test-drb March 2016

test-drb@ccmp.vtda.org

189 participants
229 discussions

Anyone in the PNW Going to VCFwest this August?

by ball.of.john＠gmail.com

I'm trying to figure out a logistical nightmare to get a number of machines down there before I commit to any reservations. I'm several hours East of Vancouver Canada but there is several hundred pounds in Silicon Graphics workstations, monitors and peripherals I planned to take. My car is far too small and I am not fully licensed to rent a truck for the week. Best I can hope is someone else with a large vehicle is going the same direction there and back. Can totally help to pay some of the costs. -John

8 years, 9 months

VCF Southeast + East details updated

by cctalk＠snarc.net

It's almost time for two awesome Vintage Computer Festival shows! VCF Southeast is April 2-3. Details are here: http://vcfed.org/wp/festivals/vintag...val-southeast/. VCF East is April 15-17 (now including Ted Nelson!). Details are here: http://vcfed.org/wp/festivals/vintag...festival-east/.

8 years, 9 months

Request for TU58 tapes (DECtape II)

by malcolm＠avitech.com.au

I've just finished a restoration of a TU58 drive. I'm looking for a small quantity of TU58 tapes (perhaps 2 tapes?) to use with it. Ideally I'm looking for tapes that have been run through a drive recently and known to be not shedding oxide. If anyone has some that they are prepared to part with, please let me know. I'm happy to pay for the tapes plus shipping. Thanks - Malcolm.

8 years, 9 months

DEC H7104-D power supply tips?

by derschjo＠gmail.com

Hi all -- My call for a VAX-11/750 a month or so ago actually bore some fruit (locally, even!) and as of a couple of weeks ago, I now have a very nicely configured 11/750 system taking up most of the basement. The previous owner got it after it was retired from a local(ish) university in the mid 1990s and it has not been powered on since then. Apparently at the time of its retirement the power supplies were exhibiting "random issues." (No more detail is available than that on the history...) At any rate, I went through the two power supplies (and the small pilot supply in the power controller) and found a lot of leaky capacitors (as in, yellow/brown goo was coming out of maybe 2/3 of them) so I went ahead and recapped the whole thing. At the moment I have things running on a dummy load in the 11/750 chassis. (the harnesses are still hooked to the chassis backplane, but all cards have been pulled, and the backplanes thoroughly checked for bent pins, etc.) The H7104-C (2.5V) supply seems to be working fine but the main 5V supply in the H7104-D is not doing so well (and as a result the other voltages it's supposed to be producing are also not present). The Power Controller lights up the "Reg. Fail" lamp (I don't know why the 5V Fail lamp isn't also on) and the 5V supply emits a loud (somewhere around 400Hz?) whine/squeal. I get about .3V out of it with a load. Without a load there's no squeal and I get about 5.6V, but that's not particularly useful. I've double-checked everything in the H7104-D and there's nothing obviously wrong (no caps installed backwards, no scorched components). At the moment the H7104-D is hooked up only to a dummy load, so it's not anything on the backplane shorting out or causing issues. This is another one of those cases where I've gotten myself in over my head with large, complicated power supplies -- anyone have any experience with these? Any tips? Thanks as always, Josh

8 years, 9 months

A gold mine for anybody in Austin...

by r3trohub＠gmail.com

Unfortunately, I'm nowhere near Austin! But here is a great gold mine for somebody local http://austin.craigslist.org/sys/5436553322.html

8 years, 9 months

Free: DEC 19 Inch Rack and Kennedy Tri-Density 9-Track Drive in Exeter, NH, USA

by mardy＠me.com

I have a vintage DEC 19 inch rack with a Kennedy 9400 Tri-Density 9-Track tape drive located in Exeter, NH, USA that needs a good home. If you?re interested I can send some photos, etc. Thanks, -Mardy

8 years, 9 months

anyone have a working RV-20 or RV-64?

by aek＠bitsavers.org

we have a bunch of optical packs at CHM that we'd like to archive does anyone have a working setup?

