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The most suitable class of amplifier for a high fidelity radio transmitter is

  • B.
  • C.
  • A.

Explanation from PART66Online

Class A is the most suitable for high-fidelity work because the transistor conducts over the full 360 degrees of the input cycle, so the output is a faithful, low-distortion reproduction of the input. Classes B and C only conduct for part of the cycle and introduce crossover or severe waveform distortion, making them unsuitable where fidelity matters most.

U

udreacc asked · 7 Jul 2026

Class C is specially designed for RF and only that and can't be used for audio

Community Comments (1)

M
Marek_AME 8 Jul 2026
A. High fidelity means low distortion, Class A is most linear, Class C is efficient for RF but distorts too much for clean audio.

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