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

Vintage Computer meetings in Switzerland

by vermeulen.oscar＠gmail.com

Earl, >> As a small group of Vintage Computer enthusiasts we have come together to >> start a Vintage Computer & Homebrewing group here in Switzerland. >> - Wednesday Jan 15th, 20:00 - Homebrewing & the N8VEM Project > Sounds great! Do you mind if we mention this on the Retro Computing > Roundtable podcast? (rcrpodcast.com) Thanks! Yes, please. We need some publicity for this, er, niche activity I think. Cheers, Oscar.

12 years, 6 months

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Vintage Computer meetings in Switzerland

by vermeulen.oscar＠gmail.com

Earl, >>* As a small group of Vintage Computer enthusiasts we have come together to *>>* start a Vintage Computer & Homebrewing group here in Switzerland. *>>* - Wednesday Jan 15th, 20:00 - Homebrewing & the N8VEM Project * > Sounds great! Do you mind if we mention this on the> Retro Computing Roundtable podcast? (rcrpodcast.com) Thanks

12 years, 6 months

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lookin for ibm computer stuff

by rmx44＠aim.com

looking for any ibm ps/2 or ibm laptops or keyboards or anything made by ibm. would like to have a few ibm pcs around.

12 years, 6 months

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DEC "E" series boards

by useddec＠gmail.com

Here is a list of E series boards I found. There are probably more around here waiting to to be uncovered. 2- E2043-BV 4- E2045-AA 1- E2046-AL 1- E2054-AA 2- E2062-DA 2- MS7CCFF, FP Shipping is from 61853. Please contact me off list if you have any interest. Thanks, Paul

12 years, 6 months

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TECO macro search leads to Alice's PDP-10

by legalize＠xmission.com

Stumbled across this recently: <http://www.hactrn.net/sra/alice/> Oddly enough, I found it while searching for an archive of TECO macros to see if anyone had coded Conway's Game of Life in TECO. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://ComputerGraphicsMuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://LegalizeAdulthood.wordpress.com>

12 years, 6 months

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Docs for "Sound Sight" bubble memory for TRS-80 Model 100?

by derschjo＠gmail.com

Snagged this (just too cool to pass up) a few days ago, it's a rather large expansion unit for the TRS-80 Model 100 (basically attaches to the bottom of the unit, adding an extra 1.5" thickness) that contains 128K of bubble memory (and takes an extra 7 AAs for power...). The only markings on it are a label on the front that says "Sound Sight." I have the ROM (which I'll attempt to dump once I can build an adapter for it) but no instructions. I've found a tiny bit of information on it ("CALL 63012" is a magic incantation to invoke the ROM) but nothing else. Anyone have any info on this? Thanks as always, Josh

12 years, 6 months

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Lobo Max-80 Question

by snhirsch＠gmail.com

Does anyone know exactly what was in the Lobo branded "SASI" external hard drive? I've managed to convince my Max-80 to talk with a 10MB MFM drive behind an Adaptec ACB-4000 bridge controller. It formats and verifies without a complaint, accepts bad sector information and creates a working CP/M volume. But, for some reason I cannot get it to boot from the hard disk. It won't be the end of the world if I have to cold-start from a floppy, but my curiousity is getting the better of me. The utility that writes the boot sectors works fine - there's a brief flicker of drive activity and no error messages. When I set the DIP switches to cold-boot the hard disk, I can see the busy LED on the bridge board light up solid and the machine freezes. Under normal I/O, the drive activity LED illuminates at the same time as the one on the ACB-4000, but at boot I never see the drive itself respond. I'm assuming that there's some incompatibility between the ACB-4000 and the boot PROM. It would help to know what it's expecting to see. I've been digging through the boot ROM sources, but nothing jumps out so far. FWIW, I've tried an Adaptec ACB-5500 controller (same results), a Xebec 1410 (won't format or verify, but can be written/read) and a Xebec 1410A (I/O errors). Steve --

12 years, 6 months

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Display Writer reader needed...

