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*To*: tesla-at-pupman-dot-com*Subject*: Weird Secondary*From*: "Tesla list" <tesla-at-pupman-dot-com>*Date*: Sat, 11 May 2002 12:33:07 -0600*Resent-Date*: Sat, 11 May 2002 12:42:03 -0600*Resent-From*: tesla-at-pupman-dot-com*Resent-Message-ID*: <AYdgcD.A.G0E.5XW38-at-poodle>*Resent-Sender*: tesla-request-at-pupman-dot-com

Original poster: "harvey norris by way of Terry Fritz <twftesla-at-qwest-dot-net>" <harvich-at-yahoo-dot-com> If size is proportional with winding spacing, a typically sized up large TC secondary can employ larger gauges of wire, where here I am investigating 280 turns of 14 gauge on 20 inch diameter sonotube. The fifth root formula gives 222,000 hz for these parameters of 1500 ft/9 turns per inch for those in habit of using those obsure estimations.. http://groups.yahoo-dot-com/group/teslafy/message/13 During these discussions made long ago, I started to learn the complications of a secondary resonant frequency, how it deviates from quarter wavelength stuff; You will find in every case that the coil resonates at a higher frequency than the same length length of wire strung out as a monopole would. Always. You cannot assume that electricity is going to travel the length of the wire in a helical coil as it would if the wire was strung up as a vertical monopole. It just doesn't happen. If you can provide a counter example to destroy the validity of that assertion I would be happy to hear it. Tesla, for all his genius was offbeam on a number of things. He often referrred to the length of wire but never did his calculations based on this match reality. You can see this in the Notes. Another fallacy he laboured under for a long time was the notion that to get a resonator to resonate at a particular frequency, you had to "cancel the inductance" by adding a capacitance (the complex conjugate) of the inductance of the coil. Unfortunately that notion assumes that the coil has no self capacitance and when you know that it has, that phrase reads like nonsense. Malcolm makes a good commentary there, but when it can be "PROOVED" that self capacity can be cancelled by mutual inductance, this is a significant advance over that preconception, which is also held in common. It can be demonstrated that a multiturn coil has its q factor quite reduced by internal capacity as the frequency is increased which is reasonable. The converse situation is not so easily demonstratable. That would mean that a coil limited by its q factor will conduct more amperage than normally made possible by the line connections alone, by the additional influence of mutual inductance from an outside source, can in fact begin to illustrate the typically impossible barriers of resonance where a multiturn coil limited to a q of 8 can be made quite higher in actual operation. This also implies that a feasible method exists for overcoming traditional assumptions that an internal capacity can never be negotiated away by a cancelling reactance in totality. Those considerations again seem to only apply to those line connections alone, without taking into total consideration of how efficiency can also be made in the circle by simultaneous phasings for appropriate applications. Sincerely; Harvey D Norris ===== Tesla Research Group; Pioneering the Applications of Interphasal Resonances http://groups.yahoo-dot-com/group/teslafy/ _____________

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