Bill Aycock wrote:
> Andy--
> The Tesla coil is really two coils, with the primary usually wound as a flat
> spiral as a disk at the base of the other, which is a vertical tower. I
> think that what you are calling a "Fan" is the primary.
> Bill-W4BSG
>
Bill is right. That's a flat spiral or inverted cone primary, and the 4
"blades" are the supports for the turns. Cardboard on a quick and dirty,
some nicer insulating material for others (I use HDPE cutting boards).
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