The coils of this circuit will determine the transmission frequency of this device. The circuit is from the 1960 Mullard transistor reference manual and makes use of germanium transistors.
This circuit is an improvement over the previous one, using the same capacitor system as a sensor....
Currents of a few milliamps are enough to drive loads up to 500 mA with this circuit. The...
This power supply circuit for high power audio amplifiers was found in Radio Electronics from the...