This circuit consists of an electrostatic sensor that can check if a cable is energized by simply approaching it. The circuit is from an Electronics Now from December 1998.
This circuit, found in an English publication in 1982, has an inverted sequential effect, as the...
With the values indicated for this circuit, the lamp will flash 60 times per minute (1 per...
This simple radio for listening to a headphone with two CK722 transistors was found in Radio...