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Re: Tesla Coil toroid Size
Tesla List wrote:
> Original Poster: "John H. Couture" <couturejh-at-worldnet.att-dot-net>
>
> To All -
>
> In the past several coilers have said that increasing the size of the
> toroid increased the output spark length. Did they understand what their
> tests were telling them?
>
> The toroid capacitance is found in the equations
>
> Vs = sqrt(2J/Cs) Vs = Vp sqrt(Cp/Cs) Cs= Ccoil + Ctoroid
>
> These equations indicate the output voltage (Vs) or spark length would
> decrease, not increase, if the Cs (toroid capacitance) was increased.
John,
As you stated, it has been proven by tests. You are correct that Vs decreases
in the equations above (and probably in the real world tests). Current on the
otherhand must increase if power out remains constant, and still, there may
not
be enough power to breakout of a larger toroid without increasing voltage or
current settings. It appears that current is responsible for sparklength
and Vs
is responsible for the ionization of the spark channel.
Bart