by geneb＠deltasoft.com

This was sent to me and I don't have the equipment to help the guy. Please contact him directly. tnx. g. ---------- Forwarded message ---------- Date: Wed, 18 Dec 2013 02:27:22 -0800 (PST) From: John Kerwin <thejohnkerwinshow at yahoo.com> To: "geneb at deltasoft.com" <geneb at deltasoft.com> Subject: Gene: Transfer Hello Gene, Question...can you transfer some old college files from an IBM Display Writer floppy disk?? If not, can you refer me to someone. My mother recently passed and I had 'letters to home' that were stored on this old, large floppy disc from the Display Writer. Much appreciated, John

12 years, 6 months

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Vintage Computer meetings in Switzerland

by vermeulen.oscar＠gmail.com

Hi all, As a small group of Vintage Computer enthusiasts we have come together to start a Vintage Computer & Homebrewing group here in Switzerland. We intend to meet once a month with a presentation/demonstration of a specific topic, and have a general get-together afterwards. The inaugural meeting is on January 15th, and the topic will be Homebrewing and the N8VEM project, including an overview of vintage CP/M software that runs on it. Anyone who's interested is very welcome. We meet in the Hackspace Lucerne ( laborluzern.blogspot.ch) and the calendar for the next three months will be -- - Wednesday Jan 15th, 20:00 - Homebrewing & the N8VEM Project - Wednesday Feb 12th, 20:00 - Apple-1, Kim-1 & design of modern replica's - Wednesday Mar 12th, 20:00 - Hacking the Dragon 6809 computer More details are on our web site http://vintagebytes.ch/ . We look forward to meeting up with any of you living in the area! Regards, Oscar

12 years, 6 months

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Single keycaps needed for 2 keyboards

by b4＠gewt.net

This is going to sound a little bizarre... I need a Sun type 5 escape key keycap and an Apple IIe 9 key. Anyone happen to have both or just one? Much appreciated! -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 6 months

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wanted: Apple Extended Keyboard, M0115, working or not

by spacewar＠gmail.com

I'm looking for an Applle Extended Keyboard, for ADB, model M0115 only. It doesn't have to be in good cosmetic condition, or even working. Missing keycaps OK. I just want it cheap. Thanks! Eric

12 years, 6 months

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Looking for media and air filter for Diablo 31

by jdr_use＠bluewin.ch

Currently starting to revive a Diablo 31, and looking for a few media and an usable air filter for this. Europe preferred, but beggars cant be choosers of course,... Jos

12 years, 6 months

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8" Drive Enclosures wanted

by snhirsch＠gmail.com

In a spontaneous burst of foolishness, I gave away all my extra 8" drive enclosures the other year. I anyone has one or two with working power supplies they are willing to part with, please drop me a note? Many thanks. I can do cash or trade. Steve --

12 years, 6 months

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Another Mac Plus on the web

by mtapley＠swri.edu

All, I think this isn?t ground-breaking, but it?s nice to see. Mac Plus websurfing, with some semi-modern hardware hacking. http://www.keacher.com/1216/how-i-introduced-a-27-year-old-computer-to-the-… I would recommend Kermit for the early file transfers over serial, or I have to second the Localtalk/ethernet converter idea as well (mine is Farallon); that might be another good route to transfer the initial set of software. Not sure why one couldn?t web surf over the Farallon box as well, but I have not tried that. Another set of helpful information (with which y?all may be familiar already) is at: http://www.jagshouse.com/#Jag's%20Classic%20Mac%20Site claims 20,000 downloads, which is why I say ?Another? Mac Plus etc. - Mark

12 years, 6 months

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Looking for media and air filter for Diablo 31

by jdr_use＠bluewin.ch

On 12/15/2013 07:45 PM, Al Kossow wrote: In the unlikely case that you're trying to restore an Alto, I've not had much success using old RK05 packs on them. Haven't tried bulk-erasing a platter yet to see if that would help. I wish...... No, it is a Diablo31 disguised as a Philips X1175. The one pack it has contains a Basic which i would like to recover. I will have too look for some other packs But a long term goal of recreation an Alto is tempting... Jos

