[TCML] 5" Sparks - Approx 35 watts input power: Tesla was correct!

[FutureT at aol.com]

In a message dated 3/13/2008 8:56:55 P.M. US Eastern Standard Time,  
Gary.Lau at hp.com writes:

> Hi  John,
>
> Karl's report of 18.125" exceeds the formula by 1". So,  small coils can
> do well. Wait, I'm assuming a small coil. Any specs on  Karl's coil? The
> contest is about small power, not necessarily a small  coil.
> Bart



Bart, all,
 
Interesting that Karl's coil uses a sphere topload instead of a  toroid.  
The secondary size of 3" x 17.5" is not too small.  
 
Cheers,
John



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