test-drb

test-drb@ccmp.vtda.org

101090 discussions

Looking for a front panel fastener for a DEC SA482 rack

by alanp＠snowmoose.com

As the subject says ... I am looking for one of the fasteners that holds on the front panel of a DEC SA482 rack. It is a Dzus-like head stud, except that it is turned with a 4mm hex key. Anyone have one or know where I can get one? alan

17 years, 6 months

PDP-8/e and terminals in West Sussex, UK

by ball.of.john＠gmail.com

>Thanks to Martin for grabbing 14 DEC terminals from me last week -- very >pleasant to meet someone who is still working with PDPs and real terminals >in the wild! > >I've just passed our waste electrical skip at work and noticed that >someone has dumped a PDP-8/e box in there. I'm being imprecise about this >because I've never seen one before. This isn't a big rack, just a single >heavy box fronted by an orange and brown PDP-8/e front panel. I assume >it's the processor itself. If I can chuck this in my car this evening, >would anyone here be able to pick it up from me by the end of this month? Oh man, I am really interested but I really wish I didn't live in Western Canada ;_; If I knew someone close to you I would ask them to pick it up for me and then ship it in chunks but even then it would still be expensive.

17 years, 6 months

Lear Siegler ADM-5 schematics?

by mcguire＠neurotica.com

Hey folks. I'm looking for schematics for the Lear Siegler ADM-5 terminal. I don't see anything related on Bitsavers, which surprises me. Would anyone have this handy? Thanks, -Dave -- Dave McGuire Port Charlotte, FL

17 years, 6 months

OmniProm programmer

by jeffj＠panix.com

I'm trying to revive an EPROM programmer: the bottom label says Omni-Prom Programmer model OMNI-01 SherTek, Inc. Memphis, TN USA but the inner label says P/N OMNI05, V7.0, R0.0 (C) 1986, SherTek Inc. It has 28, 40 pin ZIF sockets on top, internal power supply. But the only interface is for the PC's parallel port so I'm unsure what protocol it uses to read back the results. I'm missing the floppy with OMNI.EXE the DOS program that ran it. The manual only documents the program menu, not the parallel port protocol. Any clues? -- jeffj at panix.com

17 years, 6 months

FS: PDP-8/L users handbook

by charlesmorris800＠centurytel.net

DEC PDP-8/L Users Handbook (1968). My father was the original owner and he wrote his name on the front cover in Magic Marker, and a couple of other scribbles here and there.Overall good shape. Pages are turning brownish like all old DEC publications do. $10 shipped within the US. Overseas pay actual shipping cost. Please contact me offlist if interested. thanks Charles

17 years, 6 months

UK source of small UNC nuts and bolts?

by ard＠p850ug1.demon.co.uk

This is classiccmp-related in that I am repairing an old HP 'Multiprogrammer' (a modular input/output system for HP2100s, HPIB machines, etc). While dismantling it I had one screw shear off and had to drill out pop-rivets holding a heatsink to the side casting. So waht I am looking for is a source of small UNC nuts and bolts in reasonable quantites. 'Small' means 4-40, 6-32 and 8-32. I would be looking for countersunk and pan head scewws, nuts, lockwashers, etc. 'Reasonable quantities' would be a bag of 100. These are not at all common in the UK, we tend to use BA (older machines) or metric (M3/M4 sizes). Does anyone know a company who can sypply these to the UK? Preferably one based in the UK (to save on postage charges), but there's no real problem with shipping a ag of nuts and bolts from anywhere. -tony

17 years, 6 months

Monroe OC 8820 - OS8MT

by leaknoil＠comcast.net

I just picked up one of these old CP/M boxes but, I've been unable to locate any software for it or documentation. They ran a custom version of CP/M called OS8MT and came with a few different software packages. They were made around 1984 I think. Old-computers.com has a little bit about it if it helps ring any bells. http://www.old-computers.com/museum/computer.asp?st=1&c=1078 If anyone knows of a source for any of these disks or docs I would love to know about it. The system is in excellent shape and the monitor clear and sharp. Really a shame for it to not be able to do anything but, hold my doors open. Thanks

