This circuit is used to test triacs. It can be connected in series with a resistive load such as an incandescent light bulb. The circuit was suggested by Electronics Now magazine in November 1999.
This 4-function, high-pass, low-pass, band-pass and rejector filter was found in French...
Passing between a light source and the sensor will trigger on the relay by a time interval...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...