12 years, 6 months

2
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PDP-11/23+ serial ports

by bobvines00＠gmail.com

> Date: Sun, 15 Dec 2013 15:08:15 -0500 > From: John Wilson <wilson at dbit.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: PDP-11/23+ serial ports > > On Sun, Dec 15, 2013 at 08:49:39AM -0800, Al Kossow wrote: >>>I did a tiny (practically free at OSH Park) PCB a while ago that adapts >>>10-pin ribbon cable to a DB25P (wired as DTE). >> >>Was anyone going to have any of these made up? >>John, do you have any right now? > > I have a couple left, which you're welcome to. And I'd be up for ordering > a bunch more just to have around, so let me know if you want to add to that. > > John Wilson > D Bit > John, How much will you need for each of these in case others want one (or two)? Thanks, Bob

12 years, 6 months

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My TRS-80 Model 1 on Youtube (redone and in HD)

by terry＠webweavers.co.nz

It's longer than I would like but you can't short-change a classic. Here is a remake of my TRS-80 Model 1 video, now in HD. http://youtu.be/wgKWV8C3e7M

12 years, 6 months

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Intel MDS 225 system being auctioned by Chicago Transit Authority

by jonas＠otter.se

On Sat, 14 Dec 2013 22:02:48 +0000 (GMT), ard at p850ug1.demon.co.uk (Tony Duell) wrote: > To bad the parallel port has also gone the way of the serial port. > Indeed. IIRC those USB to Centroincs printer 'cables' don;t allow you to > toggle individual port lines like that. They don't, at least not unless you write your own driver, and even then quite possibly not. I investigated these when I wanted to get my PROM programmer working. They come with Windows printer drivers and don't support ECP/EPP, so for any purpose except interfacing to a dumb parallel printer they are useless. > That's why I said an old-ish PC. Meaning one with a parallel port, not > (jsut) USB. > I got an old PC from a thrift shop for just about nothing. Plug in a network card and it connects to my local network and I'm in business.

12 years, 6 months

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PDP-11/23+ serial ports

by b4＠gewt.net

Evening, Whilst I'm putting together a mouser order, I might as well order EVERYTING i'll need... With the PDP-11/23+, as I won't have the cabinet kit for it, does the 9-pin connector break out to standard RS-232 with baud rate configured via switchblocks? There's two of 'em, which one is primary? I'm assuming the pinout is documented in a manual somewhere as well, correct? -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 6 months

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Telesensory/Speech Plus PR2020

by b4＠gewt.net

Hello, Anyone know anything about this or have any manuals? I plug in to its RS-232C port...and I get nothing. No input, no output. I would love to figure this speech synthesis thing out...but I don't have enough starter info! Any help appreciated!

12 years, 6 months

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VAX KA52 or KA50

by shadoooo＠gmail.com

Hello, I have a VAX 400-100A with P_CACHE giving many errors. I suspect that a motherboard replacement would be necessary. Anybody has one to sell (also faster models like KA53 and KA54 could be good)? Thanks Andrea

12 years, 6 months

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[N8VEM-S100:1808] S-100 68K CPU board V3

by LYNCHAJ＠YAHOO.COM

Yay! Woo Hoo! Great news! We have S-100 68K CPU running! Once this project is working maybe we could take another look at the 68360 P1 and/or 68040 SBC? This is really great news! Please post pictures and notes on the wiki! Let's get the word out! Thanks and have a nice day! You've already made mine! w00t! Andrew Lynch PS, this project has been in work for 2 years+ so I am very happy to see it working. From: n8vem-s100 at googlegroups.com [mailto:n8vem-s100 at googlegroups.com] On Behalf Of yoda Sent: Monday, August 12, 2013 10:40 PM To: n8vem-s100 at googlegroups.com Cc: monahan at vitasoft.org Subject: Re: [N8VEM-S100:1808] S-100 68K CPU board V3 Hi John Thought I would give an update - found the problem with memory - it turns out pin 1 of U2 on the board had a cold solder joint - guess it finally gave out. Reflowed the solder - the ground plane is a pretty big heat sink around pin 1 and can easily get a cold solder joint. Any ways after repairing that and playing with jumpers and switch settings I have 1 Meg of memory working with the S100-68K-V3. I also have the oscillator at 16MHz so the CPU is running at 8MHz and is a buss master. I am using the short S100 mother board from the group so it may have better noise immunity than the 22 slot mother board like you are using. I will do some more testing and want to boost the memory to at least 2 Meg for some experiments. I will get started next on the new monitor and getting data to load from the IDE CF card. Looks like I am on my way to getting CP/M 68K ported. I have a little clean up to do in a couple of areas (upgrade to latest compiler code, etc). Dave

