Re: Tesla coil grounding and other questions

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

Original poster: "John Richardson" <jprich-at-up-dot-net> 


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