Re: Does a "regulating" coil really waste energy?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

I'm no EE, but I think an air core coil wound with a
few turns of copper tubing or thick, solid copper wire
would have negligible losses. I'm assuming this
hypothetical tuning coil is arranged so that its axis
is at right angles to the axis of the primary and
secondary. If the primary is tapped at its best turn,
the tuning coil could be tweaked by slightly
stretching or compressing the turns, like a stiff
slinky, thus avoiding the need for a second moveable
tap. I constructed both of my most recent Tesla coils
so that I can clip to any spot on any primary turn, so
an outboard tuning coil would be redundant. Given two
possible approaches to the same problem (like tuning),
I prefer the simpler path.

Regards,

Greg
http://hot-streamer-dot-com/greg

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Jolyon Vater Cox by way of Terry
> Fritz <twftesla-at-qwest-dot-net>"
> <jolyon-at-vatercox.freeserve.co.uk>
> 
> 
> Does a "regulating" coil or off-axis inductor
> actually waste energy?
> 
> If the coil is primarily an inductive reactance
> isn't the energy temporarily
> stored  in the magnetic field rather than
> dissipated? Furthermore, is it not
> possible the non-coupled flux could be actually
> advantageous from the
> voltage-boosting viewpoint, acting as inductor in
> effectively series with the
> secondary capacitance ACROSS the magnetic coupling
> of the primary and secondary
> coils - rather in the same manner that the
> "leakage"reactance of the HV
> transformer primary is made to resonate with the
> capacitive reactance of the
> tank capacitor in a resonant-charging TC set-up?
> 
> 
>