This circuit is from a National Semiconductor manual from the 1980s. The integrated circuit is rare today and next to the diagram we have the formula for calculating the components.
This circuit was obtained in an English publication of 1975. It is a regulator circuit for...
In this circuit the relay triggers on when light falls onto the sensor, a common LDR. Power supply...
January 2017 - Mouser Electronics already has the new Ultra Low Drop controllers from Toshiba...