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.
The sophisticated white noise generator we present uses four 741 operational amplifiers. The...
This circuit, found in a 1994 documentation, uses 20 A 2N5448 triacs or equivalent and should be...
We found this circuit in a 1994 documentation. It was originally created to be used as a sign for...