The purpose of this circuit is to produce a quick discharge on a shorted battery to attempt its recovery. The diode must be high current and the transformer too.
This small voltage regulator was found in a 1969 EEE. More powerful transistors can be used to...
This voltage-controlled oscillator with two operational amplifiers and a transistor that can be...
This circuit uses a Hall sensor in the feedback of signals that produce oscillations. The circuit is...