N.O. Sokal and A.D. Sokal, “Class E – A New Class of High-Efficiency Tuned Single-Ended Switching Power Amplifiers”, IEEE Journal of Solid-State Circuits, Vol SC-10, No 3, pp. 168-176, June 1975. 2.

This single transistor audio mixer is used in an amplifier circuit design with base driven transistor and with its emitter being current controlled, most of the driving current flows through the ...