This circuit is from a Texas Instruments manual from 1968 but can be applied to current controls using modern Triacs. The circuit is for a current of 25 A per triac.
This circuit consists of a small inverter that can generate a few hundred volts of DC voltage...
This sensitive circuit with common transistors was found in the Radio Electronics magazine of July...
This circuit is intended to indicate the operation of transmitters with powers above 5 W. The...