- test-drb@ccmp.vtda.org - classiccmp.org

by michael.99.thompson＠gmail.com

> > On Thu, Aug 18, 2016 at 8:56 AM, Noel Chiappa <jnc at mercury.lcs.mit.edu> > wrote: > > So, I've been working for a while on a page about DEC indicator panels > (the > > standardized 36x4 light arrays which go into a 19" rack, with an inlay to > > customize it to a particular device). It's online now, here: > > > > http://ana-3.lcs.mit.edu/~jnc/tech/DECIndicatorPanels.html > > > > Does anyone happen to have a good image of an RK08 panel, or an RF11, > which I > > can use here? > > > > Even better, does anyone know of, or have images of, panels which are not > > listed here? (I am not including the unknown 'RK' panel in the RSTS > document, > > which will be the subject of a separate message.) > > > > Thanks! > > > > Noel > How about PDP-9 panels? TC02, 18-bit DECtape controller <https://4310b1a9-a-11c96037-s-sites.googlegroups.com/a/ricomputermuseum.org…> TC59, 18-bit Magnetic Tape controller <https://4310b1a9-a-11c96037-s-sites.googlegroups.com/a/ricomputermuseum.org…> -- Michael Thompson

9 years, 9 months

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Power Supply capacitor physical size

by witchy＠binarydinosaurs.co.uk

Hi folks, Looking at the PSU of my Lisa's ProFile after it died gracefully not so long back and it obviously needs new caps since one of the 1000uF 16V ones has bulged badly. While I'm replacing that one I'll do the 47uF 250V ones too. And the mains filters but I've got a stock of spares for them already. Apologies for what's probably a dumb question, but when it comes to cap replacement I know I can go up a notch if the required capacitance or voltage isn't available so 25V and 400V is ok, but what about physical size? I can get the correct capacitance/voltage but they're physically much smaller than the ones I'm replacing, like 10mm instead of 16mm diameter. If I go up to 25V I can get 16mm diameter which is the size of the old ones. Am I worrying for nothing? Cheers, from a room not filled with RIFA smoke for once :) -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?

9 years, 9 months

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Big Apple/Atari/Commodore/TRS-80 sale today in Orange, CA

by brendan＠bslabs.net

https://orangecounty.craigslist.org/gms/5763569283.html I went to this sale last week and picked up a DECmate and some Mac stuff, the amount of stuff he had was remarkable. Sale is today only. Some of the cool stuff I saw last week: - 2 x ADM-3 terminals - Quadra 950, WGS 95, WGS 9150 - 2 x Macintosh Portrait Display - lots of classic Macs, some PPC AIOs (52xx), G3/G4 iMacs - Apple Studio Display (the original blue-colored LCD) - Centris 650, beige G3s - so much other Atari/Commodore/TRS-80 stuff Brendan

9 years, 9 months

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DEC Indicator Panels page

by jnc＠mercury.lcs.mit.edu

So, I've been working for a while on a page about DEC indicator panels (the standardized 36x4 light arrays which go into a 19" rack, with an inlay to customize it to a particular device). It's online now, here: http://ana-3.lcs.mit.edu/~jnc/tech/DECIndicatorPanels.html Does anyone happen to have a good image of an RK08 panel, or an RF11, which I can use here? Even better, does anyone know of, or have images of, panels which are not listed here? (I am not including the unknown 'RK' panel in the RSTS document, which will be the subject of a separate message.) Thanks! Noel

9 years, 9 months

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VCF videos ahoy

by cctalk＠snarc.net

Tonight we posted a bunch of old (1997-2007) VCF West videos. Please see http://vcfed.org/wp/2016/09/03/many-more-videos-are-posted/. Many more will be posted soon.

9 years, 9 months

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Docs for DEC MPS Intel 8008 Development System scanned

by COURYHOUSE＠aol.com

Jack, how many of these are there out there? ... Nice front panel on it too! Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 8/26/2016 9:41:04 A.M. US Mountain Standard Time, j at ckrubin.us writes: The MPS (MicroProcessor Series) was an attempt by DEC to introduce an Intel 8008-based system as a cost-effective replacement for minicomputers used in process control. The system has its own 14-bit blinkenlights front panel for accessing the 8008. Docs here: https://www.dropbox.com/sh/bezyixp76x2q3i4/AAAdGzzycbTIys1Ftde2BpR5a?dl=0 I'll leave the docs up for a week or so. Jack

9 years, 9 months

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Atari / GEM docs Free to good home (York, UK)

by pete＠dunnington.plus.com

These are primarily for Atari ST, mostly photocopies in A4 ring binders, to go as one lot: * ISV Development System documentation for Atari 520ST includes BIOS listing and more. ring-bound The following items are probably provided as part of this... * Listing of GEM "hello" program (GEM sample desktop accessory) Module: HELLO, by Tom Holander, Digital Research Feb 1986 ring-bound photocopy * Atari ST BASIC Source Book, 1985 ring-bound, printed original * Atari Logo Source Book 1985, small spiral-wire-bound published copy * GEM PRogrammer's Guide - Volume 1: VDI GEM PRogrammer's Guide - Volume 2: AES 1985, Digital Research, ring-bound photocopy * GEM DOS 1.0 Spec Version 13 May 16 1985 Digital Research "DR Confidential: Internal Use Only. Not to be copied or given to customers." ring-bound photocopy * "The Long-Awaited 'Line-A' Document" describes "quick-and-dirty" graphics access using 68000 Line A exception. Ring-bound with GEM DOS 1.0 Spec * ST Series BIOS Rev.A 2/13/85 (Atari 130 ST and 520 ST) "Atari Corporation Confidential" Ring-bound with GEM DOS 1.0 Spec I need to move these before Saturday 17th September (2 weeks from now). If they're not claimed by then, I'll donate them to The Computer Sheds (http://www.computermuseum.org.uk). Because of the weight, it would be expensive to ship these things, though if anyone is really keen I'll consider it. Collection from York would be greatly preferred (tea and biscuits supplied) - or I can probably take them to the DEC Legacy Event in Windermere for collection on the weekend of 15/16th October (pay for your own tea and biscuits). -- Pete Pete Turnbull

