Reducing toroid size

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

Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>


I am getting 3"-4" from my 3"dia x 10 7/8"high 440 turn secondary but then, I
am using a massive 2 foot bicycle wheel as a toroid; I feel that

the setup takes up too much space for such a modest performance and it would be
desireable to reduce the physical size of the TC to some extent.

Would it be possible to get same performance (or better) with a much smaller
toroid if the secondary had same area but was wound with finer wire eg. 880
turns of 0.011" diameter wire instead of the 440 turns of 0.022" diameter wire
that I am presently using?

I have calculated that this will quadruple the secondary inductance so I will
have to quarter the toroid capacitance to keep the secondary in tune -so will I
have to quarter the physical size of the toroid to accomplish this?