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.
Radio Electronics magazine published in a 90's issue this simple alarm that can use any general...
This circuit is from the 2005 Linear Technology Application Manual. The circuit must be powered by 5...
We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the...