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.
This circuit, which appears elsewhere in this section, was taken from McGRAW documentation from...
Found in documentation from the 90s, this circuit can employ other comparators in the series such as...
The purpose of this circuit is to reduce the ripple of a power supply. The circuit is from a Radio...