test-drb October 2019

test-drb@ccmp.vtda.org

137 participants
118 discussions

Systems Engineering Laboratories SEL 810a Mainframe For Sale

by tsraguso＠gmail.com

WAREHOUSE LIQUIDATION UPDATE: I am taking offers on an SEL 810a mainframe computer. It includes three cabinets, a Teletype Model 33 ASR, as well as a vintage wooden box filled with spare cards. This machine was installed in 1969 and retired in 2006. It is in excellent condition. It has a front panel with blinkenlights, and one of the cabinets has a Nixie tube numerical display. I have shared pictures of the main cabinet and the spare parts box at the following link. https://photos.app.goo.gl/Ebc3Aj5zmgXjFosR7 Buyer must pick up all three cabinets and the Teletype. Best offer will be accepted. Thomas Raguso

4 years, 7 months

DIBOL manual

by jnc＠mercury.lcs.mit.edu

> From: Chuck Guzis > Calling DIBOL "COBOL-like" is stretching things quite a bit. OK, so I'll change it to "vaguely COBOL-like"... :-) Seriously, though, there some high-level similarities, and not just the purpose... Noel

4 years, 7 months

Eyring PDOS - paging Camiel Vanderhoeven

by rshepprd＠gmail.com

I was running it on a M68k VMEbus. Version PDOS/68020 R3.3a 20-Nov-87. I believe BitSavers or archive.org has some reference material Richard Sent from Mail for Windows 10

4 years, 7 months

Eyring PDOS - paging Camiel Vanderhoeven

by mattislind＠gmail.com

I have a odd TMS9900 machine with floppy drives that would be interesting to get an operating system runnig on. The Eyring institute PDOS looks interesting and I have found a page describing it. https://www.vaxbarn.com/index.php/other-bits/105%20-pdos Unfortunately none of the download links works. I sent a few mails to Camiel but it seems like they might have ended up in the garbage folder so I am trying this public mail instead and hope that it gets through! I really appreciate if the links could be fixed so that I could download a copy. And source code for the boot ROM would be nice. Or is there someone else that have a copy of the manuals and the binaries? Thanks in advance! /Mattis

4 years, 7 months

Wanted: 360k floppy mechs

by technoid6502＠gmail.com

I am in the middle of refurbishing two drive controllers, a Percom At88 with doubler board, and a Percom At-88SPD. Neither has mechs and my search for them has been frustrating. The mechs are like hens teeth online, and when I find them they are insanely expensive. I know there's gotta be a pile of them out there just rusting away. I'd like to give as many as four a good home. Mechs I can use are, in order of desireability: 5.25" 40 track, double -sided, 80-track double-sided, 40 track single-sided. 3.5" mechs (preferably with adapters for 5.25" mounting, have got to have jumpers for drive number selection. Most 1.44's will work on these controllers as 720k drives if the right media is used, or, better, if the drive has jumpers to force the density select. I hate to bother with such a petty thing, but I could sure use some help getting these things running. They are nice drives. I repaired one already, and got it driving a broken MDD210, the only mech I have, but that is so flaky it is of no use other than to let me know my repairs have got the controller working again. Best, Jeff

4 years, 7 months

General Automation SPC 16 on eBay

by bobalan＠sbcglobal.net

There's a cheap General Automation SPC 16/45 on eBay that someone needs to get. It's for pickup only in Royal Oak, MI otherwise I would go for it. Includes a disk drive. Looks like it needs to be gone in a week. See: https://www.ebay.com/itm/General-Automation-1972-SPH-45-16-Minicomputer-Con… Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org

4 years, 7 months

IBM MST extender cards

by aek＠bitsavers.org

https://www.ebay.com/itm/352810055470 are these extender cards for IBM MST modules?

4 years, 7 months

Mystery chip SCM44506L

by wrm＠dW.co.za

> >Very likely a semi custom or custom memory device, due to the prefix. Armed with that and the fact that pin 1 connects to the leadframe I figured maybe it's something like the 6830 Mikbug prom -- 0V on 1, 5V on 12, data on the left, address on the right. Tried reading it like that (for all 16 combinations of chip selects) but 0xFF throughout. So I popped the lid, stuck it under a microscope. The chip says "MCM6816" which is in fact a 1k ROM. Anyone have more information on the 6816 ROM? Thanks W

4 years, 7 months

DEC Rainbow Univation Docs / Software

by imp＠bsdimp.com

This is a bit of a hail mary... I recently won a Univation Intenral Hard Disk System for the DEC Rainbow 100 card, memory and drive. But it came with the wrong docs and no diskettes. Any chance that anybody has anything in this area squirreled away somewhere? Warner

4 years, 7 months

Free AS400 in UK (E Kent CT91RP)

by billdegnan＠gmail.com

Hello, Maybe someone in the UK would like an AS400..Got the following through vintagecomputer.net contact form: ".. I have as400 fc5070 exp unit v.large & brocade silkworm 'ibm director'netswitch,new,v.large,needing pick up from uk,s.e.kent, ct91rp,anyone who wishes too use,app center full of archives etc, no longer can store them,up for grabs,email pref.." Send me your contact info (email preferred) and I will forward to the person. I don't know the guy, no affiliation, never been to Kent. Bill Degnan

4 years, 7 months

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test-drb October 2019