This version of triac control is from a 1968 documentation. The circuit uses components from the era that can be replaced with modern equivalents.
This circuit is from a manual of FETs of 1977. The FET can be the BF245 or MPF102 and the relay is of...
The transistor in this project found in the July 1994 issue of Electronics Now magazine can be any...
This single pulse generator, loss detector, or peak detector was found in an old General Electric...