The figure shows how to generate a sinusoidal signal using a CMOS integrated circuit. The circuit is from a Radio Electronics from November 1976. The frequency depends on the capacitors.
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...