Audio Banter - View Single Post

**Jon Yaeger** · January 22nd 08, 02:40 PM posted to rec.audio.tubes,uk.rec.audio

in article
, Andre
Jute at wrote on 1/22/08 8:19 AM:

Small is also beautiful. The small is the genesis of the large.

It's funny that some cannot grasp this fundamental concept with
single
ended triode (SET) amps. We routinely build preamps and voltage
multiplication stages of triodes operating single-ended, and the
diehards who with a convulsive kneejerk reject any amp without a
push-
pull power stage will be the last to let go of the single-ended gain
stage, yet they cannot see that the small signal stage is a template
for the sweetest power stage.

What is sauce of quail must be sauce for the goose and the gander
too.

Very difficult to understand how some people think.

Indeed. Not being a narcissist, I can't quite grasp your thinking, either.

Regardless of how one feels about SET amps, the reasoning you offer is
flawed.

Input and output stages differ greatly in terms of gain and power. What
works well at the input isn't the same at the output, only with "more
power." There are very different design goals at each end.

For a very rough analogy, think about an automobile's power train. What
happens at the crankshaft is different from what happens at the axle. Think
of what a transmission does. Think of the forces (in terms of torque) along
the way. Different design parameters at each end as well . . .

Jon