test-drb October 1999

test-drb@ccmp.vtda.org

216 participants
748 discussions

by west＠tseinc.com

Tony had asked about what chips were in the standard memories board that I posted about.... It is Standard Memories MM-144. Unibus: there's two rows of 20 ram chips each, and underneath that is two rows of 20 empty sockets each. Underneath that is two rows of 19 ram chips each, and underneath it is two rows of 19 empty sockets each. So, (2x20)+(2x19)=78 chips total. The chips are all OKI M3764-20RS. On the right side of the board on the top are three LED's designated +5B, RUN, and U.ERR. Underneath that is a 14 pin DIP jumper pad, and two 8 switch DIPS. Any ideas on how much memory this is and would anyone happen to have docs on this board? Also, I think my previous post about the modules in the 44 wasn't listed correctly. The slots are filled as follows: 1 A-B M7090 CIM 4 A-F M7094 5 A-F M7095 6 A-F M7096 7 A-F M7097 8 A-F M7098 10 A-F MM-144 (see above) 14 A-B first half of M9202 15 A-B 2nd half of M9202 16 D G727A 23 M9302 I found it odd (to my very uninformed mind) that the G727A was stock in slot 16 D with nothing else around it. If I don't want to hook anything up to this system other than a serial console for now, how should I move the above cards around to prevent continuity problems??? Thanks in advance! Jay West

25 years, 2 months

MicroVAX 2000 questions.

by reif＠magicnet.net

I just rescued two MicroVAX 2000s from the local scrap yard and I'm trying to get them working. I'm getting the following output on a VT330 I have hooked up to the 9 pin serial port: KA410-A V2.3 F_..E...D...C...B...A...9...8...7...6...5...4_..3_..2_..1?.. ? E 0040 0000.0005 ? C 0080 0000.4001 ? 6 00A0 0000.4001 ?? 1 00C0 0011.700E >>> I searched the web and found that E means low battery and C means terminal problem. I couldn't find any reference to the other errors. Does anyone have a link to a web site with a full description of the error messages for this machine? Trying to run a test from the >>> prompt doesn't work either. Any help would be appreciated. Thanks, Bob.

25 years, 2 months

DEC Module Edge Connectors

by mcquiggi＠sfu.ca

Hi Lawrence: At 03:16 AM 99/10/08 GMT, you wrote: >Sure, if you can dig up teh name of the place that had those wierd connectors >for the PDP8/e, i would be interested in seeing if i could still >obtain some. The place is: Gateway Electronics Inc. 9222 Chesapeake Drive, San Diego, California 92123 (619) 279-6802; Fax (619) 279-7294 They were $2 each. You want 36 pin double sided 0.125" spacing card edge connectors. These are, of course, two rows of 18 pins each. Good luck, Kevin --- Kevin McQuiggin VE7ZD mcquiggi(a)sfu.ca

25 years, 2 months

Sources for DEC Software

by eric＠brouhaha.com

> Does anyone know of any sources for old DEC software. Specifically, RT11 for > the PDP-11 series? www.mentec.com

25 years, 2 months

aperiodic announcement

by yakowenk＠cs.unc.edu

It's been a long while since I mentioned it, so here goes: Join the "Classic Computer Rescue Squad"! Be the envy of your neighborhood! See your name up in lights^H^H^H^H^H^Hpixels! See http://www.cs.unc.edu/~yakowenk/classiccmp/ For those of you on that list, maybe this is a good time to check that your entry is up-to-date, and let me know if it is not. Finally, there are also links there to two (count 'em, 2!) archive sites, a searchable index, and the u.washington web page that gives instructions for [un]subscribing. And a whole lot more! (Yah, okay, enough.) Bill.

25 years, 2 months

CDC 924 console in 'The Terminator' (fwd)

by msg＠computerpro.com

---------- Forwarded message ---------- Date: Tue, 12 Oct 1999 15:35:05 -0500 (CDT) From: Grigoni <msg(a)computerpro.com> To: John Dykstra <jdykstra(a)nortelnetworks.com> Subject: RE: CDC 924 console in 'The Terminator' On Tue, 12 Oct 1999, John Dykstra wrote: > On Monday, October 11, 1999 11:05 PM, Grigoni [SMTP:msg@computerpro.com] > wrote: > > A reasonbly good scan of the showcase photograph from a marketing brochure > > for the CDC 924 can be found at: http://www.mtr.webconcept.de/image/ > > computer/cdc/924.jpg > > The correct URL is <http://www.mtr.webconcept.de/image/computer/cdc924.jpg>. > > Michael, when was this machine marketed? The tape drives in the photo look > like 607's, and the chassis is similar to a 6000-series machine. They seem to be pre-corporate-switch 606s, eg. 606A or B. However, the machine (like the 1604) was originally marketed with Ampex tapedrives, generally the vacuum-column versions although the torsion-arm versions were also used (the model numbers escape me at the moment, but in the case of the 1604 I believe the 4-drive chassis was the 1605). This photo is of a newer configuration, probably circa 1963. I remember some indications that the 1604 and 924 were prototyped in 58-59 and the 1604 first delivered to the Navy in 1960. Our 160 reference manual (first printing with the blue/white color scheme) is dated 1959. Michael Grigoni Cybertheque Museum > > It's amusing to note that the teletypewriter in the photo is an IBM model. > CDC made some pretty good peripherals, but they didn't try to out-do IBM in > this arena. > > -- John >

