This circuit was found in General Electric documentation from 1966. The circuit is suitable for any triac. It can also operate with other mains voltages.
This circuit is from a 1965 Electronic Design. The transistors may be general purpose and the...
The idea of this circuit is a resistance meter or continuity test with a common microammeter or...
This circuit was obtained in a 1964 Electronic Design. Equivalent modern transistors can be used....