Re: Tesla coil grounding and other questions

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

Original poster: Esondrmn-at-aol-dot-com 

In a message dated 2/18/04 8:57:22 AM Pacific Standard Time, 
tesla-at-pupman-dot-com writes:

John,

I also use .375" spacing between turns on both of my primaries.  One is 
made with # 10 solid copper wire and one with .375" diameter copper tubing.

Ed Sonderman

>Hi,
>
>Might want to consider .25 as the minimum.  I will use .375 in the future,
>as sometimes turn to turn arcing can occur, even when tuning is in the
>"ballpark".  This can happen even with lower powered systems.  My problem is
>that I like to keep an already bulky project compact, and this leads to
>things arcing and snapping in places that they shouldn't.
>
>John Richardson
>
> > In the end, the minimum spacing required boils down to a volts/turn
> > relationship. For a flat spiral, this increases as one moves from
> > inner to outer turns since voltage is distributed according to
> > inductance and the outer turns, being longer, have more inductance
> > than the inner turns. I used much less turn-turn spacing than 1/4" on
> > one of my primaries and more on others.
> >
> > Malcolm