This circuit is from Motorola's Linear Interface ICs of 1993. The integrated circuit is not common and the Triac is chosen according to the power of the controlled load.
Obtained in a 1969 Ferranti documentation, this circuit dissipates only 2.2 mW with 4.5 V. The...
This configuration is traditional and can be found in many other circuits in this section. The...
Suggested by General Electric in a 1965 publication this circuit uses a light bulb. Can be changed...