test-drb December 2011

test-drb@ccmp.vtda.org

194 participants
247 discussions

by useddec＠gmail.com

That's right, no "H" before the number, and that means OLD. Can't remember what they came out of, and havn't had time to check, but I found a few of each while digging today. If anyone is interested, please contact me off- list. I also have several hundred Q- bus boards I would like to find a new home for. Thanks, Paul

12 years, 5 months

Alpha, VAX available in Sweden

by pontus＠update.uu.se

Hi If you live close to Gothenburg and can act within a few days I know of some medium sized alpha and small vax machines available for pickup. VT100 and VT520 terminals also. Contact me offlist. Regards, Pontus.

12 years, 5 months

Need A Wyse WY-50?

by ohh＠panix.com

There's a Wyse WY-50 terminal which has been sitting in a box in a warehouse for nobody-really-knows-how-long which has recently come into my hands. I haven't tried powering it up - it probably wants a good checking-out first - but it looks to be in very good cosmetic condition, and the people who gave it to me say it was working when it was stowed. Keyboard, power cord and manual are all with it. It's in Seattle. Free if you can pick it up (Seattle Center, Opera House, we can arrange a time), or UPS shipping costs if you want it shipped. Slight preference to anyone who's willing to pick it up. :) E-mail ohh at panix.com if interested. -O.-

12 years, 5 months

VT100, PDT 11/150

by jgessling＠yahoo.com

Looking through some pictures my sister in law had brought over.? Everyone was ooing and ahhing about the cute kids, except me.? I noticed in the background of one my old DEC PDT 11/150 and a VT100.? Circa 1982 those were the latest and with a modem allowed me to log in to the VAX at work.? Good stuff!? Also a Heathkit H19 terminal that I had built from a kit. The PDT 11/150 was an LSI-11 single board computer stacked on top of 2 8in floppies.? That thing really clattered when I ran it.? I had bought a UCSD P-system for it from a UCSD spin off that supported that box.? The PASCAL was compatible with the Apple II so it was actually useful.? I wrote a 2D gravity modeling program for it that my boss ran on his Apple II to his hearts content without any mainframe charges.?? I can even remember how much it all cost.? The PASCAL system was $500, the H19 $500.? The VT100 and modem were loaners from work, the PDT 11 was free, DEC was giving them away to good customers, I suppose because they couldn't sell them.? Good times. Regards, Jim

12 years, 5 months

Mac/Mac Programming/Cocoa/HyperTalk Books free - Melbourne Australia

by jfoust＠threedee.com

At 12:27 PM 12/3/2011, Liam Proven wrote: >On 3 December 2011 03:36, Toby Thain <toby at telegraphics.com.au> wrote: >> >> Right -- you should be able to find it in used bookstores where you are. >> >> ...they still exist, right? :/ > >Yeah, London has a fair few. Oddly, though, the specialists are >getting quite expensive now. Charity shops are the only place for >cheap books, but they almost exclusively deal in trashy fiction, >celebrity books and coffee-table picture books. Does Hay-on-Wye, (Y Gelli Gandryll), the famous Wales book town, have a shop dedicated to tech or classic computing? I've had dinner with King Richard Booth once or twice. He had the idea to buy up all those shipping containers of old books otherwise destined for the pulper, and sorting them by topic and creating used book shops throughout that city. I have a similar pile of old Mac Think C era books and Mac developer program newsletters. And then there's all the MSDN CDs and C compiler stuffs from various PC compilers. Not quite sure what to do with it all. - John

