Re: [TCML] Sudden and unexplained destructive racing spark flashovers

[Scott Bogard <sdbogard@xxxxxxxxx>]

The coupling factor is 1.2-1.4 or the "best range" as he put it.  This 
make sense in my mind, as he probably maintains a ratio of secondary 
diameter to primary inner diameter (or at least a fixed distance of an 
inch or so) and naturally primary inductance to secondary, so the 
coupling factors logically should scale with the distance from the 
primary to the secondary, with secondary diameter, as all other ratios 
are fixed.  Even his topload distance is generally the same.  Just my 
thoughts on the matter, it doesn't surprise me at all.

Scott Bogard.

Phillip Slawinski wrote:
> On Sun, Jul 5, 2009 at 11:04, DC Cox<resonance@xxxxxxxxxxxx> wrote:
>   
> > Oddly, it appears to be nearly a linear relationship.  A 24" dia sec
> > performs best with 9" of elevation.  A 18" dia. sec performs best with 6.5
> > inches of elevation.  9" dia sec works best with 3.25" of elevation.
> >     
>
> This information is not very useful.  We don't know the geometry of
> the primary coils in question.  Knowing the coupling factor of these
> systems would be far more useful.
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