This circuit was found in December 1983 Radio Electronics magazine. The maximum output current is 1 A and the supply voltage ranges from 4 to 28 V.
We obtained this circuit from an old Argentine magazine. The circuit originally uses germanium...
We found this circuit in an old English publication. The sensor is a common LDR. and the...
This circuit is from an 80's component manual. The components are from the time, but the circuit...