7 Mar
2003
7 Mar
'03
3:44 p.m.
----- Original Message -----
From: "Jim Kearney" <jim(a)jkearney.com>
The Mark-8 design is markedly inefficient; ones with
many fewer ICs are
pretty easy to come up with. It's not especially anachronistic to use
2112's or 2101's, which are relatively easy to come by.
If you were wirewrapping or point to point soldering, you
might consider 2114 static rams. Might be easier to get
hold of thah 2101/2102s or 1101, but they won't fit into
the original or copied Mark-8 boards.
The pain and weakness of the Mark 8 design is the bus
connection scheme- soldered wires and molex across the top.
It would be better if you can use RA SIP connectors..
heinz