25 Jul
2000
25 Jul
'00
10:37 a.m.
It's been a while since I have picked-up any
_digital_
computers, but I just could not resist this. I found
someone selling a Ohio Scientific Model 600 on eBay,
and when I went to check was it sold for, I discovered
that no one wanted to bid the $20 minimum bid.
Sigh... I kept meaning to email that guy. Oh well, at least
it went to a good home.
The main board says:
"Ohio Scientific Model 600 CPU @1978 Rev B"
I can give you full schematics for this guy. I've got the
SAMs.
The large daughter board says:
"@1980 AARDVARK". And it contains a MC6821 PIA.
I have some Aardvark schematics and assembly/troubleshooting
manuals (well, not manuals really, stapled together xeroxed
sheets). I think I have that board. Does a parallel port
and 8K of 2114 static RAM.
The small daughter board contains three 2716s labeled
"REV 94 I", "REV 94 II", and "REV 94 III".
I think that's an Aardvark board too... no idea what's on the
EPROMs though...