test-drb December 2004

test-drb@ccmp.vtda.org

243 participants
530 discussions

by wacarder＠usit.net

I need a power supply (or two or three) for a DECServer 90+ and DECServer 90TL. I recently acquired 3 of these and want to try to connect my 11/40 to my network, but I'm missing the power supplies. Does anyone have one or more power supplies that they would be willing to spare? Please contact me off list. Thanks, Ashley

20 years, 6 months

COMPLETE Votrax PSS available on eBay

by lord_nightmare＠users.sourceforge.net

A COMPLETE (including the manual, brochures, quick reference sheet, power supply, and parallel cable) Votrax Personal Sound System is available on eBay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=162&item=5151487740&… (I *WISH* I had all the peripherals that one comes with, with mine... It even includes the custom parallel Y cable, which I still need to find the wire mapping for and build... Speaking of which, I should get off my lazy rear and finish building the power supply for mine first so I can see if it even WORKS...) Jonathan Gevaryahu lord_nightmare_(a)t_users.sf.net jgevaryahu_(a)t_hotmail.com

20 years, 6 months

Compaq OpenVMS CDROM Kits

by vcf＠siconic.com

I've got two OpenVMS for Alpha V7.2 CD-ROM Update Kits, new in the box and shrink-wrapped (i.e. never been opened). The product ID on the label is QA-MT1AA-W8. I've also got a V7.1 (product ID is QA-MT1AA-H8) also for Alpha (shrink-wrapped). Best (3) offers by 1/1 gets them. E-mail me directly please. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 6 months

q about PDP11/34 schematics (clock generation)

by bert＠brothom.nl

Hi all, Can anyone explain to me how the clock generation of the PDP11/34 works? I see in the schematics on page 1-5 that clock signals are "generated" (?) by a delay line. That is: the component is referenced as E104 and the parts list mentions it as "delay line 150nS" As I don't have any other info on this part, I'd like to find out how this component works. Appearantly there are multiple signals coming from this device. Please forgive me my ignorance, I think I might be to young to know (30). TIA Bert

20 years, 6 months

Available: SCSI disks and SCSI DDS drives

by pat＠computer-refuge.org

We were emptying a cabinet of old disks at work, and I saved a few to erase and offer to the list. I'm asking $5 plus shipping costs for a pair of drives (except for 5.25" FH drives, as noted in list). Price can go down in quantity. :) All drives are 3.5", 50-pin SCSI unless otherwise noted. What's available: IBM drives: 9 x 2GB 1.6" tall/Half height (86F0118 / 86F0101) "Model 664" 1 x 1GB 1.6"/HH (55F9902) "Model 663" 2 x 1GB 1"/ 1/3H (45G9467 / 86G9049) "Model 662" Fujitsu drives: 1 x 1GB 1"/One third height (M1606SAU) 2 x 2GB 1.6"/HH (M2932SAU) 4 x 600MB 1.6"/HH (M2694ESA) 2 x 4GB 1.6"/HH (M2934SAU) 4 x 2GB 5.25" wide full-height (M2654SA) ($5 ea) 2 x 4GB 1"/HH (M2954SYO) Archive DDS drives: 2 x 5.25" HH internal DDS 2/4GB tape drive I want to get rid of the disks as soon as possible, so I'll only be holding onto them until around Jan 3rd. Pat -- Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ The Computer Refuge --- http://computer-refuge.org

20 years, 6 months

Apollo Guidance Computer prototype replica

by vcf＠siconic.com

This is going to blow your mind. This guy built a replica of the Apollo Guidance Computer prototype circa 1964 using 1960s era components. http://starfish.osfn.org/AGCreplica/ Do I sense here a Best of Show award at the next VCF? :) -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 6 months

