This 100 MHz bridge circuit was found in an American 1970s documentation. The supply voltages are not indicated, nor are the tubes.
This converter converts signals from the 50 MHz band to the AM band, making it possible to receive...
This circuit, from a 1987 documentation, is for the CB3817E transmitter. Connected to the handset...
The output of this circuit can be a crystal phone or a piezoelectric capsule. The circuit tests the...