test-drb

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101090 discussions

by jnc＠mercury.lcs.mit.edu

> From: Jay West > A couple items in my holdings have rust ... The only good solution I > could see is having the existing metalwork sandblasted and then > repainted. I've not checked, but I suspect that's "non-trivial-$". > Thoughts? Iff you have access to an air compressor, small sandblast units can be had at Harbour Freight for less than $50. If you don't have a compressor... well, that's considerably more money, but I find a compressor is a very useful thing to have. I feed our sandblast unit (one of the HF ones) with playground sand, a couple of $ per bag, which I feed through a sieve made of 4 pieces of scrap wood (frame) and some plastic door/window screen. (If you don't sieve it, the cheapo play sand has larger bits in it which tend to jam the nozzle.) And the sieve allows me to be _really_ cheap and sweep up the sand and recycle it. I refinished an H960 which I got which was in pretty nasty condition (very severe rust on the bottom surface, some rust elsewhere, e.g. on the uprights) using this rig, and some tins of spray paint (Rustoleum flat black), and it came out looking brand spanking new. (My attempt to do the same with a BA11 ran into some shoals, I screwed up the spray-painting - definitely an art! :-) Anyway, if you're up for doing it yourself, it's a useful capability to have in-house. Noel

10 years, 10 months

Some amount of DG goodness

by shadoooo＠gmail.com

Hello, you have a very nice lot of DG stuff, indeed! I have a Nova 3 sitting on the garage, waiting for proper repair. However it's missing all the front panel switch levers, so I would need to rebuild them, not having had the luck of finding some at reasonable price. I have some picture of the original Nova 3 levers, however I didn't manged to have the exact size to fit an obtained plastic model very well. Would you mind to take one cover apart, and put it on a flat-bed scanner together with a clear ruler (in the same picture), so I can measure from the image the exact sizes? The profile is not the same, but I can obtain it from the camera pictures I already have, using your images as size reference for rescaling. Thanks Andrea

10 years, 10 months

Overlay - one answer

by rodsmallwood52＠btinternet.com

And we have a winner of the overlay competition ..... From the CBASIC manual The CHAINstatement can load two types of programs: an overlay program generated by the linker, or a directly executable file. As I used CBASIC this must be where I got it from Rod Smallwood -- Wanted : KDJ11-E M8981 KK8-E M8300 KK8-E M8310 KK8-E M8320 KK8-E M8330

10 years, 10 months

IBM 026 - Decision Data 8010 card punch on Ebay in

by marc.verdiell＠gmail.com

Wow. Thanks for sharing. What a beautiful looking machine. I hope one of us gets it. Marc ===================================== Date: Mon, 21 Sep 2015 18:36:20 +0200 From: Mattis Lind <mattislind at gmail.com> Not really a 026 but maybe contemporary with the 029: http://www.ebay.de/itm/Historische-EDV-Lochkartenstanzer-Card-Punch-von-1973 -2000-Lochkarten-/371439456530?hash=item567b845112 Not mine.

10 years, 10 months

Sheet Metal Fabrication Options?

by brain＠jbrain.com

I was wondering if anyone has or knows anyone who has experience with low volume sheet metal enclosure fabrication? I am looking for a fabricator to build small (think game cartridge enclosure sizes) clamshell units (or similar). I thought before I start cold calling folks, I'd see if someone has already had some success. -- Jim Brain brain at jbrain.com www.jbrain.com

10 years, 10 months

DG S/130 front panel switches?

by jwest＠classiccmp.org

So does anyone have a trashed/dead front panel for a Data General S/130 (S/200 would also work) that can be a donor? All I need are two switches/paddles/Covers, but my S/200 front panel is perfect so I don't want to rob from that for the S/130 project. One light blue, one dark blue... Crossing my fingers..... J

10 years, 10 months

Some amount of DG goodness

by jwest＠classiccmp.org

I decided to raid the front panel of my S/200 to get a switch cover and a switch for the S/130; what can I say - I got antsy to see if the S/130 worked ;) When taking the S/200 front panel apart I found it really wasn't in great shape as it had appeared to be from the outside. A large number of the incandescents had broken off and were sitting loose and one of the switch covers was broken so someday I'll return to the S/200 but the S/130 restoration was completed as a result. Pictures (completely out of order) are at https://www.flickr.com/photos/131070638 at N02 but the first picture shows the cpu up. Once or twice, running the microcoded self-test produced a "Rom Error", but almost always it produces the desired result and loops on that test (checks microcode checksum, ability to execute and step microcode, a few CPU instructions & paths, and tests the lowest 16Kw of ram). Raising switch 0 halts cpu at microcode address 2 just as it should. I also noticed that on rare occasion, hitting "examine" on AC1 produces no result - but other than that I can store and read AC0-3 as well as several different sections of memory. Next step is to locate a 4045 board and see if I can get a console hooked up. After that, I'll need some way to get diagnostics into the machine. To that end, I could try restoring a HD, 8" diskette, paper tape, or dual cassette drive - but I'm wondering if there is any previous art for entering a front panel ditty and stuffing diags down the console port (from a PC)? Yes, google is my next stop ;) Thanks to several listmembers and especially Bruce for pointers and advice, as documentation is scarce and not organized the way my brain works. Best, J

10 years, 10 months

DEC Alpha 3000 Model 600

by rodsmallwood52＠btinternet.com

I'm pleased to be able to report the successful installation of OpenVMS 8.3 - Alpha on my 3000 M600 It now runs Dec Windows on the graphics screen and a terminal on the serial port. TCPIP works and I can get to my local network OK. Now to find a browser. There must have been one Rod -- Wanted : KDJ11-E for my 11/94 M8981 KK8-E M8300 KK8-E M8310 KK8-E M8320 KK8-E M8330

10 years, 10 months

TSS/8 with modern disks?

by charlesmorris800＠centurytel.net

OK, there does appear to be larger disk support... now how about for RL02? Unfortunately the drive is not as smart as an RK (can't do spiral read/writes) so that would complicate things. However, each side of cylinder 0 is about 10KB, so 20K is available without having to move the drive head. I bet that would be enough swap area most of the time (it's not like most of us have 16 users all logged on simultaneously) :) -Charles

10 years, 10 months

IBM 026

by jnc＠mercury.lcs.mit.edu

> Well, here's an 029 (not quite what the OP was looking for, but good > enough for you all, I expect) for a not insane amount of money: > http://www.ebay.com/itm/281796720725 So I see this sold - anyone know who got it? Noel

10 years, 10 months

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