test-drb May 2004

test-drb@ccmp.vtda.org

244 participants
500 discussions

by aek＠spies.com

If they aren't already in PDF form, why not send the manuuals to Al and have him scan them - he's got a great scanner!! -- PLEASE! esp the V4A sysmgr manual, which is needed to revive the dectapes that were read. I can turn these VERY quickly and would be happy to cover postage both ways.

22 years

VT100 ROM 2 wanted [Was: Wanted: M9312 ROMs]

by pete＠dunnington.u-net.com

On May 28, 7:45, Gerold Pauler wrote: > Thanks, that is exactly what I am looking for. > But according to DECs VT100 Technical Manual it is ROM 2, > ROM 1 is the 23-031E2 or 23-061E2. > May be it's because they are counting from 1 not from 0. Ah, the chart I copied started at zero. -- Pete Peter Turnbull Network Manager University of York

22 years

Help identifying AppleII cards?

by dave04a＠dunfield.com

Picked up a IIe today - has a couple of cards in it that I have not seen before... #1 ISAAC INTERFACE BOARD D91A-8318 REVC Copyright 1981 by CYBORG CORP Large format card (large enough to slope down at front) Has an 6522 on it. Also has an external battery box that plugs into a small barrel jack at the front of the card. Has 6 pin terminal strip, plus two 34 pin ribbon cable headers. Small 4-position DIP switch at front, 8-position DIP switch farther back (under terminal strip). #2 No markings at all. Smaller card, slightly longer than Apple disk controller. Has a 20 pin header sticking out the back of the card. Has an RCA 1802 CPU on it! 2 2k EPROMS 1 6 position DIP switch. Anyone recognize these? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

22 years

VT100 ROM 2 wanted [Was: Wanted: M9312 ROMs]

by pete＠dunnington.u-net.com

On May 27, 21:44, Gerold Pauler wrote: > I think archiving ROM images is a very good idea. > I should have done this earlier. > > A few weeks ago my VT100 decided to give up on ROM 2. > So I am looking for an replacement or at least the image of ROM 2. > Even better if someone would have images of all VT100 ROMs. > Part No of my ROM 2 is 23-032E-00. > As of DEC VT100 schematics it should be a 2316. You mean 23-032E2, and it's actually ROM 1 according to my chart. It's at http://www.dunnington.u-net.com/public/DECROMs/ along with some others that have been there for quite a long time. Since there seems to be a demand, I'll put some of the rest of my collection there too. For the moment, my list of what all those ROMs are isn't up there, but it's on my ToDo list :-) What I do have is are "I have" and "wanted" lists: Wanted: ====== 23-031E2 VT100 terminal ROM 23-051L1 TQK50 Rev.D1 E3 ROM 23-094E2 VT100 extra chargen 23-095E2 VT100 extra chargen 23-096E2 VT100 extra chargen 23-097E2 VT132 extra chargen 23-098E2 VT132 extra chargen 23-139E2 VT100 terminal board ROM 23-140E2 VT100 terminal board ROM 23-158E4 early KDF11-BE boot ROMs 23-159E4 early KDF11-BE boot ROMs 23-170E5 TQK50 ROMs, rev.1 23-171E5 TQK50 ROMs, rev.1 23-178E5 RQDX2 T-11 code, issue 1 (V10.0D) 23-179E5 RQDX2 T-11 code, issue 1 (V10.0D) 23-180E2 VT132 terminal board ROM 23-180E5 TQK50 ROMs, rev.2 (C1) 23-181E2 VT132 terminal board ROM23-183E2 23-181E5 TQK50 ROMs, rev.2 (C1) 23-183E2 VT132 terminal board ROM23-183E2 23-216E5 RQDX3 T-11 code issue 1 23-217E5 RQDX3 T-11 code issue 1 23-451E4 DELUA ROMs 23-452E4 DELUA ROMs I have: ====== 23-032E2 23-110E6 23-173E5 23-254E6 23-340E2 F311-103 23-033E2 23-111E6 23-183E4 23-261E5 23-340E5 F311-123 23-034E2 23-115E4 23-184E4 23-262E5 23-380E4 MRV11BArom 23-039D1 23-116E4 23-188E5 23-264E4 23-381E4 MXV11A_x0 23-040D1 23-126E4 23-189E5 23-265E4 23-381E6 MXV11A_x1 23-042E5 23-127E4 23-208E5 23-285E5 23-382E6 23-043E5 23-145E4 23-209E5 23-286E5 23-383E5 23-045E2 23-146E4 23-238E4 23-334E5 23-384E5 23-046E2 23-168E5 23-239E4 23-335E5 23-398E4 23-054E7 23-169E5 23-243E5 23-339E2 23-399E4 23-061E2 23-172E5 23-244E5 23-339E5 23-453E6 The F311 images are for a Baydel QBus floppy controller, the MRV11BArom is a fusible-link PROM image, the MXV11A images are from a custom set. These are all 8-bit (or in a very few caes 16-bit) wide ROMs suitable for conventional EPROMs. -- Pete Peter Turnbull Network Manager University of York

