Found in Maxim's documentation from the 90's, this circuit uses a component from the time and has its performance curve shown next to the diagram.
In a voltage follower, the gain is unitary, and the input impedance is very high. The output...
This circuit can control two loads and is also equipped with a light sensor for its trip. The...
This inverter amplifier is from a 1992 publication. NPN transistors can be BC548 and PNP BC558....