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 was found in an old GE SCR manual. The SCR must be in accordance with the relay and...
Found in an Electronics Now from the 90s this mixer has several inputs. The integrated circuit can...
In the figure we have a piezoelectric transducer drive circuit that can be used in conjunction with the...