Based on a CA3059 zero-cross switch, this circuit was found in the July 1995 Electronics Now magazine. The circuit is not isolated from the mains.
This circuit is from old documentation but can be applied to modern equivalent components. The...
This is an old 1988 circuit consisting of a timer or time control for exposing silk-screen arrays. The...
This simple 741 circuit was found in the August 1993 Electronics Now magazine. The source must be...