test-drb May 2006

test-drb@ccmp.vtda.org

195 participants
346 discussions

11/23 type gear available in Cleveland area

by jwest＠ezwind.net

Heads up... a couple 11/23 systems in lowbow racks is available in the cleveland area. I'll post it momentarily with pictures... I suspect they want something for the gear, but it looks like one of the units was cannibalized, etc. Jay

18 years, 2 months

Daves Old Computers has moved.

by dave06a＠dunfield.com

Just a note to let everyone know that thanks to Jays generosity, my "Daves Old Computers" site has found a new home. The new location is: www.classiccmp.org/dunfield Hopefully it will not move again for a long time, however for future reference, please remember that the link on www.dunfield.com should always reflect the correct location for the site. Regards, Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

18 years, 2 months

CV Mod 32/ Sun 3004 CPU questions

by compoobah＠valleyimplants.com

Replaced the tantalum cap in the VME terminator paddle boards on the ComputerVision, fired it up, and I'm getting chasing lights on the diag panel. It does it with all cards, and with only the CPU. Looking at the behavior of a Sun 3/110, it looks like maybe the power-on reset circuit is flakey (3/110 chases once and then goes into selftest patterns, 3004 keeps chasing). Couldn't find this discribed on the Sun3 Zoo webpage. Anyone come across it?

18 years, 2 months

Write-only archives (was: Parking heads on Honeywell DPS6)

by tshoppa＠wmata.com

Jay wrote, after a few bandishments back-and-forth on the "Parking heads" thread: > I am not sure I comprehend the entire > situation behind this thread... so I'm > not making an official request or anything... > just asking a question in the > role of just another listmember... Is this > a discussion that should be > handled off-list? I think that more usefully we could all begin complaining about what we don't like about "write-only" archives. I'm not talking purely about "black-hole" perceptions (e.g. you send it in but nothing ever comes out) but also about a lack of concern for web access, formats friendly to OCR'ing and searchability, etc. Similarly those who scan out-of-date documentation (computers, test equipment, whatever) and sell it on E-bay have a very strong interest in making their archives be poorly searchable and megabyte- large. Recently there's been wars about scanning and downloading old semiconductor datasheets among commercial and semi-commercial entities that want to sell access to that data. I'm not saying that there's no commercial value in access to the data, but the folks who scanned those datasheets and sold scanned datasheets to begin with never really "owned" the IP of the datasheet. Tim.

18 years, 2 months

stuff!

by rtellason＠blazenet.net

I went to see this guy today who had a bunch of stuff he wanted to get rid of, and I was looking for scrap. It occurs to me that some of this may perhaps be of some interest... - An assembly that's marked "Mod. A33", it appears to contain a floppy drive (the button is marked 1.44) and there's a square pushbutton and a smaller recessed button (reset?), a liquid crystal display, and a keyswitch. I have two of these. - A tape drive (?) marked "Exabyte Corporation" and "Model HH CTS", I probabl have more than one of these. Pushing open the tape door shows a head in there that bears a slight resemblance to a video head, but smaller. It's got some kind of rails on it and a (single) connector on the back that I dno't recognize, probably for some IBM system. The drive appears to have standard 4-pin power and pin header (50-pin?) going to this. - Printers. I have an Oki 184 that was never removed from the wrapping in the box. Also available to me are going to be some other models, 3?? Oki as well. If you need to print multipart forms these are real workhorses. - Terminals. Since there's been a bunch of talk in here about terminals lately. these I didn't snag today (the car was filled up! :-) but there will be some quantity of Wyse 325 Color and 60 Monochrome terminals, all working I'm told. If there is interest let me know, otherwise these are all going to be scrapped for parts. - "Cooling unit", this is marked "model 052C" and all I can see are a couple of fans and a connector on the other end, appears to be for some kind of IBM racks, I have two of these. - Power supplies, "Lucent Technology C5892B", I have two of these as well. - "Webramp 700", apparently complete with all sorts of stuff in the box. - A docking station and external floppy drive, marked "Toshiba 430", which also has a pile of original software on floppies in the box which appears to include w95. - A box that was "sealed by IBM" until I opened it and apparently containing a "7137 Disk Array Subsystem", complete and certified and such, with some paperwork in a loose-leaf binder, I didn't unpack it any further than that. - Power aupplies and drive assemblies for "IBM 7133 HD Rack Assy" and also the racks, if there's any interest. I believe there is some large number of these, but I haven't had the chance to count things up yet. There's a lot more, and this is going to take multiple more trips for me to end up with all of this stuff before I'll know what I have. If any of it is of interest, please let me know offlist and we'll figure something out. If I don't hear from anybody, I'm just going to get what I can that's usable parts out if it and the rest is history. -- 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

