Paul G. Allen wrote:
Andrew Lentvorski wrote:
[SNIP]
What's remarkable is that it takes a *LOT* of EE before you can
actually understand everything in those kits. Oscillators require a
good dose of feedback theory before you actually understand them and
that is an upper level course.
Now I have to ask (because you guys got me thinking):
How many people on this list, or that folks on this list know of, have
ever designed a circuit using tubes, or know anything about tubes? It
sounds like analog may not be taught much or well these days, let alone
anything about tubes.
PGA
Analog requires tubes? I saw some program years ago (or maybe a segment
of a program) which demonstrated some of the differences between digital
and analog circuits. My most vivid memory of this was of a guy who
built some mechanical toy (similar in size and movement of the common
replicator of Stargate SG-1) with it's circuit board exposed. This toy
was built with pure analog (supposedly). (I don't remember seeing chips
on the board.) While the toy was walking, he was brushing his soldering
iron across the circuit board, creating sparks here and there, but
otherwise not affecting the motion of the toy at all. He did the same
thing with a digital version of the toy and the toy stopped dead with
the very first spark.
--
[email protected]
http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
