RE: performance/tuning question

["John H. Couture" <couturejh-at-worldnet.att-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Mike, John, All -

The Cp/Cs and Ls/Lp ratios are a dilemma when it comes to TC computer
programs. Tests have shown that when the Ls has been increased such as
increasing the secondary turns the output spark will increase. However, I
have not heard of anyone making the proper tests to determine if when the
primary capacitor is increased the spark length changes and if the input
energy changes.
It is a well known fact that with a NST if the primary capacitor is a
resonant type the spark will increase but the NST input current increases.

Have you or anyone on the List heard of any of these tests?

John Couture

------------------------------

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, July 25, 2000 5:45 PM
To: tesla-at-pupman-dot-com
Subject: Re: performance/tuning question


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

John,
   To a point, this will likely increase the output - if something else is
not the limiting factor.  The output voltage is largely dependent of the
Cp/Cs ratio(or conversely the Ls/Lp ratio which would be the same if the
coil
is tuned to the fundamental frequency of the secondary system and not a
harmonic).  There are of course other factors involved with spark
propagation, but this is one way to possibly improve performance of a coil.
It is certainly worth experimenting with if you have the caps to do it.
Mike

> Hello,
>
>  I was wondering, if I was to build a TC with the tank cap double or
triple
>  the value derived from the formula used to match it with the impedance of
>  the power supply (say .01ufd or .015ufd instead of the matched value of
>  .005ufd) and decreased the primaries inductance appropriately so that the
>  primary and secondary would both resonate at the same frequency.  What
>  affect would that have on the system and output compared to starting with
>  the cap matched to the power supplies impedance.  Has anyone done this
and
>  would this have much affect on the streamer length and "look" (whiter but
>  less smooth, etc.)?   BTW this would be in a rotary gap setup if that
made
a
>  difference.
>
>  Thanks experienced ones,
>  John M.
>