This circuit was found in a 1992 publication. What it does is to light an external lamp when it gets dark. The trigger point adjustment is made in a potentiometer or trimpot and the sensor is a common LDR.
This circuit compares the phases of two signals applied to the input, providing an output...
This old voice circuit suitable for telephones of the time was found in a Radio Electronics from...
June 2017 - Mouser Electronics already has Maxim's new nanoPower MAX4000 comparators in stock with an...