Question

Why are tuned amplifiers preferred at radio frequency? Based on their frequency
response, compare the single and double tuned RF amplifiers.

Answer 1

A tuned radio frequency amplifier is a type of radio receiver that is composed of one or more tuned radio frequency (RF) amplifier stages followed by a detector (demodulator) circuit to extract the audio signal and usually an audio frequency amplifier.
The double tuned RF amplifier has the special feature of coupling which is important in determining the frequency response of the amplifier.

To extract the audio signal tuned amplifier is preferred at radio frequency. Double tuned RF amplifier has the special feature of coupling than single tuned amplifier.