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by Just Kant

I don't even have an APC anymore. But since this thing is eyeing me menacingly I figured I'd put the request out. Butler Flats Associates dual external 5 1/4" accoutrement, has it's own controller card (based on wd1771/1772 iirc). Contact me off list if you have these. Much appreciated. Sent with [Proton Mail](https://proton.me/) secure email.

2 years, 3 months

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ADM3a screen rot.

by William Sudbrink

A quick note on ADM3a screen rot... my vintage collection resides in a cool (60-72 degrees F) dry basement. My "pride and joy" ADM3a (I have several) was just starting to show a few bubbles at the corners last September. I was pulling out some parts units on Friday and noticed that one had a much better screen than I remembered. Thinking that I might swap screens, I took a close look at "PnJ" and discovered to my horror that most of the lower half of the screen had "melted". "PnJ" was on a shelf, below eye level, nowhere near a vent or other source of heat. I was so annoyed that I immediately started cleaning/repair without taking any pictures (sorry). Fortunately, there does not appear to be any corrosion from the "goo". I completely desoldered and removed the keyboard assembly to get all of the crud out of (and out from under) it. The mainboard is a fully socketed example and the crud is down in several of the sockets. I'm still working on that. Anyway, the take away is don't assume (like I did) that the ruined ADM3as you see are the result of temperature extremes. It can happen anywhere. Keep a close eye on yours if you have one. Bill S. -- This email has been checked for viruses by Avast antivirus software. www.avast.com

2 years, 3 months

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11/15, 11/20 systems and parts, more

by Paul Anderson

I am working on a deal which includes several PDP11/15 or 20s. I will be looking at them next week and hope to get more details. I will look for exact model numbers and configuration.At least 2 of them have non DEC silkscreens on the front panel. Also a selection of 11/05 and 11/10 including 5 1/4 box, BA11-D, and BA11-K units. If you are interested in a box or parts please email me off list. Thanks, Paul

2 years, 3 months

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The MAC at 40

by Murray McCullough

The Apple Mac, 40 years old, came from Xerox PARC’s GUI and Apple’s LISA. Not sure that it really changed computing though! Financially it didn't help Apple until after 1997 and Gate's investment. Happy computing! Murray 🙂

2 years, 3 months

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Looking for 1970s OAK keyboard switches...

by John Robertson

I've been hunting for a while now for OAK PCB mount keyboard switches that I can't find a part number for. I've attached a product listing for the switch that shows it pretty well. DPST-NO preferred. Only $0.40 in the early '70s! Any quantity considered... Thanks! John :-#)# -- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"

2 years, 3 months

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IBM 38 on Facebook Marketplace

by Anders Nelson

I know nothing of what they're referring to, but just in case someone is interested: https://www.facebook.com/marketplace/item/1033559851065048 -- Anders Nelson www.andersknelson.com

2 years, 3 months

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WTB: Keyboard for IBM 3290-1 terminal.

by Andrew Back

Hello, I'm looking for a keyboard to use with an IBM 3290-1 terminal (DB25 connector). IBM part number 6016730 or similar. Regards, Andrew

2 years, 3 months

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Re: Can anyone (pref in USA) recover data from an old RK05 disk pack?

by Graham Toal

On Tue, Jan 23, 2024 at 3:05 PM Wayne S <wayne.sudol(a)hotmail.com> wrote: > Can’t the pack be read and copied on the system it’s currently on? > It's not been near a computer since 1979. It's currently in Fred van Kempen's storage. Graham

2 years, 3 months

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Can anyone (pref in USA) recover data from an old RK05 disk pack?

by Graham Toal

In 1979, the Dutch team of Harry Whitfield's students writing the Groningen University Time Sharing O/S called GUTS sent an RK05 to Edinburgh for us to try out on a PDP11/60 we had access to in Steven Salter's Wavepower project lab. Ian Young spun it up and learned how to use it. After some years of being out on loan, we hope to have the disk pack returned to us this year, so I'm now looking for someone reliable who can recover very old disk packs, preferably in the USA where we can ship the pack to them, without having to go through customs and risk damage in an inspection (I remember those scary 1970's diagrams showing the comparative size of a smoke particle next to the gap between the heads and the disk surface!). To minimize the risk of damage during shipping, I'm hoping that the person who currently has it can ship it directly to whomever we can find who can read it for us, rather than to me and then to that person. I'll be happy with a raw disk read, but the GUTS file format should be backwards compatible with RT11 files so if the disk is readable I don't think we'll have trouble getting the data off, especially if the person with a pdp11 runs RT11 on it. If we can get a disk image however I think we could get it running again under emulation. Please contact me at gtoal(a)gtoal.com if you know of anyone in the US who might be able to read this disk pack, or contact them and ask them to contact me if they're interested. Thanks, Graham <gtoal(a)gtoal.com> PS We have the 3 GUTS manuals in pdf format, but that's the only GUTS documentation that we know of which survived: https://gtoal.com/history.dcs.ed.ac.uk/archive/scans/guts/red.pdf https://gtoal.com/history.dcs.ed.ac.uk/archive/scans/guts/orange.pdf https://gtoal.com/history.dcs.ed.ac.uk/archive/scans/guts/yellow.pdf

2 years, 3 months

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FASTBACK Help how to recover files stored in this backup format,?

by ED SHARPE

FASTBACK bak up ptogrsm...Help how to recover files stored in this backup format,? Back when the museum was next to computer exchange Inc. Pre '94. We put out a journal once a year Over 100 pages tightly leaded would like to access files and reprint. Would need Pagemaker 3 orveoukd data files be upward compatible with indesign by adob? Thanks Ed Sharpe archivist for SMECC MUSEUM PROJECT Glendale AZ Sent from AOL on Android

2 years, 3 months

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