- 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 months

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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, 8 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, 8 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, 8 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, 8 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, 8 months

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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, 8 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, 8 months

1
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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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 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, 8 months

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BSD 4.3 on a uVAXII

by jon＠jonworld.com

All, I've been wrestling to get BSD 4.3 Quasijarus installed on my uVAX2. This is what I'm doing... 1) Booting over the network to NetSBD over NetRoot 2) Used NetBSD to partition and format the disks 3) Used the 'restore' command to extract the 'dump''d root 4) Used tar to extract the proper usr (and other) directories 5) Edited the local disk's fstab ... where I'm getting hung up is bootblocks. What boot blocks do I write to my drive and how? I have an Emulex controller (MSCP emulator) with a SCSI disk attached. The disk shows up as SCSI ID 1, and dua1 from the prom. It shows up as /dev/ra0 in NetBSD. I can mount/unmount the drive, etc. I tried the NetBSD 'installboot' with 'raboot' as the bootblock and it doesn't work with the output below... >>> b dua1 2..1..0.. ?06 HLT INST PC = 00100529 Not sure what's going on. Any ideas? -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 8 months

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My Panasonic JD-850M on YouTube

by terry＠webweavers.co.nz

I was so impressed by my recently acquired 1982 CP/M-based Panasonic JD-850M business computer, I had to add it to my YouTube video collection. http://youtu.be/9GUDsYdF23A Terry (Tez)

12 years, 8 months

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CRT cataract removal

by lists＠loomcom.com

Hi everyone, I just successfully repaired the CRT on my ADM-3a, which was suffering very badly from "CRT cataracts". Here's a before and after picture: http://www.loomcom.com/junk/adm3a_lens_removal.jpg On the left, you can see the CRT removed from the ADM-3a and supported in a cardboard box for repair. I've already cut through and partially removed the sealing tape that went around the edge of the CRT and the lens. The cataracts are clearly visible, they were extremely bad. The adhesive between the CRT and the lens had broken down significantly and partially liquified, leaking through the sealing tape. On the right, you can see the CRT after removing the lens and peeling up the sheet of adhesive under it with the aid of a razor blade. I used a heat gun in concentric circles over the face of the CRT, the technique shown in this series of videos on YouTube (not mine): https://www.youtube.com/watch?v=5l1EoMmmOcQ I just wanted to confirm that this technique works well. I have not yet finished cleaning the lens and CRT, but after that's done I will apply double-sided tape, re-attach the lens, and seal it with packing tape, as shown in the videos. DISCLAIMER: If you do this, you are doing it at your own risk. I wore safety glasses, gloves, and a long-sleeve shirt. There is significant risk of CRT implosion. -Seth

12 years, 8 months

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installing 2.11BSD on a pdp11/53

by ak6dn＠mindspring.com

The 'dd' usage I provided has nothing to do with tape images, only copying raw disk images. Personally after a bit of actual usage of the 11/44 to do builds and patching in situ, I gave up. Just too slow. So I went back to an emulated 11/44 in SIMH and did all the patching and sysgens there. Is is at least 10X-20X faster doing all the work on a PC and copying the completed disk images over to the 11/44 at the end. -----Original Message----- >From: Mark G Thomas <Mark at misty.com> >Sent: Nov 30, 2013 3:01 PM >To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> >Subject: Re: installing 2.11BSD on a pdp11/53 > >Hi, > >> Am 30.11.13 18:23, schrieb Mark G Thomas: >> >I followed the 2.11BSD setup.ps and HOWTO file instructions to create >> >a tape with dd, using a Sun Solaris SPARC server connected to the DLT8000. > >On Sat, Nov 30, 2013 at 08:04:12PM +0100, Jochen Kunz wrote: >> You need to use maketape.c to get the right block structure. >> Jochen > >I used maketape.c instead of the dd instructions, and that worked perfectly. > >Thanks everyone for the help! > >Mark > >-- >Mark G. Thomas (Mark at Misty.com)

12 years, 8 months

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installing 2.11BSD on a pdp11/53

by ak6dn＠mindspring.com

The process I outlined is purely for disk image manipulation, it has nothing to do with tape images or usage. The UC17/18 Emulex controllers I have maintain the per disk configuration info in a separate NVRAM on the card. They don't store any info on the disk itself. -----Original Message----- >From: Holm Tiffe <holm at freibergnet.de> >Sent: Nov 30, 2013 4:10 PM >To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> >Subject: Re: installing 2.11BSD on a pdp11/53 > >Don North wrote: > >> If you can get a SCSI card for a PC, or a unix system with SCSI disk >> interface, you are golden. >> >> Here is what I did to get 2.11BSD over to my 11/44 with an Emulex UC18 SCSI >> controller: >> >> (1) Use SIMH to configure/build a working 2.11BSD system from scratch >> tapes, if you desire. >> >> (2) Or you can get pre-built 2.11BSD image from here: >> http://www.ak6dn.dyndns.org/PDP-11/2.11BSD/ >> or other locations on the net as well. The image I built is current >> thru the latest patches. >> >> (3) Mount the SCSI disk on which you will be installing the 2.11BSD image >> on your PC/linux box. Use 'dd' to blast the whole image (from (2)) to the >> disk. >> >> (4) Dismount the SCSI disk from your PC/unix box, carry it over to your >> PDP-11, install it, and boot it up. >> >> Any way you can do a byte-for-byte copy of the SIMH .dsk file to your >> target SCSI drive should probably work. >> >> Don >> >> >May be this works wit an CQD220 Controller, but I don't think that this >will work with an Emulex UC07. >The Emulex can partition the disk in some slices, the information where the >partitions are, is somwhere on the disk. > >I wrote out Tapes with SIMH to a Unix file and converted those files with >the containing Block length information to a real tape (on some qarter Inch >Tapes with an Tandberg drive [525 MB and up, the smaller Tapes don't >support variable block lenghts]). Done this on FreeBSD. > >This way I've created install tapes for 2.11 BSD, RT11, RSX11 and >XXDP. > >Regards, > >Holm >-- > Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, > Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 > www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741 >