12 years, 6 months

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FA: Intel MDS720 system

by feldman.r＠comcast.net

The Chicago Transit Authority is auctioning off a number of items, including an Intel MDS 720 system. The auction is at http://www.ricklevin.com/auctions/Online-Auctions.aspx . Item number is 120. Current bid is $75. The system looks fairly complete, with several CDC disk packs and drive. I think it is for local pick up only. Auction ends in 5 days. ? Bob

12 years, 6 months

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HP-150 Software

by robert.jarratt＠ntlworld.com

I have my HP-150 cleaned up now. I also have a 9121 with two single-sided floppy disk drives. I have cleaned them up, unblocking the eject mechanisms gummed up with dry grease. Now I want to get the system running. I have found the disk images on the HP Museum site. They are Teledisk images. I had not come across this program before, so I set up a DOS machine and tried using Teledisk to write to a double-sided double-density disk I have. It seemed to work, getting to the last track and then complained about the disk drive not being ready. I tried the disk in the HP-150 in any case and it booted up ok, although I think one of the files may not have been right, so perhaps the disk is not fully written. I wanted to convert the TD0 files to IMD format (Dave Dunfield's ImageDisk program) as that is more legal than using Teledisk, but ImageDisk seems to struggle reading the floppy disks that I managed to create with Teledisk. Has anyone converted these TD0 images to IMD already? Regards Rob

12 years, 6 months

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Thinning out my collection

by nwfilardo＠gmail.com

Hallo, I'm clearing out some duplicates and mismatched material from the JHU ACM's collection of old stuff that I try to call a "museum". All of this is, at the moment, located in Baltimore, MD; local pickup can be easily arranged. Bringing things to Pittsburgh is also an option, though you?ll have to tolerate some latency (I?m infrequently at CMU, so?). The current list of materials is available at https://docs.google.com/spreadsheet/ccc?key=0AqVSp8UyoZ_bdDFGXy1JTWlfZ2FLMX… I?ve tried to be reasonable about initial asking prices, mostly going by what?s up on eBay right now. If I?ve wildly missed the mark, please let me know. Speaking of eBay, these are going up there eventually, but I thought I?d offer the mailing list first. Dead Trees and Media: Most of the dead-tree part is comparatively un-interesting or common, and so I would be happy to part with it for the cost of shipping and an entirely optional donation (can you spare $1?) towards the museum's efforts. Some appear not to be in any of the archives I know of; I'll cover shipping them to you for a promise that they end up there, if that's the case. :) Actual "Classic" Computers: Sun Enterprise E450, 3x Sun Ultra 5, Sun SparcStation 5, Sun SparcStation 4, HP 712/60 Other Bits of Technology: Sun UltraSCSI external enclosure for half-height disk drive (sparcstation decor) Sun SCSI external enclosure for full-height disk drive (IPC/IPX decor) Two reels tape, presumed identical; one labeled ?AMPEX 874 CATT 1600 CPI - 3200 FCI? Myricom Myrinet Fiber Switch (M3-CLOS-ENCL) w/ cards. Numerous MyriNET PCI-X Fiber cards. There's sure to be more stuff over the coming year, too, as just how much space the department takes away from us in our upcoming move becomes clearer. :'( Thanks! --nwf;

12 years, 6 months

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old Sun memory

by sales＠elecplus.com

I have 2 boxes of old Sun memory, 200 pin and 232 pin. I do not have a way to test these, but they are in good shape. Any takers out there? PN include 501-3136,501-4743, 501-2480 for the 200 pin and 501-5401, 501-5030 for the 232 pin. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6902 - Release Date: 12/08/13

