This circuit was found in a 90s Electronic Design. The circuit directly controls a triac that is loaded with a heating element. The triac depends on the power on the load.
The ZN414 is an uncommon integrated circuit currently used in the elaboration of very simple MW...
This latched alarm uses a double relay for this purpose and can control higher power external...
Found in a Popular Electronics from the 90's, this circuit uses integrated from that time, today...