[TCML] RE: Variac Question - 120/140V switch

["Lau, Gary" <Gary.Lau@xxxxxx>]

I see no switch in the referenced photo, but if I was to venture a guess, I'd think that the Variac offers two different modes of operation, giving either 0-120 or 0-140VAC output ranges, with a 120V input.  Most folks happily use the 140V mode, as the additional 20V gives coils a significant boost in performance.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Stephen J. Hobley
> Sent: Wednesday, July 30, 2008 12:40 PM
> To: Tesla Coil Mailing List
> Subject: [TCML] Variac Question - 120/140V switch
>
> My Variac, pictured here:
>
> http://i16.ebayimg.com/04/i/000/f9/a8/87a0_3.JPG
>
> ...has a 120/140V switch - I've always set this to 120V, can someone explain what
> this switch is for?
>
> (You can tell I've finally got this thing assembled can't you? I've officially de-
> lurked...)
>
> Steve
>
>

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