Found in a 1966 General Electric documentation, this dimmer should only be used with incandescent lamps. The Triac is according to the power of the lamp.
This circuit is suggested by the Optoelectronics Sourcebook by Texas Instruments when AC signals...
This circuit was found in 80's Popular Electronics. Transistors are commonly used. The...
When the power is turned on, the output of this circuit goes to the “1“ logic level by a time...