9 years, 9 months

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and one more I almost missed... FTGH

by pete＠dunnington.plus.com

How many people remember the Wren Executive System? Or have even heard of it? Well, you can now own the manual for this not-very-successful sort-of-like-an-Osborne luggable! Free to good home from York, UK. Loose pages included. Terms and conditions apply. YMMV. E&OE. -- Pete Pete Turnbull

9 years, 9 months

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more stuff FTGH (York, UK)

by pete＠dunnington.plus.com

And finally, some ancient and thus debatably classic software: * Zenith Data Systems - Microsoft Windows 3.0/3.1 Actually just the manuals (yes, once upon a time, in a universe far far away, Windows had actual manuals) and license. * Tulip Computers Windows 386 V2.10D Ring binder including User Guide, Desktop Applications manual, Write manual, Paint manual 4 x 3.5" HD disks - 3 for Windows, 1 for Tulip utilities * AppleShare 4.0 boxed, assorted manuals etc, 4 x 3.5" HD disks, 1 x CDROM includes the serial number needed to validate your server * HiSoft C Integrated Compiler/Editor manuals 1985-88 for CP/M 2 x 3" disks (presumably for Amstrad PCW) All in the original binder, with serial no. * HiSoft Nevada Cobol CP/M compiler/editor manuals, 3" disk for Amstrad PCW, with s/no. I need to move these before Saturday 17th September (2 weeks from now). If they're not moved by then, I'll donate them to The Computer Sheds (http://www.computermuseum.org.uk). Because of the weight, it would be expensive to ship these things, though if anyone is really keen I'll consider it. Collection from York would be greatly preferred (tea and biscuits supplied) - or I can probably take them to the DEC Legacy Event in Windermere for collection on the weekend of 15/16th October (pay for your own tea and biscuits). I need to move these before Saturday 17th September (2 weeks from now). If they're not claimed by then, I'll donate them to The Computer Sheds (http://www.computermuseum.org.uk). Because of the weight, it would be expensive to ship these things, though if anyone is really keen I'll consider it. Collection from York would be greatly preferred (tea and biscuits supplied) - or I can probably take them to the DEC Legacy Event in Windermere for collection on the weekend of 15/16th October (pay for your own tea and biscuits). -- Pete Pete Turnbull

9 years, 9 months

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Free to good home (York, UK)

by pete＠dunnington.plus.com

I'm trying to clear some space so I can actually get to classic things I want to play with, so I have the following to give away if anyone is interested: * Cromemco 16FDC Floppy Disk Controller Instruction Manual (2 copies) * Cromemco D+7A Input/Output Module Instruction Manual * Digital (DEC) BC19V-02 cable (DB25 to DD50) * HP JetDirect card (10base2, 10baseT, Localalk) * 5 x Iomega/Fuji ZIP (PC100) disks, mostly new unused * Box of 3.5" DSDD and HD floppies with assorted software, including Borland Turbo Assembler Borland Turbo Debugger Borland Turbo Profiler 3 sets of 4 disks : Borland Turbo Pascal for Windows set of 3 Borland Turbo Pascal Professional disk: Install/Turbo Vision/Compiler Help/BGI/Utilities TPCX Computer Associates SuperProject 3-user Lanpak Microsoft MS-DOS 5 Upgrade about 28 R:BASE disks, mostly V.4.0 about 25 CD-ROM driver disks (HD not DD) a couple of 3Com Etherdisks 5.01 (HD not DD) about 20 Logitech Mouseware 8.2 Multilingual disks: 2 x Disk 1 of 2 18 x Disk 2 of 2 * The Penguin Computing Book, Susan Curran and Ray Curnow, Penguin Books 1983, ISBN 0140465995 * Mathematical Logic for Computer Science, M. Ben-Ari, Prentice Hall 1993, ISBN 013564139X * 8086/8088 16-Bit Microprocessor Primer, Christopher L Morgan and Mitchell Waite, Byte Books 1982, ISBN 0070431094 * Fundamentals of Operating Systems, 4th Edition 1990, A.M.Lister and R.D.Eager, Macmillan 1979-1988, ISBN 0333469879 * Structured Computer Organisation, 3rd Edition 1990, Andrew Tanenbaum, Prentice-Hall 1990, ISBN 0138528721 * Acorn Archimedes 400 Series User Manual, and Welcome Guide * Assembly Language Programming for the Electron (Addison Wesley, John Ferguson and Tony Shaw) ISBN 0201145278 * a collection of Archive (Acorn Archimedes users' magazine) from Vol.1 No.1 (Oct.1987) to Vol.5 No.1 (Oct.1991) plus half a dozen extras. * 10 Electron User cassettes, Oct.1989 - July 1990. * manuals and stuff for BBC Micro: Wordwise Plus manual, 2nd Addition (sic), 1985 (Computer Concepts) ViewStore User Guide, 1st Edition, 1985 (Acorn, Acornsoft) ISBN 0907876455 View User Guide, 2nd Edition, 1986 (Acorn, Acornsoft) ISBN 1852500212 View User Guide, 1st Edition, 1985 (Acorn, Acornsoft) ISBN 0907876277 Into View, 2nd Edition, 1984 (Acorn, Acornsoft) ISBN 0907876811 View Guide, 2nd Edition, 1983 (Acorn, Acornsoft) ISBN 0907876803 View Reference Card (SBB31/R), 1985 (Acorn, Acornsoft) ViewSheet Reference Card (SBB07/R), 1984 (Acorn, Acornsoft) Electron Plus 1 User Guide, 1984 (Acorn Computers) Graphs and Charts, 1st Edition, 1982 (Acorn, Acornsoft) ISBN 0907876048 Graphics Extension ROM User Manual (Acorn, Acornsoft) (copy; not original, but comb-bound) A few of the above are also going on a well-known auction site, but naturally ClassicCmp subscribers have priority :-) I need to move these before Saturday 17th September (2 weeks from now). If they're not moved by then, I'll donate them to The Computer Sheds (http://www.computermuseum.org.uk). Because of the weight, it would be expensive to ship many of these things, though if anyone is really keen I'll consider it. Collection >from York would be greatly preferred (tea and biscuits supplied) - or I can probably take them to the DEC Legacy Event in Windermere for collection on the weekend of 15/16th October (pay for your own tea and biscuits). -- Pete Pete Turnbull

