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A Variac provides an output voltage that is a faithful, distortion-free reproduction of the input signal waveform. This is a necessary feature of many electronic applications and is the result of excellent design and the use of high quality grain oriented silicon steel. This variable transformer is designed with a built-in copper coil suitable for long-term use. With an LCD display, flexible rotating wheel and safety protection, the compact voltage transformer is of high quality and can provide more stable and safe supply. A Variable transformer, also known as Variac, is a continuous and adjustable voltage autotransformer that has a brush mounted on a commutator that moves on the winding manually or motorized. Rotating the switch provides an output voltage from zero to or above line voltag.
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