The figure shows a typical circuit of a variac with a special transformer with sliding adjustment of the winding turns. The circuit is from an Electronics Now magazine from December 1997.
This circuit was found in the SGS manual of linear integrated circuits of 1982. The circuit...
We found this circuit in the National Semiconductor Linear Applications Handbook of 1994. The...
This simple strobe light is from an article in 1982. Its complete circuit, very simple, appears in the...