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In Reply to: RE: Those Who Wish to Destroy Me Can Take a Number posted by Mr_Steady on November 25, 2014 at 13:27:01
All excellent points-- no argument from me!
As far as running a driver stage into a speaker-- that would depend on how much power the driver stage in question-- has. If it's enough to drive your speaker, then an output transformer will convert what is primarily voltage swing into what is primarily current drive.
The answer to this question is simple: if a given amp stage has enough power to run a speaker, then why not do so-- why add more stages on to it??
If it doesn't have the power you're looking for, then you can add-on a higher power stage. That becomes one too many stages for an ideal amp, and is why we design 2-stage amps.
I didn't answer because I knew it would be blasted all out of context, and I didn't have time for a Dog/Cat fight over nothing at all!
---Dennis---
Follow Ups:
"All excellent points-- no argument from me!"
Somehow I think this should be immortalized.
So, is the power tube in a three stage amp also a voltage amplifier, and the OPT transforms it to current power? Sorry, no more basic questions. I'll stick to questions nobody knows anything about, like voltage regulation circuits. FETs loading the plate anyone?
Jamie
Big speakers and little amps blew my mind!
Power is usually expressed in watts, or volt-amperes. Watts equals Voltage times current: VA (watts)= amperes (current) X voltage.
---Dennis---
Thus endeth the lesson.
Big speakers and little amps blew my mind!
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