Re: Primary windings

["Kelly & Phillipa Williams" <kellyw-at-ihug.co.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi experienced ones,

(I am in the process of building a TC.) I have two 15 kV 30mA NST's as a
power source
and I am wondering if I can use copper tubing of OD 3/16 ths of an inch for
the primary coil
in the from of an inverse conical spiral. Is this too large?

Also, what is a good cheap source for secondary coil windings? I have both
the primary
and secondary windings from microwave oven transformers available as a
possible source,
are either of these suitable?

Thanks heaps,

Alan Williams. (kellyw-at-ihug.co.nz)