This circuit was found in the December 1976 issue of Radio Electronics magazine. The circuit includes a powerful pulsating siren. It is activated by courtesy light switches and other sensors.
July 21, 2015 - Mouser Electronics, Inc. is now shipping the Curiosity Development Board from...
In this circuit, the output voltage is slowly established, thus avoiding the impact when...
This circuit is from an old Italian publication, being used in record players with crystal...