8 years, 9 months

PDP-8/a parts, 8 inch CDC floppy drives, 5.25 inch FH Tandon drives, TI SilentWriter, DECprinter I, LA30

by mattislind＠gmail.com

I saw that there were a post on PDP-8/a systems (and parts). I have a few 8A100 chassis. These are H9300 with a G8016 regulator board. No CPU, no memory, no frontpanels. Just the H9300 chassis including the 10 slot backplane, the 50Hz transformer assembly and the G8016 MOS memory regulator. BTW. The backup batteries are probably not in good shape any longer. Nothing is tested so capacitors etc might need checking. There are also some G8018 regulators, 50 Hz transformers for 8A400/8A600/8A800 boxes, 50 Hz transformers for 8A420/8A620/8A820 boxes (these are really very heavy). Then there are two CDC / IMI floppy drives. BR8A5D. Single sided. 8 inch. http://i.imgur.com/cMp76YA.jpg http://i.imgur.com/EA91ayu.jpg http://i.imgur.com/pWpmdX6.jpg http://i.imgur.com/eP3m06n.jpg They are in the original box. Not sure if these are new or not. They look fine. But haven't tested them. I might be able to test if there are interest. Then two Tandon TM100-3 Single sided 80 tracks / 96 TPI drives. Tested working. http://i.imgur.com/UOnHNNI.jpg http://i.imgur.com/F4ypilz.jpg We have one too many of TI SlientWriters. I have no picture of it currently. But is som 7XX model I think. Printing on thermo paper. Interest? We have a few DECprinter I aka LA180. A manual can be included as well... And since we got one LA30 working just fine, we don't need another one. There is one DECwriter / LA30 available. It is complete but will probably need care and attention to get working. Everything is located in Sweden so shipping can be rather expensive for heavier items. Trade for something interesting... /Mattis

8 years, 9 months

PDP 8A for sale

by sellam＠vintagetech.com

I have a PDP 8A for sale. It's kind of a project but as far as I can tell it's complete, with the front panel. See photos and information here: http://vintagetech.com/sales/Big%20Iron/PDP%208a/Chassis%201/ Asking price is $900 obo. I also have two other PDP 8A systems in various states of disrepair here: Complete boardset and chassis without front panel - asking $450 obo http://vintagetech.com/sales/Big%20Iron/PDP%208a/Chassis%202/ Junk system for parts/serious restoration - asking $300 obo http://vintagetech.com/sales/Big%20Iron/PDP%208a/Chassis%203/ Also please start here and navigate for more computers I presently have for sale: http://vintagetech.com/sales/ Please inquire directly with me with any questions. Thanks! -- Sellam Abraham VintageTech ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintagetech.com Whatsoever a man soweth, that shall he also reap. The truth is always simple. * * * NOTICE * * * Due to the insecure nature of the medium over which this message has been transmitted, no statement made in this writing may be considered reliable for any purpose either express or implied. The contents of this message are appropriate for entertainment and/or informational purposes only. The right of the people to be secure in their papers against unreasonable searches and seizures shall not be violated.

8 years, 9 months

ACE Key codes (xx2247 etc.)

by jwest＠classiccmp.org

The decoding of the DEC PDP XX2247 keys has been discussed, but I have not yet seen decoding for others. To repeat the data for XX2247, that is 5173757 assuming 7-1 with a center offset To add to that knowledge, I'm checking other keys I have. Note - I'm sure of the XX values of course but the codes have not been tested/confirmed yet; I will do so and report back. For every Data General Nova (800, 1200, 1220, 2) & Eclipse (S/130, S/200) that I have, those keys are all stamped XX2065. The coding appears to be 1353757 (7-1, center offset) For every HP 2100 that I have, those keys are all stamped XX2946. The coding appears to be 4557457 (7-1, center offset). Of course, the advantage is that copies of copies tend to get off, and with the original code we can all get "original tolerance" keys. While I'm testing/confirming the codes for XX2065 and XX2946, can anyone with stamped DG Nova/Eclipse keys or stamped HP2100 keys confirm if their XX numbers are all the same? I've got enough of each that I'm fairly sure those keys fit all of those systems, but wanted to check. Are there other common systems that used Ace keys that we should document besides XX2247, XX2065, and XX2946? I should probably toss up a quick website under classiccmp if so. J

8 years, 9 months

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test-drb March 2016