Suggested by General Electric in a 1965 document, this circuit can accept a greater number of sensors. When anyone opens the SCR it fires powering the load.
This Linear Technology cold cathode fluorescent circuit operates on power from 4.5 V. The...
This circuit was obtained from an American documentation from 1976. The circuit has a dynamic...
This circuit was originally intended to operate with a solar source for experiments. Transistors are...