#radio_receiver__radioreceiver__receiving_set__receivingset__radio_set__radioset__radio__tuner__wireless  an electronic receiver that detects and demodulates and amplifies transmitted signals
  supertype:  receiver__receiving_system__receivingsystem  set that receives radio or tv signals
  subtype:  clock_radio  crystal_set  heterodyne_receiver  push-button_radio
  part:  amplifier  detector  demodulator
  part of:  radio__wireless  a communication system based on broadcasting electromagnetic waves
  part of:  radio-phonograph__radiophonograph__radio-gramophone__radiogramophone  electronic equipment consisting of a combination of a radio receiver and a record player
     part of:  audio_system__audiosystem__sound_system__soundsystem  a system of electronic equipment for recording or reproducing sound

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