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Re: [TCML] Why don't big Tesla coils use helical primaries?
On 8/31/11 10:24 AM, mrapol@xxxxxxxxxxxx wrote:
I've wondered why helical primaries aren't common in medium to large
They are used.. I think that adjusting the tap point on a pancake is
easier, though. (for mechanical reasons, not the procedural difficulty)
Can't over-coupling be moderated by enlarging the diameter of the
primary, or by using a more insulating coil form?
Yes.. you can make the primary larger in diameter, or lift the secondary.
Insulation doesn't change the coupling.
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