12 years, 6 months

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FFS: Zilog Z182 chips leftovers

by dgriffi＠cs.csubak.edu

I have five Zilog Z182 microprocessors left over from the latest run of P112 boards. If you bought a naked board without anything mounted from me or Dave Brooks, and you haven't gotten around to getting a microprocessor I'm offering you one free-for-shipping. -- David Griffith dgriffi at cs.csubak.edu

12 years, 6 months

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ACE Discovery Multiprocessor System (B. Degnan)

by new_castle_j＠yahoo.com

________________________________ Here's one website that talks about the ACE Discovery computer. ?Looks like the Discovery 1600 came before the Discovery 500. ? http://classictech.wordpress.com/tag/action-computer-enterprise/ The front card in the system, the CPZ 4800 was made by Intercontinental Micro Systems, it would be considered the master processor and the other's slave processors. ?The manual for the 4800 can be found here:?http://www.s100computers.com/Hardware%20Folder/IMS/CPZ4800/CPZ%204800…

12 years, 6 months

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my pdp11/53 and pdp11/73

by Mark＠Misty.com

Hi, Ever since I first saw them at the University where I worked in the late 80's and early 90's, I wished I had one to experiment with myself, but they have neither gotten cheap nor plentiful over the years. My first computers ran CP/M, SCO Unix, then SunOS on a SPARC-4/110. So my 11/53 just arrived, and my 11/73 is on it's way, both in BA23 chassis. Inventory of the 11/53 is: KDJ11-D/S CPU Dataram 4093 with 2MB RAM RQDX3 controller The power supply checks good, the cabinet is remarkably clean inside, and I get the countdown from the console port, then it tries to boot >from a TEAC drive I had that matched the smashed one that came with the system. No network card in this one, but the 11/73 will have a Delqa with it. I'm pleased there are still so many links that haven't expired to documentation, and nice web pages and youtube videos by others like myself who have resurrected these systems. I wish I hadn't thrown out all my MFM drives, years ago when I moved, since I don't think I can do much more until the 11/73 with a hard drive shows up, and that machine will have the Delqa card too. I have some questions that I have either not been able to answer, or for which I've found confusing answers. - What are the rules for cards & slots in a BA23? - If I wanted to get bsd2.11 running on either of these, do I need an additional board with some kind of RTC, or some other hardware than I already have? (I see comments about an MXV11-B, at least for 11/23 users?) - I can't find a Dataram 4093 manual online. I might never need it, but I'd like documentation for all the cards in my system. - Is there some kind of diagnostics I can perhaps use PUTR to copy onto a bootable floppy, that would do further hardware tests? I'm not even clear if the ROM power-on memory test is thorough. I've found useful references from hobyists working with similar hardware: http://home.windstream.net/engdahl/pdp-11.htm http://www.retrocomputingtasmania.com/members/nw-retrocomputingtasmania-com… http://www.youtube.com/watch?v=BGTX13MnRLQ (and the followup videos) http://lordkalvan.typepad.com/blog/2009/11/nablopomo-dec-micro-pdp-1173.html Mark -- Mark G. Thomas (Mark at Misty.com)

12 years, 6 months

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ACE Discovery Multiprocessor System

by kylevowen＠gmail.com

Does anyone have any info on this particular system? It looks like I've got two different generations of CPU cards for it, which I was told would not be compatible with each other. My digging online has turned up very little on ACE in general. The sytem: http://i.imgur.com/LXMKKwx.jpg Close-up of cards: http://i.imgur.com/oEeTscu.jpg I can snap some better pictures later if needed. Thanks, Kyle W4GNU

12 years, 6 months

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Olivetti M40 information?

by ccmpcpg＠yahoo.de

Hi, I'm currently trying to start one of my M40s for the first time since over 5 years, and it doesn't boot. I had the 8" floppy drive removed in order to image the floppies on a PC. Now I've put it back into the M40. But it doesn't boot anymore, it just says 3 numbers: "4 5 8". I assume these are indicators of failed startup tests, but I cannot find information about what these numbers actually mean. Does anyone here have some documentation about the M40, most preferably hardware documentation or a service manual? Any help would be appreciated. regards, chris

