Rama,
>>(P.S. the math isn't really all that bad >>
for a single transistor)?Even
when you start applying negative feedback? :-)
By the time you get that far you have also had to contend with the effect
of following stages. The gain of a stage is usually never as good ad the
beta, i.e. current gain. Stage gain is roughly equivalent to? Rc ||
R load divided by the emitter AC resistance. (the || is shorthand for in
parallel with).? In most cases you can ignore the r(sub)E unless the
emitter R is low or you need a more accurate figure.
Jim
