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.
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.