9 years, 9 months

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Atari / GEM docs Free to good home (York, UK)

by pete＠dunnington.plus.com

These are primarily for Atari ST, mostly photocopies in A4 ring binders, to go as one lot: * ISV Development System documentation for Atari 520ST includes BIOS listing and more. ring-bound The following items were probably provided as part of this... * Listing of GEM "hello" program (GEM sample desktop accessory) Module: HELLO, by Tom Holander, Digital Research Feb 1986 ring-bound photocopy * Atari ST BASIC Source Book, 1985 ring-bound, printed original * Atari Logo Source Book 1985, small spiral-wire-bound published copy * GEM PRogrammer's Guide - Volume 1: VDI GEM PRogrammer's Guide - Volume 2: AES 1985, Digital Research, ring-bound photocopy * GEM DOS 1.0 Spec Version 13 May 16 1985 Digital Research "DR Confidential: Internal Use Only. Not to be copied or given to customers." ring-bound photocopy * "The Long-Awaited 'Line-A' Document" describes "quick-and-dirty" graphics access using 68000 Line A exception. Ring-bound with GEM DOS 1.0 Spec * ST Series BIOS Rev.A 2/13/85 (Atari 130 ST and 520 ST) "Atari Corporation Confidential" Ring-bound with GEM DOS 1.0 Spec I need to move these before Saturday 17th September (2 weeks from now). If they're not claimed by then, I'll donate them to The Computer Sheds (http://www.computermuseum.org.uk). Because of the weight, it would be expensive to ship these things, though if anyone is really keen I'll consider it. Collection from York would be greatly preferred (tea and biscuits supplied) - or I can probably take them to the DEC Legacy Event in Windermere for collection on the weekend of 15/16th October (pay for your own tea and biscuits). -- Pete Pete Turnbull

9 years, 9 months

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RC2016/10 COMPETITION ENTRY IS OPEN!

by mark＠wickensonline.co.uk

RC2016/10 COMPETITION ENTRY IS OPEN! I am pleased to announce that Retrochallenge 2016/10 ? the ?October? edition of the Retrochallenge - will run and is now open to entrants! Roll-up Roll-up! Get those thinking caps on and come up with an excellent retro-computing project. Why not? The Retrochallenge 2016/10 competition will run from October 1st to the end of the month. Blog entries should be complete by midnight on Monday 31st October GMT. I would like to extend the warmest welcome to the fantastic John W. Linville who is taking over the running of the October competition and, if he gets the bug, make take the reins for future Retrochallenge Competitions. If you would like to enter please email john using the address ?linville @ /tuxdriver.com?/(removing spaces)//with your name (or handle), a brief synopsis of your project and a URL for your blog. See the website http://retrochallenge.org for more details. ABOUT RETROCHALLENGE In a nutshell, the RetroChallenge is a loosely disorganised gathering of RetroComputing enthusiasts who collectively do stuff with old computers for a month. The event is very much open to interpretation? individuals set there own challenges, which can range from programming to multimedia work; hardware restoration to exploring legacy networking? or just plain dicking around. It really doesn?t matter what you do, just so long as you do it. While the RetroChallenge has its competitive side, it?s not really a contest? it?s more like global thermonuclear war ? everyone can play, but nobody really wins. COMPETITION RULES 1. Retrochallenge commences 1st October 2016 and runs until 31st October 2016. 2. In order to qualify, computer systems must be vintage (this used to be defined as 10 years old, but typically ?vintage? is older than that now ? don?t expect to be accepted if you are using a box capable of running Windows XP for example!). Exceptions will always be made for exotica! 3. Gaming consoles and PDAs qualify if they were made in the previous century. 4. Where appropriate, replica hardware and emulators may be used. 5. Entrants are responsible for adequately documenting their projects and submitting occasional updates during the contest, preferably with an announcement on twitter with #retrochallenge. 6. Projects may encompass any aspect of retro-computing that tickles the fancy of the individual entrant. 7. Winners will be carefully selected and adulation bestowed. 8. Have fun!

9 years, 9 months

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Wanted PATA HBA and IDE/UDMA Drive

by t.gardner＠computer.org

Hi: Looking for a PATA HBA (PCI, EISA or ISA) and if available an associated ATA/IDE drive preferably UDMA/33 but no faster than UDMA/100 This would likely be found in a PIII Pro or earlier system built prior to 1997 (I think the Natoma 440FX PII was the first to integrate IDE into the Southbridge) It might be from a later system as an expansion add in. This maybe a repeat request but I don't recall seeing my first request posted to the list - sorry if I'm wasting time. Any reasonable offer will be considered. Thanks Tom t.gardner at computer.org 650 941-5324

9 years, 9 months

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X Windows System Design Principles, a lecture by James Gettys

by tlindner＠macmess.org

I think it is dated 1988. https://www.youtube.com/watch?v=KdmNHM9BKY0 Interesting fact: His name is Gettys. Interesting quote: "We should never have done [the] Arc [drawing command], we should have done some spline implementation." -- -- tim lindner "Proper User Policy apparently means Simon Says."

