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Toriod Testing

 * Original msg to: Esondrmn-at-aol-dot-com


Just a couple of thoughts that may be of help.

The first was on loosening the coupling on your system:
it may well be possible to tap the inside of the primary coil 
out a turn or two to loosen the coupling without raising the
secondary. This will loosen the coupling by moving the field flux
outwards some. The large outside turns of the primary add much
more inductance per turn than do the inside turns, which means
regaining the system tune should be easy with your primary.

BTW, those big outside turns add significant inductance. The
extra inductance increases your coupling coefficient, which must
then be compensated for by adjustments elsewhere in the system;
improving the ground and loosening the coupling, or reducing
power.

RE: your 20% increase in spark production with the new toriod. 
I noted your statement that this increase was gained without
a significant increase in input power. It seems that identical
input power is now processed and transferred at rates that exceed
the secondary limits. By loosening the coupling some you do not
really sacrifice any available power, instead you are limiting
your gain to maintain the system integrity. 

This shows the efficiency of the "sweet spot" in this coil design
when the coil is loaded for bear with toroid, and the primary is
tapped out between 12 - 15 turns. The power that can be trans-
ferred by a field flux such as this is truly incredible, reaching
hundreds, even hundreds of thousands, of kilowatts at it's peak. 

Richard Quick  

... If all else fails... Throw another megavolt across it!
___ Blue Wave/QWK v2.12