We found this circuit in the October 1987 Radio Electronics magazine. The triac must be controlled according to the heater. The transformer has a low current, of the order of a few hundred mA.
This circuit compensates for the brightness of an LED as a function of temperature. We found it in...
This circuit is from a Hughes documentation from 1968. The components are of the time and the RC...
This sensitive circuit produces na outpu signal when a body is detected by the sensor. The circuit...