Andre Jute wrote:

You really have to wonder.

Here we have three self-proclaimed engineers claiming that Class A is
an amplification Class in which "the output device(s)never cease
conducting under any signal condition."
conduction "under any signal condition".

What a load of pedantic crap. How about simply specifying that a Class A
amplification stage will never cease to conduct when operated within it's
designed operating range (presuming that it was properly designed).

As for injunears, having passed some written exam at some point in life
(usually before any useful work was done) is no a guarantee of anything.
I've worked with everything from PHDs to people without a qualification to
their name, and, apart from a few of the PHDs, the ratio of the clever to
the idiots has been roughly the same regardless of qualification.

Keith