test-drb September 2008

test-drb@ccmp.vtda.org

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Adaptec 2740A EISA (SE, no floppy) needs home

by jpeterson＠chinalake.com

2740A EISA, SE, non-floppy, free for the cost of shipping from US/01888 Cheers, Jim

15 years, 11 months

SCSI drives, SCA adapters, DEC Serverworks Mgr 3.2/3.3 CD & Doc need homes

by jpeterson＠chinalake.com

Free for the cost of shipping from US/Boston 01888 - ST3600N 500 GB Apple branded - (2) Quantum Viking 2275W 2.2 G Wide SCSI drives - SCA adapters w/ power and ID jumpers (1) SCA F-68 pin F w/ term resistors (1) SCA F-68 pin F w/o term (1) SCA F-50 pin narrow and 68 wide F - Plextor PX-43CE SCSI CD Sept 1995 Internal Uses caddies which I am out of - Dayna Apple Easynet 10 base-T adapter - Dec HiNote VP500 User's Guide (software probably around too) - Dec Serverworks Manager Overview and Install Guide (1/3" think) with CDs for 3.2 and 3.3 (Jan and April 1998) Cheers Jim

15 years, 11 months

wang 1220 photos & info

by frustum＠pacbell.net

About three weeks ago I asked whether a shipping quote I received was reasonable or not. The item arrived today, so I figured I'd tell how the story turned out. Bradley Slavik had a Wang 1220 that he wanted to give up to get back some room. He kindly gave me the machine, and even dropped it off at my sister's house. Then I had to find a way to get it from Chicago to Austin. Background: Wang shipped the first dedicated word processor in 1971, the Wang 1200. The one I received is a slightly later model. I received two suggestions for shippers: Craters & Freighters (I already knew about them) and Novas (gonovas.com). Both gave similar quotes, but this particular Novas office just made a bad impression. They would say they'd call back that afternoon, and then wouldn't, and I'd call them the next day, and they'd say, Oh, sorry, that was bad and I rarely do that. Once is understandable, but three times in a row doesn't make a good impression. So Craters and Freighters it was. They picked it up two Fridays ago, within 24 hours of me giving them the business. The following Tuesday they said it was crated and ready for shipment. Last Friday I got a call from the subcontracted shipper that they were in Texas and would deliver it today, Monday. They gave me a 3 hour window and delivered it in that window. The box was in good shape. Once I opened it I could see that the shipping container was well made and I had gotten my money's worth. After half an hour of pulling staples and folding large sheets of cardboard, I had my very own Wang 1220 word processor. It was born on Aug 1, 1973, making it a bit more than 35 years old. It cost $495 for the pick up, boxing, and delivery. While it has been rare for me to spend that much on any vintage equipment, I am happy with the way it worked out. I've posted a few photos, in small (50kB 640x480) and large (1MB 2300x1700). Eventually I'll have a web site, but this will have to do for now. http://www.thebattles.net/wang/1220/small http://www.thebattles.net/wang/1220/large Things to note, in no particular order: The 1220 is the second generation 1200. The first came out in 1971. Both systems used modified Selectrics for keying and printing. There is a famous story where Wang alleges that IBM purposely sabotaged the OEM'd Selectrics to damage Wang's reputation with customers. In any event, the 1200's were notoriously unreliable. A few years later, Wang took another shot at it with an 8080 & CRT based word processor system, which ended up making Wang quite profitable for a time. the "05-rear.jpg" photo shows the microcode program store. The microword is 44b wide, and the ALU is bit serial. The whole electronics package is on a hinged frame. You can see only the rear of the backplane the photo, but there are a handful of cards on the other side implementing the CPU. The microcode store is 2K words of 44b. The board holding the microcode also has a grid where diodes can be soldered in to allow patching up to three arbitrary words of the ROM. Later on they introduced a board that allowed for 12 patched words. There is no way to load software into the machine -- it only runs what is in its ROMs. The CPU's memory is all of 256 bytes. 100 bytes are used to hold the current record being edited. The rest contains variables state that the microprogram uses to track things. "04-hood.jpg" shows that the noise damping foam has all disintegrated. The first thing I did was to get a putty knife and scrape it all into the garbage. This hood sits over the Selectric, but the Plexiglas hinges up and out of the way for use. There are two cassette decks on top. they are used in various ways, but one common way was to have the source version on one tape and as the typist makes corrections, the edited copy goes out to the other deck. the system allowed editing in place, but as the tape format consists of nothing but a train of fixed length 100 byte data blocks, in-place edits could neither insert nor delete lines. Another use was to have a template document in one deck and a list of contacts in the second deck, and the machine would print out form letters customized by the contents of the second tape. The 09-warning.jpg sticker shows that the older machines used rope ROMs. This is a technology whereby word lines were snaked through 44 toroid cores. By having a given word line wind a given core or not it would be sensed as a 0 or 1. This model uses mask ROMs. Luckily, I happen to have schematics for this machine. A few years back I was loaned a box of schematics to scan for the Wang 2200, but it also contained schematics for some other Wang products. At the time I had no thought of having a 1200 (I didn't even know any still existed), but now I'm glad I went and scanned everything. Who knows, maybe some day I'll run out of things that need to be done to my existing emulators and I'll write one for the 1220. It would be the world's most boring emulator, though. My office now has a strong aroma of whatever oils and greases that were applied to the Selectric probably 20 years ago. I'm amazed how volatile it still is. Finally, my 2200 website has a 6 page color brochure touting the amazing features of the Wang 1200 family (6 pages, 1.5 MB): http://wang2200.org/docs/Wang%20Word%20Processing.pdf The collage of very early 70s people on the cover of the brochure is worth the price of the download.

