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Re: Capacitance of a coil
In a message dated 1/14/99 4:12:24 AM Mountain Standard Time, tesla-at-pupman-dot-com
writes:
>
> please help me on this: I'm writing a Tesla coil calc program (well,
> just for me to understand it better and get familiair with the calcs),
> but I don't know how to calculate the capacitance of a coil. I could of
> course use Medhurst's formula (is there a table for H/D ratio > 5?), but
> I wanted to know if there's another way to calc it too.
>
> Thanks, Reinier
>
> BTW: It's only going to handle metric units!
>
Here is one that works. It is good for H/D from 2 to 8.
C(pF) = k*D where D = diam in cm.
k = 0.100976*(H/D) + 0.30963