Re: Tesla Coil toroid Size

• To: tesla-at-pupman-dot-com
• Subject: Re: Tesla Coil toroid Size
• From: Greg Leyh <lod-at-pacbell-dot-net> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Fri, 18 Sep 1998 03:19:48 -0600
• Approved: terryf-at-verinet-dot-com

John H. Couture wrote:

>   I think you are taking too much for granted by assuming the TC primary
> cap energy is not changing when the breaks are changed. This parameter
> should actually be measured. However, I agree that the spark length depends
> on the number of breaks.

I agree that this parameter should actually be measured.  
I did it, with a HV probe and a scope.  You should too.


>   In my TC Construction Guide I show the following equation (modified) -
>   watts seconds = .5 x Cp x Vp^2 x BKS/EFF
>   It is obvious from this equation that the total watt seconds will
> increase as the breaks increase and the sparks increase.

I'm sorry, but this equation is totally wrong.  The quantity
(0.5 x Cp x Vp^2 x BKS/EFF) has the units of watts, not watt-seconds.
The rest of your derivations that follow from this equation
will therefore require correction.
-- 


-GL
www.lod-dot-org

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