[SOLVED] WANTED! Multibus PCB dimensions for extender card design

[airlomba]

Hello all,

I need to make a Multibus extender card to repair some Lexicon Reverb hardware and I have been searching the Internet for the PCB dimensions, without success. The standard (although deprecated) is still for sale, but since I want to make my design (using KiCAD) freely available to everyone, anything that costs more than 0 bucks is too expensive.

Can anyone help me by pointing to some source of information or better yet, to share some documentation that shows the PCB dimensions with the connectors?

Thank you all for your time and eventual help.

Best regards,
Emmanuel.

[KrudyZ]

Didn't take long to find

www.nj7p.org/Manuals/PDFs/Intel/9800683D.pdf

Third item when searching for "multibus connector dimensions"

[airlomba]

Hello KrudyZ,

Thank you for your reply.

Didn't take long to find

www.nj7p.org/Manuals/PDFs/Intel/9800683D.pdf

Third item when searching for "multibus connector dimensions"

It all depends on the browser configuration and the search engine used. On my system, Google didn't returned my anything useful. Not even using your keywords that I also used. I normally use duckduckgo as a search engine but even this one doesn't return any good answer. My PC needs a cleanup!

On my wife's computer, however, I found interesting results housed in an FTP server from Stuttgart university. There is a lot of useful files there:
ftp://bitsavers.informatik.uni-stuttgart.de/pdf/intel/_busSpec/

Anyway, thank you for your time.
Best regards,

[airlomba]

Hello all,

Anyone needing a Multibus 1 card extender?
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I just shared my KiCAD file on github at:
https://github.com/airlomba/KiCAD-projects/tree/main/Multibus-1-extender

Hope this can be useful to someone.

Best regards.