Re: WANTED: Good Source of Electronics Theory

William:

That was very good advice.  In a way, I'm trying to do the same thing,
but from a "functional" standpoint as well.

In other words, I know what the expected voltages should be, but I
can't help thinking that if I knew how this circuit actually amplified
the signal, I would be in a better position to troubleshoot it, hence
my original request for good sources for learning electronic theory.
(Some of the sources that have been recommended so far seem to be
excellent, by the way.)  Where exactly does the signal go?, what
should happen when it gets there?, etc.  I believe that these are
questions that I should be able to answer.

So far, what I have is a collection of components that all seem to
test perfectly OK, but don't work, for some as-yet unknown reason.