NEC Computers

by hrosen33＠highstream.net

I searched for "PC-8001A" and came across a note by you at: http://www.classiccmp.org/pipermail/cctech/2002-October/004206.html I have the following items that I would like to sell - both PC-8001A and PC-8801A QTY ITEM COMMENTS 1 PC-8012A I/O UNIT 1 PC-8031A MINI DISK UNIT 1 PC-8001A MICRO COMPUTER 3 JB-1201A 1 has been lightly used and 2 are in factory sealed boxes - GREEN MONITOR 1 JB-1205A AMBER MONITOR 1 JB-1260M (A) 2 PC-8800 bundled s/w 2 JC-1460DA COLOR MONITOR 1 PC-8831A MINI DISK 5-1/4 inch 2 PC-8881A DISK UNIT 8 inch 2 PC-8801A MICRO COMPUTER - 1 has DOS 1.25 Board 1 PC-8023A-01 PRINTER 2 PC-8894A PRINTER CABLE 4 PC-8295A-01 RS232C CABLE I live in Philadelphia, PA and would appreciate hearing from you if I could be of service to anyone interested in these items. Howard Rosen

20 years, 6 months

[Fwd: Intel Pentium Overdrive EBOXP0DP5V83 Chips] (UK)

by julesrichardsonuk＠yahoo.co.uk

Chap has 11 of these critters still sealed in boxes - they take a 486 up to an 83MHz Pentium apparently. I suspect they're no use to anyone these days :) I can get them to Bletchley; can always park them in a corner for a while if needs be! They're off to the tip otherwise... cheers Jules

20 years, 6 months

(no subject)

by dundas＠caltech.edu

Erik, I assume it's taken by now, but just for interest, where in CA was the system? Or is that Canada as opposed to California? I'm in Pasadena/Los Angeles, for future reference. Merry Christmas, John

20 years, 6 months

HP DMI info sought

by jwest＠classiccmp.org

Anyone have a pdf of either of the following? Dynamic Mapping System Installation 13305-90001 or 12976-90005 I can't find that on bitsavers. I have the CE handbook cheatsheats, but I'm looking for something a little more expansive. Thanks in advance! Jay West

20 years, 6 months

Heathkit H-9 terminal

by lenius＠tscnet.com

Anyone have a Heathkit H-9 terminal that may be good for parts? Also, How about a manual for the H-11-5 serial interface? Regards, Eric Lenius lenius(a)tscnet.com

20 years, 6 months

XXDP inventory (warning: long list)

by GOOI＠oce.nl

> I will scan the following three first as they describe XXDP *itself* : > > - AC-F053B-MC CXQUAB0 DECX11 USER'S MANUAL > - AC-F055C-MC CXQUBC0 DEC/X11 CROSS-REFERENCE MANUAL > > both of these are already on line at > www.bitsavers.org/pdf/dec/pdp11/XXDP Thanks Al, 3 less to scan :~) A question about the naming scheme of the files. As example, let's take this one: AC-E246B-MC CZRLEB0 RL01/RLV11 PERF EXERCISER According to bitsavers that would become something like this: AC-E246B-MC-RL01-RLV11PERF.pdf where the last part gives a brief indication what the xxdp is used for. I wonder if the "AC-E<number>-MC" is useful, but I have no experience in this field, so that part could be very useful but I don't know that. Also, I have a few 'patch' sheets, and their name start with "AF". That would mean that they would not remain together with the original xxdp in a alphabetic list. Furthermore, is the xxdp name (CZRLEB0) not more meaningfull? In that case the file name would become: CZRLEB0-RL01-RLV11-PERF.pdf I'd appreciate any good advice before I start next week. If you can give me (private of course) a URL, I will upload them as I scanned each one of them as .pdf - IF you can use them on bitsavers. - Henk, PA8PDP.