12 years, 8 months

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PC/XT ISA Cards Available - Offers Please.

by dave.g4ugm＠gmail.com

I recently picked up the following cards at a Radio Rally and I don't really need them, but thought they might be useful to someone. 1 x Oak VGA card. No Manual (but I think I have a table of switch settings somewhere as I used to own one as well) 1 x Emulex Persyst IBM CGA Compatible Card with Printer Port. No Composite out but has header on card. Boxed and with manual. 1 x Western Digital WD1002S-WX2 "Winchester" Controller Card. The Manual for this is here:- http://bitsavers.informatik.uni-stut...nual_Jul85.pdf <http://bitsavers.informatik.uni-stuttgart.de/pdf/westernDigital/WD100x/79-0…> All Items truly untested, "sold as seen" as I don't have any real XT's or an MFM hard disk to test with. Pictures are on the Vintage Computer Forum but you will have to sign up to view:- http://www.vintage-computer.com/vcforum/showthread.php?40341-PC-XT-Cards-VG… Oh and in case any one doesn't know, I am in Greater Manchester, England.... -- Dave Wade G4UGM Illegitimi Non Carborundum

12 years, 8 months

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Commodore Cube?

by dgriffi＠cs.csubak.edu

Someone posted to comp.sys.cbm this link: https://www.ricardolino.ch/de/sammeln-antikes/antike-technik-gerate/zurich/… What is this thing? -- David Griffith dgriffi at cs.csubak.edu

12 years, 8 months

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IBM 5100/5110 ROS (ROM) images?

by mikoto0931＠me.com

Hello. I'm a vintage computer collector and live in Seoul, Korea. A few days ago, I saw your mail(http://www.classiccmp.org/pipermail/cctech/2007-January/032585.html). How did you extract ROS data? Can you give me some information about it?

12 years, 8 months

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looking for a Powerbook 160/180

by lori.emerson＠gmail.com

If anyone would like to sell their Mac Powerbook 160 or 180 to me for the Media Archaeology Lab, please let me know! I'm hoping to demo an early Hypercard project... thanks, Lori -- Lori Emerson Assistant Professor | Director, Media Archaeology Lab Department of English, University of Colorado at Boulder Hellems 101, 226 UCB, Boulder, CO 80309-0226 loriemerson.net | mediaarchaeologylab.com

12 years, 8 months

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DEC LA36 Decwriter II in Dallas, TX

by dfnr2＠yahoo.com

Hi all, I just picked up a DECwriter II, and after the elation of receiving it, the reality is sinking in that I just don't have any more space for any new projects of this physical dimension.? As much as I'd love to have this (I learned on these in the 70's), I have to find a home for it.? I'm asking $100, which is less than half of what I laid out to acquire it.? Is there anyone with an interest who would be able to pick it up, or arrange a pickup, in the Dallas/Fort Worth area? Dave

12 years, 8 months

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1.5A 25V fuse w/ leads

by b4＠gewt.net

Hello, ANyone know if mouser carries anything that'll work for this? I'm going to try and make home-made cab kits for a DEUNA and DQQNA. I seem to have found the connectors (to plug in to the berg and the AUI socket) The things I need to grab next are: wire/cable and those fuses. As I need to get caps and a thermistor from Mouser, i'd prefer 'em all from the same place. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 8 months

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Second MSCP controller in a PDP-11/73

by chd＠chdickman.com

What unit numbers to the drives on the second controller show up at? I have a CQD-223 as the primary controller and an RQDX3 as the second controller with an RX50.

12 years, 8 months

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Fwd: [Simh] Resurrecting the ARPAnet IMP

by jim＠deitygraveyard.com

I thought this was rather interesting. ---------- Forwarded message ---------- From: Bob Armstrong <bob at jfcl.com> Date: Fri, Nov 22, 2013 at 9:41 AM Subject: [Simh] Resurrecting the ARPAnet IMP To: simh at trailing-edge.com This summer a group of us worked together to resurrect the original ARPAnet IMP software, and I?m now happy to say that the IMP lives again in simulation. It?s possible to run the original IMP software on a modified version of the H316 simh and to set up a virtual network of simulated IMPs talking to each other. IMP to IMP connections, which would have originally been carried over leased telephone lines, are tunneled over IP. As far as we can tell, everything works pretty much as it did in the early 1970s. IMPs are able to exchange routing information, console to console communications, network statistics, and they would carry host traffic if there were hosts on the network. The hooks are in there to allow simh to support the IMP side of the 1822 host interface, and the next step would be to recover the OS for an ARPAnet era host and then extend the corresponding simulator to talk to the IMP simulation. If you?d like to know more, you can read a detailed account of the whole adventure here ? http://walden-family.com/bbn/imp-code.pdf Everyone involved has agreed to release their work under the same terms as Bob Supnik?s original simh license, and I?m looking for suggestions as to how to handle that. We could just ZIP everything up and host it on the website along with all the other BBN and ARPAnet documentation. If the community considers the simh extensions for the BBN hardware to be of general interest then it could be submitted to the current simh repository. Or it could go somewhere else - I am open to suggestions. Thanks, Bob Armstrong _______________________________________________ Simh mailing list Simh at trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh

