test-drb March 2014

test-drb@ccmp.vtda.org

175 participants
175 discussions

FREE: (Seattle) Motorola EXORterm 155 (very dirty)

by derschjo＠gmail.com

Got a Motorola Exorterm 155 terminal in kind of sad shape. Everything's there, but this thing was home to more than a few mice before I got ahold of it, and it'll need a serious cleaning and probably some component-level repair in the monitor and power supply sections. The logic PCB is unscathed (and uses the venerable Motorola 6800 CPU). Here's a pic (this is just the terminal+keyboard on top, not the EXORmacs system on the bottom): http://yahozna.dyndns.org/scratch/exormacs/exorterm.jpg I have too many other projects and I get the feeling I'm not going to get around to this one for a very long time. If anyone wants this for parts or otherwise, come and grab it in the Seattle area :). - Josh

11 years

Hardware for an Exhibition at the Barbican, London

by samuel.twidale＠barbican.org.uk

Hi all, I'm working on an exhibition for the Barbican Centre in London and need to acquire a few pieces of 'digital history' for one section. I've been asking around to find certain items and have been pointed in the direction of this group. So here is a list of what I am looking for: Commodore PET Apple Macintost 128k Apple II Sinclair ZX Spectrum BBC Micro + Cub Monitor NeXt Cube A couple of G3 iMacs Please get in touch if you are able to help us find these items - we would be either looking to loan for 5 years or to buy outright. Thanks for your help, Sam Samuel Twidale Exhibition Technical Consultant Barbican International Enterprises T: 020 7638 4141 ext: 7333 Barbican Centre Silk Street, London, EC2Y 8DS barbican.org.uk Find us on Facebook | Twitter | Blog | Flickr| YouTube Digital Revolution (3 Jul?14 Sep 2014): an immersive exhibition of art, design, film, music and video games from the 1970s to the future. Opening this summer at the Barbican P before you print think about the Environment *********************************************************************************** This e-mail, and any attachment, is confidential. If you have received it in error, please delete it, do not use or disclose the information in any way, and notify the sender immediately. The contents of this message may contain personal views which are not the views of the Barbican Centre, unless specifically stated. All liability for errors and viruses is excluded. *********************************************************************************** --------------------------------------------------------------------------------------- This email has been scanned for email related threats and delivered safely by Mimecast. For more information please visit http://www.mimecast.com ---------------------------------------------------------------------------------------

11 years

FFS: SW and books

by classiccmp＠crash.com

Found a box of OS/2 and DOS/Windows things I have no use for. Please send claims to smj+classiccmp at crash.com rather than the list. First come, first served. If you want anything, you pay for shipping in the form of USPS Flat Rate boxes - small, medium, or large, and whatever mix of them is required. Sorry, the wait in line to plead for permission to send something at media mail or book rates isn't on the menu. If you're near Berkeley, CA then local pickup is a possibility. If you feel moved to include any extra dollars above S&H, they will go to the anaerobic yeast by-products research fund... Software ======== IBM Object REXX for Windows 95 v1.0 shrink wrapped Seagate/Arcada Sytos Premium Backup and Recovery for OS/2 - with "OS/2 Warp and LAN Server 4.0 Support!" - two copies, each shrink-wrapped Symantec Time Line Project Management v3.0 for DOS, 3.5" floppies Symantec Time Line Project Management v4.0 for DOS, 3.5" floppies Org Plus for Windows v3.0 (org chart creation), shrink-wrapped Berkeley Systems "After Dark for Windows" screensaver, 1991, 5.25" floppy only DeScribe v4.0, Beta v1.0, for OS/2, 1992, five 3.5" floppies only - no docs Lotus SMTP/MIME MTA rel 1.06 for OS/2, WinNT, and Unix, sealed CDROM - no docs Certified for: - OS/2 Warp Connect - Windows NT Server 3.51 and 4.0 - IBM AIX 4.1.4 - Sun Solaris SPARC 2.5 and 2.5.1 - Sun Solaris Intel Edition 2.5 and 2.5.1 Books ===== Godfrey, "Programming the OS/2 Kernel" ISBN 9-780137-237760 Iacobucci, "OS/2 Programmer's Guide" ISBN 0-07-881300-X Microsoft, "OS/2 Programmer's Reference Volume 1", ISBN 1-55615-220-5 Microsoft, "OS/2 Programmer's Reference Volume 2", ISBN 1-55615-221-3 Microsoft, "OS/2 Programmer's Reference Volume 3", ISBN 1-55615-222-1 Microsoft, "OS/2 Programmer's Reference Volume 4", ISBN 1-55615-259-0