9 years, 9 months

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How to build an ASCII CRT terminal, circa 1967

by COURYHOUSE＠aol.com

same as univac uniscope or? In a message dated 8/31/2016 8:41:06 A.M. US Mountain Standard Time, aek at bitsavers.org writes: On 8/31/16 8:35 AM, Paul Berger wrote: > it would be possible to have it generate 7 bit ASCII > code by using an appropriately "programmed" interposer under the keys. it does say the keyboard generates ASCII on pg 3-2 of the maint manual..

9 years, 9 months

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How to build an ASCII CRT terminal, circa 1967

by aek＠bitsavers.org

Magnetorestrictive delay lines and a charactron. http://bitsavers.org/pdf/rca/terminal/70_750/70-01-752-U_Model_70_752_Video… We got one (no keyboard) a couple days ago with the manual. I'm still cleaning it up. It had something nesting in it and the inside has sunflower seed husks in it. It was made with plastic DIP ICs, no idea of the logic family. The keyboard was made by IBM, don't know what character code it produces. Pretty funky if it encodes ASCII.

9 years, 9 months

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BA123 Side panels and Stuck TK50

by shadoooo＠gmail.com

Hello, > The same cabinet has a TK50 and I foolishly put a cartridge into it and > now it won't come out. It is called being 'stuck'. How do proceed to > get this TK50 cartridge out? Error 'stuck' means that the tape has been "glued" to the head because of the effect of the tape binder being converted to adhesive due to age and moisture. You can remove the cartridge in this way: - pull the drive out of the machine - carefully unscrew the metal cover over the internal reel and the head to expose it - slowly insert a paper sheet between the tape and the head, in the same direction of the tape, to detach it without damage - slowly rotate the front motor (from bottom side) in way to rewind all the tape from the back reel to the cartridge reel - detach the tape leader if necessary - now keep the electromagnetic cartridge unlock mechanism pressed, and remove the cartridge from the drive A tape in this condition of striction is probably unusable anyway, unless you back it up a little in an oven, but even so it could be readable just for a couple of hours > Also, the TQK50 controller never saw the drive and I was wondering if > the PROM's (after 30 years) on the board lose their data? Well, I never seen an UV-EPROM loose it's data, unless the erase window cover is missing and the memory exposed to the sun light. Andrea

9 years, 9 months

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BA123 Side panels and Stuck TK50

by dj.taylor4＠comcast.net

This is real trivia but I have a BA123 cabinet (MicroVax II) and there a screws that hold the side panels in place, and mine are missing. Does anyone know the type of screw I should go look for at the hardware store? The same cabinet has a TK50 and I foolishly put a cartridge into it and now it won't come out. It is called being 'stuck'. How do proceed to get this TK50 cartridge out? Also, the TQK50 controller never saw the drive and I was wondering if the PROM's (after 30 years) on the board lose their data?

9 years, 9 months

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It's Terminal Week on RetroBattlestationst

by fozztexx＠fozztexx.com

It's Terminal Week on RetroBattlestations! https://redd.it/500myn This week is about those devices that you connect to a computer so that you can read output and provide input through a keyboard. The oldest terminals used paper for the display, and in the mid '70s the "glass TTY" became much more common. In the early days terminals had very little smarts in them. Some were electro-mechanical, later they had some circuitry, and by the late '70s almost all were using microprocessors inside. In fact if it weren't for a terminal company, Intel wouldn't have designed the 8008 microprocessor, the grandfather of the x86! Terminal Week is from August 28th to September 3rd. To participate in the contest you need to make a new post to RetroBattlestations of a picture or video that you shot of a computer terminal for this contest. At the end of the week 2 winners will be selected based on the oldest/newest setups as described above and will receive custom flair. In addition to the flair winners 3 other winners will be randomly selected. Each winner will receive their choice of two retro stickers: http://imgur.com/a/iAS5T -- Follow me on twitter: @FozzTexx Check out my blog: http://insentricity.com

9 years, 9 months

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It's Terminal Week on RetroBattlestationst

by vintagecomputer＠bettercomputing.net

I don't have anything that'll be competitive with the teletype guys but I'll enter anyway. ?For clarity.. does my CT1024 count as a terminal even though it does not possess a dedicated screen? Sent from my Samsung device -------- Original message -------- From: Chris Osborn <fozztexx at fozztexx.com> Date: 2016-08-30 7:06 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: It's Terminal Week on RetroBattlestationst It's Terminal Week on RetroBattlestations! ? https://redd.it/500myn This week is about those devices that you connect to a computer so that you can read output and provide input through a keyboard. The oldest terminals used paper for the display, and in the mid '70s the "glass TTY" became much more common. In the early days terminals had very little smarts in them. Some were electro-mechanical, later they had some circuitry, and by the late '70s almost all were using microprocessors inside. In fact if it weren't for a terminal company, Intel wouldn't have designed the 8008 microprocessor, the grandfather of the x86! Terminal Week is from August 28th to September 3rd. To participate in the contest you need to make a new post to RetroBattlestations of a picture or video that you shot of a computer terminal for this contest. At the end of the week 2 winners will be selected based on the oldest/newest setups as described above and will receive custom flair. In addition to the flair winners 3 other winners will be randomly selected. Each winner will receive their choice of two retro stickers: http://imgur.com/a/iAS5T -- Follow me on twitter: @FozzTexx Check out my blog: http://insentricity.com

9 years, 9 months

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DTC01 DECtalk repaired

by spacewar＠gmail.com

Thanks to the source code for the MAME DTC01 DECtalk driver, which is apparently the only place there is any information on the self-test error LED codes, I determined that there was a failed HM6264LP-12 static RAM chip. The error code narrows it down to a pair, and swapping narrowed it down to a single chip. After replacement with an HM6264ALP-12, and powering up, I was delighted to hear "DECtalk version one point eight is running." At some point if I get sixteen 27128 or 27C128 EPROMs, or maybe eight 27256 or 27C256 with four jumper changes on the board, and two 82S191 or equivalent PROMs, I might upgrade it to 2.0. I've only ever seen firmware versions 1.8 and 2.0, but there are rumors of an intermediate version and a version 2.1. Does anyone have these?