20 years, 6 months

SGI stuff

by pwearly4u＠yahoo.com

Mark Grieshaber, I know it's been a year since you posted a message about getting rid of some of your SGI stuff. I thought I'd take an extreme chance and see if you had anything left. Especially for the P.I. series or Indigo2 series... Thanks for your time, Paul Early __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years, 6 months

XXDP inventory (warning: long list)

by aek＠spies.com

I will scan the following three first as they describe XXDP *itself* : - AC-F053B-MC CXQUAB0 DECX11 USER'S MANUAL - AC-F055C-MC CXQUBC0 DEC/X11 CROSS-REFERENCE MANUAL - both of these are already on line at www.bitsavers.org/pdf/dec/pdp11/XXDP

20 years, 6 months

XXDP inventory (warning: long list)

by GOOI＠oce.nl

Hello all, First of all, best wishes to you and your family. Here is the list of the XXDP listings that I have (25 cm pile!). I will scan the following three first as they describe XXDP *itself* : - AC-9093L-MC CZQXAL0 XXDP USR MAN - AC-F053B-MC CXQUAB0 DECX11 USER'S MANUAL - AC-F055C-MC CXQUBC0 DEC/X11 CROSS-REFERENCE MANUAL with AF-F055C-M1 patch for AC-F055C-MC - Henk, PA8PDP. The list: AC-9093L-MC CZQXAL0 XXDP USR MAN (THIS MAINDEC REPLACES MAINDEC-11 DZQDD AND DZQDE AND DZQXA) AC-8528C-MC CZDLDC0 DL11-W DIAG AC-8850F-MC CZKMAF0 MOS/CORE 1-124K EXER MAINDEC-11-DFKAC-A-D 11/34 EIS INSTRUCTION TESTS AC-8041C-MC CFKAAC0 11/34 BSC INST TST AC-8045D-MC CFKABD0 11/34 TRAPS TST AC-8054B-MC CFKTHB0 PDP 11/34 MEM MGMT AC-7883F-MC CCMFAF0 MS11, MF11, MA11-P MEM MAINDEC-11--DZKAQ-G-D PDP-11 POWER FAIL DIAGNOSTIC AC-8954E-MC CZM9AE0 BOOTSTRAP/TERMINATOR (M9301, M9400) AC-9045F-MC CZQMCF0 0-124K MEM EXER 16K MAINDEC-11-DCKBR-E-D 11/40 - 11/45 CPU PARITY TEST AC-8532D-MC CZDLOD0 DL11 OVRLY FOR ITEP AC-8516G-MC CZDLAG0 DL11-E,C/D OFLNE TST MAINDEC-11-DZDLB-B-D DL11-E ON LINE TESTS (THIS MAINDEC OBSOLETES MAINDEC-11-DZDLBA) MAINDEC-11-DZDLC-B-D DL11/C,/D, or /E Off Line Test AC-8898E-MC CZLACE0 LA36 TERM (DL11 & KL11) AC-E099A-MC CZLAFA0 LA36 TERM TST MAINDEC-11-DZLAD-C-D LA36 TERMINAL (DH11 & DJ11 INTERFACE) MD-11-DZLAD-C1/03 temporary patch for MAINDEC-11-DZLAD-C-D MAINDEC-11-DZITA-D-D INTERPROCESSOR TEST PROGRAM (ITEP) AC-E250B-MC CZRLFB0 RL01 DRIVE COMPATIBILITY TEST AC-E044B-MC CZRLCB0 RL01 DRIVE TEST PART 1 AC-E048B-MC CZRLDB0 RL01 DRIVE TEST PART 