12 years, 8 months

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Emulex QD0110202 F.R.D. mode on a LSI-11 system

by Mark＠Misty.com

Hi, Does anyone have the manual or at least the ODT prompt commands to get into F.R.D. mode on an Emulex QD0110202 controller? So far my google-foo has failed on this one. The closest I have found so far is for a QD21, but I think close but no cigar in this case. Thanks, Mark -- Mark G. Thomas (Mark at Misty.com)

12 years, 8 months

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Anyone have a Scientific Micro Systems SMS-1000 PDP-11 system?

by glen.slick＠gmail.com

While on the subject of SMS, does anyone have an SMS-1000 PDP-11 system? http://www.bitsavers.org/pdf/sms/qbus/ 3001076A_SMS1000oem_Feb87.pdf The built in storage controller is supposed to be fully MSCP compatible and while I have been able to get RT-11 working on the internal hard drive I have never been able to get it to work with RSTS/E or 2.11BSD. It has been a while since I've powered up the system and from what I remember the firmware would display a version less than 1.0, maybe something like 0.8, or maybe the version was written on the firmware EPROM labels. Also, the CSR address choices available to configure the built-in MSCP controller in my SMS-1000 don't match the CSR address choices listed in the manual. If anyone else has one of these SMS-1000 systems I would be curious to know what firmware versions you have, and whether you have been able to get anything other than RT-11 working with the built in MSCP controller. -Glen

12 years, 8 months

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Looking for historical info on the Soviet UM1-NK

by steve＠tronola.com

Hi Jan, >I've found some stuff; > >Here is some history: >http://www.computer-museum.ru/books/vt_face/9_staros_1.htm > >And here is a general summary of the machine: >http://www.computer-museum.ru/books/vt_face/prilogenie_16.htm --- Thank you so much for digging up the additional references. It's interesting that it differs somewhat from the existing ones I have insofar as word length and power consumption. The new figure of 200-Watts seems more plausible than the 100W the other sources give. The new reference also reveals that production didn't start until 1963. With no mention of the previous UM-1 model, one can only assume that it wasn't produced in quantity. --- Truly useful parts of the puzzle. Thanks, Steve L.

12 years, 8 months

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BA23 common component failures?

by b4＠gewt.net

Evening, What're the components most likely to fail in a BA23 PSU? I have one that keeps pouring smoke out of it...yet I can never see a component that's burnt, punctured, or other stuff like that. I also never hear an arc or anything exploding. The PSU also squeals when powered down. Yes. It seems to STILL work despite smoke coming out of it. Haven't confirmed after today's magic smoke release though. I'll test again once I get a warmer day. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 8 months

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cctech Digest, Vol 123, Issue 31

by ceforman＠sbcglobal.net

Hi Ethan, Yeah, that's exactly the sort of thing I'm looking for.? I have a few early Infocom titles for DECmate II and Rainbow: http://yois.if-legends.org/vault.php?id=553 But the holy grail has always been the PDP-11 version of the original mainframe Zork.? I've seen the scans, and have held an original printed version in my hands when I visited a German collector years ago, but am looking for an original for myself.? Same with the map in DEC Professional. The TRS-80 Personal Software Zork is also fairly rare and sought-after, so congrats on finding that. >________________________________ >Date: Tue, 26 Nov 2013 21:59:38 -0500 >From: Ethan Dicks <ethan.dicks at gmail.com> >To: "General Discussion: On-Topic and Off-Topic Posts" >??? <cctalk at classiccmp.org> >Subject: Re: Seeking a few game-related DEC PDP-11 items >Message-ID: >??? <CAALmim=VTMLp9aw1Gt2MNCqh-OcxKZvjDfHjbOO1NhS47-pvzw at mail.gmail.com> >Content-Type: text/plain; charset=ISO-8859-1 > >>>C.E. Forman wrote: >>> I collect old computer games and am trying to find the PDP-11 version of >>> Zork, complete with the original media, instructions and printed map.? I am >>> also looking for the November 1982 issue of DEC Professional, which featured >>> a hand-drawn map of the game. > >I know what he's after.? I've never personally seen any commercial Infocom >games except for a new copy of "Deadline" hanging on the wall at the >DEC store in downtown Columbus, c. 1984.? You can find downloads of >Interactive Fiction for the PDP-11, but genuine original media and paper >manuals are quite rare.? I did manage to get some version of the Infocom >interpreter hacked to run under RSTS/E for VCFmw last year (the >memory allocation code for RT-11 does not run unmodified under RSTS/E, >you have to add one more system call to make it work), but, again, it's >not an original. > >Just the map from the November 1982 DEC Professional has been scanned >and can be easily googled, but the whole paper magazine is somewhat >uncommon, owing to age. > >Good luck on your search.? My oldest Infocom goodies are a TRS-80 disk >and Personal Software-published manual.? I've downloaded the scans of >the PDP-11 manual (a copy surfaced a couple of years back), but as I >said, I've never held an original. > >-ethan

