8/S Replica (was: TTL CPU Re: IMSAI style C&K 7101 switches)

Christian Corti cc at informatik.uni-stuttgart.de
Wed Feb 27 04:07:07 CST 2008

On Tue, 26 Feb 2008, Roy J. Tellason wrote:
> What TTL are you calling hard to find?  Just curious, as I might have 
> some of it on hand here...

For example SN7439 (NOT '38; equivalent to DEC8881) and SN7489 (16x4 bit 
RAM; extensively used in some PDPs for registers).


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