This circuit was obtained in old documentation, but it is valid for modern triacs that must be equipped with heat sink. The trigger element is an ordinary neon lamp.
This circuit, which can also be adapted to function as a microcontroller shield, is from 2003...
This sensitive circuit was found in an Electronics Hobbyists Handbook from the 1990s. The circuit can...
This circuit can be used with 3 receivers and is intended for low frequencies (medium wave range). We...