12 years, 6 months

1
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PDP-8A Console weirdness

by cramcram＠gmail.com

I've got a PDP-8A w/32K of core memory that I'm bringing up. For quite a while I couldn't examine/deposit to anything but field 0 using the programmers console. Pressing "000X" LXA never changed the field digit. But by accident I tried doing an LXA with "3333" as the operand and it started using field 3!. A little experimentation revealed that LXA was using the tens (eights?) digit to set the address. Now this PDP-8A is a 620 which means it really has the PDP-8E board set. From reading the 8E maint manual when a load field is done on that machine bits 6-8 of the switch register set the instruction field and 9-11 set the data field. But the 8A user manual says that entering "0003" LXA should work. So it would seem that the 8A programmers console or the M8316 module needs to replicate the lowest digit of the value entered into the tens digit to work correctly. I can't see where that is done from looking at the description or schematic. Can anyone with an 8A programmers console verfiy that just entering "000X" LXA sets the address to XYYYY (where YYYY was set with the LA button)? Thanks, Marc

12 years, 6 months

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My Commodore PC-5 on Youtube

by terry＠webweavers.co.nz

About as low-entry as a low-entry IBM-PC compatible of the mid 80s could get. Still, it's a stylish box. http://youtu.be/DCk7TQtZX0M

12 years, 6 months

1
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S-100 buffered prototyping board PCBs ordered!

by LYNCHAJ＠YAHOO.COM

Hi! Thanks everyone! There are enough pre-orders to warrant a PCB manufacturing order so I made one today for the S-100 buffered prototyping board PCBs. They should be here around 30 Dec 2013 or so. I will keep you posted on progress. Of course the pre-ordered PCBs will go out first but there should be plenty left over for any late comers. Thanks and have a nice day! Andrew Lynch

12 years, 6 months

1
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HP-150 Touchscreen

by robert.jarratt＠ntlworld.com

I have just collected one of these machines. I don't know a lot about them. It seems they use a customized version of MS-DOS. Does anyone have a copy? I have inspected the PSU in the base unit and there are no obviously swollen capacitors, but it is 30 years old. Not sure if I should try applying power. Regards Rob

12 years, 6 months

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ACE Discovery Multiprocessor System

by billdeg＠degnanco.com

> > Does anyone have any info on this particular system? It looks like I've got > > two different generations of CPU cards for it, which I was told would not > > be compatible with each other. My digging online has turned up very little > > on ACE in general. > > > > The sytem: > > http://i.imgur.com/LXMKKwx.jpg > > > > Close-up of cards: > > http://i.imgur.com/oEeTscu.jpg > > > > > Pictures of the cards would be helpful. The first card seems to have a ROM > tabled Turbo DOS CPZ 4 8000, floppy only. The card has both a 40 pin > connector and a 26 pin connector (5 1/4 & 8 inch maybe). One of the 16 pin > connectors is labeled plotter and could be a serial port. > I briefly had an early version. http://vintagecomputer.net/ACE/ http://vintagecomputer.net/browse_thread.cfm?id=230 There are a few ads in Byte in the 80's for these. Bill

12 years, 6 months

1
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Passing on IEEE Journals

by robert.jarratt＠ntlworld.com

I have a ton of IEEE Computer and IEEE Software journals at home. I don't really have the space to keep them. Does anyone want them? They are located in Manchester, UK. Regards Rob

12 years, 6 months

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Baltimore VC Workshop / Get Together Feb 16th 2014

by billdeg＠degnanco.com

ATTENTION BALTIMORE (USA) VINTAGE COMPUTER HOBBYISTS! Come meet with other computer history buffs for an all day event. Bring your vintage computer project work and collaborate with others' restoration projects. We will also explore the vast collection of historical computers and electronics on site at System Source. This is the first event of its kind in the Baltimore area. This is a great opportunity to meet with other hobbyists and to explore in person a number of rare historical minicomputers and microcomputers. SEE IN PERSON Minicomputers from manufacturers UNIVAC / DIGITAL / IBM / WANG / DATA GENERAL Microcomputers from manufacturers MITS / IMSAI / APPLE / COMMODORE / ATARI Analog Computers - EC-1 / Paperclip computer / Comdyna / Minivac Rare adding machines and calculators, storage devices, computer toys, Linotype, terminals, more! WHERE: System Source 338 Clubhouse Rd Hunt Valley MD 21031 410.771.5544 WHEN: Sunday February 16, 2014 11 AM until 7PM (time subject to change) CONTACT: Bob (V.P System Source - [syssrc,com]) Bill (vintagecomputer.net/contact.cfm) RSVP for updates and social media news today! (to Bill, via vintagecomputer.net/contact.cfm) Computer Museum: http://www.syssrc.com/html/museum/ More Photos: http://vintagecomputer.net/system_source/

