it was - Renton, Washington (Western side), ZIP 98058 Bribes still accepted, but not required (if that wasn't clear from the first posting). Scott Quinn

20 years, 2 months

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Mis-categorized and not cheap...

by wh.sudbrink＠verizon.net

but in case someone wants a SOL-20 really bad... ebay item: 8825526106 Starting bid is at the top of the value range (IMO) so I don't thing anybody is going to snipe it.

20 years, 2 months

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New version of PDP-10 & -11 OS to Layered Product XRef

by healyzh＠aracnet.com

After 3 years, I've been able to update the PDP-10 and PDP-11 OS to Layered Products Cross-reference. I ran across a pile of RSTS/E and Micro/RSTS SPD's yesterday. As a result there is now info on Micro/RSTS V2.0 and V2.1, and RSTS/E V9.2-9.6. http://www.aracnet.com/~healyzh/PDP-10_11_OS_xref(V2b).pdf As always, if anyone can provide information to help update this, I'd appreciate it. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | MONK::HEALYZH (DECnet) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

20 years, 2 months

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DECnet network at VCF Midwest 2.0?

by aijones2＠bsu.edu

>Hey, is anyone here interested in getting an ethernet DECnet network >together at VCFMW? > >I'll be bringing my PDP11 which has DECnet/E on it :) I recently obtained SGI 4DDN 4.1, so I'm seriously considering bringing a DECnet-capable Indy if I can work out the licensing bullshit...

20 years, 2 months

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New Altair32 "hardware"

by dm561＠torfree.net

On Behalf Of Ethan Dicks On 6/9/06, Cini, Richard <Richard.Cini at wachovia.com> wrote: > All: > > I want to add a real time clock to the Altair32 but I want > to throw this out there for comment. Would one rather use a "faceless" > RTC (like the Compu/Time) or one with an on-screen display like the > Hayes Chronograph? The Compu/Time is very easy (nearly done coding) but > the Chronograph would be prettier. Personally? The Chronograph. I have a real one, so, of course, I'm biased. I've often contemplated making a Chronograph emulator, but it would take a graphical LCD; a 20x4 Text LCD can't quite do it justice (because of the day-of-the-week at the top of a real Chronograph's VFD). -ethan ----------------- Reply: Some older VCRs had a similar display, with the weekdays across the top; shouldn't be too hard to find one at the curb. mike

20 years, 2 months

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Repair methods (was Cromemco 3101/Beehive B150 score)