2 AC-E246B-MC CZRLEB0 RL01/RLV11 PERF EXERCISER AC-E040B-MC CZRLBB0 RL11/RLV11 CONTROLLER TEST PART 2 AC-E451A-MC CXTSAA0 DEC/X11 TS11/TS04 MOD AC-E661D-MC CXXYAD0 XY11 PRLOT MOD AC-E664G-MC CXCPAG0 PROCESSOR TST AC-E667J-MC CXCPBJ0 EIS EXER MOD AC-E670F-MC CXLPAF0 LP11 MODULE AC-E673G-MC CXRFAG0 RF11 MODULE AC-E676G-MC CXRKAG0 DEC/X11 RK11 MODULE AC-679M-MC CXRPAM0 RP11 MODULE AC-E682D-MC CXTAAD0 TA11 MODULE AC-E685G-MC CXTCAG0 DEC/X11 TC11 MODULE AC-E688G-MC CXKWAG0 DEC/X11 KW11-L LINE CLOCK MODULE AC-E691J-MC CXKWBJ0 DEC/X11 KW11-P MODULE AC-E694F-MC CXCRAF0 CR11 MODULE MD-XX-CXCRA CXCRAF1 CR11 MODULE CONDITIONAL PATCH AC-E697D-MC CXKEAD0 KE11 MODULE AC-E700C-MC CXPCCC0 PC11 MODULE AC-E703I-MC CXTMAI0 TM11 MODULE MD-ZZ-CXTMA CXTMA11 TM11 MODULE UNCONDITIONAL PATCH 1 MD-ZZ-CXTMA CXTMA11 TM11 MODULE PATCH BEQ TO BNE PART 2 AC-E706G-MC CXDCAG0 DC11 MODULE AC-E709I-MC CXDLAI0 DL11 MODULE AC-E712E-MC CXDPAE0 DEC/X11 DP11 MODULE AC-E715I-MC CXDQAI0 DQ11 DEC/X11 MODULE AC-E718I-MC CXDUAI0 DU11 DEC/X11 MODULE AC-E721H-MC CXDJAH0 DEC/X11 DJ11 MODULE AC-E724E-MC CXGTAE0 GT-40 DEC/X11 MODULE AC-E727F-MC CXLPBF0 LPS-KW MODULE AC-E730F-MC CXLPDF0 LPS-AD,NP MODULE AC-E733I-MC CXDRCI0 DR11-C MODULE AC-E736E-MC CXRXAE0 DEC/X11 RX01 FLOPPY DISK MODULE AC-E739B-MC CXDRFB0 DRV11B MODULE AC-E742G-MC CXFPAG0 DEC/X11 FP11 (11/40 & 45) MODULE AC-E745I-MC CXRPBI0 RH11-RH70 SGL PT DSK AC-E748I-MC CXRSAI0 DEC/X11 RH11/RS03, RS03/LA, RS04 MODULE AC-E785D-MC CXRKBD0 RK611/RK06,RK07 MOD AC-E788G-MC CXCDAG0 CD11 MOD AC-E791B-MC CXKWCB0 KW11-W MODULE AC-E794E-MC CXAFAE0 AFC11 MODULE AC-E800E-MC CXADAE0 AD01-D MODULE AC-E803G-MC CXDNAG0 DN11 MODULE AF-E803G-M1 MD-ZZ-CXDNA PATCH AC-E809B-MC CXBTBB0 BUS TESTER MODULE A AC-E812B-MC CXBTAB0 BUS TESTER MODULE B AC-E815B-MC CXLPFB0 LP20 MODULE AC-E821E-MC CXKLAE0 KL11 MODULE AC-E827F-MC CXDXAF0 DX11 MODULE AF-E827F-M1 MD-ZZ-CXDXA PATCH AC-E833F-MC CXCBCF0 CB11-HA MODULE AC-E836E-MC CXCBBE0 CB11 DISTRIBUTE MOD AC-E839E-MC CXCBAE0 CB11 SCAN MODULE AC-E842E-MC CXLPCE0 LPS11/LPS-VC MODULE AC-E845I-MC CXDMBI0 DM11-BB 16-LNE MO AC-E848D-MC CXAAAD0 AA11/VT01-A MODULE AC-E851H-MC CXDRBH0 DR11-B MODULE AC-E854D-MC CXDRAD0 DR11-A MODULE AC-E857F-MC CXPABF0 PA611 PUNCH MODULE AF-E857F-M1 MD-ZZ-CXPAB PATCH AC-E860F-MC CXPAAF0 PA611 READER MODULE AC-E863D-MC CXUDAD0 UDC11 MODULE AC-E866L-MC