This simple thermostat circuit was found in the September 1976 issue of Radio Electronics magazine. The circuit must be supplied with voltage according to the relay. R1 and R2 are according to the resistance of the sensor used.

This simple thermostat circuit was found in the September 1976 issue of Radio Electronics magazine. The circuit must be supplied with voltage according to the relay. R1 and R2 are according to the resistance of the sensor used.