Extended range power control (CB7935E)

This circuit was found in a General Electric documentation from 1965. The circuit is full wave for 600 W power with the indicated triac.

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Gas and smoke detector (CB9810E)
This detector uses an unusual sensor today. The circuit is from an 80s documentation. Its...
Alarm and Immobilizer (CB24467E)
This circuit was found in the December 1976 issue of Radio Electronics magazine. The circuit...
Interface or Shield with Triac for Inductive Loads (CB13114E)
For inductive loads we have the configuration shown in the figure. Note that the opto-coupler...