This circuit was obtained in an old English magazine from 1976. However, the components can still be found easily. The circuit indicates when the voltage of a car battery (or other type of battery) falls below the voltage set in the trimpot.
This circuit was obtained in an old English magazine from 1976. However, the components can still be found easily. The circuit indicates when the voltage of a car battery (or other type of battery) falls below the voltage set in the trimpot.