This two-output circuit was found in General Electric documentation from the 1990s. The circuit uses an NTC as a sensor and the control element is an SCR.
This circuit deactivates devices powered by the power grid so that when the power returns, they do...
The trigger signal for this circuit is an audio tone. Tones up to close to 100kHz can be used. The...
Found in the March 1974 Radio Electronics magazine, this circuit is designed to measure the level...