test-drb July 2005

test-drb@ccmp.vtda.org

257 participants
628 discussions

by aek＠bitsavers.org

John's posting about the Unibus interface reminded me that something to watch for are the card and interface manuals for CAMAC crates. CAMAC was very popular in physics labs. There are lots of modules and crates around, but, as usual, no one saved the manuals.

19 years, 5 months

11/34a help

by aek＠bitsavers.org

> Jorway Model 411 CAMAC? Looks like a Massbus cable going into it. That would be a CAMAC (IEEE 585) crate to Unibus interface. CAMAC docs are much less common than the modules or interfaces, unfortunately.

19 years, 5 months

Repairing IC pins

by dwight.elvey＠amd.com

Hi What kind of package are we talking about? Plastic can be cut back by about 1/32" to allow connecting a pin from a scrap IC. ceramic is a little tougher. If the pin is one of those iron cored pins, you may not be able to get deep enough to get a non-corroded surface to solder to. Even ceramics can be carefully solders to and a small amount of hard epoxy applied to keep the strain off the solder joint that will be quite small ( epoxy like JB Weld is hard most clear epoxies are too flexible ). I have a number of RAM IC that are gradually failing because they have the iron cored pins. I guess these were cheaper but electrolysis between the plating and the iron rots them out from the inside making the pin very fragile. Dwight >From: "Philip Pemberton" <philpem at dsl.pipex.com> > >Hi folks, > Does anyone know of a way to repair IC pins that have been broken off at >the point where they leave the IC casing? I've got a couple of chips with >missing pins here and was just wondering if it was possible... > >Thanks. >-- >Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, >philpem at philpem.me.uk | ViewFinder, 10BaseT Ethernet, 2-slice, >http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI >... Anything not nailed down is a cat's toy >

19 years, 5 months

New to list -- Many Issues -- Many Parts Available.

by maurice.smulders＠gmail.com

Pat Fitzpatrick wrote: > As for the HP64000s, the consoles are ok, but the disk drive drowned. From a quick search, I'm not real optimistic about finding another HPIB disk drive and I'm not too excited about plunging into this one to try and fix him (he was running when the waters came and he smells very bad). Has anyone ever taught a PC (for example) with a GPIB card to think it's a CS80 Drive?? Does anyone have a spare disk gathering dust? Failing that, does anyone (besides me) still use these things? The consoles are probably too heavy to ship, but I have lots of cards, software, manuals etc in working order if anyone needs them. > > I started a project on Sourceforge (softcs80) to do that. I found the specs on bitsavers (Thanks Al) and they don't look to terribly bad... If only a PCI GPIB card would be a bit cheaper... Kind regards, Maurice

19 years, 5 months

Grid 1520

by pmgroup＠telus.net

Hi Guys Just aquired a gridcase 1520, how do I remove the battery, and where might I find a battery? Frank D. Senior Projects Coordinator Perspective Management Group 33 Hazelton Avenue, Suite 110 Toronto, Ontario M5R 2E3 Tel: 416.208.0755 pmgroup at telus.net CONFIDENTIATILITY CONCERN: This message is intended only for use of the individual or entity to which it has been addressed and may contain information that is priveleged and confidential. If you are not the intended recipient, you are hereby notified that any dissemination, distrubution or copying of this communication is strictly prohibited. If this communication has been received in error, respond immediately by returning e-mail, and delete all copies of this material.

19 years, 5 months

Found in a spam... (ontopic, really!!!)

by zmerch＠30below.com

Spammers are getting pretty crazy trying to fool the word & bayesian filters, when you see stuff like this in a spam for "c1 at l1s t at bs".. "Someday we'll discover a dinosaur nest in Arizona and right next to the fossil will be a stone-etched PRIMOS manual. It was probably PRIMOS that caused the dinosaurs to die off in the first place. -- Ari Rapkin's uvacs quotes" (sorry for the funky wordwrap -- my xterm that runs mutt is 100chrs wide...) Oddly enough, I've gotten a few decent jokes from spams lately, too... Whatta weird Friday, "Merch" -- Roger "Merch" Merchberger | "Profile, don't speculate." SysAdmin, Iceberg Computers | Daniel J. Bernstein zmerch at 30below.com |

