RE: Primary Heating

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-compaq-dot-com>

I wonder if a conical primary, where the inner turns are less under the
influence of the outer turn's magnetic field, can be shown to have lower
proximity-effect losses?  

Since the losses necessary to heat up a significant length of copper tubing
probably are significant, would the losses in a primary segment (just the
innermost 2-3 turns, since Litz wire can't be tapped) constructed of Litz
wire be significantly less?

Gary Lau
MA, USA