Found in a 1960s RCA documentation, this circuit applies to most common triacs. The trigger device is a neon lamp and the sensor is an LDR. R is typically 100k and C is 220 nF.
Found in an article in the August 1971 Radio Electronics magazine, this circuit supports sensitive...
July 2017 - Mouser Electronics announced the availability of Littelfuse's GEN2 series Schottky...
This circuit is from Radio Electronics from April 1977. The circuit is for analog lines using...