This circuit is designed to control static loads fed by direct voltage. The circuit is from Motorola documentation from 1968. Equivalent SCRs may be used depending on the load.
The circuit presented may use any general purpose transistor. The indicator is an LED and...
This source was found in a 1982 American publication, but can be easily assembled using 2N2995 (PNP...
Found in a 1980s documentation, this circuit uses as base a component of the era. The formula for...