Re: VTTC provisional results

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 3/16/01 10:17:40 AM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

> - I have tried various primary coils from 7 turns to 67 turns (now) 
>  and found that the actual coil works best despite the transformation 
>  ratio is lowest now.  Why?
>  
>  Regards,
>  
>  Herwig

Herwig,

The tank impedance seems to be very important in a VTTC,
just small changes can have a big effect as you've seen.
I don't know what the optimal arrangement is however.
Since I've built my coils various ways, and they never get
super-efficient, and they always give similar power input
to spark length ratios, I assume I'm somewhere near the optimal
point.

John Freau