CXDHAL0 DH11 16-LNE PROG AC-E869C-MC CXICAC0 ICS-11 MODULE AF-E868C-M1 MD-ZZ-CXICA PATCH AC-E872C-MC CXVSAC0 VS60 MOD AC-E875B-MC CXARAB0 AR-11 MODULE AC-E878K-MC CXTMBK0 TM02,03/TU16,TE16 MO AC-E881B-MC CXBBAB0 KIT-11D MODULE AC-E884B-MC CXBEAB0 M7855 BUS TESTER MODULE AC-E887C-MC CXDREC0 DR11M,DR11L MODULE AC-E890C-MC CXICBC0 ICR-11 MODULE AC-E893B-MC CXDPBB0 DUP-11 MODULE AC-E896C-MC CXTRAC0 TR79F MODULE AF-E896C-M1 MD-ZZ-CXTRA UNCONDITIONAL PATCH AF-E896C-M2 MD-ZZ-CXTRA BEQ TO BNE PATCH 2 AF-E896C-M3 MD-ZZ-CXTRA PATCH 3 AC-E899D-MC CXNCAD0 NC-11A MODULE AC-E902C-MC CXDRDC0 DR11K MODULE AC-E905B-MC CXVTAB0 VT20 MODULE AC-E908C-MC CXLPEC0 LPD-11 MODULE AF-E908C-M1 MD-ZZ-CXLPE PATCH AC-E911C-MC CXDZBC0 DZV11 MODULE AC-E914D-MC CXIBAD0 IBV-11A MODULE AC-E920B-MC CXKWEB0 KWV11K MODULE AC-E923B-MC CXADCB0 ADV11 MODULE CA-E926B-MC CXADBB0 AD-11K MODULE AC-E929B-MC CXKWDB0 KW11-K MODULE AC-E932D-MC CXRCAD0 RC11 MOD AC-E935B-MC CXLKAB0 LK11 MODULE AC-E938C-MC CXFPBC0 FP11-A,B,C MODULE AC-E941C-MC CXDZAC0 DZ11 MODULE AC-E944B-MC CXVSBB0 VSV01 MODULE AC-E947B-MC CXDVAB0 DV11 MODULE AC-E950B-MC CXKMCB0 KMC-11 MODULE AF-E950B-M1 MD-ZZ-CXKMC PATCH AC-E953B-MC CXDMCB0 DMC-11 MODULE AF-E953B-M1 MD-ZZ-CXDMC PATCH AC-E956B-MC CXVTBB0 DH11/VT20 MODULE AC-E959B-MC CXAABB0 AA11-K MODULE AC-E962B-MC CXPCSB0 PCS-11 MODULE AC-E965C-MC CXRLAC0 RL11/RL01 MODULE AC-E968C-MC CXRMBC0 RH11/RM03 DUAL PORT MOD AC-E971D-MC CXRMAD0 RH11,70/RM03,02 S P M AC-E974B-MC CXLPHB0 LPA11-XX MODULE AC-E992B-MC CXKUAB0 KUV11-A MODULE AC-E995C-MC CXDTAC0 DTE20 MODULE AC-E998B-MC CXDLBB0 DL11-E MODULE AF-E998B-M1 MD-ZZ-CXDLB PATCH AC-F001B-MC CXKWFB0 GROSS TMNG MOD AC-F004A-MC CXDRWA0 DR11-W MODULE AC-F053B-MC CXQUAB0 DECX11 USER'S MANUAL AC-F055C-MC CXQUBC0 DEC/X11 CROSS-REFERENCE MANUAL AF-F055C-M1 MD-ZZ-CXQUB UPDATE AC-F057N-MC CXBMCN0 BOOTSTRAP ROM MOD AC-F060C-MC CXBMDC0 LSI-11 BDV11 MOD AC-F063B-MC CXBMEB0 BM873-YF MODULE AC-F066B-MC CXBMFB0 BM873-YH MODULE AC-F069B-MC CXBMGB0 BM873-YJ MODULE AC-F072B-MC CXBMHB0 M9312 MODULE AC-F084B-MC CXPLAB0 PCL11 MODULE AC-F087C-MC CXRPDC0 RP04,5,6 MOD AC-F098C-MC CXRXBC0 RX02 MODULE AC-F234A-MC CXNCBA0 NCV-11A MODULE AC-F416A-NC CXMNAA0 MNCAD (A/D) MODULE AC-F419A-MC CXMNBA0 MNCDI MODULE AC-F422A-MC CXMNCA0 MNCKW MODULE AC-F425A-MC CXMNDA0 MNCDA (D/A) MODULE AC-F428A-MC CXMNEA0 MNCDO MODULE