by roger.holmes＠microspot.co.uk

>> >> With a modern machine with just three or four modules (say power >> supply, >> logic board and one RAM module) then you take an informed guess >> and can >> swap modules until you guess right, unless of course a module you did >> not >> swap causes failure of another module. Then it gets expensive. > > That is _exactly_ what I object to. Fault finding is not (or rather > should not) be bbased on guesswork. Unless you've found the fault > logically, you can't know you've fixed it. For modern machines, that is the way the manufacturer wants it done, when doing warranty work, they will not pay for true diagnostic work. My company is not even required to have an oscilloscope, though we were until recently required to have an implosion booth with a mirror for when calibrating a CRT monitor or changing a CRT. Now all the CRT monitors are out of warranty and they only sell LCD displays we have taken it apart. > I've got stories of where a problem in one module appeared to be > cured by > replacing a different one that was, say, more tolerant of timing > errors > on one of the signals. Of course the problem came back as the timing > error (which was the original fault) got worse. Yes, and of course maybe the temperature had changed slightly or the voltage had drifted. Four of the power rails in the 1301 are fitted with marginal check facilities, it is possible to switch them off of the standard power stabilisers and wind them up and down via knobs on the machine's front panel. There is also a facility for varying the clock rate up and down. In service, engineers were issued with special hammers to hit the printed circuit boards with to check that vibration did not cause a failure. In all there are about 100 power supplies in the machine, and nearly all have potentiometers hidden away under the covers which adjust the voltages. > > And this is one reason I don't have a modern computer. I don't have > (and > can't afford) the necessary test gear to be able to _prove_ which > module > is at fault. > >> I have scrapped an almost complete machine, so I have many of the >> commonest >> modules. I understand digital electronics but I find it hard to get >> my head around >> the analogue electronics on the boards. Testing bare components is > > 'Digital circuits are built from Analogue parts' (one of Vonada's > lawas > IIRC). > > I haev never understood how you can understand digitial electronics > properly and not understand analogue electronics. I certaimly couldn't > understnad digital stuff until I understood things like transmision > lines, termination, etc. There is a big difference between fault finding digital electronics and designing digital electronics. Where there is an analogue signal, like in the Drum Write amplifiers I can cope with that, but there is some weird stuff, like there is a piece of what looks like 4 inches of coaxial cable - which is apparently a delay line and the signal bounces off the far end and comes back a bit later. There are 250 of these in the core store, they never go wrong, but the boards they are on tend to burn out one of their resistors frequently, and the core store itself is a current device, so fault finding with voltage based instruments can be tricky. What I find difficult in an analogue circuit is finding the order of what drives what. Sometimes its easy, but often the circuit diagrams are drawn in an illogical order, and sometimes there really is deliberate feed back, the flip flop is an obvious example. One time one of the three phase transformers was frying, it was in a very awkward place. I pulled the output fuses and it continued to fry. Eventually I changed it and the new one did the same, it was the three phase bridge rectifier (six big diodes) which was shorting out, I had not realised it came before the three fuses (feeding three circuits) rather being on the three secondaries of the transformer. Yes I should have checked the circuit diagram, but that meant searching through several hundred circuit diagrams, and I thought I knew what was doing. Wrong! Anyway, no harm done. > > >> hard enough >> but testing them in circuit is tricky, especially if they require >> half a dozen different >> supply rails at weird voltages such as -18.0 -17.1, -12.6, -6.3, >> -4.6, -2 and +12.6. > > I think if I had a machine like that to maintain, I'd make up a > test rig, > with a power supply giving those voltages. I have thought about it, its one of those things I will do when I get a round tuit. > > >> >> 1960s components which look right are not easy to get new. The > > To be honest, I don't care too much about the appearance of the > components, provided they are electrically correct. There are > certainly a > few obvious modern replacements in my 1968 HP9100B. But I am hoping a museum will take it sometime as a working exhibit, it is the last working one if its kind, and at one time its type was about 25% of the computers in Britain. Its biggest selling point was pounds shillings and pence in hardware. Then the IBM 360 came along and wiped the floor with all the other computer makers. What museums hate to see is modern components, so where there is a choice I stay with original parts, and always keep the original faulty parts when I have to use modern - such as when I put an old Apple switch mode power supply in place of an old supply which used a transformer which is no longer available. Actually there were several identical power supplies in that Paper Tape Reader, and they all plugged into a big connector which had links to configure the power supply for the required voltage needed in that position. I put the duff one in a position where the required voltage was nearest to the Apple's voltage (I think it was -17.1 volts, so I used the -12 and +5 volt rails and kept the other voltages, including ground and the case insulated). Roger.

20 years, 2 months

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stuff I got dumped to me today :)

by Watzman＠neo.rr.com

Re: "1) A mint condition Heathkit H27 (dual 8" floppy drive for H11). Wonder if it's usable on anything else?" Yes, it is. The box has two absolutely garden variety standard Memorex 550 8-inch floppy disk drives in it (SSSD). They have an absolutely standard 50-pin Shugart SA-801 compatible interface. They are currently connected to a controller located in the bottom compartment of the drive case, below the drives (I think it's a single board computer with a Z-80 and a 1771 on it, but my memory isn't that good). Anyway, disconnect the cables going to the built-in controller, and connect your own 50-pin ribbon cable, and you can use the drives, cabinet and power supply with almost any system that takes "standard" (e.g. Shugart compatible) single sided 8" drives.

20 years, 2 months

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EU

by chrism3667＠yahoo.com

now an even better idea then a scanner is a digital camera. 2 - 3 megapixels (even 1.2!) is sufficient for archiving text and graphics. It MUST have the ability where you can vary the focal length (able to move a fixed focus lense in and out in relation to the image sensor. And you thought I wasnt going to say that all wrong?). I would also deem ancillary storage (i.e cflash etc) a necessity. Cheaper to ship then a scanner. Flat bed scanners are unwieldy, especially when it comes to archiving bound stuph. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

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please join the list if not subscribed

by jwest＠classiccmp.org

There is actually a pretty substantial amount of people posting to the list regularly who are not members from the email address they regularly post from. I'm betting this is mostly due to people who are posting from email addresses other than the ones they typically receive list traffic on. Please take the time to subscribe to the list from all the email addresses you want to post from (this won't cause duplicates if you set the 'no-email' flag to yes for that email address'es subscription). If you won't bother to take the time to register your email addresses, then you can't expect me to take the time to approve all your regular postings manually. They'll get rejected. Thanks! Jay West

