test-drb September 2004

test-drb@ccmp.vtda.org

268 participants
648 discussions

S.F. Bay Area -- PDP-11 HW available -- Disks and Tape for 11/44

by wmaddox＠pacbell.net

I was up at Mike Quinn's on Saturday, and inquired about classic computers. After mentioning the PDP-11 by name, the guy there (Maurice) pointed me to an 11/44 he had in the back. The racks were already spoken for, and the contents had been pulled out and were sitting face-down on the floor. There was an 11/44 CPU, two RA-81 disk drives, and a 9-track tape drive, a TU-80 or TU-81, I believe. He was willing to let it go pretty cheap, $100 for the CPU and RA-81s, or $50 for the CPU. He thought the motors in the tape drive would sell for $25 each, so he wanted at least $50 for that. Seeing the lack of respect this poor old machine was getting (dumped on the floor to salvage the rack), and having some space in my trunk, I snapped up the CPU without much further thought. I figure a collector should have a shot at those drives before Quinn's sells them to a scrapper or someone who wants to strip them for parts. I don't have the space for them, nor enough interest in the later 11's to justify renting any more on their account. I could possibly be talked out of the CPU. I'd certainly take a smaller Q-bus '11 in trade. Heck, a convincing promise of a good home with some happy peripherals to talk to and reimbursement of the $50 I spent would probably do. :) --Bill

19 years, 8 months

logic rack?

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj(a)cfl.rr.com> ---snip--- However I am going to call them and tell them again >not to do anything with the rack and to save it for me. > > Joe Hi Joe It would be best to have all the cards pulled. This would minimize electrolysis if the connectors get wet. It sure sounds like it is a control unit or possibly even a processor unit for something. Dwight

19 years, 8 months

logic rack?

by rigdonj＠cfl.rr.com

I got a call from a scrap place today and I made a quick trip out to see what they had before the hurricane hits (it's due to cross DIRECTLY over the place's location so I don't expect the stuff to be there come Sunday AM since most of the stuff is out in the open). Got some DEC core memory so the trip was worth it. One of the things that I found was a "Logic Rack" made by (somebody) Research & (something). Sorry to be vague about the name but I was in a hell of a rush. Anyway it said that they were a division of XEBEC. The rack was ABOUT 8" or 10" thick and ABOUT 32" wide and ABOUT seven foot tall and had HUNDREDS of small circuit cards that plugged into it. None of the ones that I saw had ICs, just glass diodes, trqnsistors and resistors. The cards are 4" long and 2 3/16" wide with a 16 position CINCH contact on one end. The transistors that I looked at were all date coded 1969 but I saw what looked like it might have been a date on the rack that said 1973. Anybody know what this is? Joe

19 years, 8 months

classiccmp mailserver issue

by jwest＠classiccmp.org

The classiccmp server coughed last night, apparently around 2am. I didn't notice it till about 8am, and couldn't get to it to work on it till about 10:30am. It would appear that S.M.A.R.T triggered again, claiming the 160gb drive is failing. I'm not sure I believe it, but really don't want to take the chance either. I may well finally have to go shopping for a 160+gb drive. Anyways, wanted to let folks know there was an outtage in that time frame, if you didn't notice it already :) Jay West

19 years, 8 months

National Multiplex data cassette tape drive

by dwight.elvey＠amd.com

>From: "Tom Jennings" <tomj(a)wps.com> > >THe worst part -- the motor had a trimpot in series with it, and that >was the sole motor speed control -- and! -- tapes written at one speed >adjustment could not be read at another speed! > >Of course I turned the pot, my fault. But just tapping it was enough. It >was total crap. > Hi Most of these motors used an internal centrifugal speed governor. These were designed to work within some span of input voltage. I would guess that the pot was to drop the voltage to be within this range. If one was to adjust the pot, there should be a range of adjustment that the speed ( with load ) was relatively constant. One would adjust the pot to be safely within this span. Dwight

19 years, 8 months

iris 3030 on ebay

by aek＠spies.com

1) Why do the IRISes look that different on their back sides? -- Looks like they were trying to increase airflow. The 24xx's were solid black on the back, with only the upper area above the I/O panels for air exit. Most of the boxes that I remember had the I/O expansion panel on the left like the 3030 in the auction.

19 years, 8 months

rodent nests

by rich_bramante＠yahoo.com

So the good news is I've stumbled upon a Frankin Ace 1000 and a TRS-80 Model I with EI unit, 2 machines which I've been looking to acquire. Better yet, both are FREE! The bad news: some sort of rodent(s) decided that the shells would make nice homes and built nests in them. I popped open tha Ace, haven't had the heart to check out the inside of the EI yet. Most of what was in the Ace was bedding and shells from eaten nuts. These came out easy enough. All wiring seems to be intact and uneaten (the back of the case did have its card slots widened by rodent teeth however -- not a big deal). There wasn't really any droppings as I imagined there would be, but there is a brown film that is on much of the motherboard. What is this (urine, oils from their fur, some other sort of bodily excretion) and is there anyway to clean these systems and try to recover them? __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail

19 years, 8 months

iris 3030 on ebay

by aek＠spies.com

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5718617192 someone on the east coast should give this a home. looks to be a well configured system.

19 years, 8 months

John Titor's computer on sale in ebay

by ron.hudson＠sbcglobal.net

Here's the link... Lots of internal pictures.. http://cgi.ebay.com/ws/eBayISAPI.dll? ViewItem&category=1247&item=5120020116&rd=1 Anyone have an APL for my Mac SE? I used to have one when I had an SE.

19 years, 8 months

SMTP Relays...

by zmerch＠30below.com

Rumor has it that David V. Corbin may have mentioned these words: >[snip] >It also makes it more difficult for me to service over 500 clients who have >Exchange Server Hosted on my Denver based servers. [Please NO blasting of MS >products in response to this thread <g>] Does that mean it's still OK to blast *you* for using M$ products??? ;-) ;-PPPPPPPPPP Laterz, Roger "Merch" Merchberger -- Roger "Merch" Merchberger --- sysadmin, Iceberg Computers Recycling is good, right??? Randomization is better!!! If at first you don't succeed, nuclear warhead disarmament should *not* be your first career choice.

19 years, 8 months

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test-drb September 2004