This grounding test circuit was found in an American 80's documentation. The circuit is for the 110 V power grid but can be changed to the 220 V power grid.
This trigger produces an output pulse when zeroing the input signal. The circuit is from a...
This circuit was obtained in a 1995 Electronics Now. It switches off a relay after an interval that...
This circuit causes an LED to flash at a frequency determined by the capacitor. The circuit is...