5874E)
This circuit uses an optocoupler to switch a load on the power grid. The circuit is from Electronics Now magazine, July 1995. The CA3059 is not common today.
The basis of this circuit is the 723, an old integrated circuit not easier to find these days. The...
This circuit was found in a May 1981 Radio Electronics magazine article. The circuit is offset...
The circuit presented was found in a Japanese magazine in 1973. The circuit uses transistors of...