25 years, 2 months

Sources for DEC Software

by healyzh＠aracnet.com

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25 years, 2 months

Sources for DEC Software

by CLASSICCMP＠trailing-edge.com

>Does anyone know of any sources for old DEC software. Specifically, >RT11 for the PDP-11 series? RT-11, the operating system, is still a commercial product. You can buy a copy from Mentec, which is still actively developing RT-11 and RSX-11M/M+ --- see http://www.mentec.com/ If you're looking for freeware to run under RT-11 or RSX-11, check out http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/ specifically, the rt/decus and rsx/decus subdirectories, where you'll find gigabytes of PDP-11 freeware. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

25 years, 2 months

Needed / Available

by edick＠idcomm.com

Well . . . what I meant was the monitors. That's what he's asking $75 for and without the Appollo stations they're of little use, being fixed frequency types. If he asked $25 for them they'd still be difficult to move. I don't see that the monitors have much value as scrap. Unfortunately, in one localized area, there's not such a concentration of "old-computer" fanatics to provide homes for all of them. The fact that they all work has clouded the vision of the shop owner, and the fact that he doesn't have root passwords, etc, needed to take control of them makes them of little interest to potential users, even though it does seem to show that they're working machines. Besides, for a couple of hundred bucks one gets a P-II or something like that with no real effort required to make it work. They'll end up as scrap. Dick -----Original Message----- From: Mike Ford <mikeford(a)socal.rr.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, October 12, 1999 12:45 AM Subject: Re: Needed / Available >>There's a local surplus guy who's got about a half dozen Appollo stations >>with the HP label on them and with HP monitors which he's trying to sell for >>$75. I doubt he'll sell even one. > >Sad fact is that they are often worth more scrapped than running. > >

25 years, 2 months

Dangers of shifting classic computers (was: AT&T PC 6300 Plus Unix box)

by daniel＠internet.look.ca

-----Original Message----- From: pbboy <pbboy(a)mindspring.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, October 07, 1999 12:44 PM Subject: Re: Dangers of shifting classic computers (was: AT&T PC 6300 Plus Unix box) >> >> >> Quite a few times. When I was younger I would move RK05 drives all over the >> place by myself - killed my lower back. To this day I have bad back >> problems. >> >> My worst injuries are: >> >> RK05 / PDP 11/34 (no help) - bad lower back. >> >> Honeywell 316 - cyanide poisoning, was in the hospital, wished I was dead >> for a good 4-5 days as my insides were eaten out. > >How do you get cyanide poisoning from a computer? What parts used cyanide? > Anyone who has worked on a Honeywell 316 power supply knows there is a long board (about 12" X 2 1/2" that plugs into a single socket on the bottom of the power supply. When I was 13/14 years old (don't remember the year) I pulled out the board and the connector broke in half. The connector wires with ends popped out so I had to reconstruct the connector. I asked my dad for some serious adhesive they use at his work place (steel). He brought it home and I slowly but carefully glued back in each wire into the connector and finally glued the connector back together (about 15 minutes close work). I got quite dizzy after a while and stopped working on it. What I didn't know was this particular chemical had sodium cyanide in it. That night I got dizzy, headaches, threw up.. The next morning huge sores were in my mouth, throat, tubes, etc... By about noon the next day I was in the hospital. I had close direct exposure to the chemical without any ventilation. The doctior did say a couple more minutes of use and I would have dies as it would have scarred my lungs. The hospital could do nothing and I suffered in amazing pain for a week. Worst pain was at night,... if I swallowed in my sleep I would wake up as the scarred tissue would open in my throat causing unbelievable pain. I have followed warnings on the bottles ever since. The doctor did tell me that they had one case like that years ago when shoemakers use to use that kind of chemical to fix shoes. Not fun. BTW The supply did work and I still have it. >pbboy > >

25 years, 2 months

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test-drb October 1999