Re: Power Supply Question

--- In CAD_CAM_EDM_DRO@y..., JanRwl@A... wrote:

> For that kind of "non-electronic" application, the rectified output

of a

> Variac (S.E.'s name for "variable transformer") would do. Oh, if

you need

> more voltage, you could feed the output of the Variac into the

primary of a

> 2:3 transformer, even an auto-transformer, and rectify the output

of that.

>

Variacs are extremely usefull devices, however you should check
to see if yours provided isolation from the A/C line. I think
I heard that most do not. Autotransformers do not provide isolation
either. So it would be safer to use an isolation transformer
with the variac.

Chris