This circuit for incandescent lamps was found in the January 1980 Radio Elecronics magazine. The sensitivity can be controlled by a potentiometer and the microphone used is of the dynamic type.
Found in RCA documentation from the 1970s, this circuit is intended for firing thyristors in inverter...
October 17, 2016 - Mouser Electronics, Inc. is now offering the Blue Gecko BGM113 Bluetooth®...
This is a circuit that we use very often in our projects, and it also appears in many technical...