Re: Regulating coil: here's a big one!

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 5/27/02 10:21:07 AM Eastern Daylight Time, tesla-at-pupman-dot-com
writes:


>
> Technically, using a regulating coil "wastes" some of the energy in the
> primary
> circuit as its magnetic field is not coupled into the secondary. However,
> this
> loss might be offset by the ability to fine-tune the primary circuit's
> resonant
> frequency as the coil is actually operating.

Scott,

Nice unit !
The off-axis inductance of the regulating coil reduces the coupling, 
but the coupling can be increased back to normal my lowering 
the secondary relative to the primary.  If one is critical about
these matters, one could devise an electro-mechanical system
which raises and lowers the secondary remotely and to the 
correct amount, as the regulating coil knob is turned, to keep
the coupling the same at all times.  

Cheers,
John