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In a broadcast superheterodynes receiver having no RF amplifier, the loaded Q of the antenna coupling circuit is 100. If the intermediate frequency is 455 kHz. In receivers operating upto the limit of shortwave broadcasting the local oscillator often used is

  • A.Armstrong oscillator
  • B.Colpitts oscillator
  • C.Clapp oscillator
  • D.Ultra Audio oscillator

Answer: A

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