test-drb January 2007

test-drb@ccmp.vtda.org

238 participants
538 discussions

8/L has been sold. Have ADM-3A for sale.

by charlesmorris＠direcway.com

The 8/L, ASR33, DF32 disk emulator project has been sold. Thanks for all your interest (and offers). Anyone who wants the DF32 emulator schematic and artwork, I can email you a copy. I hope someone can take my "first draft" and make a useful unit for those who are interested. I have a working ADM-3A that I may want to sell also. It has a homebrewed lower-case 2716 ROM (thanks Steve Loboyko for the font files). I installed the "optional" parts for current loop on the main PCB, and used it with the 8/L. The only thing that's missing is the little aluminum panel covering the dip switches. Any interest? Same deal as before, please email offers, "sealed bids". thanks Charles

13 years, 4 months

Perkin Elmer 7300 Pro System Museum Quality!

by mail.list＠analog-and-digital-solutions.com

Here's one some of you might like. Perkin Elmer 7300 Pro System Museum Quality! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2738081449 Current bid US $9.99

13 years, 6 months

Stag PPZ EPROM programmer

by coredump＠gifford.co.uk

I have a fine old Stag PPZ modular EPROM programmer: http://www.gifford.co.uk/~coredump/inst.htm#PPZ It takes plug-in EPROM (model Zm2000) and PAL (Zm2200) modules, called Z-modules by Stag. I've recently acquired a new module, Zm3000, which looks like a more recent EPROM module. The chips in the Zm3000 are date coded in 1993, whereas the Zm2000 is nearer 1988. The PPZ main unit contains a 6809 CPU and a small CRT display. Does anyone know anything about this system? What about other Z-module types? In particular, should the Zm3000 work with the PPZ, because I currently get an error message "Incorrect Mainframe"? Thanks in advance for any clues! (Virtually all I get from Google is a link back to my own web page!) -- John Honniball coredump(a)gifford.co.uk

13 years, 8 months

IBM PC Convertible Speech Module.

by netsurfer_x1＠fastmailbox.net

Anyone here have the speech module for an IBM PC Convertible they want to get rid of? I just got one of these laptops & was hoping to score one. David M. Vohs Digital Archaeologist & Computer Historian Computer Collection: "Triumph": Commodore 64, 1802, 1541, Indus GT, FDD-1, GeoRAM 512, MPS-801. "Leela": Original Apple Macintosh, Imagewriter II. "Delorean": TI-99/4A, TI Speech Synthesizer. "Spectrum": Tandy Color Computer III. "Monolith": Apple Macintosh Portable. "Boombox": Sharp PC-7000. "Butterfly": Tandy 200, PDD-2. "Shapeshifter": Epson QX-10, Comrex HDD, Titan graphics/MS-DOS board. "Scout": Otrona Attache. (prospective) "Pioneer": Apple LISA II. "TMA-1": Atari Portfolio, Memory Expander + "Centaur": Commodore Amiga 2000. "Neon": Zenith Minisport.

13 years, 9 months

I'm so stupid...

