After the confusion of “Advance the Full License” and its lack of a little table format explanation I thought I’d try and put it a sensible way.

Amplifier Classes crib
Amplifier Class Qualities Efficiency
A  Biased so it conducts a 100% of the time. It also remains constant as the amplifier is not Over driven  <35%
B  Push Pull Amplifier one circuit works with the positive one works with the negative. Works well with AM, SSB and Datamode  <50%
C  Suitable for FM Transmissions and CW as long as not overdriven <67%


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