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.
This simple rhythmic light circuit uses a 110 V to 220 V transformer and can hold a good number of...
This circuit was found in a 1980s Intersil documentation. The integrated circuit used is not...
This circuit was found in a 90’s Electronic Engineering. The integrated circuits are of the time...