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Re: Old questions, new free time



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

Hi Ben,

At 07:49 PM 12/27/2001 -0800, you wrote:
>Hi all, 
>  I know some of these questions may have been asked
>before, but I just got about 2 weeks free time to work on
>TC stuff (no classes till janruary ;) ) so here goes:
>
>Is it possible to run an NST on 220 instead of 110? I think
>I remember ppl doing this because it drew less current.. 

If you have twice the voltage, you can use 1/2 the current to get the same
power...

>
>Which leads me to my next question: I've been looking
>around for ideas on building a power/control box and
>wondered if anyone had any suggestions.. I've got 2 10 amp
>variacs and a HUGE (150 lb) twin gang 100 amp variac to
>mess with.. I'd like to have both 110 & 220 out (for future
>pig installatoins) and possible ballasting setups.. Does
>anyone have any suggestions?
>
>Finally, can someone point me to a URL for a set of KNOWN
>correct equations for TC calculations? I was playing around
>with a few I've had for a while and I noticed that the
>numbers kept coming out different from the design
>software.. I'd like to do the calculations by hand first
>and then compare.. 

This is the site "I" go by:

http://home.earthlink-dot-net/~electronxlc/formulas.html

>
>Thanks for any help.. 
>
>Ben McMillen
>
>

Cheers,

	Terry