Gallery, Projects and General > How do I??

Computer Card Identification Help Please

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PekkaNF:
Ah. era of ISA, EISA, VESA....

http://slideplayer.com/slide/6944905/24/images/9/Variety+of+Busses+Bus+Type+Bus+Width+Bus+Speed+MB/sec.jpg

Pekka

seadog:
I remember the Intel 8080/8081 very well. They were the basis of the hotel booking systems that I used to service in the mid 80s. Unfortunately I long ago threw all of the documantation I had for these boards.

The systems also had 16kB core memory boards in the same format.

gerritv:
The full Multibus spec: http://www.nj7p.org/Manuals/PDFs/Intel/9800683D.pdf

I have several Heurikon 68K boards if anyone is interested. With schematics and manuals.
http://hobbies.psgv.ca/computers/heurikon-hk68k-multibus-sbc/

AyCad is still in business, although their site doesn't have a photo of your pcb. http://aycad.com

vtsteam:
Thanks Ade, Andrew, Pekka, seadog, gerritv!  :beer: :beer: I think you guys hit it because not only does the (gerritv) spec show 86 contacts, but also a location for the 60 contact auxiliary card connector. that I found on two of the cards.

Earlier today I had found another 86 pin spec backplane type called CAMAC -- used in particle physics research. And this is actually for an old 80's era Leybold thin film metal plasma coating machine. So I thought well, maybe that's a match.

But I think the multi-bus looks really good for a match, as I remember the board (I'm at home now). And that second photo Andrew shows two bridged contacts at either end of the 86 strip that is also the same as I remember it.

I'll try to get photos tomorrow, though I'm also on a 5 hour road trip then to look at a new Fanuc compact vertical machining center for where I'm working temporarily. I think that will get bought if there's no problems evident.

 :mmr:

awemawson:
The linked ways on the edge connector are 0v and 5v I seem to remember.

Often backboards had a slice of PCB running across them standing vertically off those pins to beef up the current capacity. Remember in that era cards were very thirsty for amps !

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