RE: Variacs and current draw

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jim-at-jlproduction-dot-com>

Really??

I run three 9/30's with one with no apparent trouble. In fact when I had
it wired wrong (I think it was acting as a voltage amplifier) I was
literally smoldering the variac and it still works fine.

When my air blast gap is set to wide, like WAYYY to wide (for big arcs)
I crank the variac up all the way and THEN throw the power on which must
really stress it and still have no trouble to date.

Am I just lucky or is my math wrong? I calculate it thusly-
12x60=720 watts
9x30x3=810 watts

Mind you I'm not being a wise guy, I'm just curious if I am way off or
what??

Jim L
http://www.jlproduction-dot-com/forum
(online Tesla coilers forum)



-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent: Friday, October 11, 2002 5:58 PM
To: tesla-at-pupman-dot-com
Subject: Re: Variacs and current draw

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Matt,

About 14 amps!!  Variacs can be pushed pretty hard but a 5 amp variac is
probably really too small.  But...  If you add 200uF of PFC caps then
you would
be at 8 amps which would probably be in range of a 5 amp varaic.

Cheers,

        Terry


At 05:19 PM 10/11/2002 -0400, you wrote: 

>
> How much current would the average 12/60 transformer draw. The reason
I m
> asking is that I want to use a variac with it but I don t know which
one I
> can get. Is 5amps enough?
>
>  
>
> Matt






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