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Re: LC Ratios and Arc Lengths

Hi Bart,

	WOW!!  Looks like your onto something really big here!!

I did have a few questions:

The scale on the left of the graph is in inches.  However, this does not
seem to make sense for the scale of Primary/Secondary inductance or
Secondary/Primary capacitance?  

For example:  The Nemesis (Richard Hull) put out 162 inch sparks as
mentioned in Greg Leyh's data.  This is what your graph shows.  However,
his primary inductance was 101uH and his secondary inductance was 0.11H.
That ratio is 0.0009182  The secondary capacitance works out to 73.43pF
(0.11H and 56kHz) and the primary capacitance was 0.085uF.  That ratio is
0.0008639.  

It would appear that the Sec/Pri capacitance needs to be multiplied by
~192156 and the Pri/Sec inductance needs to be multiplied by ~177525 and to
fit on the inches graph.

Of course, you were working late and probably pretty excited!! :-)  

Please clarify how the ratio of inductances and capacitances were plotted.

Fantastic work!!!!!


	Terry
	terryf-at-verinet-dot-com



At 11:28 PM 12/26/98 -0600, you wrote:
>Hi everyone,
>
>Tonight, I was playing in Excel with coiler stats which
>were provided in different coiler surveys during 1998.
>I've taken liberty's of adding calcs such as Secondary
>and Primary LC values where they were missing specific
>coil stats (Medhurst and Wheeler equations) including
>loaded frequencies based on toroid dimensions. I'm just
>beginning to look at this information and I've drawn no
>conclusions at this point. But, I did graph LC ratios
>against arc length (less than 15 minutes ago) and
>decided to upload it real quick to my web page and share
>with all. It is interesting. Feel free to take a peek of
>the graph at the location below (after all, you may be
>one of the coilers listed on the graph). BTW, I removed
>only the coilers which I did not have enough
>information. Also, note that this is a "moment in time"
>for coilers. Arc lengths have most likely been exceeded
>since:
>
> http://www.geocities-dot-com/capecanaveral/hangar/3108/lcratio.html
>
>All comments welcome.
>
>Bart (Merry Christmas from the cold tundra of Minnesota
>- Purple Pride!)
>
>