11 May
2007
11 May
'07
5:04 p.m.
I've posted a photo of my Microcomputer Systems Corporation SA4000-to-
GPIB disk controller PCB here:
http://www.sydex.com/durango/msc1088.jpg
This is a large board (12"x19")that contains mostly 74LSxx logic.
The two 24-pin cerdip packages at the top left side are AM2506DC 4-
bit ALUs; the 28-pin package below them is a N8209 (Signetics) 64x9
bipolar RAM. The 40 pin package to the left of them is an Intel 8291
GPIB talker/listener. The
Just thought I'd snap a photo before it went back into its box. The
documentation for the board (just command definitions) is dated 1979.
FWIW,
Chuck