12 years, 8 months

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Keytronics caps-lock mechanism

by snhirsch＠gmail.com

I pulled my Corvus Concept keyboard apart for cleaning and managed to knock loose the white nylon "collar" around the caps-lock key mechanism. Apparently there was a microscopic pin inside with an equally microscopic load spring behind it... At any rate, no toggling anymore :-(. Is there anyone on the list who may have cannabilized a Sun 4 keyboard and can spare the caps-lock assembly from it? Or, any suggestions for getting this to work again? Steve --

12 years, 8 months

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excess documentation near Boston

by akb+lists.cctalk＠mirror.to

I'm dumping about 40 manuals, pics at: http://www.flickr.com/photos/61575639 at N06/sets/72157638073631285/ Mostly DEC/Digital from the mid-90s (VMS 5.x guide, OS/2 1.3 manual, various Storageworks things, OpenVMS cluster config, Alpha 3000 owner's manual, etc.) but a bit of everything... Hypercard, ISDN, Sun E450 owner's manuals, etc. I'll probably try to ebay the NeXT manuals. This stuff is free if you show up in Somerville Massachusetts soon to collect it, and I could be convinced to pay to ship it to a public archive (if bitsavers or archive.org wanted any of it, for example), but I'm likely to want money from anyone else who wants me to ship things; it takes a lot of time and attention away from sorting stuff. --cheers --akb

12 years, 8 months

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NEC PowerMate 1 Plus and Video 7 VEGA

by thrashbarg＠kaput.homeunix.org

Hi all, I'm wondering if anyone has the setup disk(s) for an 80286 NEC PowerMate 1 Plus. I've found various utilities for other models but they don't clear the error message about the CMOS configuration on boot. The files I've tried are at ftp://ftp.necam.com/pub/desktop/PowerMate/Old.PowerMate/ I'm also after the utility disk for a Video 7 VEGA Deluxe EGA card, which came with it. http://stason.org/TULARC/pc/graphics-cards/U-Z/VIDEO-SEVEN-EGA-V7-VEGA-DELU… Can anyone assist? Thanks, Alexis K.

12 years, 8 months

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anyone have this OBP Reference TOI

by rescue＠hawkmountain.net

http://www.scribd.com/doc/39444960/Solaris-OBP-Reference-Guide Hoping someone here might have this doc... -- Curt

12 years, 8 months

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Stopping the NVRAM TOD clock

by rescue＠hawkmountain.net

I've used the following references: http://www.squirrel.com/squirrel/sun-nvram-hostid.faq http://ftp.rodents-montreal.org/mouse/docs/Sun/nvram/stop-the-clock While doing some clean up, I found my notes where I figured out how to stop the time of day clock on a 6X0MP system @ open boot prom: f1201000 f o map-page 80 ff8 c! 80 ff9 c! 0 ff8 c! At the time I had done this, I could not find a source on the net on how to do this. I did some research, and based the above on Sun-4c instructions modified for the boot rom and the different addresses of the location of the NVRAM in memory, and the different position in that model of NVRAM used on the 6X0MP for the clock itself. I just did some searches now, and it looks like nobody indicated the above for the 6X0MP, but I found references to the above for the SS10 and SS20. Thought I'd pass this along. On one of the links it shows a one liner on stopping the TOD clock on an ss1000: 00280000 f Anyone know if that is all that is required, or is was this just identifying where it is in memory, but no specifics within the TOD clock memory on what to do ? Anyone have the mojo on stopping the TOD clock on: Ultra 1 Ultra 2 Ultra 60 Ultra 10 SparcServer 1000E Sunblade 1500 Sunblade 2000 ??? Thanks, -- Curt

12 years, 8 months

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IBM RS6000 ?

by buddy.holman＠gmail.com

Folks, anyone interested in an IBM RS6000 7248, model 100. I have the system unit only, no keyboard, display or mouse. I also have manuals, AIX 4.3 Quick Beginings, AIX 4.3 Install Guide and AIX 4.3 Network Install Management and Reference. This machine is roughly the size of an IBM AT and it is HEAVY. Ellis

12 years, 8 months

4
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Seeking a few game-related DEC PDP-11 items

by ceforman＠sbcglobal.net

Greetings, everyone.? Jim Leonard (Trixter) of oldskool.org referred me to this list. I collect old computer games and am trying to find the PDP-11 version of Zork, complete with the original media, instructions and printed map.? I am also looking for the November 1982 issue of DEC Professional, which featured a hand-drawn map of the game. Thanks in advance for any assistance in locating these.

