test-drb November 2013

test-drb@ccmp.vtda.org

158 participants
158 discussions

by cctech＠beyondthepale.ie

> > > I vaguely recall having a 3100 where the leaking battery attacked a memory > > option board and it used to endlessly cycle around test B, which seemed a bit > > strange. I would have expected the test to have failed and terminated not > > get stuck in a loop. > > > > Did replacing the memory boards help any or was the system itself shot? > As far as I recall (and nobody ever accused me of having a good memory), when I removed the memory board, the problem went away. I don't think I had a replacement to hand. I think there is a small amount of memory on the main board so the tests should be able to run without any memory board plugged in. Regards, Peter Coghlan.

11 years, 1 month

Looking for Spectrum QL disk interface and more

by alexandre.tabajara＠gmail.com

Hi guys! I'm in love with my Spectrum QL, but it sucks without a floppy interface. Maybe someone has a spare for a cheap, or wish to xchange for any brazilian made hardware? :o) I'm also looking for microdrive cartridges, an original manual (so beautiful...) and connectors or cable + connectors for the serial and controllers. Thanks Alexandre Souza

11 years, 1 month

MicroVAX issues

by cctech＠beyondthepale.ie

> >I'm having trouble with a MicroVAX 3100 of unknown model. (It's a KA41-A >one, that's for sure.) > According to the OpenVMS FAQ, a KA41-A is a MicroVAX 3100 model 10 or model 20. > >It seems to endlessly test itself with the LEDs being 1001 1011. I have >removed all drives and the communications option thingy for testing. I >have also removed the (likely totally dead) battery. > >Does this require 3.8V as well? Could I just rig up some AAs or similar >in series or does it try to charge the batteries? > As far as I know, the battery is only to keep the clock running and retain boot settings while powered off. Unfortunately, the batterys tend to leak when left for long periods, possibly moreso when exposed to temperature cycling. The electrolyte seems to seems to wick along the connecting wires and attack the board near where it plugs in. I vaguely recall having a 3100 where the leaking battery attacked a memory option board and it used to endlessly cycle around test B, which seemed a bit strange. I would have expected the test to have failed and terminated not get stuck in a loop. Regards, Peter Coghlan.

11 years, 1 month

IBM OS/2 Disks/Manuals Available

by wmachacek＠q.com

I have the complete IBM OS/2 V2.1 (2.11) package that was probably used very little. This includes all the 3.5" disks and all the manuals that go with it. I am cleaning out a lot of older materials that I have and this item is on my list of things that must go. If anyone is interested in this item, they can have it for the cost of shipping. Please contact me if you're interested or would like more information on this item. I will send a few scans of what I have upon request. Thanks. Bill (wmachacek at q.com)

11 years, 1 month

This Raised My Pulse Today

by robert.jarratt＠ntlworld.com

> -----Original Message----- > From: Robert Jarratt [mailto:robert.jarratt at ntlworld.com] > Sent: 18 November 2013 20:29 > To: General Discussion: On-Topic and Off-Topic Posts (cctalk at classiccmp.org) > Subject: This Raised My Pulse Today > > I was at Leeds University (UK) today, when I saw this: > http://www.friendsreunited.co.uk/dec10-lab/Memory/f393c3ef-b165-41f8- > a79b-bb6e8283cc2f > > I had to do a cartoon-like double take. Sadly I could not see the machine in > question ? > > Regards > > Rob Today I walked past that room again. This time I noticed that there is an actual piece of a PDP10 in there. It looks like the console. I didn't stop because I didn't want the students inside to think I was staring at them. I am going to see if I can find out more and perhaps get a picture. Regards Rob

11 years, 1 month

Apple ][e disk drive

by mokuba＠gmail.com

Looking for a decently cheap but good (working, don't really care about comsetic) ][e disk drive or two. Anyone got any whereabouts on one or two besides ebay? And an idea of how much I should be paying? -- Gary G. Sparkes Jr. KB3HAG

11 years, 1 month

Our Computer Arrives

by stephane.tsacas＠gmail.com

Namely an ICT 1905E at Queens Mary College, University of London. http://vimeo.com/77387308 and also http://vimeo.com/77219593 Enjoy ! -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

11 years, 1 month

Help identify mystery keyboard?

by akb+lists.cctalk＠mirror.to

I have a keyboard and don't know what machine it goes to; can anyone help? Pics are at: http://www.flickr.com/photos/61575639 at N06/sets/72157637832745633/ I did not see any branding on it. It has a standard 4 position modular jack on the cord (not a DEC MMJ). It has F1 thru F18 keys at top, S1 thru S6 across the bottom framing the spacebar, and a bunch of less-common special keys like "setup" and "erase". There are three stickers on the bottom, one is an inspection sticker, another says 65-2876-51, and the third says FT10. --thanks for any clues! --andrew

11 years, 1 month

My Collection

by ploopster＠gmail.com

My pile of VAXen and mainframes has been successfully moved into my basement. Pictures of the move will be forthcoming. Thanks again to Ian for all the hard work. I couldn't have done it without your help. Peace... Sridhar

11 years, 1 month

Apple ][ DOS source code is released! (John Ball)

by bdamer＠digitalspace.com

Folks if you want to email me directly I could put you in touch with ohers trying to assemble the Apple ][ DOS source and run it in emluation. Seems like if the PROM emulation is somehow solved we could have this thing up and running. Hey now you can soup up the DOS, add cool new commands (Nutso for those in the know) and create the DOS that could have been if the ][ had rolled forward into the 21st Century and not been [] closed down! I have a sleeve of 16 bit 6502s that was part of project Brooklyn which might have been that super Apple ][. Anyway Apple ][ forever, anyone up to making an Apple II connect to the Internet and serve up its own web page? It was done with a Xerox Star years ago. PS for all you computer history buffs see all the new stories at the DigiBarn at: http://www.digibarn.com including our published assembly code for the 8008 based 1972-73 "Sac State" machine, possibly the first complete microcomputer system (well before Homebrew). bruce

11 years, 1 month

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test-drb November 2013