9 years, 9 months

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CHM

by dave.g4ugm＠gmail.com

Folks, I am going to be in San Francisco in a few weeks' time, but only for about a day and half. I could spare 2 hours at CHM but is it worth dragging myself up there on a Sunday when there are no working exhibits, and I will only have two hours. Dave.

9 years, 9 months

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RX02 and RXV11 emulators

by jwsmail＠jwsss.com

I got interested in a thread which mentioned RX02 emulators by C H Dickman, and found a nice page on that, which is still live. However, one of the pages was on geocities, and though there are about 10 or 15 hits for the path below, noone had any links which i could find which hit the original project. There are a number of dead domains on both the RX01 page and elsewhere. The link below has the listings, the zip file, all captured and downloadable. http://www.chdickman.com/rx02/ https://web.archive.org/web/20090114185527/http://www.geocities.com/saipan5… http://torok.info/computing/pdp11/rx02/index.htm The Bella Torok project extended the Dickman work to use an Arduino. The design however is not minimal in terms of what you really need to do to get a working version with the Arduino. A lot of the wires are building out a board which can be had for about 5 bucks which adds a 16 character display and 4 buttons to an arduino. He also implements an SD card on the arduino, all using a lot of wiring. If one buys the Arduino, the 16x2 / button shield, and one of the generic SPI Sd cards, I suspect there is way less involved in making up the Torok version. He also has a Raspberry Pi version which might be interesting too. thanks jim

9 years, 9 months

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AT&T 3b2, IBM RT, others

by jnc＠mercury.lcs.mit.edu

> From: Josh Dersch > Wish the seller would part it out (and ship). So, send the seller an eBay message saying you're interested in some of the items, and you're in contact with other collectors who are interested in other items, but: you don't want to buy the entire lot; and suggest to the seller that they will i) sell it faster, and ii) get more money in total, if they split the lot up, and are willing to ship things. (Assuming, of course, that it doesn't sell as-is.) (Speaking of getting more money, did you all see the PDP-11/34 system that included a couple of RL01's and some RM03's? It only drew a single bid, and went for $2K. I was vaguely interested in the RM03's, but didn't want to deal with the RL01's, so I didn't bid. Wonder how many others made similar calculations? And I wonder if they buyer will actually use all of it, or put part of it - perhaps the RL01's or the RM03's - in a corner to gather dust? Wuz gonna send them a message of the sort I suggested above, but it sold.) Noel

9 years, 9 months

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Motorola 88000 system on Epay

by jwsmail＠jwsss.com

a bit pricy, but it seems to be able to be powered up. Looks to be 25mhz according to the boot screen. The seller has done the smoke test for the buyer, and was even going to replace a dead NVram to verify that one message about the config being bad was recoverable. 16mb ram. Seller has done some reasonable searching there won't be much available, but if one wants a 88000 system this isn't bad. Motorola-8120-MC88000-RISC-System-/ http://www.ebay.com/itm/302054107748 I've bought from this vendor, but otherwise no other affiliation. thanks Jim

9 years, 9 months

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AT&T 3b2, IBM RT, others

by seefriek＠gmail.com

I'd really like the AT&T 4425 terminal, which doesn't seem to have been claimed. I spent a couple of years with one on my desk. Any chance they'd ship? My wife and I have an agreement that if I bring home any more VME kit I have to get rid of an equivalent tonnage of other things. So unless that Motorola tower is an 88200 or something suitable esoteric, I probably need to pass. The E&S box looks like a Sun 3/110 or 4/110 with additional boards. I'd love to have one. Obviously, I would have killed for the Explorer or the RTs. Double kill for the 5620. Good they've found homes. KJ

9 years, 9 months

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CHM

by couryhouse＠aol.com

Anytime you see something you have not seen before... it is worthwhile............ ? ed# Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: Dave Wade <dave.g4ugm at gmail.com> Date: 8/29/16 12:11 (GMT-07:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: CHM Folks, I am going to be in San Francisco in a few weeks' time, but only for about a day and half. I could spare 2 hours at CHM but is it worth dragging myself up there on a Sunday when there are no working exhibits, and I will only have two hours. Dave.

9 years, 10 months

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Looking for AT&T WE DSP16A development tools (DOS) and manuals

by jgevaryahu＠gmail.com

Does anyone have a copy of the AT&T/WE DSP16A development tools (assembler, etc) for DOS, and the devkit manual? The actual DSP datasheets and architecture manuals are on bitsavers (oddly, not in the same directory, which was confusing to find): http://bitsavers.trailing-edge.com/pdf/att/dsp/WE_DSP16A_Digital_Signal_Pro… http://bitsavers.trailing-edge.com/pdf/att/dsp/WE_DSP16A_data_sheet_addendu… http://bitsavers.trailing-edge.com/pdf/westernElectric/WE_DSP-16_DSP_Inform… But I'm looking for the actual assembler utility or devkit itself, which are listed (as DSP16A-*) on page 2-3 (pdf page 10) of http://bitsavers.trailing-edge.com/pdf/att/_dataBooks/1995_ATT_Product_Sele… Does anyone have a copy of this, or know someone who has it? -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

