Re: Stability in Feedback Amplifiers, Part Deux-A

"Patrick Turner" <info@xxxxxxxxxxxxxxxxxx> wrote in message news:463E7DFE.D6DD10D3@xxxxxxxxxxxxxxxxxxxxx
One needs to lock one self in a library for several weeks to understand
these guys. People spend years studying this stuff, and what do they
make that is of value as a result? Pehaps they make noise at funding
committees so they get another grant to fund the next lot of research,
ie, they can skurry away and hide in their books and get out of having
to deal with the real world.

You don't need global feedback to build a good-sounding amplifier. So
in that sense you're on safe ground portraying feedback math as some
kind of esoteric research science with no real-world applications. To an
electrical engineering student, what you're saying here is just laughable.
Nothing of value has ever come from studying transforms? Excuse me?

Decades ago, tube audio technology was cutting edge stuff and you can
bet that at the time all that math was extremely relevant. Nowadays, it's
all been boiled down to well-known recipes that anyone can put to good
use without knowing any math at all. That doesn't mean the math isn't
useful; it's just baked in, so to speak.

I read your technical explanations and find them long on words and short
on insight. Whether you realize it or not, Patrick, what you are doing is
trying to cap the level of technical discourse. A good teacher, who really
understands these subjects, could present them in a way that is interesting
and accessible. Of course, that would tend to diminish your stature as the
resident technical "expert", wouldn't it?

There is plenty of value in the (slightly more advanced) math concepts
you constantly dismiss as "useless". If you got out more, you'd find
other forums where these concepts are discussed and put to very fine
and practical good use.

-Henry


.

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