This 100 MHz bridge circuit was found in an American 1970s documentation. The supply voltages are not indicated, nor are the tubes.
The 50 kHz signal generated by this circuit is applied to a low impedance inductive transducer. A...
This different audio amplifier was found in a 90's Electronic Design. The circuit uses components...
This circuit converts a resistance in the range between 1 k ohm and 1 MΩ to a signal in a...