by msokolov＠ivan.Harhan.ORG

Back in 1998 (actually more like from summer 1997 until summer 1998, i.e., the 1997-98 school year), before I started Quasijarus Project, I was searching the World high and low for a copy of the 4.3BSD tape set. That was before PUPS got its momentum with getting the $100 "Ancient UNIX" license deal from SCO, and more importantly, getting people interested in preserving and working with Original UNIX, and at that time the entire world was basically in a conspiracy of anathema against original Bell/Berkeley UNIX, everyone just wanted it to stay buried in its grave and not come up. Getting a copy of the 4.3BSD tape set seemed next to impossible. www.berkeley.edu was shockingly silent about the fact that Berkeley UNIX aka BSD, UC Berkeley's greatest accomplishment in all of its history, ever existed, much less saying how to order a tape. Finally I found a phone number and a couple of E-mail addresses for some office at UCB that was apparently kept for sending out tapes after CSRG itself was gutted. The office was basically a voice mailbox and a couple of E-mail addresses, with the two people who were actually supposed to get those E-mail and voice messages being away somewhere in San Francisco and taking a few weeks to answer inquiries. Finally they got back to me and told me to send a check for $2400 for 4.4BSD and $1000 for 4.3BSD. Ouch! And of course some murky business about licenses. At that time, however, I attended Case Western Reserve University (CWRU) and had a semi-staff relationship with their computer science department. I realised that the university must have had a UNIX source license from back in The Days, and most probably had the actual 4.3BSD tapes at some point as well, especially given that the old-timers told me that they were indeed running 11/780s before. But again the conspiracy of anathema was working: everyone had completely forgotten about it, and no one on the entire campus even knew that the university had a UNIX source license (and old-timers confirmed that indeed there was one). When spring 1998 came around, PUPS was making its debut with the $100 license deal from SCO. I didn't care so much about license stuff, but it meant a resurgence of interest in Original UNIX and a community of people involved with it, something that was completely lacking only a few months prior. I wanted access to the PUPS archive, and I wanted to use the university's license rather than fork over $100 for a personal one. The only issue was *finding* that license. Then I got a bright idea: since the license agreement was between CWRU and AT&T, there must have been copies of it on both sides. If CWRU had chosen to forget about the license they once paid big money for, how about if I dig up a copy of the license agreement from AT&T side? So I asked SCO's Dion Johnson about it, and lo and behold, a few days later a copy of CWRU's original UNIX license agreement shows up in my box in the computer science department mail room! Warren Toomey got another copy and soon I got an overseas fax from him with passwords for his PUPS Archive! Whoo-hoo! But I still needed 4.3BSD. It wasn't in Warren's archive since they were still PDP-only at that time, and me holding a copy of my school's AT&T UNIX license agreement didn't help convince anyone I knew who might have had 4.3BSD tapes to share them with me. In late 1997 I got myself an office at CWRU, it was the CES department's computer junkyard room. I was quite happy, a room full of classic computers was the best office I could get. It was actually two rooms, 411 and 412. Only 411 was accessible from the hallway, the entrance to 412 was inside 411. Both rooms were filled with classic computer gear, but 411 was a little less full and actually had some room for a desk and was usable as an office. 412, on the other hand, was *completely* filled with classic computer gear (mostly Sun 3) and it was difficult for a person to make it through to the end of the room. At the very end of room 412 (the end opposite the entrance door from 411) there was something that looked like a plastic curtain or plastic window blinds. The architecture of that building was really intriguing, the kind one finds only on good old university campuses, and I couldn't really tell if there was supposed to be a window there or not. I just never gave it much thought, and it was too difficult to climb over all that Sun 3 gear in the way to see exactly what it was. On a shelf in room 411 there were some magtape reels, and I thought that if they ever had 4.3BSD tapes, they ought to be there. But I looked through all the tapes I could see and 4.3BSD wasn't there. Bummer. Then one day in summer 1998 I came to work in the morning, went up the stairs to my beloved Computer Engineering and Science department 4th floor, went to the end of the hallway to my office, and got in. I turned on the lights and per my usual habit, peeked all over the room to make sure all the fun classic computers were still there. And lo and behold, at the very end of room 412, where I previously saw those plastic curtains or window blinds or whatever, I now saw two racks full of magtapes! It turned out that the plastic "curtains" were actually vertically sliding doors (kinda like garage doors) of two huge magtape cabinets! Another staff member must have had a need to get some old magtape and didn't close the cabinet after he was done. With trembling hands, I raced there and started looking through all the tapes. And sure enough, in a few minutes I found all 3 tapes of the 4.3BSD 1600 BPI distribution. I spent pretty much the whole year prior to that moment searching the World high and low for 4.3BSD tapes when they were sitting the whole time in my own office! Now that's a "Duh!" moment. MS

15 years, 3 months

Where to find memory ICs?

