This circuit is the power supply for the amplifier in the previous circuit. The transformer is 5 A with a voltage of 45 V, obtaining 70 V after rectification.
The circuit presented may use any general purpose transistor. The indicator is an LED and...
The operational amplifier used in this project no longer exists, but the circuit can be adapted to...
This car battery monitor was featured in the January 1988 issue of Radio Electronics magazine. The circuit...