12 years, 8 months

3
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Looking for historical info on the Soviet UM1-NKh

by steve＠tronola.com

Hi Folks, I've been searching for historical info on the Soviet UM-1 or UM1-NKh, which some have claimed to be the "first" minicomputer. (Of course, that has little meaning without a careful definition of terms.) So far, I've only uncovered a little approximate info about it, including: - Approved for production in 1962 - 13-bit word - 8000 transistors - 150-lbs - 100 Watts (!) - The UM-1 was an earlier (military?) model but it's not clear if it was manufactured. The key info that I'm looking for includes: - Date of first production shipment - Amount of RAM - Memory cycle time - Approximate price (whatever that meant in the USSR) Any help would be appreciated. Thanks, Steve Lafferty http://tronola.com

12 years, 8 months

2
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Searching for game items related to PDP-11 and Rainbow

by ceforman＠sbcglobal.net

Hi, everyone.? Jim Leonard (Trixter) referred me to this list. I'm lookingfor PDP-11 items related to the Advent / Colossal Cave adventure game, and the Dungeon / Zork game developed at MIT.? Anything related to them -- source code printouts, any documentation, etc.? For Dungeon / Zork, there was an official version sold by the creators that included a manual and map along with the original media.? If you have that you can pretty much name your price and I'll pay it. I'm also looking for the November 1982 issue of DEC Professional magazine, which included a hand-drawn map of the game, and any boxed software for the DEC II or DEC Rainbow computers. Thanks for your time.

12 years, 8 months

2
1
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Looking for HP 4951C cable

by charlesmorris800＠centurytel.net

I recently got a deal on an '80's HP protocol analyzer - really handy when you're trying to get a terminal to talk to a PDP-8 or -11, among other things :) But I need the cable that connects the interface pod to the analyzer. It's a straight 37 pin D-size I think... not sure if shielded, twisted pair or what's inside. Probably not fancy since the 4951C only goes to 19.2 kbps. I could make one from ribbon cable and IDC connectors, but would rather have an original. Anyone got a spare? thanks Charles ps already posted request on HP group ;)

12 years, 8 months

2
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Panasonic JD-850M CP/M computer

by terry＠webweavers.co.nz

I posted some photos on the vintage computer forums. Some of those on list list might be interested to see this. A very solid machine indeed. http://www.vintage-computer.com/vcforum/showthread.php?40132-Panasonic-JD-8… Terry (Tez)

12 years, 8 months

2
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ISO SMS FW drivers

by shadoooo＠gmail.com

Hello Al, I have an interface like this, and an attached working hard disk that boots RT11. I don't have an original floppy disk with drivers or tools, I'm searching for it too, but some time ago I did a copy of the hard disk content, thus also of the drivers for the interface. I'll be glad to send / upload an RT11 floppy image for SIMH including these files. Furthermore a guy an year ago contacted me about drivers for SMS (I posted a message searching for manuals at the time); he had a copy of manuals and ROM onboard with latest version. I can provide a copy of all of this. Let me know how I can send you the files. Andrea

12 years, 8 months

1
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Anyone want to spend $1900 on a Mac 128k?

by christian_liendo＠yahoo.com

Anyone want to spend $1900 on a Mac 128k? http://newyork.craigslist.org/mnh/sys/4209740677.html This isn't the only insane request in New York..? I think the people on Craigslist in this city are a bit crazy in the prices they ask for.?

12 years, 8 months

6
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IMSAI DIO/PDS floppy controller docs

by jlwiley123＠earthlink.net

I am looking for documentation for an IMSAI DIO/PDS floppy controller board set. The boards are revision 1.1, I believe. I have pictures here: http://www.flickr.com/photos/106931119 at N08/ I eventually hope to connect them up to an IMSAI 8" disk subsystem (old Calcomp 142 drives), but I am interested in finding out if they will work with other drives, what cables I need, etc. Also, I want to know if there is some kind of monitor on what looks like a rom chip on the DIO card, and if so, what address it shows up at? I have emailed Mr. Fischer at IMSAI.net, but haven't heard back. James

12 years, 8 months

1
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4.3BSD source tape offered on FreeBSD

by cclist＠sydex.com

http://forums.freebsd.org/showthread.php?t=43346

12 years, 8 months

6
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cctalk Digest, Vol 123, Issue 24

