This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the zener, the circuit can be used to monitor other voltages.
The integrated circuit used in this project is unusual and it includes internal transistors that...
This 1997 documentation circuit was originally created for use with Camcorder type video cameras....
This circuit is from a 1972 Motorola publication. The used transistor can still be found, but it...