19 years, 5 months

FS: 2 NEC APC's available outside of Boston

by rich_bramante＠yahoo.com

In case anyone is interested.... http://boston.craigslist.org/sys/86152795.html __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 5 months

Decitek Reader and Remix punch

by uban＠ubanproductions.com

Sounds like a nice system Ashley! --tom At 12:04 PM 7/22/2005 -0400, you wrote: >Today I obtained a Genrad 1797 programming station. It consists of a >PDP-8a, 3 RK05s, a Decitek paper tape reader, a Remix paper tape punch, >and a Genrad interface unit. Also with the system is a DecWriter III and >3 RK05 16 sector packs, as well as an alignment pack. > >I have not begun to study the system yet. Quick questions: > >1) The Decitek reader appears to have a serial (EIA / RS232) >interface. Can someone point me to some documentaion on how this might be >interfaced to a PDP-11? > >2) Same question as #1, but for the Remix paper tape punch > >3) What were these GenRad programming stations used for? > >4) What is the purpose of the GenRad 1795-3010 interface unit? > >BTW, the system looks to be in good condition and was said to be running >before it was decomssioned just a few months ago. Once I get a 30A >4-prong receptacle installed for it, I'll fire it up and see what it's all >about. There is a boot pack for it. > >Any help or pointers on where to find information on the Decitek reader, >Remix punch, and GenRad equipment in general would be greatly appreciated. > >Thanks, >Ashley

19 years, 5 months

New to list -- Many Issues -- Many Parts Available.

by Pat_Fitzpatrick＠pmc-sierra.com

Hi List, I've been a collector (and user) of obsolete computer systems for many years. This list looks like a great source of information. Anyhow... Until our basement flooded a couple of weeks ago, I had: IMSAI 8080 with NorthStar Disk, KSR33 Teletype and Lear-Siegler ADM3A Terminal A very strange home-built S-100 system Apple II plus with Pascal Language System Intel intellec 800 and MDS230 development systems Sun 3/160 Solaris (some version or other) HP64000 development systems with HP7912 disk HP9816 computer IBM PC and XT, 286, 386... (yeah, who cares) One thing I have learned form this experience is that computers do not, in general, swim well. Anyhow, I now have a whole lot of partially useful computers, boards, documentation, software etc. The only things I care deeply about are the IMSAI ('cause I've raised him from a pup) and the HP64000s (which I use as my logic analyzer and EPROM programmer -- among other things). The IMSAI box and the terminal are ok, but the disk drive (an SA400, I believe) and (worse) the box of floppies didn't make it. The drive might be salvageable, but I'm afraid the diskettes are toast. Does anyone out there have any 5-1/4 inch 10 sector (hard sectored) floppies? And a copy of the NorthStar DOS and BASIC that they'd like to sell/trade/etc? As for the HP64000s, the consoles are ok, but the disk drive drowned. From a quick search, I'm not real optimistic about finding another HPIB disk drive and I'm not too excited about plunging into this one to try and fix him (he was running when the waters came and he smells very bad). Has anyone ever taught a PC (for example) with a GPIB card to think it's a CS80 Drive?? Does anyone have a spare disk gathering dust? Failing that, does anyone (besides me) still use these things? The consoles are probably too heavy to ship, but I have lots of cards, software, manuals etc in working order if anyone needs them. As to the other stuff, some is good, some isn't but if anyone needs any parts, I might be able to help out. Pat Fitzpatrick

19 years, 5 months

RQDX3 manual?

by aek＠bitsavers.org

> Do anyone know if there is an RQDX3 manual on line? here is a scan from fiche http://www.bitsavers.org/pdf/dec/qbus/fiche/EK-RQDX3-UG-001_Nov85.pdf

19 years, 5 months

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test-drb July 2005