Thermostatic control with mercury sensor (CB21388E)

This former temperature sensor with a mercury sensor was found in a General Electric documentation from 1967. The SCR must match the load.

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Symmetrical regulator (CB23782E)
This circuit was found in a Radio Electronics from June 1967. The regulator is suitable for power...
Video Game (CB24556E)
This complete video game circuit was found in the May 1978 issue of Radio Electronics magazine. The...
Touch Sequential (CB16947E)
This circuit sequentially drives loads connected to its outputs or even applies the signals to the...