by Wayne.Smith＠warnerbros.com

I have one as well, tethered to a IBM 5170. I have pretty full documentation and also have the OS media, though I have never checked it out to determine if it works. I bought my 5364, with PC card and cable, on Ebay in 2004 for $101 from digitaldinos.com. Thought it was a pretty decent deal at the time . . . -W On Fri, 22 Nov 2013, at 09:45:51 Colin Eby <colineby at isallthat.com> wrote: I have one, but couldn't quote you a fair price. They're rare enough, but without having the DEC collect-ability cache. I would advise anyone acquiring one to be sure they get the customer console adapter and cable with the system. The system has to be pretty permanently tethered to a PC. I believe the PC needs to be a fairly compatible XT, though I've so far failed to get mine to boot properly, so take my advice on this with a grain of salt. I also have the docs for one. Not sure they've made it to bitsavers yet, so might be useful. I believe other people on the list have the OS media. That's something I currently lack. -Colin On 22 Nov 2013, at 01:43, Benjamin Huntsman <BHuntsman at mail2.cu-portland.edu> wrote: > Anyone have or have seen a 5364? > Any idea on a fair price? > > Thanks! > > > ------------------------------ Message: 14 Date: Thu, 21 Nov 2013 02:13:04 -0500 From: Paul Birkel <pbirkel at gmail.com> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> Subject: DEC VAX-11/730 Boot Tape Message-ID: <CAJj77ru_XHpnx59fL7Xi8V64VXkWwqzGUBRXmA-+3zwNwafi0g at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 I've thus far been unsuccessful locating any TU-58 emulator "tap" files for booting an old 11/730. Or any "tap" files specific to, or appropriate for, the 11/730. Is it just that my google-fu is bad, none are posted, or possibly none exist? Thank you for any guidance or commentary that anyone cares to offer, paul ------------------------------ Message: 15 Date: Fri, 22 Nov 2013 01:20:12 +0000 From: Rich Alderson <RichA at LivingComputerMuseum.org> To: "cctech at classiccmp.org" <cctech at classiccmp.org> Subject: CompuServe PDP-10 programming? Message-ID: <539CFBE84C931A4E8516F3BBEA36C7AA01858066BB at 505MBX2.corp.vnw.com> Content-Type: text/plain; charset="us-ascii" I'm currently pulling the CIS-local code out of DECWAR in aid of installing it on the DECsystem-1070 (KI-10 #587) running at the museum. It would be very helpful to (1) talk to someone who programmed in Macro-10 on the CIS systems, or (2) at least find someone with UUO and programming environment manuals. (I don't see either CIS or CompuServe on Bitsavers, but I may be missing something.) Does anyone reading CCtech/CCtalk want to confess to having experience in these matters? Privately or publicly? Thanks, Rich Rich Alderson Vintage Computing Sr. Systems Engineer Living Computer Museum 2245 1st Avenue S Seattle, WA 98134 mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/ ------------------------------ Message: 16 Date: Fri, 22 Nov 2013 08:26:14 +0100 From: supervinx <webmaster at supervinx.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: IBM 5364 System/36 PC Message-ID: <1385105174.2200.3.camel at SVX-NOTEBOOK> Content-Type: text/plain; charset="UTF-8" Il giorno ven, 22/11/2013 alle 01.43 +0000, Benjamin Huntsman ha scritto: > Anyone have or have seen a 5364? > Any idea on a fair price? > > Thanks! > > I have three and a half... but I acquired it almost for free... A fair price is near to zero :) You need also the special cable and the PC receiver, besides PC software and a suitable host pc acting as a console (usually an XT). I have some software disk images, also... -- Retromuseum: http://www.supervinx.com/Retrocomputer You can reach me at: http://www.youtube.com/supervinx http://www.myspace.com/supervinx http://www.facebook.com/supervinx ------------------------------ Message: 17 Date: Fri, 22 Nov 2013 10:41:50 +0000 (GMT) From: P Gebhardt <p.gebhardt at ymail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Alphaserver 1000 diagnosis? Message-ID: <1385116910.43466.YahooMailNeo at web28706.mail.ir2.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Hi Tom, thanks for sharing your experience with the list ! There are two 1000A Alphaservers in my collection also waiting for a revival. They had been used by a german TV-sender to broadcast publicity. I think I'm well prepared now when I'm going to find the time to fire the systems up regarding pitfalls known about these machines. Kind regards, Pierre ? ------------------------------------------------------------------------------- Pierre's collection of classic computers : http://classic-computing.dyndns.org/ >________________________________ > Von: Tom publix <ittybittybytes at gmail.com> >An: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> >Gesendet: 23:06 Donnerstag, 21.November 2013 >Betreff: Re: Alphaserver 1000 diagnosis? > > >I got A AS1000 on ebay as we speak. It woks fine but getting it ready I >found out a few things. TRU64 is really picky. If you have unsupported >cards or even supported cards with the wrong or outdated firmware you can >get machine checks. > >Older version of BSD's Net, Free and Open will machine check. I use NetBSD >6.1 and it works fine in almost any configuration and even with cards with >outdated firmware (it will complain though) > >If you have the StorageWorks backplane misconfigured it can machine check. > >By the way, I had the Storage works backplane configured just to use the >qlogic 1020 controller and not the raid card, and I had concurrently 50/68 >and SCA containerss and the AS1000 running Netbsd identified them all >correctly and I was able to read and write to all the disks even the SCA >one!!. > >tomp > > > >On Fri, Nov 15, 2013 at 6:52 PM, Daniel Seagraves ><dseagrav at lunar-tokyo.net>wrote: > >> (I think I asked this once before, but I can't remember the result and I >> can't find the thread in the archive) >> >> I have an Alphaserver 1000 that I would like to resurrect. It periodically >> hangs or reboots. When it reboots the error is usually "Machine check while >> in palcode". When it hangs, the hang is so severe the halt button does not >> work. Either way, it always happens within 20 minutes of booting. I ran all >> of the diagnostics you get by moving the CPU card jumper (cache memory >> tests, RAM tests) and they run for an hour or so with no error. (I am >> assuming the diagnostic halts on error instead of just looping again, is >> that correct?) During the course of these I moved the jumper to the wrong >> place and wiped out SRM, so I had to reload SRM from floppy using the >> failsafe loader. That worked. The SRM diagnostics will also run for as long >> as I want without error. Does anyone have any idea what's wrong here or is >> there some kind of XXDP-like thing I can run that will better test the >> machine? >> >> >> > > > ------------------------------ Message: 18 Date: Fri, 22 Nov 2013 11:31:41 +0000 From: Adam Sampson <ats at offog.org> To: "General Discussion\: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Getting ITS running under simulation Message-ID: <y2ay54g3c6a.fsf at cartman.at.offog.org> Content-Type: text/plain Josh Dersch <derschjo at gmail.com> writes: > the KLH-10 page (and all the others I've found) link to > ftp://ftp.its.os.org/its/klh10/pi-its-a11110.tar which is dead, and I > don't see it archived elsewhere. I had that file sitting around from when I'd played with ITS some ten years ago, so I've uploaded it to archive.org: https://archive.org/details/KLH10-PI-ITS The instructions I actually wound up using to build an ITS system were these ones, though: http://www.cosmic.com/u/mirian/its/itsbuild.html -- Adam Sampson <ats at offog.org> <http://offog.org/> End of cctalk Digest, Vol 123, Issue 24 ***************************************