22 years

Digitizing Datapoint 2200 cassettes

by aek＠spies.com

I received a non-working (anyone have the service manual?) 2200 this past week with 15 cassettes and some manuals. The manuals are now up on Bitsavers, and I tried digitizing the cassettes using the audio input on one of my macs. Looks like it should be decodable in software even though it's slowed down from the normal 7 1/2 ips tape speed. If anyone has any other tapes, I'd be VERY interested in trying to decode the data from them, and also scanning any other manuals that might be available.

22 years

What's the weirdest thing that you've ever found inside a computer?

by pete＠dunnington.u-net.com

On May 26, 13:07, Fred Cisin wrote: > We had an elderly applicant for a teaching position who tried to use one > of the machines in the lab. When he couldn't find the CD drive, he put > a CD into the 5.25" floppy drive. The college administration morons > actually hired him for one semester! (I mention that he was elderly only > to discount the possibility that he was too young to be familiar with > 5.25") At the other end of the age scale... My pal Fran wondered where a few of his CDs had gone to, until he opened his PC to change a card, and found a stack of them. His four-year old son had sometimes "missed" the CD-ROM drive slot, and inserted the CDs in the gap between the CD-ROM and the floppy. -- Pete Peter Turnbull Network Manager University of York

22 years

Chicago test equipment sale

by jack.rubin＠ameritech.net

This was a great sale - luckily Dan V made sure I didn't have to worry about starting a collection of HP desktops - given my packrat tendencies, smaller is definitely better! Here's what I brought home - - MMD-2 Microcomputer Design set - pretty sure Jon Titus was _not_ involved with this model, but I'm looking forward to talking to him about it at VCF-East - 4 HP 1611A Logic State Analyzers, each with a different interface option - Z80, 6800, 6502 and "generic" - box of HP 1630 Logic Analyzer General Purpose Interfaces (6 10269A, 3 10269B), all with the 6809/6809E personality card and half of them with 6809 chips still in place - F8 microprocessor probe (HP p/n 01611-62104) - box of 14 early 1970's Data I/O Programmer interface cards (1702/2102 vintage) - Xerox 2700 PAR-EBCDIC 64K cartridge (p/n 9R22283 101S04653) - 2 shrink wrapped boxes of 8" Wabash disks - boxed copy of Lotus 123 - big box of '70s dated ICs, transistors, caps, ferrite beads, trim pots, resistors, etc. - many Motorola parts (much of the equipt was ex-Moto) What I missed - what Dan got and a Pachinko game. It was great to meet Dan and chat; I missed him in Dayton, but hooked up with Dan Cohoe there, another good guy. If anybody is interested in the F8 probe or Xerox cartridge, they're yours for the shipping cost (both are small). I'd like to get $10 each for the HP 10269x/6809 interfaces - I'll put them on VCF if noone here is interested. Jack