20 years, 6 months

Back to computing topic ... Re: OT: timing belts

by dave04a＠dunfield.com

>- What is the largest computer you've fit into a car? Complete Nova 1200 system (full rack) in an early 80's Honda Civic - basically, the top of the rack (with a 9-track drive) wedged in far enough so that it didn't fall out (good thing it has a strong roof) - the rest stuck out the back and weighed the car down to bottom out on its springs - The front end felt *VERY* light, and it would feel as if the front wheels came up if you accelerated while going over a bump. Fortunately I didn't have to move it far... (Wish I had taken a picture!) Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

20 years, 6 months

IT'S BAAAACK!! The "complete" in-complete HP 1000!

by rigdonj＠cfl.rr.com

Only $749! Anybody want to get screwed? <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5149344085 &rd=1> And of course the "mystery"* E-series HP 1000 is still there too. <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5150357271 &rd=1> *The mystery is how much of it is missing! Joe

20 years, 6 months

Interesting "Rare" APPLE PCI Board on Ebay

by cb＠mythtech.net

>Don't know anything about this, but thought you guys might be interested. >It has a Buy It Now of $15.... I'm not sure how "rare" it really is. One of the major mac "parts" dealers (I forget who, small dog maybe), had a bunch of these for sale not too long ago at $5.00 each. They didn't seem to indicate any limit on the supply. Also, from what I understand, the board isn't too useful as the Mac OS doesn't recognize it, and so won't work with the ports on it. It is probably about a rare as the Apple Set Top Box, it certainly seems to be as functional. :-) -chris <http://www.mythtech.net>

20 years, 6 months

Apollo Guidance Computer prototype replica (slashdotted..)

by aek＠spies.com

http://science.slashdot.org/science/04/12/24/1326230.shtml?tid=137&tid=160 The comments are particularly clueless (it is /. after all)

20 years, 6 months

Merry X-mas to everyone; Token Ring Christmas gift

by Arno_1983＠gmx.de

The subject says it all... I'd like to wish everybody in "the hobby" a merry Christmas and, as I won't be online too often until 09.01.05, quite possibly a happy new year as well. Thanks to all who - both regularly or sporadically - populate this list and, friendly and helpful, contribute to the massive amount of knowledge as well as to the unique atmosphere here. Double thanks to the people who maintain the list server, moderate postings and generally "do the work", thus allowing this community to flourish. Last but not least, thanks also to everyone who helped me with the questions and tasks I was personally involved with - the network gear transport, the HP disk drive documentation and everything else I forget right now. Also, somebody has a Christmas Gift for a true Token Ring enthusiast (might even suffice for more of them); I hope he doesn't mind me sending it here - he didn't react to private mail suggesting he might crosspost it here: > From: Porkchop <porkchop(a)nic.com> > Subject: [rescue] For Rescue: Token Ring! > To: rescue(a)sunhelp.org > > My employer moved from Token Ring to Ethernet a few years ago. > Finally, the rooms used to store the old 3,000+ port network will be > needed for something else. > > Its all IBM. We have bridges, 8270s (managed token ring switches), > CAUs (controlled hubs), LAMs (expansion options for the CAUs...25 > extra ports per LAM), a few MAUs (uncontrolled hubs)... the CAUs have > fiber options, the 8270s I think have [fiber] ATM cards and some have > fiber token ring cards. All have copper token ring. This is a mix of > type1, type2, rj-11, and biconic fiber. Mostly RJ-11. > > We also have three very large ATM switches, but they will probably be > going a separate way. > > Here's the catch. You gotta take it all. I'm guesstimating 30 cubic > yards...its been a while since I've been over there but I'll of > course give a more accurate approximation to anyone interested. > Serious offers only, please. I don't want to bring up an option only > to have it fall through. 1-5 month timeframe. > > How much you offer isn't important. Minimum bid is $1...we actually > need the magical $1. Everyone in IT would like to see it go to a > better place than a landfill... > > Mid Hudson Valley, New York...2 hours north of NYC. > -porkchop There already were some "interested reactions" on the rescue list, but of course nobody knows if one of them is gonna work out. If this load is aquired, I might well be interested in some of this stuff; I've got some Token Ring NICs at home and a few more inbound, but neither cabling nor a MAU/CAU yet. Yours sincerely, so long (and thanks for all the fish :-) Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen --- www.iser.uni-erlangen.de