18 years, 2 months

DEC mark sense "punched" cards

by djg＠pdp8.net

Does anybody have the mark sense "punched" card that was used with OS/8 MSBATCH. A Basic and Fortran version was available where you used a pencil to mark up a punched card to write your programs. Scan from manual ftp://ftp.pdp8.net/misc/mark_card.jpg If so what color were they printed? Does anybody have a spare one I could get? I would like one original to show at VCF east. I am hopeing to make some and get my reader working.

18 years, 2 months

2645A terminals

by aek＠bitsavers.org

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=8804457336 he says he has 50 more. note there doesn't appear to be any CRT mold.

18 years, 2 months

Tektronix 4041R03 Signal Processing Programmer's Reference Guide (Feb 1984) online

by legalize＠xmission.com

Now online... the form factor is a quick reference type booklet. <http://www.xmission.com/~legalize/vintage/docs/tektronix/070-4560-00_4041R0…> or <http://tinyurl.com/frkp3> -- "The Direct3D Graphics Pipeline"-- code samples, sample chapter, FAQ: <http://www.xmission.com/~legalize/book/> Pilgrimage: Utah's annual demoparty <http://pilgrimage.scene.org>

18 years, 2 months

Egads! Just six days 'til VCF.

by evan＠snarc.net

Hey folks. I'm going to be at the VCF East location as of early Friday morning. I expect the exhibitors to start trickling in throughout the afternoon. Anyone who intends to show up as a volunteer will certainly be put to good use! All the show details are on Sellam's site at http://www.vintage.org/2006/east/ ... Since this is the first time I'm running a big event, I gaurantee there will be some mistakes made. Hopefully they'll be minimal. Whatever they may be, please just try to have fun.... Having said that, if anyone's coming from out-of-town, then just ping me (or post to the VCF BBS page or post on our local list at http://groups.yahoo.com/group/midatlanticretro/)... The best part of a VCF isn't the computers, it's seeing your fellow collectors. Also, we some cool prizes. The top prizes are a Replica 1 (Apple 1) kit >from Briel Computers, and a Digi-Comp replica kit as well. Both are exciting so we'll let the best-of-show winner choose one and we'll give the other to a random attendee based on picking a ticket number from a hat. - Evan PS - some people are asking me what happened to the CCN - it'll return with a revamped web site and a different format in May.

18 years, 2 months

Parking heads on Honeywell DPS6

by vp＠cs.drexel.edu

Al Kossow <aek at bitsavers.org> wrote: (talking about Tony Duell's circuit diagrams) > After examining the results of his work, I would suggest that your > friend should learn how to CORRECTLY scan hand-drawn line art. > > I will not make the mistake of buying later versions of his disc What's wrong with them? Do you object to them being hand drawn? I have used the 9915A and 9825A schematics when repairing my 9915B and my 9825A (ongoing), and they are clear, correct, and readable [1]. Look, Tony is doing a service to the community, *and* he is not making money out of this, so bitching about his insistence on doing things his way is counter productive both for you and for the rest of us. Personally, I would like to thank Tony for his efforts and contributions to this forum. **vp [1] in fact the 9915 schematics are much more readable than the HP supplied diagrams for the HP-85 (which has many similarities to the 9915). In fact any time there was disagreement between the HP prints and Tony's, the hardware agreed with Tony's drawings.

18 years, 2 months

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test-drb May 2006