This circuit was found in the February 1997 Electronics Now magazine. The circuit has a power supply for the NE602 and free inputs and outputs for projects.
This circuit is used to obtain the synchronized activation of a mechanical battery clock. The...
ON Semiconductor Phototransistor Output Optocouplers Available from Mouser Electronics is the...
Found in an Electronic Design from the 80's, this circuit monitors a three-phase line, activating a...