NOS Bare Boards: What to do?

From: Mzthompson <>
Date: Sun Apr 12 11:15:12 1998

>> From: "Jeff Kaneko" <
>> Guys:
>> Afer looking at a number of responses, Uncle Roger's position
>> seems the most logical to me (besides, one other person suggested
>> this also). I think I'll buy that parts to build this, and just keep
>> it until needed.
>> Building it won't be a priority, though. The MP-A wasn't exactly the
>> best SS-50 CPU available. I have a NOS Thomas Instruments Super CPU,
>> that I've wanted to build for years. Compared with other S-50 boards
>> of that era, it had alot of cool features. I am working on getting a
>> couple of scarce parts for its companion video board.
>> Jeff

From: Bill Yakowenko <>

>One other thing, before soldering stuff onto that board, make a copy
>of it. (Do photocopiers make decent prints of bare boards?) Once
>a board has chips soldered onto it, it can be a pain to figure out
>which things connect to what. Having a bare-board print could help
>a lot in reverse-engineering the schematic (although I suspect there
>are still MP-A schematics to be had out there). And who knows, you
>might someday want to clone that board.
> Cheers,
> Bill.

There are not only schematics, but assembly instructions and a three
color print showing the top traces in red, bottom traces in blue, and
component placement in black.

I picked an MP-Ab bare board and documentation at a hamfest a long
time ago and never used it having gone with Percom's SBC/9 CPU board
and Percom's Electric Window video board.

If anybody absolutely needs copies of the docs, then I will see what
I can do.

Received on Sun Apr 12 1998 - 11:15:12 BST

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