12 years, 5 months

SCSI replacements (was Re: Data General computer)

by lynchaj＠yahoo.com

>SCSI replacements (was Re: Data General computer) >Jim Brain brain at jbrain.com >Thu Dec 1 22:36:45 CST 2011 > >Previous message: SCSI replacements (was Re: Data General computer) >Next message: SCSI replacements (was Re: Data General computer) >Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > >-------------------------------------------------------------------------------- > >Reading the vcforum thread mentioned earlier, Andrew noted there was a >previous cctalk SCSI->SD discussion here, but that it died out. What >happened there? > >JIm > > > >-------------------------------------------------------------------------------- > Hi Jim! Thanks! Although the SCSI to IDE/SD project is going slowly I did get about 20 PCBs earlier this year. So far we've gotten some builds underway and at least one builder has gotten the board to run Zapple as a debug monitor as a "proof of life". The project is quite a ways and is nearly complete. All it needs is some community involvement to push it to completion. In particular, it needs verification of the IDE, SD, and SCSI interfaces. Then it will need some firmware to handle the conversion. The main advantage of the project is that it is completely open and free. If there is sufficient interest, I will order another batch of PCBs or try to get those builders with incomplete PCBs to swap them out. In my opinion, this project is nearly complete and the shortest path to a working SCSI to IDE/SD converter. All it needs is some TLC and push from the community. As per the usual N8VEM guidelines this board uses all commonly available parts and is designed to be simple to assemble using basic tools. Please help finish this project. I sincerely think it will be valuable for years to come and it would be nice to discuss an actual converter during this frequent topic on CCTALK. Thanks and have a nice day! Andrew Lynch PS, I recognise the microcontroller/FPGA/CPLD approach is valid but they never seem to get off the drawing board. http://www.vintage-computer.com/vcforum/showthread.php?22906-SCSI-1-to-from… http://www.vintage-computer.com/vcforum/showthread.php?25989-Another-round-… http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=MINI%20SCSI%20…

12 years, 5 months

russian PDP-11 like K1801BM2 CPU Startup reading w/o address?

by holm＠freibergnet.de

I want to play with a russian K1801BM2 CPU (K1801VM2). My russian from the school is very very rusty and so I have problems to understand what's going on with this CPU while startup. There is some "besadresnoe tschtanie", a read from the bus w/o sending out an address before w/o active SYNC. It is right, that this read is building the upper 8 bits from the start address in the rom area with Systemu Mode (Halt Mode) = 1? Can anyone please confirm this? BTW: how is this external register to be done in HW? Does anyone know if there are schematics of SBCs existing w/o special support ICs like The K1801VP1-55 or so? Kind Regards and thanks in advance, 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, 5 months

S-100 8086 CPU boards available

by lynchaj＠yahoo.com

Hi! The S-100 8086 CPU boards are available for a limited time. Most of the boards are already committed to builders but there are some extras. They are $20 each plus $3 shipping in the US and $6 elsewhere. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your boards right away. Thanks and have a nice day! Andrew Lynch http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%208086%2… http://s100computers.com/My%20System%20Pages/8086%20Board/8086%20CPU%20Boar…

12 years, 5 months

SCSI hard drives of large form factors

by michael.99.thompson＠gmail.com

>Here's something I was thinking about the other day. I *know* for a fact that SCSI interface hard drives existed with 8" platters. I've never seen one, however. Does anyone know of any specific model numbers, or have any product information or pictures of such devices? I just looked in my collection of 8" drives. I have two 8" Imprimis/CDC 97201-12G PA8P1A ST81236N Sabre drives with the original style SCSI connectors on the back. There are manuals for the drive on Bitsavers at: http://www.bitsavers.org/pdf/cdc/discs/sabre/83325700N_PA8xx_736-1230mb_Par…, and http://www.bitsavers.org/pdf/cdc/discs/sabre/83325720F_PA8xx_736-1230mb_Mai…. The manuals say that the drives are 1.2G, 512 byte/sector drives with an HP SCSI differential interface. I can post pictures if you are interested. -- Michael Thompson

12 years, 5 months

Looking for Vaxstation 3100 model 30 RAM expansion

by derschjo＠mail.msu.edu

I know I kind of touched on this in my earlier diagnostic query, but I thought I'd send out a more obvious request: Anyone have a memory expansion for a Vaxstation 3100 (model 30) they're willing to part with? Something 8MB or larger would be wonderful. I have a wide variety of DEC (and other) hardware to trade. Thanks as always, Josh

12 years, 5 months

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test-drb December 2011