test-drb March 2020

test-drb@ccmp.vtda.org

137 participants
81 discussions

Looking for Extended Industry Standard Architecture Revision 3.10 Specification

by cctalk＠ibm51xx.net

Hello, Does anyone have the "Extended Industry Standard Architecture Revision 3.10" specification either in printed/book form that they are willing to separate >from or in some sort of electronic format ala PDF? I am mostly interested in the sections on the syntax for EISA CFG files. TIA! -Ali

5 years, 2 months

IMSAI PCS 80 30 ROM (original)

by billdegnan＠gmail.com

Hi - I am looking for an IMSAI PCS 80-30 ROM image made for with the Tarbell 1011 controller and Persci 277..anyone have this? I received a system and drive but I think the ROM was replaced and since then I was told the system would no longer boot. In the meantime I am going to find a drive and controller that is compatible. Or, ug, have to try to edit the ROM I have (version 1.1) to operate with this hardware. I would not having a copy of ROM 1.0 at least to start from scratch with. Thanks Bill Degnan

5 years, 2 months

ISO National Instruments MPW DSP tools

by aek＠bitsavers.org

One shot in the dark if anyone has the DSP development or interface toolkit for NI's TMS320C30 Nubus cards. I have a bunch of boards but never found any software to use with them. This is probably LabView 2 or 3 timeframe. I see NI, who is normally pretty good with keeping manuals around doesn't even have them online any more for boards like the DSP2300

5 years, 2 months

DEC paper, drives, PDUs, chassis, etc (Toronto, Ontario)

by toby＠telegraphics.com.au

Hi, I have access to some DEC items for a month or two before a house is sold. Photographs are linked here: https://imgur.com/a/HqxI4JA I can locate and forward any items, if still available, for actual shipping costs and any nominal packaging material costs. Summary: Hitachi ESDI drives RX50 drives (many) TK50 tapes (many) DEC Professional magazine 1987-1994 DECUS software abstracts DECUS software catalogues Controlling Software Projects (DeMARCO) Programming in C with Let's C (Vine) Surefire Programming in C (Stewart) PDP-11 Systems and Options Catalogs 1983-1989 Various databooks, DECdirect, etc DECUScope magazines Copies of RT-11 SIG newsletter(s) issues of digital Canadian Digest, 1980s DECUS Canada mailings digital news & review magazines ("The Independent Newspaper & Test Lab of Open Computing for DEC Sites") various PDU units (see pic) RD52/RD53 drives various empty chassis/backplanes (see pics) BA23 shells (2) various tapes, drives (see pics) As I said, last call, gone in 1-2 months. --Toby

5 years, 2 months

Any fun SunWindows/SunView stuff?

by cmhanson＠eschatologist.net

I have my Sun-4/110C set up and running SunOS 4.1.4. Were there any fun SunView applications or hacks back in the day? Other than the demos, the only stuff I currently have is emacstool (built as part of emacs 18.59) and the PLATO client (which I haven?t actually built yet). I know I can read through the comp.sources.unix archives but I figure maybe some folks might remember things to look for. -- Chris

5 years, 2 months

does anyone have a tektronix 4170?

by aek＠bitsavers.org

Went to Sacramento today to pick this up https://www.ebay.com/itm/TEKTRONIX-Model-4170-Local-Graphics-Processor/3729… and it's missing the cpu and memory boards If I can get pictures of them, I'm going to ask the seller to look for them in the stuff that they still have.

5 years, 2 months

Is this IBM keyboard compatible with the IBM 3279?

by mattislind＠gmail.com

The connector is the correct one. It has four jumpers that could be used for setting one of the keyboard types using the KB ident lines. https://i.imgur.com/PhfvKaV.jpg https://i.imgur.com/VPT38cK.jpg https://i.imgur.com/nN1gtFu.jpg Which terminal was it used for originally? /Mattis

5 years, 2 months

RD53 failure modes

by ce.murillosanchez＠gmail.com

Hello folks; I've recently had some free time and decided to look at some hardware failures in my small collection.? I fixed a couple of analog boards in the compact Mac department, and a failed scsi disk in one of them prompted me to test the small stash of such drives that I have.? Turns out, about half of those marked as "working" in 2015 have failed now in many different ways.? Oh well... sucks, but it was to be expected... I decided to image some of the still working ones, both in the stash and in working machines.?? The one in the vaxstation 2000 (a 1GB scsi with 5.5-2) turned out to have file system corruption (probably from? AC power failures), which has taken a while to fix.? And then, I remembered that said system originally came with an RD53 that has sat elsewhere for 25 years.? It passed a read test in 2005.? So I tried to see if I could read it and maybe image it now, but no go. The disk spins up, initiates a seek (the arm is not stuck in a gooey stop pad; I've read that this is a common failure mechanism for Micropolis 1325's; I opened it and saw the arm move) but then the arm returns violently (clacking) to the rest position; it does this a number of times (two to four, usually) and then it spins down. Applied voltages and currents remain ok as this happens. I've seen plenty of internet content about solving the stuck arm problem, but not this. Advice, please? Carlos.

5 years, 2 months

AT&T DSPs

by mark.kahrs＠gmail.com

I have various TI DSP documentation but also have AT&T DSPs, in particular, the DSP16. The DSP32C was much more popular however.

5 years, 2 months

Printer Transparencies?

by healyzh＠avanthar.com

Here is a strange question. Does anyone happen to know how long unused Laser Printer and Ink Jet transparencies last? Do they go bad, or break down? I have a stack of them, still in the boxes, a lot are unopened. I scavenged them about 10 years ago, when people were getting rid of them. I wanted them for a Photography Project, that I?ve never had time to try. At this point, I?d like to know if I?m wasting space storing them. Zane

5 years, 2 months

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test-drb March 2020