This amplifier circuit with two transistors was found in a Mullard transistor manual from 1960. The circuit has a maximum output current of 1.3 A.
We found this circuit in a 1988 publication. A touch of the sensor causes the relay to trip and...
This circuit was obtained from a 1968 documentation and can be adapted to use current equivalent...
There are several manufacturers of the integrated circuit used and it also admits equivalents. The circuit...