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.
Using a pair of 741 op amps, this 90 s Radio Electronics circuit works with the previous one. The...
This circuit was found in a 1962 publication. At the time there were high voltage batteries like the...
This circuit was obtained in a 1991 Electronics Handbook. The publication no longer exists, but...