11 years

intro

by kruhe2011＠gmail.com

Hello all. I'm a relatively recent list subscriber who has spent the last 3 months lurking and learning. Since my earliest computing experiences date >from the mid-1980s, I lack firsthand experience with a number of the systems discussed here, so I have sat back, listened, and kept my keyboard quiet.I would like to introduce myself, though, because one of these days I might have something to add to the discussion. At this point, I've managed to accumulate a few interesting machines, of which my favorites are a "chiclet" PET (which will be my maiden restoration project), an AT&T 7300 (in working condition and on its way to me now), and an IBM RS/6000 Model 140 (which is neither "vintage" nor rare, but I wanted a RISC/AIX system). Currently, in my "spare" time (i.e., not often enough), I'm working on restoring and patching some old gaps in my knowledge of basic electronics and circuit design. I think my desire to do that is primarily what motivated me to take up this hobby in the first place. For now, I'll just add that I currently live in NY, and I'm looking forward to attending VCF East, which will be my first VCF. Maybe I'll even get to meet some of you there. OK, I'm shy, so I'm just going to tiptoe back out of here now...

11 years

DEC + other junk all gone

by dstalk＠execulink.com

Thanks to all who enquired. Everything is now gone. Don

11 years

Motorola EXORmacs EPROMs: Already imaged?

by derschjo＠gmail.com

Hey all -- As I'm in the process of moving stuff out of storage and into my new spacious(*) basement, I keep finding new projects and getting immediately sidetracked by them :). I dug out a Motorola Exormacs (68K development platform) machine that needed a good scrubbing and it's up and running again (mostly -- I have no disk hardware). This has a number of EPROMs in it and I'm curious if these have been archived anywhere. A cursory glance at the 'net hasn't revealed anything but before I go through the process of dumping all of these (and there are a lot) I figured I'd check here. For the record, these are what I have: - 68K Debug Board - MACSbug 2.6 (6 2716s) - 68K MPU board - 2 2716s - Universal Intelligent Peripheral Controller - 7 2716s - Multi-Channel Communications Module - 5 2716s Thanks as always, Josh (*) not for long at this rate...

11 years

odd Burroughs 1960s Comparator of System Timing Demo Kit? WHATZIT?

by COURYHOUSE＠aol.com

see this item with many photos at.... http://smecc.org/burroughs_what-is-it_page_-_artifacts_needing_identificatio n!.htm item C_O_S_T Comparator of System Timing Demo Kit? seems to be 2 of these in the pouch... pouch will not close with both so we have decided one board and one ruler is a duplicate. Maybe should should go to C.B.I if they do not have one? Burroughs COST - tell us about how this was used and any interesting stories .. This was in the Jack Aldrige collection Thanks, Ed Sharpe archivist for SMECC

11 years

Countdown to VCFSE 2.0

by keviford＠gmail.com

The Vintage Computer Festival Southeast (VCFSE) 2.0 is just five weeks from today! The show, put on by the Atlanta Historic Computer Society (AHCS) and the Computer Museum of America (CMofA), will take place in Roswell, GA on May 3 and 4. We selected those dates to make it easy for people to attend both VCF East and VCF Southeast this year. The venue will be the same CompUSA store building in Roswell GA as last year. This year's exhibit space will be greatly enlarged over last year, occupying the whole retail space of the store. About 2/3 of the space will be occupied by a museum display of personal computing artifacts from the Kenbak 1 forward. The remaining 1/3 of the retail space will contain hobbyist vintage computing exhibits. For those who missed last year or who would like to see it again, the highly-acclaimed Apple pop-up museum from last year's festival will again be available. The popular retro-gaming area and introduction to soldering activity will be available again. This year, we are also working to bring in a number of vendors, assemble a stellar slate of speakers, and offer workshop experiences. Of course, the kids' scavenger hunt will be back this year too. For more information please visit http://www.vintage.org/2014/southeast/. We hope to see you there!

11 years

Speed faults and an RA82 disk

by ball.of.john＠gmail.com

My PDP-11/84 came with an RA82 disk and after three years of work I have it finally coming up to speed and going ready. I had to redesign the circuit that generated a tach pulse for monitoring the speed of the spindle. The original circuit never wanted to work for me. http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/logic.jp g http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/IMG_5731 .jpg The new circuit however is unreliable. At complete random the drive will throw both nonfatal and fatal speed errors however at no time can you hear that the speed of the drive has changed (and for error DA and error 26 you would definately hear it), nor can I catch the last moments before spindown on an oscilloscope as to see if the transistor is locking up or if there's some sort of interference. Again, it occurs randomly. I can be seeking or reading or writing or just idling the drive and it will happen and it makes the drive impossible to use. Could this just be me using too low speed a transistor or could this be something else that I have not yet considered? The reason I'm bypassing the original 74LS14 is that even when replaced it leaks about a volt onto the input pin and forced the signal high. I could not figure out a way to pull that down and still get the signal to come up properly so I simply removed it from the equation. -John

11 years

My experiences with an SD21EC

by terry＠webweavers.co.nz

Some of you might like to read about my impressions of the SD21EC: A flash drive alternative to the Commodore 1541 disk drive. http://www.classic-computers.org.nz/blog/2014-03-29-2sd21ec-for-commodores.… Terry (Tez)

11 years

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test-drb March 2014