8 Jul
2003
8 Jul
'03
4:48 p.m.
Jim Davis wrote:
<snip>
Good question! I've also chased down several bad 7474's in my Imlac,
and I suspect some bad 7474's on a
few HP 1000 series I/O boards I have down in the shop.
Is the 7474 a 'dog'? I've know a few TTL parts that were pretty bad,
mainly counters though. But a latch?
That's been my experience, too. I have replaced as many as 8 7474s
at a go to get an -8/L back on its feet. I don't recall replacing
any other chip, as a matter of fact.
-ethan
7474's Dead d flops? whats the story on that?
Jim