[Bertie the Bunyip]

Eeyore wrote in
:



Trevor Wilson wrote:

"Eeyore" wrote in message
Trevor Wilson wrote:
"Eeyore" wrote in message
Trevor Wilson wrote:

IOW: The design is more important than the Class of operation.
Class A will help a bad design and, at best, do nothing to a
good design.

You're assuming they all start as Class AB output stages there.

**That's because there are essentially no Class A push pull
designs (anymore). They're all Class A/B with different bias
currents.

That's where I plan to differ.

Now. To get back to the original question.... Have you heard a
noticeable difference between Class A and A/B ?

**Not in a properly designed Class A/B amp. In a poorly designed
Class A/B amp, increasing bias will make it better.

So do tell me, what happens to the delta Vbe in an A/B output stage ?
( note its relationship to current )

Graham



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Bertie