9 years, 10 months

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DEC Pro 350/380 Memory Cards - Interchangeability?

by shadoooo＠gmail.com

Hello Rob, I think I found a link: http://vaxhaven.com/images/a/a7/EK-PC380-PS-003.pdf Andrea

9 years, 10 months

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cctalk Digest, Vol 26, Issue 29

by anders.k.nelson＠gmail.com

Hey Rob (and anyone else sniffing signals), I've been using a USB logic analyzer from Saleae (https://www.saleae.com/) for years now and the software is really good. Way cheaper than a standalone unit. I'm unsure if the inputs can handle more than 5v but you could throw a divider network in front and try it. Also there's the Digilent Analog Discovery ( https://www.sparkfun.com/products/13929) which does the same stuff but I can't vouch for the software as I've never used it. Inputs can handle +/-20v apparently. =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com > ---------- Forwarded message ---------- > From: Rob Jarratt <robert.jarratt at ntlworld.com> > To: "'Paul Koning'" <paulkoning at comcast.net>, <rob at jarratt.me.uk>, > "'General Discussion: On-Topic and Off-Topic Posts'" < > cctalk at classiccmp.org> > Cc: > Date: Mon, 29 Aug 2016 17:33:56 +0100 > Subject: RE: DEC Pro 350/380 Memory Cards - Interchangeability? > > > > -----Original Message----- > > From: Paul Koning [mailto:paulkoning at comcast.net] > > Sent: 29 August 2016 15:08 > > To: rob at jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts > > <cctalk at classiccmp.org> > > Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability? > > > > > > > On Aug 28, 2016, at 5:11 PM, Rob Jarratt <robert.jarratt at ntlworld.com> > > wrote: > > > > > > I have a 350 and 380. Neither work. The 380 is reporting a possible > > > memory error on the LEDs. Will the 350's memory work in a 380 (or vice > > versa)? > > > > The 380 has memory on the motherboard, and a model-specific > > daughtercard for expansion memory. > > > > It seems reasonable that the Pro bus (I/O card) expansion memory should > > work in both models, but I don't have any to try that. > > > > If you have a 380 complaining about memory and it has a Pro bus memory > > card installed, I'd suggest removing that card to see if it's happy with > just the > > stock motherboard memory. > > > > paul > > Just reading your reply again. Are you saying it has enough memory on the > board, without using a daughter board? I did see lots of memory on the main > board, but assumed it was video memory. I did try removing the daughter > board altogether at one point, but it still didn't work. :-( > > I wish I had a logic analyser. > > Regards > > Rob >

9 years, 10 months

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complete displaywriter set in Canada

by sales＠elecplus.com

http://www.ebay.ca/itm/201655050108?rmvSB=true I can't believe no one has bid on this! I hope it goes to someone as the complete set, not just for the keyboard! Cindy Croxton

9 years, 10 months

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ICS Microprocessor Training Lab info

by starbase89＠gmail.com

Greetings! About a month ago, I picked up a "Portable Microprocessor Training Lab" made by Integrated Computer Systems. This thing is cool! It consists of three boards and a power supply built into a suitcase. The main system board is mounted in the bottom of the case on top of the power supply. It has an 8080a, an 8255, four ROMs and 4K of RAM with room for four more. It has a hex keypad plus function buttons and eight LED character displays. There is a bank of about 12 terminal pins for +5, ground, audio in and out, clock and a few that aren't named. I take it the audio ones are for cassette? It has two ribbon cable connectors on the edge. One is for the 50 pin cable that connects to the I/O board. The other one is especially cool (to me, at least.) It's meant to hook up to an S-100 chassis for expansion! The second board is for I/O. It has two 8255s, an 8253 and room for eight more RAM chips (but no sockets.) It has connections for cassette, RS-232 and teletype. Connected directly on top of the the I/O board is the "Experimental Parts Assembly." It has I/O terminals for analog signal, plus minus 12v and plus 5, optical in/out and motor control/supply/drive. It has a holder for three AA batteries, a motor, a speaker and a thermistor. Finally, it came with the cassette "Self-study Microcomputer Interface Training Course: Program Cassette Library." The big thing I'm missing is documentation. It came with nothing and I can't find much, even with The Google. A system description, a schematic and something explaining what's in the ROM would be nice. I've also got to find a book on 8080 assembly language. Like I'd said, all I have tried to work on so far have been a C64, an Apple IIe and a TI-99/4a with only a basic understanding of BASIC :-) Lately though, I've been feeling like I need more of an intellectual challenge. If anyone can help with more inflammation about this system, documentation and/or any suggestions you may have, I'd welcome it. Thanks in advance! Joe Giliberti

9 years, 10 months

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FTGH: More miscellaneous old stuff

by mouse＠Rodents-Montreal.ORG

Okay, I took a bit more time going through my storage. (a) The SparQs are indeed disks; I didn't look closely enough. (b) Some more stuff: - Three disks, which IIRC came out of a MicroVAX-II. Two are Micropolis 1325Ds and the third is a plain 1325. Also present are two sets of cables, each set suitable to connect one drive to a controller card. - One HP 9153A (an HP-IB device; it appears to be a 3.5" floppy drive). - One HP 7958A (an HP-IB device; it appears to be disk). - One HP card, likely the interface card from something like a 7958A. It has an HP-IB connector, an ID switch, two connectors for cables to the drive, and a connector apparently for power. In the etch on the component side is the number 07957-60001; on a sticker, below a barcode, is the text *57CNO14515* (or perhaps *57CN014515*, the font is ambiguous). As before, this stuff is in Ottawa, and is yours for the coming and picking it up. Functionality is unknown, and details may be incorrect because they were hand-copied. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