12 years, 6 months

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Needed: SDI disk

by b4＠gewt.net

Afternoon all, I need an SDI disk to test my MVII...largely to see why my KDA50 always shows up as "offline" to VMS despite correct CSR and why I can NOT boot VMS over the network...I always get a machine check or a DBL ERROR. Small enough to hold 4.3BSD-Quasijarus should suffice for testing purposes. If you're not willing to part with one for <$75 (price of an RA72 on ebay) I can return it or work out a trade. Thanks! I want to get all the tests on this KA630 done. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 6 months

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Any Interest in a 1985 Wang Office Assitant

by crankeye＠gmail.com

I have 1985 Wang Office Assistant and I'm looking to see if anyone would be interested in the working unit and accessories. The unit works great and the printer still prints. I have: -Main Unit -Monitor -Keyboard -Daisy Wheel Printer w/ an extra Ink Ribbon -Manuals -Software -Paper Trays I'm based out of Phoenix, Arizona and would be willing to ship to the US only. Though it may be expensive to ship considering the printer alone is a good 20-30 lbs. I can provide images of everything if there is any interest. Thanks, Neal

12 years, 6 months

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VCF East 9.1 exhibit registration

by evan＠snarc.net

Ladies and Gents, Exhibit registration for the Vintage Computer Festival East "9.1" is now open: http://www.vintage.org/2014/east/exhibit.php. The show is April 4-5-6 at the InfoAge Science Center, in Wall, New Jersey. However the exhibits are open only on April 5-6. (Friday is technical classes.) This will be the largest VCF East ever, so register your exhibits early!!

12 years, 6 months

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S-100 bus extender and S-100 buffered prototyping board PCBs

by LYNCHAJ＠YAHOO.COM

I still have six (6) of the S-100 bus extender boards left if you are looking for them. http://s100computers.com/My%20System%20Pages/Extender%20Board/Extender%20Boa rd.htm The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM with the subject "S-100 bus extender" and I will send your board(s). Thanks and have a nice day! Andrew Lynch PS, I am also accepting pre-orders for the S-100 buffered prototyping boards and will be making a manufacturing order soon. All the details are the same as the S-100 bus extender except send a message with "S-100 buffered prototyping board" as the subject.

12 years, 6 months

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XT-IDE V2 assembled and verified working

by LYNCHAJ＠YAHOO.COM

Ebay item 271340562032 Thanks and have a nice day! Andrew Lynch

12 years, 6 months

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[Fwd: Restoration of a PDP-8a]

by anders＠abc80.net

Hi, I have started restoration of a PDP-8a model 8A420-CN. I doesn't have any schematics for this machine and I have searched internet for sources without any luck. The sets on http://bitsavers.trailing-edge.com/pdf/dec/pdp8/pdp8a does not include my version. My machine came with 16K*12bits core memory, 20 slot backplane and only the "Limited function board" frontpanel (don't now if this machine ever had the "Programmer's console"). This is how my "Power distribution board" looks like: http://www.abc80.net/docs/pdp8/pdp8a/DSC_2118.JPG Some questions: 1. Is there anybody that could help me with schematics on this machine? Scans are preferred, but I can pay for paper prints. I'm especially looking for a diagram that matches the "power distribution board" that I got. 2. If I plug in the machine with only the regulator boards (2xG8018) and the limited function board in it, should the lights and fans come to life? 3. I suspect that my model shouldn't have "Power distribution board control", G8019 since my "Power distribution board" misses the connector for this board. Can that be correct? Any help is appreciated. PPD-8a is new to me, but I have some knowledge in the PDP-8 architecture since I restored a PDP-8/L that was in really bad shape. /Anders

