test-drb October 2005

test-drb@ccmp.vtda.org

264 participants
655 discussions

by Bob＠BRADLEE.ORG

On Sat, 29 Oct 2005 20:31:11 -0400, Bob Bradlee wrote: >>Where were you working at the time? >>Peace... Sridhar Circle aka CCS in Schaumburg Il. 1978-1980 We did Comdisco's referb and feature work before they set up their own shop. Have scope will travel. Bob

18 years, 7 months

Japanese computers

by ajp166＠bellatlantic.net

> >Subject: Re: Japanese computers > From: Pete Turnbull <pete at dunnington.plus.com> > Date: Sat, 29 Oct 2005 09:10:26 +0100 (BST) > To: "General Discussion: On-Topic and Off-Topic Posts"<cctalk at classiccmp.org> > >On Oct 28 2005, 22:32, Bob Bradlee wrote: >> Everything big IBM makes has built in casters. >> Leveling pads are only dropped once it is in place in the computer >room. >> >> Some times it takes a few people to push and navigate, but even a >370/168 would >> roll down the hall when the pads were lifted. > >Ditto for a few Amdahls and Fujitsus I've helped to move. > >-- >Pete Peter Turnbull > Network Manager > University of York Save for all the DEC stuff I've encountered. Casters and adjustable pads. Allison

18 years, 7 months

IBM PX and XT Power supplies

by terry＠terryking.us

IBM never released the schematics, even to internal IBM sites wanting them. Early on, we learned that there was a optoisolator that often died. There WERE aftermarket schematics available for about $40 in the mid-80's; I don't think I have any?? A friend still at IBM may.. I'll ask when I see him. The XT versions were a lot more reliable; I have 8 XT's that get turned on only once or twice a year, now, and I've never lost a power supply or system board. Regards, Terry King ...On The Mediterranean in Carthage, Tunisia terry at terryking.us

18 years, 7 months

QBUS MSCP SCSI project: can somebody help me about this bug?

by vax9000＠gmail.com

On 10/29/05, Zane H. Healy <healyzh at aracnet.com> wrote: > No idea on the problem you're having with the SCSI controller, > however, I think I can answer your VMS question. Since all you're > wanting to do is test your hardware, you should be able to simply > load VMS, and not actually need any License PAK's. It's only if you > wanted to actually use the machine to do something that you would > need the Licenses. > > Of course I'm not a Lawyer, and by doing this you might be violating > something, I'm simply looking at it from the technical side of things. Thank you! Please forget about the VMS part. I have got an solution. vax, 9000 > > Zane

18 years, 7 months

1981 London Computer Faire and Homebrew Computer Club stories

by swtpc6800＠comcast.net

In September of 1981 while in England I happened upon a computer show. I said I was with the Northwest Computer News and got a press pass. Our local computer club newsletter was a 12 page tabloid size newspaper. I interviewed many vendors and took notes. After a trip to England I talked with the editor and she wrote this story for the October 1981 issue. http://www.swtpc.com/mholley/MySystem/LondonComputerFaire.htm The Brits on this list can tell me if I got the story right. There will be an Homebrew Computer Club 30th Anniversary Retrospective at VCF 8.0. Here is my web page on my time at the Homebrew Computer Club. http://www.swtpc.com/mholley/Homebrew/Homebrew.htm Vintage Computer Festival 8.0 http://www.vintage.org/2005/main/ Michael Holley www.swtpc.com/mholley

18 years, 7 months

QBUS MSCP SCSI project: can somebody help me about this bug?

by vax9000＠gmail.com

It is the "machine check 10" bug. I composed a page at http://wiggum.4amlunch.net/~vax9000/mchkbug.html Thank you. vax, 9000

18 years, 7 months

Aladdin4D is trying to be opensource

by RMeenaks＠olf.com

They are still trying to sell it though, but through a community effort. Got $1,300 so far, but want $37,000 more http://www.openaladdin4d.com/ Ram

18 years, 7 months

IBM 5285

by f5inl＠wanadoo.fr

Dear Alan, As this topic is quite old, I 'm not sure you will really see my answer. Anyway, if you're still interested in this machine, I can give you help, as I'm the owner of a complete IBM 5280 system (ie IBM 5288 + two IBM 5285 + printer IBM 5222)with full disk systems and maintenance documentation. Let me first inform you that neither 5285 (nor 5281) are albe to work alone. When you start them up, they try to deal with the master controller unit (MCU) IBM 5288, on which is implemented the system. If it can't dialog with the 5288, you'll get only three lines of characters on the screen, which are a kind of autotest. As far as the floppy drives are concerned, it's quite the same. Indeed, these floppy are not part of the 5285 machine, but are extensions of the MCU 5288 on your local working station. So, when you insert a disk inside, it's absolutely normal that you don't have any answer on your display, as once again the 5285 is trying to send the data read on the floppy diskette to the 5288 system. Owning a 5285 / 5281 alone has no really interest, as it's neither a dumb terminal and won't be useful. But it's a beautiful old machine. All this system called 5280 is dated from 1981. Mine has been working beetween 1982 - 1987 night and day. Now I only make it work when a friend of mine want's to see it working, as it's really worth seeing. Unfortunately, I've broken a keyboard and noy I've only one working station instead of two, and my printer has no more ink ribbon :-( Best regards. Fred (from southern France )

18 years, 7 months

DEC DSSI thingy

by tpeters＠mixcom.com

Hey, what's this thing? Some alpha board? It has Digital logo all over, pen scribbles on the outside of the box saying "Single DSSI controller for 4000's" and the barcodes read "54-22444-01" "B01" and "KA344DFR04" Inside is static bag containing 4 inch by 3.75 inch pc board. The big chip (surface mount) with a zillion pins has a 1"x1" two-fin heat sink. There's another two small chips and what looks like mebbe a 16.000000 mhz clock/osc. Three address jumpers marked "4" "2" "1" Connector on top looks like 96 to 100 pins, shaped like a scsi SCA but longer. Connector on card edge is 50 pin blue with locking ears. Silk screen reads "DSSI Daughter card" Back 'o screws and bracket in the box too. Anybody want it? Any reasonable offer accepted, meaning offer me more than I paid for it (not much) plus shipping and it's yours. [Commentary] War talk by men who have been in a war is always interesting, whereas moon talk by a poet who has not been in the moon is likely to be dull. --Twain --... ...-- -.. . -. ----. --.- --.- -... tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio) "HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters 43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531

18 years, 7 months

ASR32 ??

by terry＠terryking.us

At 06:29 AM 10/29/2005 -0500, you wrote: >Is anyone interested in a Teletype ASR32 with paper and paper tape? Really a 32 not 33?? 32 is 5-bit Baudot, as I recall. Regards, Terry King ...On The Mediterranean in Carthage, Tunisia terry at terryking.us

18 years, 7 months

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test-drb October 2005