by trixter＠oldskool.org

Have a working Intel Above Board Plus 8 with 2MB RAM and would like to populate it to the full 8MB. It will take 120ns or faster 1mbit chips -- but where can one find that kind of thing nowadays? Are those still commercially available or am I going to have to scavenge them from somewhere else? Manual lists acceptable part numbers like: Fujitsu MB81C1000P-xx Hitachi HM511000P-xxS Mitsubishi M5M41000AP-xx Motorola M5M511000P-xx NEC UPD421000C-xx NMB AAA1M100-xx OKI M511000RS-xx Samsung KM41C1000P-xx TI TMS4C1024-xx Toshiba TC511000P-xx ...etc but google searches haven't been very fruitful (that is, the pages returned when I search for IC part numbers don't return vendors with plain pricing/availability info). I just want a few tubes of these to populate the board, I'm not looking for a box of 'em :-) Any pointers? -- 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/

16 years, 4 months

Bernoulli/Syquest carts available

by SUPRDAVE＠aol.com

I've more of these than anyone will need and they're all brand new. 3 packs of Bernoulli 5.25 44meg disks KAO 5.25 88meg syquest disks. The label inside says they are formatted for Macs but includes software for wintel machines also. $1 each plus whatever for shipping and they're yours. Just say how many you want. -- I am not willing to give up my privacy for the false promise of 'security'

16 years, 5 months

2.11BSD Patch 445; FPSIM fixed; 211bsd runs on systems without FPP

by W.F.J.Mueller＠gsi.de

A note to all 2.11bsd users: Some time ago I looked into running 2.11bsd on systems without floating point unit. The release notes state that this is untested and unsupported, and indeed it didn't work. Robin Birch some time ago fixed part of the issues, see patch 434, but still the kernel paniced when the very first program was started. I managed to localize and fix the problem in sys/pdp/mch_fpsim.s. Steven Schultz right away issued 2.11BSD patch #445. All patches up to and including 445 are provided by Steven under ftp://sg-1.ims.ideas.gd-ais.com/pub/2.11BSD A patch level 445 system will now boot on simh for example on a set cpu 11/70 nofpp 4m configuration and work just fine, albeit a little slower. It should thus also work on a real 11/70 without FPP. I heard of some 11/70 with non-working FPP's, so this maybe good news for the owners. With best regards, Walter Mueller -- Dr. Walter F.J. M?ller Mail: W.F.J.Mueller at gsi.de GSI, Abteilung KP3 Phone: +49-6159-71-2766 D-64291 Darmstadt FAX: +49-6159-71-3762 URL: http://www-linux.gsi.de/~mueller/

16 years, 10 months

Mike Quinn Electronics -- one last chance

by brian＠quarterbyte.com

Hi Folks, As many of you know, the venerable Mike Quinn Electronics in San Leandro, CA (down by the Oakland Airport) closed last Saturday with virtually no advance notice. If you're in the San Francisco Bay Area, you know Mike Quinn is the one of the very last of the nitty gritty electronics salvage shops left, with an emphasis on gritty. I stopped by today, and mentioned to Maurice, the owner, that a lot of people would have liked to have had one last shot at a visit. So, he has extented an invitation to y'all to visit next week, Tuesday through Friday February 7-10, 2006, during normal business hours, for one last shopping spree. He is trying to find a buyer for the stock in the store. This is almost certainly the last chance to visit. If you can, it's worth doing whatever you have to do to make the pilgrimage. Buy some stuff to thank Maurice for keeping it going all this time. There are zillions of connectors and components, heaps of transformers and power supplies, scads of cables and keyboards and monitors and other PC junk, a jet fighter console or two, a couple of early 80's HP desktop computers (the ones with built-in BASIC, can't recall the model numbers), lots of relays, and much more, all arranged in an archaeologically interesting and un-seismically-safe way. If you need it, they have it, and they might even be able to find it. Mike Quinn Electronics 401 McCormick Street (at the corner of Adams and McCormick) San Leandro, CA 94577 Brian

17 years

Quadram Quadboard

by geoffr＠zipcon.net

Does anyone have docs for this beastie? it's an apple-II on a card that goes into an XT... or does anyone have any interest in it? it's been sitting on my shelf for ~ 12 years now...

17 years, 1 month

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test-drb January 2007