RE: [CAD_CAM_EDM_DRO] Killer Supply, was: Power supply schematic???

> I use a large Variac rated at 22 amp and some surplus caps
> that are 10k or 15k uF for each of 3 axis, and a 25smp bridge
> rectifier.

I sure hope you just forgot to mention the isolation transformer in your
power supply??

A variac does not isolate from the mains. With a power supply built as
you describe a person could easily get electrocuted. Whenever using a
variac this way you need to have an isolation transformer in the
circuit. Normally the variac plugs into it. Search the list archived for
lots of discussion on the why for this.

Tim
[Denver, CO]
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