9 years, 10 months

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Imation Travan-1 tapes

by jwest＠classiccmp.org

I have a partial box of new/unopened Travan TR1 tapes (800/400mb) that I have no use for. There are 7 tapes in the box. I'd rather not ship, so my plan is to take it to VCFMW and put on the free table. But iff anyone desperately needs them, make me an offer. J

9 years, 10 months

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test

by jwest＠classiccmp.org

No response necessary - please ignore. J

9 years, 10 months

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Docs for DEC MPS Intel 8008 Development System scanned

by j＠ckrubin.us

The MPS (MicroProcessor Series) was an attempt by DEC to introduce an Intel 8008-based system as a cost-effective replacement for minicomputers used in process control. The system has its own 14-bit blinkenlights front panel for accessing the 8008. Docs here: https://www.dropbox.com/sh/bezyixp76x2q3i4/AAAdGzzycbTIys1Ftde2BpR5a?dl=0 I'll leave the docs up for a week or so. Jack

9 years, 10 months

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Halt and Catch Fire Tonight

by COURYHOUSE＠aol.com

Halt and Catch Fire Tonight Halt and Catch Fire Tonight premiere of season showing episode 1 and 2 both! thx - Ed#

9 years, 10 months

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Repairing Tape Leader Damage in TK70 Drive

by shadoooo＠gmail.com

Hello Rob, I don't think the leader can be repaired, as the used polymer doesn't react well with glues, simply out will not be robust enough. But if you have some patience and a sharp knife, topi can cut out new leaders from black plastic layers, I used old X ray films of the bones. I did it for all of my drives (only had broken at start), and it worked. For me it was tricky to find the right shape of the original leader, but you have the damaged one... Andrea

9 years, 10 months

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DECnet for Solaris 8?

by nf6x＠nf6x.net

Was there ever DECnet support available for Solaris 8? I rather doubt it, but if it exists then I'd be interested in finding it for my Ultra 60. -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

9 years, 10 months

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Repairing Tape Leader Damage in TK70 Drive

by robert.jarratt＠ntlworld.com

I have found a tear in the "arrow head" of the leader of a TK70 drive. I do have a spare somewhere should I need it, but I was wondering if anyone has any clever ways to repair it? Thanks Rob

9 years, 10 months

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more vintage computer stuff

by jnc＠mercury.lcs.mit.edu

> From: Mouse > they require that I subject myself to the Web. > I recognize that few people share this attitude. Well, I sorta understand; the modern 'active content' mania causes me to grind my teeth, too. But the non-active Web has major benefits. E.g. I read this list via the (entirely non-active :-) archive page, so my mailbox doesn't get cluttered up with the dross. Noel

9 years, 10 months

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HP-HIL keyboards with PS/2 connectors

by COURYHOUSE＠aol.com

In a message dated 8/26/2016 8:51:16 A.M. US Mountain Standard Time, phb.hfx at gmail.com writes: On 2016-08-26 12:37 PM, Eric Christopherson wrote: > Years ago I bought two HP 9000/715s. I've barely done anything with them, > so I don't remember for sure if they even came with keyboards. That unit's > keyboards are supposed to be HP-HIL, and I know there was a breakout box to > use a PS/2 *connector* on such a keyboard; but I'm wondering about the > particulars of that. > > I have run across one HP keyboard in my stash, which has a PS/2 connector. > It only partially works on a PC -- certain keys don't register at all. What > I'd like to know is: is it certain that this is just a broken beige box PC > keyboard? The alternative I'm pondering is that it's really an HP-HIL > keyboard with a PS/2 connector that just coincidentally seems to partially > work on a PC. That's unlikely, I know, but I just want confirmation to rule > it out. > It is probably just a broken PC keyboard the communication protocols on PS/2 and HP-HIL are very different. and.... the HP HIL keyboad has a TOTALLY different connector also...

9 years, 10 months

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HP-HIL keyboards with PS/2 connectors

by echristopherson＠gmail.com

Years ago I bought two HP 9000/715s. I've barely done anything with them, so I don't remember for sure if they even came with keyboards. That unit's keyboards are supposed to be HP-HIL, and I know there was a breakout box to use a PS/2 *connector* on such a keyboard; but I'm wondering about the particulars of that. I have run across one HP keyboard in my stash, which has a PS/2 connector. It only partially works on a PC -- certain keys don't register at all. What I'd like to know is: is it certain that this is just a broken beige box PC keyboard? The alternative I'm pondering is that it's really an HP-HIL keyboard with a PS/2 connector that just coincidentally seems to partially work on a PC. That's unlikely, I know, but I just want confirmation to rule it out. -- Eric Christopherson

9 years, 10 months

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Digital Data Cartridge RLo2K DC

by mazzinia＠tin.it

http://www.ebay.de/itm/1von3-NEU-Digital-15-Data-Cartridge-RLo2K-DC-Jahr-19… seems he has 3 new boxed ( I'm not related )

9 years, 10 months

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My first 10BASE5 network segment

