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RE: [TCML] Variac

Pushing 158V into a 120V NST may be a stretch.  I would not be worried about the secondary insulation breaking down (but not certain here!) quite as much as saturating the primary and drawing excessive current.  If you meter the primary current and don't see it soaring, I guess it's OK.

Regards, Gary Lau

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Phillip Slawinski
> Sent: Wednesday, June 25, 2008 9:59 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Variac
> I just tried it :)  I have a 0-250V variac (with 110 input).  I set up a gap
> and drew a power arc from the NST.  I ran the NST up to 158V (10A on the
> primary).  Seemed fine, and the arc became notably hotter :)

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