12 years, 8 months

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WTT: 81 Atmel 28c256 eeprom for 29c256 flash

by dgriffi＠cs.csubak.edu

I have 81 more P112 boards, so I need 81 more boot rom chips. I managed to buy Atmel 28c256 parts (which are eeprom) rather than the 29c256 (which are flash) parts. Is there someone out there who wants to do a swap? -- David Griffith dgriffi at cs.csubak.edu

12 years, 8 months

1
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MicroVAX issues

by cctech＠beyondthepale.ie

> >It seems the 12V rail disappeared now...I'll confirm tomorrow. No serial >and no AUI. System is...difficult to get to a console prompt now unless >it is moved or smacked. > Is the 12V rail present at the power supply connector? If not and the other rails are working, it is likely that only a very small number of components and could be responsible. If the problem is intermittent, it is likely to be due to a bad solder joint between one of these components and the power supply PCB or a bad contact in a connector. If you trace the wire carrying the 12V line into the power supply, it should be possible to find which rectifier and reservoir capacitor produce it from the chopper transformer. The only other components involved are likely to be a filter choke, a fuse or circuit protector of some kind and maybe a low value resistor to sense current draw. Identify the components involved and check that they are all securely soldered to the PCB. Try tapping the components involved and the PCB in their vicinity with something insulated while monitoring the 12V rail to see if the problem can be provoked. Be very careful to avoid touching or short circuiting anything on the live side of the chopper transformer and the mains input side of the power supply in general if you have to run it with the cover off. Regards, Peter Coghlan.

12 years, 9 months

2
1
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HP 75000 BASIC ROMs

by kylevowen＠gmail.com

I'm looking for the set of BASIC ROM images for the HP E130X 75000 mainframe. Visually, the unit looks like this: http://www.dontscrapit.com/Vermont-/Hp-75000-series-b-mainframe-w-E1326B-me… some don't have the front panel. If it comes with a floppy drive, it is likely to have the BASIC ROMs. If anyone has one of these and can check the ROMs, please let me know. I believe there are only two EPROMs that contain the BASIC image. Thanks! Kyle W4GNU

12 years, 9 months

2
1
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MicroVAX issues

by cctech＠beyondthepale.ie

> >Replacing the battery should get rid of a lot of errors. ;) > >Is there a way to disable the charging circuit? I can get 3.8V without too >much trouble but the batteries would be non-rechargable. > The simplest thing is to buy a little NiCd or NiMH battery pack containing three cells, designed for use in cordless telephones. It may even be possible to find one with the right connector to plug directly in to the VAX. If you can only get non-rechargable batteries, you could use three 1.5V cells and two silicon diodes all in series which will prevent charging as well as dropping the voltage from the battery by roughly 0.6V to 0.7V per diode. (Two cells and one diode might work too.) Whatever batteries you use, don't leave them in the machine when it is not being used for long periods. Regards, Peter Coghlan

12 years, 9 months

1
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Christmas is coming and...

by xmechanic＠landcomp.net

I think we should all get together and send Tony Duell a new spell checker for Christmas. I think his old one finally bit the dust, LOL! All in good humor Tony. You're a great contributor to the list! Dave L. -- Dave Land Land Computer Service xmechanic at landcomp.net

12 years, 9 months

9
14
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Advent TurboROM for Kaypro 4/83

by jaquinn2001＠gmail.com

I have been working to validate the FreHD hard disk emulator ( http://www.vecoven.com/trs80/trs80.html) with the Kaypro. Good progress on the 4/84 with the Advent TurboROM but I want to validate it on my 4/83 also. (Unfortunately finding a 4/84 is not so easy..... Kaypro are not very common in New Zealand so I am stuck with the 4/83 but also very keen to try and get it going). Searching for the TurboROM for the 4/83 has been unsuccessful. The available ROM's on the internet are the 84 version (8k). I have seen several requests for it on different sites but no ROM unfortunately and no "hey look what I discovered" posts. After reading the TurboROM notes in this really good overview document ( ftp://ftp.barnyard.co.uk/cpm/walnut-...O/TURBOROM.DOC) and some work with a disassembler on the '84 ROM I have confirmed that it is specific to the machines with the 6845 video controller so modifying the 4/83 to use an 8K rom isn't enough. Hoping that someone on the list may know a source for the Advent TurboROM for the 4/83. Regards Andrew

12 years, 9 months

1
0
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ISO SMS FW drivers

by aek＠bitsavers.org

Anyone happen to have the RT or RSX drivers for the SMS FW board set? I have the RT11 test diskette, but not the driver disk(s)