20 years, 6 months

UNIVAC 409-2 computer

by tomj＠wps.com

Some Mauchly nightmare, a friend bought this chunk of history for a few bills on ePay recently. Pretty good score. http://www.cathodecorner.com/rand409-2/

20 years, 6 months

HP9845 printer timing belt

by ard＠p850ug1.demon.co.uk

This talk of timing belts has prompted me to post about the one in the HP9845 internal thermal printer (one of those machines is in many bits on my bench at the moment...), Fortunately I am not looking for a replacement belt -- I say 'fortunately' because I've enver seen anything like it. There are 3 sporckets. One on the stepper motor spindle at the back. One on the platten spindle. One on the feed roller spindle. The first 2 are conventioally driven by teeth on the inside of the belt. The last goes against the outside of the belt and engages with teeth there (of the same pitch as the intenral ones). Of course that means it turns the opposite way. I've never seen a betl with external teeth in anything else (although I have seen a chain drive with sprockets engaging on both sides). I think I mentioned that the printhead in this printer can be taken apart. It consists of a coonventioal PCB to link to the cable harness, 7 ceramic hybrid circuits that contain the printhead drivers (and serial-parallel shift registers), the printhead hybrid iteslf and a load of zebra-strip like connectors to link everything together... -tony

20 years, 6 months

OT: merry stuff

by msokolov＠ivan.Harhan.ORG

... and Happy Yuletide and Blessed Be for those who know what that means. :-) MS

20 years, 6 months

PDP 11/34 available in CA

by ekklein＠pacbell.net

I got this via email late yesterday: "Would you know of anyone that would be interested in a DEC PDP11-34? We just got one in stock and I can provide you with pix and a list of the boards inside if you need." So, if you might be interested in the 11/34 please let me know and I'll put you in touch with the seller. Email me webmasterNOSPAM(a)vintage-computer.com Happy Holidays! Erik Klein www.vintage-computer.com <http://www.vintage-computer.com/> www.vintage-computer.com/vcforum The Vintage Computer Forum

20 years, 6 months

Old Unibus PDP-11 XXDP diagnostics

by wacarder＠usit.net

Does anyone have any info/documentation on the XXDP diagnostics for older PDP-11 systems and peripherals? I'm looking in particular for the 11/40 (11/35), RK05, DZ11, RL02, MM11 core memory, RX01, RL01 diagnostics. I have found some info on Henk's site, but would like to know if anyone has a comprehensive list and hints on how to run these, what the output means, how to answer the prompts, etc. I have created RL02 packs with XXDP 2.5 and XXDP 2.2 and I can boot and run stuff from these packs. It appears that the 11/40 diagnostics are on XXDP 2.2, but not on XXDP 2.5. I have an old 1976 DEC field rep troubleshooting guide that refers to various MAINDECs, which seem to have been the diagnostics prior to XXDP. Is there a list somewhere showing what the XXDP equivalents of the old MAINDECs are? Any help would be appreciated. I want to exercise my 11/40 and attached peripherals and see if any subtle gremlins are lurking anywhere within. Everything appears to be working perfectly with the exception of one of my three RK05 drives that I knew was problematic. Ashley

20 years, 6 months

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test-drb December 2004