Re: Tune?

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

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Hollmike-at-aol-dot-com>
> 
> Just out of curiosity, why would you set a limit of 0.017uF for a 15/60
NST.  I
> have heard of some using 4 times the impedance match value(resonant cap).
 Now
> understandably, this would tend to create losses due to high current, but if
> the primary coil had sufficient impedance it would still work.  If
someone were
> to wind a 6 by 30 coil with, say 28g wire, a larger cap might be the best way
> to allow it to be tuned properly.
> Mike

	If you set the gap spacing small enough larger capacitors will indeed
work.  I have used 0.02 mfd with a 12 kV, 60 ma transformer with good
results.  As you widen the gap interesting things happen to the spark
frequency, which can easily become chaotic.  Similar behavior is shown
in Electronic WorkBench simulations.

Ed