tuned-radio-frequency receiver

tuned-radio-frequency receiver

[¦tünd ′rād·ēo ¦frē·kwən·sē ri‚sē·vər]
(electronics)
A radio receiver consisting of a number of amplifier stages that are tuned to resonance at the carrier frequency of the desired signal by a gang capacitor; the amplified signals at the original carrier frequency are fed directly into the detector for demodulation, and the resulting audio-frequency signals are amplified by an a-f amplifier and reproduced by a loudspeaker. Abbreviated TRF receiver.