12 years, 9 months

1
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help identifying IBM boards

by nw＠retrocomputingtasmania.com

In my pursuit of IBM Displaywriter hardware I spied these boards on eBay: http://www.ebay.com.au/itm/111224097497 Compared with these boards there are some similarities regarding the edge connector and overall shape/size: http://bitsavers.trailing-edge.com/pdf/ibm/6580_Displaywriter/photos/ but of course these boards were used in many other IBM peripherals and small systems from that era. Does anyone recognise what they might be from? There are three boards for the IBM Displaywriter I am seeking to find: Memory Extender Card (fits into Slot F) Printer Sharing or 3277 DE Card (for Slot C) - not sure if same or different boards Communications Card (slot A) There may also be another board that fits into the external floppy drive unit to support the additional communication ports that were available on the back of that unit.

12 years, 9 months

1
1
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DEC VAX-11/730 Boot Tape

by pbirkel＠gmail.com

I've thus far been unsuccessful locating any TU-58 emulator "tap" files for booting an old 11/730. Or any "tap" files specific to, or appropriate for, the 11/730. Is it just that my google-fu is bad, none are posted, or possibly none exist? Thank you for any guidance or commentary that anyone cares to offer, paul

12 years, 9 months

3
2
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First Post

by thomas.w.cranston＠gmail.com

Hi I was referred to this group by Vintage Computer Forums at vintage-computer.com. I was told a Al Hartman at this list might have the info I need. I have an Epson FX-185 impact printer. It was in storage for several years. It now makes a constant high pitched noise from the speaker as soon as it is turned on. The noise is definitely coming from the speaker. It is supposed to do so when out of paper. The out of paper sensor is functioning correctly I even disconnected that sensor from the board and still get the sound whether or not the circuit is completed. No bulging capacitors. Parts of the board are grungy. Wondering how to go about cleaning the circuit boards. Tom

12 years, 9 months

4
3
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Getting ITS running under simulation

by derschjo＠gmail.com

Hi all -- I have a bit of spare time again over the next couple of weeks and I would like to spend at least a little bit of that spare time getting Maze War running on my Imlac emulator; this entails first getting the Maze War "server" code running on a simulated PDP-10. (After this I hopefully just need to get the Imlac emulator talking to the PDP-10 emulator over a simulated serial port...) The Maze War server runs under ITS and I cannot for the life of me find a copy of an ITS distribution; the KLH-10 page (and all the others I've found) link to ftp://ftp.its.os.org/its/klh10/pi-its-a11110.tar which is dead, and I don't see it archived elsewhere. What's the done thing these days for getting ITS up and running? Thanks as always, Josh

12 years, 9 months

8
8
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DEC VAX-11/730 Boot Tape

by shadoooo＠gmail.com

Hello. First of all, you need a copy of the CONSOLE cassette, that contains microcode for the 11/730 (mine remained inserted in the drive for years and has a bad sticky syndrome and black spots). I have a VAX11/730 sitting in a depot, and a lot of TU58 cassette, with various software, but unfortunately no spare console or diagnostic cassette. I would try to dump it, but unfortunately I don't have a TU58 drive unit to read it (I'm searching for one to buy since a lot of time, if someone in EU or around has one, please let me know thanks!) On this site there should be a copy of the CONSOLE: http://www.heeltoe.com/download/vax/tapes-730/ Here some diagnostic for 750 (could work on 730 too?) and some software: http://iamvirtual.ca/VAX11/VAX-11-software.html Falls somebody has something more, please let us know! Thanks Andrea

12 years, 9 months

2
1
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IBM 5364 System/36 PC

by BHuntsman＠mail2.cu-portland.edu

Anyone have or have seen a 5364? Any idea on a fair price? Thanks!

12 years, 9 months

4
7
0 0

MicroVAX issues

by cctech＠beyondthepale.ie

>> >> The single question marks are non-fatal errors and the double question marks >> are fatal errors. > >It runs OpenVMS fine despite the fatal memory errors. > In this context, non-fatal selftest errors are ones which still allow the machine to automatically boot at power on, assuming it is configured to. Fatal errors are ones which prevent the automatic boot sequence from completing and leave you at the >>> prompt. You can still decide to ignore the errors and boot manually. The fatal errors are more of a "you really should know about these problems before you attempt to boot" rather than "booting will definately not work". Regards, Peter Coghlan.

12 years, 9 months

2
2
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SCSI - SMD converter

by aek＠bitsavers.org

Came across this today, patent 6606589 which describes a SMD accellerator that has a SCSI disk connected to circuitry to simulate an SMD interface through a DRAM buffer, with schematics. Pretty late patent, given the technology it was built out of.

12 years, 9 months

5
6
0 0

unibus to modern disk interface?

by js＠cimmeri.com

>> >> [...non-ancient disk on Unibus machines...] >> > > I'm surely not the only collector who would be willing to pony up > > some $$$ for such a project.... > I would certainly pony up some $. I built my own IDE->S-100 interface (with guidance from my amazing friend, Allison P); it was very easy, hardware-wise. What makes IDE to Qbus or Unibus interfacing so difficult? There must be reasons, otherwise it would have been done by now. JS

12 years, 9 months

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