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.
The circuit shown is from National Semiconductor's Linear Applications Handbook. The LM3900 is a...
This circuit was found in a William Sheets. It has 75 ohms of output impedance and can operate up to 20...
The Texas Instruments TPS797xx family of integrated circuits is designed to supply very...