Found in Motorola's 1965 manual, this full-wave dimmer controls a load that depends on the used SCR. The trigger element is a neon lamp.
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...