20 years, 2 months

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30 pin 2MB SIMMs

by trag＠io.com

>Date: Mon, 29 May 2006 23:58:48 -0300 >From: "Alexandre Souza" <alexandre-listas at e-secure.com.br> > Well, there is - believe it or not - 16MB 30-pin SIMM. I always thought >it was a mistake, but I saw that with my own eyes. Unbeliaveable as it can >be, there is only ONE equipment I saw using that, which is a Equinox (or >Ensoniq?) music keyboard. It was the first and last time. I hadn't ever >stopped to think how can it be possible (maybe a non-standard pinout) but it >is true indeed, 16 MB SIMMs, four of them making 64MB. Believe it or not. The 16 MB 30 pin SIMM is not uncommon in the early Macintosh World. The Mac II used 30 pin SIMMs and had a theoretical maximum of 128 MB of RAM when all eight sockets were populated with 16 MB SIMMs. I write "theoretical" because I think that there were *details* until the SE/30 and IIcx came out around 1989. The IIx (later than the II, but earlier than the SE/30 and IIcx) required PAL SIMMs (not sure what these were, except they apparently had a PAL on board) to use larger capacity SIMMs. Anyway, the SE/30, IIcx and IIci all had eight SIMM sockets capable of using 16 MB 30 pin SIMMs giving a 128 MB memory capacity back in the very late 80s and early 90s. Quite a forward looking memory capacity for the day. Of course, it was years before you could actually get SIMMs with such high capacities. Later Apple Mac models with the same CPU chips were built with lower maximum RAM capacities for no apparent reason other than marketing weenies. Compare, e.g., the SE/30 and the Classic II or Color Classic. The pinout is standard. There are 12 address lines available on the 30 pin SIMM, giving a multiplexed address of 24 bits which translates to 16M addresses. Pin Name Description 1 VCC +5 VDC 2 /CAS Column Address Strobe 3 DQ0 Data 0 4 A0 Address 0 5 A1 Address 1 6 DQ1 Data 1 7 A2 Address 2 8 A3 Address 3 9 GND Ground 10 DQ2 Data 2 11 A4 Address 4 12 A5 Address 5 13 DQ3 Data 3 14 A6 Address 6 15 A7 Address 7 16 DQ4 Data 4 17 A8 Address 8 18 A9 Address 9 19 A10 Address 10 20 DQ5 Data 5 21 /WE Write Enable 22 GND Ground 23 DQ6 Data 6 24 A11 Address 11 25 DQ7 Data 7 26 QP Data Parity Out 27 /RAS Row Address Strobe 28 /CASP Something Parity ???? 29 DP Data Parity In 30 VCC +5 VDC Sets of four 30 pin 16MB SIMMs typically go for about $25 plus shipping on Ebay. Jeff Walther

20 years, 2 months

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EU

by chrism3667＠yahoo.com

I havent been following this thread thus far, but if anyone is shipping a scanner to the UK (unless this is a joke and I havent gotten it yet) and its not at least usb 1.1 compliant, they need to reconsider. Blowing bucks to ship an older technology is just dopey as all get out. Dont mean to be insulting, but in the interest of he getting something done (as image files take a considera ble time to upload from the scanner to the puter) let it be usb. I dont have a spare unfortunately though. --- cctech-bounces at classiccmp.org <cisin at xenosoft.com> wrote: > > > If some others would chip in on the shipping, I'd gladly send you a > > > scanner. Would you prefer SCSI or "Centronics"? > On Wed, 7 Jun 2006, Tony Duell wrote: > > I don't care, provided it comes with schematics and uses chips that I > > recognise :-) > > I kinda doubt that even the old HP scanners had schematics available. > However, the operation of a scanner is not too complex to reverse > engineer. > I guess that we still can't get you to accept one, even for free, without > open hardware source. > > > > Would you also like some early Pentium machines, a Beseler enlarger and a > > Pentium machines cannot be early :-) > > True > I meant relative to Pentiums. > > > > "dichroic" head, a Kodak Caramate, some printers and monitors, ...? > > As for the enlarger, I have enough problems hosuing my DeVere 504.... > > > > Howabout: a Fujinon holography camera? > > > 'course it's all 60Hz stuff. > > Does it _depend_ on the mains frequency? Votlage conversion is trivial (I > > have a 110V step-down transformer in the workshop anyway), frequency > > conversion can be more of an 'interesting' job. > > I'd be tempted to do it "mechanically", with a motor and generator. > 8" drives may need 50 v 60 Hz (or a change of pulley and belt). > But almost everything else recently is rectified to DC. > Most "modern" computers just want 5VDC, 12VDC, etc. > The only electronics in the holography camera is the power supply for the > laser tube. And since I don't have the original tube, a different power > supply is not a very big deal. > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 2 months

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New Altair32 "hardware"

by Richard.Cini＠wachovia.com

All: I want to add a real time clock to the Altair32 but I want to throw this out there for comment. Would one rather use a "faceless" RTC (like the Compu/Time) or one with an on-screen display like the Hayes Chronograph? The Compu/Time is very easy (nearly done coding) but the Chronograph would be prettier. Thoughts? Rich

20 years, 2 months

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