24 Aug
2006
24 Aug
'06
12:20 p.m.
Tim Shoppa wrote:
If you buy TTL parts from either of the above
sources, they are also likely to date from the
mid-70's, somewhat matching your machine :-).
I won't talk about the house number parts and
unlabeled parts that sometimes show up too!
Amazing quantities of chips from the 70's show
up regularly on E-bay. You know, quantity 100000
of 7407's etc. It's hardly the same as buying
a few spares, though!
The best source for TTL seems to be Unicorn Electronics
for spares as they have a large selection of TTL, 74H
74S,74S and LS and 74L.
http://www.unicornelectronics.com/
Tim.
.