There are two salient facts about Class A amplifiers: they are inefficient; they give the best possible distortion performance. The quiescent dissipation of the classic Class A amplifier is equal to ...
The almost universal choice in semiconductor power amplifiers is for a unity gain output stage, and specifically a voltage follower. Output stages with gain are not unknown, 1 but they are not common.
Let’s face it: Diagnosing electric problems is a pain, to say the least. You can get far with a test light and your trusty digital multimeter, but you still might end up just throwing parts at the ...