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 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% |
