What do you mean 'early days'? I have some old
(1970's) TTL data books,
the 1977 Intel databook, one of the very early TTL designer's manuals,
1960 Ericson valve databook (full of counter tubes, etc), etc, etc, etc.
I think I have a bunch of 1960s Motorola MECL books somewhere (with the
move so many things have been "lost", probably to be found in a year or
two!). When I find the duplicates, maybe I will offer them to the list.
Anyway, the point of this is that I find it interesting to see just what
1960s era ICs could do - or really, how much they sucked!
William Donzelli
william(a)ans.net