This old receiver, powered by a 160 to 250 V source is from a 1936 American radio amateur manual. The circuit has its frequency range determined by the coil (see previous circuits in this series). The headset should be high impedance magnetic.
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This old receiver, powered by a 160 to 250 V source is from a 1936 American radio amateur manual. The circuit has its frequency range determined by the coil (see previous circuits in this series). The headset should be high impedance magnetic.