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
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