by jzatar2＠illinois.edu

>On 26/08/2016 06:26, Warner Losh wrote: >> 10base5 also had rules for minimum bend radius > >True, because bending the cable alters the geometry and introduces >impedance discontinuities, though (to be picky) the allowable bend >radius varies between cable manufacturers because the precise cable >construction dictates the tightest bend that wouldn't upset the >impedance. What I recall from the standard is that cables must support >a bend radius of 254mm /or less/ in order to be flexible enough for >reasonably easy installation. A sort of "maximum minimum bend radius". > >> as well as tap locations to be at the maxima of the reflection point. > >Actually it's to /avoid/ maxima and thereby to ensure things are out of >phase, minimising adverse interference effects. The node positions are >at 2.5m intervals, a distance which is chosen so that taps and >terminators are very unlikely to be exact wavelengths apart and hence >will /not/ be at maxima, so conflicting signals will be out of phase. >IIRC correctly it's deliberately not quite 1/19th of the wavelength. > >For the same reason, cable sections are supposed to be odd multiples of >the half-wavelength of the signal (23.4m, etc). > >> For early gear, failure to >> put it at a vibration node would often result in unreliable behavior, though >> I can't recall if that included collisions or not. > >-- >Pete >Pete Turnbull Yes, the whole reflection thing could get into a bit of a complex discussion involving transmission line theory, but I am an electrical engineer, so here goes: Yes, you need proper termination at either end, or else you get the wrong voltages on the line and cause 'collisions' (well, detect collisions anyway, though there aren't really any until the first reflection comes back from the cable end). And yes, you're supposed to put the nodes 2.5m apart. With only a two node network, and with a really short coax (<1m in my case here), the problem this solves is practically nonexistant. In theory, a properly terminated cable should have virtually no reflections at either end of the cable. In reality, imperfections in the cable, tolerances in your terminators, etc. can cause a small bit of reflection, but it should be mostly negligible. At each node, however, the transceiver places a small load on the coax, and some (small) amount of reflection will occur here. The reason you want the 2.5m spacing is so that you stop any nodes from being a perfect wavelength apart (23.4m minimum) and having their reflections build on each other enough to cause a problem with the signal levels and corrupt data (and trigger a collision). Also, the wavelength of ethernet signalling is 23.4m. This is a full wavelength, not a half as pete said. Ethernet is 10Mbit/second (more accurately, also 10Mbaud), which means normally that the maximum frequency of the raw data signal would actually be 5MHz, but since ethernet uses manchester encoding, there are sequences of bits which can produce a 10MHz signal, as well as sequences of bits which can produce a 5MHz signal. The minimum propagation speed of 802.3 compliant 10BASE5 coax is (IIRC) .78C (C being the speed of light, 3E8 m/s), so taking .78C/10MHz = 23.4m Regards, Joe Zatarski

9 years, 10 months

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My first 10BASE5 network segment

by jzatar2＠illinois.edu

Tuesday night, I got a small 2 node thicknet segment going between my DEC VXT2000 and my laptop. I took a quick demo video, https://youtu.be/A5T2GlAN2N4 The hardware setup is as follows: I have a twisted pair (10BASET) to AUI converter (a Lantronix LTX-C) (not to be confused with a 10BASET MAU) which is connected to (and driving) a Cabletron coax MAU with 10BASE5 vampire tap. This is connected to a small piece of 10BASE5 coax, which is terminated with a 47 ohm resistor pushed into each end. This coax runs over to an identical MAU with vampire tap, and an AUI cable connects it to my DEC VXT2000. Anyway, I hope to demo a larger 10BASE5 network at VCF MW, but I need outside help since I only have two AUI capable devices (the LTX-C and my VXT2000). So if you're going to be at VCF MW, and you've got some gear with AUI on it, bring it along and I can hook you up. I have about 50m of cable I think, and plenty of MAUs, but I'm short on AUI cables with both ends on it, so bring along any you have if you'd like to connect. Regards, Joe Zatarski

9 years, 10 months

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Million-dollar vintage computer

by COURYHOUSE＠aol.com

I can not wait to get back to the back of some of the rooms I have not been in for 20 to 30 years where I would stash away anything that looked like a single board computer... who knows... there may be gold in them thar stacks! #Ed In a message dated 8/25/2016 4:10:31 P.M. Pacific Daylight Time, billdegnan at gmail.com writes: On Thu, Aug 25, 2016 at 6:57 PM, Cameron Kaiser <spectre at floodgap.com> wrote: > > > Over on the Vcfed forum Evan reports: > > > The pre-production Apple 1 sold via CharityBuzz and displayed at VCF > > > West closed today at $815,000. > > > > > > So, which is it? > > > > I would be curious to know the weight of the celebration Apple I, to see what it's dollar per gram ratio is. Help put things in perspective. Bill

9 years, 10 months

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Million-dollar vintage computer

by COURYHOUSE＠aol.com

In a message dated 8/25/2016 4:10:31 P.M. Pacific Daylight Time, billdegnan at gmail.com writes: On Thu, Aug 25, 2016 at 6:57 PM, Cameron Kaiser <spectre at floodgap.com> wrote: > > > Over on the Vcfed forum Evan reports: > > > The pre-production Apple 1 sold via CharityBuzz and displayed at VCF > > > West closed today at $815,000. > > > > > > So, which is it? > > > > I would be curious to know the weight of the celebration Apple I, to see what it's dollar per gram ratio is. Help put things in perspective. Bill

9 years, 10 months

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MicroVAX II Console Garbling Characters

by robert.jarratt＠ntlworld.com

I have a MicroVAX II which has started garbling and losing characters output to the console. It had seemed that re-seating the processor board would fix it, but that no longer seems to be the case. I was just wondering if anyone else has ever come across this failure mode? Regards Rob

9 years, 10 months

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Million-dollar vintage computer

by COURYHOUSE＠aol.com

so, what was the vcf's take? In a message dated 8/25/2016 12:49:29 P.M. US Mountain Standard Time, ian.finder at gmail.com writes: Wow, how extraordinary a price for such a boring (in terms of design if not impact), well-understood, easy-to-replicate computer. You can be sure it wasn't a vintage computer enthusiast as much as a business enthusiast who got it... :) Sorry I'm such a hater, I've just never understood the Apple 1 thing very much. On Thu, Aug 25, 2016 at 12:18 PM, Evan Koblentz <cctalk at snarc.net> wrote: > The pre-production Apple 1 auctioned via CharityBuzz and displayed at VCF > West closed just now for $1,210,000. Blows away the old record of > $900-something. Amazing!!! > -- Ian Finder (206) 395-MIPS ian.finder at gmail.com

9 years, 10 months

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