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Re: Tesla Coil RF Transmitter

To: tesla@xxxxxxxxxx
Subject: Re: Tesla Coil RF Transmitter
From: "Tesla list" <tesla@xxxxxxxxxx>
Date: Sun, 25 Sep 2005 03:36:23 -0600
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Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>

These standing waves may be highly surpressed or eliminated with a large enough top load toroid. That's why modern coils don't really act as transmission lines and do not act as "slow helical resonators". They act as "lumped sum" systems and do not exhibit resonant rise to any large degree. I think that's why Tesla designed such a large topload for his Wardenclyffe system.

The large topload and proper coeff. of coupling (not excessive, ie < 0.18) keep the coil operating at a single freq and prevent freq. splitting which produces the undesireable "transmission line" effects, ie, voltage resonant rise due to the Ferranti effect.

Older "physics textbook" and other TCs did have standing waves due to their very small toploads.

It might take quite a topload to surpress these effects in a resonator as large as the earth though.

Dr. Resonance

Any resonant system will exhibit standing waves at certain frequencies. I have a feeling you are of the oppinion that the earth has no resonant mode or frequency. Is this so, and why?
Dan
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Subject: Re: Tesla Coil RF Transmitter

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