15 years, 11 months

Mac SE Flyback!

by julianskidmore＠yahoo.com

Hi Jos, > > ..the Mac's good, but the flyback Transformer burnt out a while > > back and I was wondering what would be a suitable replacement. > I just discarded a Mac plus analog board, interested ? > You can have it, or just the flyback, for the cost of shipping from > Switzerland. That's very kind of you, if you email me on my own address: mailto:julianskidmore at yahoo.com we'll sort out payment. I don't mind if you ship the whole analog board as I imagine it'll take quite a bit of effort to pull the Flyback off it. Not sure how compatible SE and Plus flybacks are (I don't think the Plusses had 'bleeders'), but it's my best (and only) offer! -cheers from julz @P

15 years, 11 months

Any TI99 Folks out there?

by snhirsch＠gmail.com

I have just added a TI expansion unit to my collection. It came with all the proper internal modules, but there's a possibility that the Disk Management plug-in cartridge (firmware) is missing. If the person I bought it from is unable to find it, is there any workaround to not having this? Does anyone have a spare one to sell? I'm reasonably new to the TI system, so any advice or input would be greatly appreciated! Also needed: The "A" and "B" diskettes that accompanied the Editor/Assembler package. I do have the firmware cartridge and docs for this. Steve --

15 years, 11 months

Datasheet for Intel 1103 DRAM?

by derschjo＠mail.msu.edu

Anyone have a copy of this in digital format? Can't find this on the 'net. Trying to work out what voltages the power supply in the ND-821 is supposed to put out. From testing, it looks like 5v, 18v, and 24v. Knowing what the RAM requires will help nail this down, since it's powered separately from the main logic. Thanks, Josh

15 years, 11 months

Nuclear Data ND-812 info...

by aek＠bitsavers.org

> Anyone know anything else about these things? Nuclear Data was a Chicago company that built various bits of instrumentation for the nuclear industry. I have heard they were the company whose computers were at Three Mile Island, but have no documentation on that. The ND-812 front panel is light/dark green as well. I have one in poor condition. The CPU is wire wrapped. There are PCBs for the core memory system. Bunker-Ramo used them in a point of sale system for supermarkets, mostly in the Chicago area. Parts for them would show up at hamfests in the mid-late 70's there, which was the first time I saw one.

15 years, 11 months

Old parts

by nico＠farumdata.dk

Hi all During a minor clean-up, I found some parts looking for a good home. Available for the cost of the postage from Denmark. The parts come from an mid-80 Acer IBM XT compatible - PC/500 cpu card (8088-2) - PC/500 I/O card with printer, comport, floppy controller - EGA card - LAN card for coax + 15-pin subd I think I also have a harddisc controller somewhere. - 1 backplane All cards are 8 bit ISA. Nico

15 years, 11 months

EISA cfg file needed

by teoz＠neo.rr.com

Looking for an EISA config file !INT3132.CFG if anyone has it. Thanks, TZ

15 years, 11 months

Off-Topic Fluke 4250 info wanted

by g.rosi＠tiscalinet.it

Dear Jonn, i'm an Italian engeneer and I buy some mounth ago a lot of fluke 4250 voltage source. Unfortunately i'm not able to program because i not have the message list....i tried be with no result. Have you any information abaut? If yes, can you post me the list? Thanks in advance. Guido Rosi

15 years, 11 months

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test-drb September 2008