17 years, 6 months

Memory test util for classic macs?

by trag＠io.com

>Date: Sat, 1 Nov 2008 07:11:58 -0700 (PDT) >From: Cameron Kaiser <spectre at floodgap.com> >> Anyone know of a decent memory test utility that runs on classic macs (68k >> based)? >> >> I have an old Mac Portable that I'm struggling to get an OS on -- I >> consistently get "bad F-line instruction" traps when booting from System 7 >> disks (floppies and CD-ROMs), which from what I can tell probably means bad >> memory. I'd like to find out if it IS memory, and if so, whether it's the >> onboard 1mb (I hope not) or on the 4mb expansion... >> >> My internet searches have come up dry (I've found stuff for OS X, and early >> PowerMacs, but nothing for the 68k line). > >If you can find Snooper, I think it has a RAM test tool in it that will work >and does not require the Snooper NuBus board to be installed. RAMometer from (OOB) NewerTech works on older Macs. I know it will work on 68030 Macs. I'm not sure if it will work on 68000 based Macs. It might need the PMMU. I think there's a copy in my webspace: http://www.io.com/~trag Jeff Walther

17 years, 6 months

Memory test util for classic macs?

by mc＠media.mit.edu

Josh, If you can't boot the OS, you'd be hard-pressed to run a memory test. As you already suspect, that error strongly suggests a hardware error. Assuming the memory is not soldered to the motherboard, the first thing I would do is to re-seat the memory. If that doesn't work, I'd try removing some of it, and try different combinations of memory cards to see if some subset works. Usually memory from that era needs to be added and removed in pairs, and needs to positioned in the right slots. --Tim On Nov 1, 2008, at 5:09 AM, cctalk-request at classiccmp.org wrote: > Message: 26 > Date: Fri, 31 Oct 2008 17:24:54 -0400 > From: "Joshua Alexander Dersch" <derschjo at msu.edu> > Subject: Memory test util for classic macs? > To: cctalk at classiccmp.org > Message-ID: <E1Kw1UE-0002Q9-LD at sys27.mail.msu.edu> > Content-Type: text/plain; format=flowed; charset="utf-8" > > Anyone know of a decent memory test utility that runs on classic > macs (68k > based)? > > I have an old Mac Portable that I'm struggling to get an OS on -- I > consistently get "bad F-line instruction" traps when booting from > System 7 > disks (floppies and CD-ROMs), which from what I can tell probably > means bad > memory. I'd like to find out if it IS memory, and if so, whether > it's the > onboard 1mb (I hope not) or on the 4mb expansion... > > My internet searches have come up dry (I've found stuff for OS X, > and early > PowerMacs, but nothing for the 68k line). > > Thanks, > Josh

17 years, 6 months

Looking for a ST419

by jeff.kaneko＠juno.com

Geez, the 419 was uncommon, even in it's own time. And then, most of the ones I saw didn't work. If you don't mind 'wasting' part of the drive, I would think just about any 6-headed mfm drive would work. There's some difference (which I have been unable to quantify) between different models of MFM drives (of equal or similar geometry) that allows some drives to work in some applications, but not others. If there's anyone out there intimately familiar with the ST-506/412 interface, now would be a good time to offer some suggestions as to why this is so. -- Jos Dreesen / Marian Capel <jos.mar at bluewin.ch> wrote: I am in the market for a known working ST419 MFM disk System software forces me to the 306 Cyl / 6 Heads format (@ 32 256-byte sectors ) Location : Switzerland . Jos Dreesen _____________________________________________________________ Get the party started with a huge selection of quality party supplies. Click now! http://thirdpartyoffers.juno.com/TGL2121/fc/Ioyw6i3lzvGedBaI1hnMJrqILfEueSS…

17 years, 6 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb