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Re: tuning coils
to: Bob V
You can resonate at a higher harmonic, but you lose energy in the process.
Coils with a small top load tend to have resonant components at several
frequencies but they are not very efficient at generating max potential.
These systems operate like a transmission line with reflection of energy up
and down the sec coil. Coils with a large top load tend to resonant at a
single frequency and repress undesireable harmonics -- which is good.
They tend to operate as simple lumped LC systems and usually produce max
resonant rise per unit energy input. This is because they have less losses
and are more efficient.
Regards,
Dr.Resonance-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: tuning coils
> Date: Tuesday, February 09, 1999 7:01 AM
>
> Original Poster: Ed Phillips <evp-at-pacbell-dot-net>
>
> Tesla List wrote:
> >
> > Original Poster: Robert Volk <smrtmny2-at-earthlink-dot-net>
> >
> > Another question to you experienced coilers:
> >
> > Richard Quick had a post in the archives about tuning coils. My
question
> > is: Have any of you worked in this area? Is it possible to construct a
> > tuning coil at the 3rd or 4th harmonic of the frequency of the
secondary
> > transmitting coil? Ir seems Tesla said this was so in his patents. Help
> > from you veterans who've worked with these?
> >
> > Bob V
>
> Some time back someone posted the results of some harmonic measurements
> with a spectrum analyzer. Harmonics (due presumably to nonlinearity in
> the conduction of the primary gap or the secondary streamers) are
> present, but not very much power in them. If you look at CSN photos you
> will see that the harmonically-excited coils were small.
>
> Ed
>
> Ed
>