12 years, 6 months

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S-100 bus extender PCBs are here

by LYNCHAJ＠YAHOO.COM

Hi! Good news! The S-100 bus extender PCBs have arrived! Here is your chance to build your own S-100 bus extender! The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM with the subject "S-100 bus extender" and I will send your board(s). There are eight (8) PCBs left. Thanks and have a nice day! Andrew Lynch

12 years, 7 months

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Fix'n VT220s

by chrise＠pobox.com

I recently "saved" a small pile of VT220 and VT100 terminals from a barn in western WI. They were grubby and have various issues but I am enjoying cleaning them up and making a few good ones from some bad ones. One of the VT220 is a very new vintage unit. Circa-1987, with some components with date codes 1990. It has a totally different logic board than earlier models I've worked on-- this one having a large PLCC package in the center of the board which I assume is a custom device integrating the video controller and much of the support logic since there are considerably fewer parts on this board than the older ones. Still an 8031 CPU though. This unit also has a totally different video monitor circuit than the older ones and my problem lies somewhere on that board-- I am getting a very dim image even though the CRT itself appears to be in very good shape with no burn-in and otherwise crisp display. I think I've got a high-voltage problem but without schematics to match this board, it's kind of a crap shoot to start debugging. So, wondering if anyone has newer schematics or technical reference for the VT220 than we find out on bitsavers? The bitsavers docs are circa- 1983 so I am looking for something 1987 or later when it appears they did a considerable redesign of the guts of this terminal. Chris -- Chris Elmquist

12 years, 7 months

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FREE: Commodore C64, C128, Amiga systems available in Orange County, CA

by tosteve＠yahoo.com

I've come across a small pile of old Commodore stuff. I don't really want to ship any of it at this time, as I don't have any boxes or other packing material, and it takes lots of time and effort. But I will eventually if I have to, or if you throw enough money at me. Operational status currently unknown. I will power-up the Amigas on Tuesday, Pick-up or local delivery (92656). Not for resale: 1. C64, C128 2. Amiga 500, 1000, 2000, 3000. The 500, 2000, 3000 have hard drives, but no other expansion cards. 3. Miscellaneous floppy drives, Commodore monitors. 4. No C64/128 software, but over 100 Amiga floppy disks.

12 years, 7 months

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Plugging (ohh shameless me): HP 85B on ebay

by hp-fix＠xs4all.nl

I've put a HP-85B with a QIC40 modified tape drive on ebay. It starts with 1,- so everybody has the a fair chance. If you win tell me you're a list member and I'll put some extra's in .. Item is placed in the Netherlands, item number 370957485834. -Rik

12 years, 7 months

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Free: Pinnacle Systems Prizm Video Workstations

by pye＠mactec.com.au

I saved two of these Pinnacle Prizm Video Workstations (they are a special FX and 3D add-on for the Pinnacle workstation from around 1994) from being scrapped a while back, basically to see what they were. I haven't had any luck finding the matching video workstation locally, and they're big and heavy, so I want to get rid of them. Free pickup in Brisbane, Australia. If there's no takers for the complete units I'm happy to ship parts/boards for cost, but keep in mind these are PAL machines not NTSC. Chris..

12 years, 7 months

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Looking for: Schematic / Parts list for Thinker Toys Discus/2D drive power supply board

by derschjo＠gmail.com

Hi all -- I'm working on restoring a pair of Thinker Toys Discus/2D disk drives (8" drive enclosure with power supply, a-la: http://collections.museumca.org/?q=collection-item/20043152). I have the complete manuals for the controller, but I can't find anything on the drive enclosure itself; mine have suffered a fair amount of corrosion and rust (fortunately limited to the power supplies, the drives themselves are fine) and I'm trying to identify the voltage regulators the power supply uses but they're so far gone the markings are worn away. Anyone have a schematic for this? Bitsavers has the schematic for the original Discus, but not the /2D. Thanks in advance, - Josh

12 years, 7 months

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test-drb