[TCML] JAVATC & tuning
resonance at wildblue.net
Tue Apr 6 19:31:11 MDT 2010
1/4 to 1/2 turn is normal with a 7-9 turn pri. With larger primaries a 2
turn variation is normal.
It's like a percentge of the whole thing.
You may wish to increase your capacitance, thus adding more energy, and try
to get down to 8-10 turns max.
Also, a hyperbaric gap design will provide optimum performance with most any
nst powered coil.
On Tue, Apr 6, 2010 at 4:04 PM, <otmaskin5 at aol.com> wrote:
> Hey guys - I just built a built a 6" secondary & installed on my 15/60
> system (replaced the old 4" secondary). I ran it on Sunday & like the way
> it's performed so far. I've got the static gap set conservatively at 0.12",
> & will gradually open in up as I get more confident everything is in balance
> & working the way it should be...which brings me to my question. JAVATC
> indicates optimal tuning at 17.3 primary turns. I started there but didn't
> get any sparks at all. Eventually after trial & error tuning I found the
> optimal primary tap point at 19.3 turns, 2 full turns more than JAVATC
> indicated. The coil seemed to run smooth at 19.3 turns and I didn't detect
> problems to indicate the anything was significantly out of tune.
> In the past, JAVATC has always proven to be right on the money or within a
> quarter turn of where I've found the actual tuning point. So I'm thinking
> I'm doing something wrong here - 2 full turns seems like major difference.
> I've gone back, checked & confirmed all the inputs (physical dimensions &
> elevations) and I've run the program a few times always getting the same
> result - 17.3 turns. It's really bugging me like something's just not
> right. Any ideas on what else I might look to resolve the discrepancy?
> Thanks for any ideas, Dennis Hopkinton MA
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> Tesla at pupman.com
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