This traditional dimmer configuration for incandescent lamps and heating elements was found in an RCA transistor manual. SCR can be a more modern equivalent like TIC106, depending on the power grid.
This circuit starts a water pump at a lower level of the reservoir and then turns it off when it...
Using the CMOS 4001 we found this circuit in the October 1974 Radio Electronics magazine. The...
This circuit can be applied to several logics. The circuit is from an Electronics Now from the...