This 1965 circuit consists of a small inverter for an ultraviolet lamp. The circuit is from a Motorola manual and the transformer must be wound on the core indicated in the diagram.
This circuit was found in a Mullard transistor manual from 1960. Note the symmetrical power...
With the shadow over the sensor, it is possible to interrupt the sound of your amplifier using this...
This circuit puts the battery in the circuit when the voltage of a source is cut, preventing it...