22 years

Pressed Particle Board Shelving Warning

by pete＠dunnington.u-net.com

On May 27, 9:08, Stan Barr wrote: > The desk on which my main Mac sits is made of this stuff and is sagging > under the weight of the two monitors. That's only a year old. Needless > to say it's scheduled for prompt replacement with a steel desk! Cheaper solution: get 2 or 3 lengths 1" square steel tube (Dexion Speedframe or equivalent), drill 3/16" holes through them every 12" - 18", and screw them to the underside. That'll stiffen it enough. I've got some benches that are made rather like like that, and I can stand on them without them sagging. -- Pete Peter Turnbull Network Manager University of York

22 years

AT&T Gemini-100 electronic blackboard

by siddiqui＠fr.com

Joe, I saw your post (below) about the Gemini electronic blackboard on a message board. I'm interested in the Gemini; do you still have the unit or any of its literature? Thanks, Owais Seeking info on AT&T Gemini-100 Electronic Blackboard Joe cctech(a)classiccmp.org <mailto:cctech%40classiccmp.org> Mon Jul 7 21:02:25 2003 * Previous message: Seeking info on AT&T Gemini-100 Electronic Blackboard <http://www.classiccmp.org/pipermail/cctech/2003-July/016805.html> * Next message: Boot original Mac from an external floppy? <http://www.classiccmp.org/pipermail/cctech/2003-July/016795.html> * Messages sorted by: [ date ] <http://www.classiccmp.org/pipermail/cctech/2003-July/date.html#16810> [ thread ] <http://www.classiccmp.org/pipermail/cctech/2003-July/thread.html#16810> [ subject ] <http://www.classiccmp.org/pipermail/cctech/2003-July/subject.html#16810 > [ author ] <http://www.classiccmp.org/pipermail/cctech/2003-July/author.html#16810> ________________________________ I finished taking one apart that had an embedded HP 1000 computer in it. The thing was HUGE! The tablet was about 6 by 8 FEET. IIRC it was made by Giesler Scientific and it used a high resolution Advin color monitor. I'm not sure but I think it dated from about 1974. Joe At 08:03 PM 7/7/03 +0100, you wrote: >Vintage Computer Festival wrote: >> Might anyone know where one exists? How about similar products prior to >> December 1979? When was the first digitizing tablet invented? > >I have in front of me a manual for a Ferranti digitiser. It was about >A0 in size (4 feet by 5 feet approx) with a crosshair "puck". Some >of the documents refer to the digitiser as a "Bendix", but I don't >know why. > >The dates on the schematics are 1970. > >-- >John Honniball >coredump(a)gifford.co.uk ________________________________ size=2 width="100%" align=center> * Previous message: Seeking info on AT&T Gemini-100 Electronic Blackboard <http://www.classiccmp.org/pipermail/cctech/2003-July/016805.html> * Next message: Boot original Mac from an external floppy? <http://www.classiccmp.org/pipermail/cctech/2003-July/016795.html> * Messages sorted by: [ date ] <http://www.classiccmp.org/pipermail/cctech/2003-July/date.html#16810> [ thread ] <http://www.classiccmp.org/pipermail/cctech/2003-July/thread.html#16810> [ subject ] <http://www.classiccmp.org/pipermail/cctech/2003-July/subject.html#16810 > [ author ] <http://www.classiccmp.org/pipermail/cctech/2003-July/author.html#16810>

22 years

Commodore P500 (European vs. American)

by billdeg＠degnanco.com

Please .cc billdeg(a)degnanco.com (thanks) I have a european Commodore p500 (240/50/PAL). What would be involved if I wanted to try the unit out in American power/monitor environment? Is it a matter of swapping chips? I found only spotty info on the internet. I don't want to take chances.

22 years

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test-drb May 2004