AC source is a better alternative to isolation transformer + variac.

交流源可以更好的代替变隔离压器+调压器.

AC source is a better alternative to isolation transformer + variac .

交流源可以更好的代替变隔离压器+调压器。

You can see that the variac has the PFC and the line filters taped to it…

你可以看到，调压具有PFC和线过滤器贴在它…