Repair methods (was Cromemco 3101/Beehive B150 score)

[William Donzelli]

> In a sense, hobbyists have been spoiled by the simplicity of connecting up
> TTL (and before that, RTL and DTL).  Had the industry standardized on ECL,
> things would be quite a bit more interesting on the design end.

Yes, like programmiung in Pascal, engineers would need to follow all the
rules. Some might say that would be a good thing...

Anyway, some years ago I did some 100K design, and pretty much if you
follow all of the rules in the Fairchild book, nearly all of the weirdo
analog (radio?) problems drop from sight. It actually was not too hard to
get away with doing a good digital design while not knowing much analog
theory. You just had to pull out the ruler quite a few times - now how
long is that trace?

100G scared me, so I never did anything with that except get some parts
and datasheets. 

William Donzelli
aw288 at osfn.org