test-drb September 2004

test-drb@ccmp.vtda.org

268 participants
648 discussions

by aek＠spies.com

Anyone care to give a thumbnail sketch of what sampling rates would be necessary to digitize the signals on recording media (3 1/2", 5 1/4", 8" floppy, hard disks, drums, disk packs, etc.) at sufficient rates to preserve the encoding for post-processing in other tools? -- Paul Pierce is using this technique to recover data from 7 track tape. The only problem I see is people on this list underestimate the costs involved in putting something together that works. For the most part, analog level recovery isn't necessary. Modern digital data separators will recover most media, which reduces the data rates substantially. http://www.piercefuller.com/collect/proj.html

20 years, 3 months

tan ADM3A+ with Zilog plate

by Innfogra＠aol.com

In a message dated 9/15/04 10:46:24 AM Pacific Daylight Time, rich_bramante(a)yahoo.com writes: I've found a tan LSI AMD3A+ OEM'd by Zilog (has the Zilog name/logo on the front faceplate). Never seen one of these before. What did it go to? Any info? Probably a Zilog Development system of the late 70s or early 80s. We got several with Intel labels in the 90s in Portland. I think ADM OEM them to anyone who wanted their own colors. You might look in the EPROMs, they might be custom or not..... I don't think the Intels were any different other than the color. Paxton Astoria, OR

20 years, 3 months

Osborne 1

by ddl-cctech＠danlan.com

Anybody want one? Dan Lanciani ddl(a)danlan.*com

20 years, 3 months

AIM-65 black plastic cases for give-away in So Cal.

by tosteve＠yahoo.com

Hello world, I have two AIM-65 black plastic cases for give-away. You pay shipping only. And also a Snickers bar. Steve located near Santa Ana CA. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail

20 years, 3 months

today's score : RK06 & RK07 drive

by edward＠groenenberg.net

Today was a good day for me, I picked up 2 RK drives, a RK06 and a RK07. The airfilter of the RK06 was changed in 2000, so it seems that this drive has been in use not that long ago. The RK07 has a filter a little older, but looks also clean (as are the drives internally). Ed -- edward(a)groenenberg.net | Collector of PDP-11's. http://www.groenenberg.net | Politici zijn vieze oplichters. Unix Lives! M$ Windows is crap. '97 TL1000S

20 years, 3 months

ASR-33 repair parts

by chd_1＠nktelco.net

Specifically a print cylinder and a new pad for the print hammer. Does anyone know of a source for these two items? The pad on the print hammer has disintegrated and the underlying metal has been pounding on the print cylinder. This has caused some of the letters images to be deformed so that only the top half of the letter prints. A new print cylinder would be virtually impossible to fabricate, so I need to find a new or used one. I can try to replace the pad with something I have, because I don't want to damage the cylinder any more than it already is. What was the original material: rubber, leather? Anyone tried this before? Ribbons are still commonly available though, I bought one at Staples for US$2.97 this afternoon. -chuck

20 years, 3 months

Tek 8560

by aek＠spies.com

So, I gather it's some PDP 11/23 like thing. Are these worthwhile to gather up? -- I have the service manual on line. There are differing variants of processor and disc (5" or 8") Documentation and esp the diagnostic floppy would be a GOOD THING if they could be found. The earlier 8550 and DOS50 on floppy would also be useful.

20 years, 3 months

*** Ideas needed for developing interactive displays....

by esharpe＠uswest.net

Most of our displays here at the museum are pretty static..... we are looking for ideas on introducing some interactive component... ideas folks? Thanks Ed Sharpe archivist for SMECC Please check our web site at http://www.smecc.org to see other engineering fields, communications and computation stuff we buy, and by all means when in Arizona drop in and see us. address: coury house / smecc 5802 w palmaire ave glendale az 85301

20 years, 3 months

TU 10

by aek＠spies.com

Thomas> Tom, Will look but I don't think we have brakets, but I had a Thomas> come question for you. Do you have an operating manual for Thomas> the TU 10? Do you know where I might find one? -- I have TU10 docs scanned. Will work on getting them up on bitsavers.

20 years, 3 months

MORE PDP hardware available, different deal... UK this time

by jwest＠classiccmp.org

trying to find a home for the following DEC bits: DEC microPDP-11/23 (Fully working) 512 kWord memory, 2 x RX50 floppy, 1 x 40 MB hard disk Boots RSX-11M, with full set of RSX-11M manuals DEC Rainbow 100+ (Fully working) 512 kB RAM, 2 x RX50 floppy, 1 x 10 MB hard disk (RAM & graphics expansion board fitted.) DEC colour monitor, 2 keyboards. Boots CP/M & MSDOS, DEC VT240 terminal (Not working - reason unknown) With manuals, keyboards & small green screen monitor We are currently looking to dispose of these because we no longer have space for them. If you know of anyone who may be interested in the kit AND is prepared to arrange for collection from the North West of the United Kingdom we would be glad to hear from them. --- [This E-mail scanned for viruses by Declude Virus]

20 years, 3 months

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test-drb September 2004