Re: 1500-3000 turn coils

["Luc" <ludev-at-videotron.ca> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi Mark

That's normal because your coil is especially long and an inverse cone
primary give more coupling to the top winding. By the way  a coil with a
10/1 ratio could make a perfect bipolar.

Luc Benard

Tesla list wrote:

> Original poster: "Metlicka Marc" <mystuffs-at-orwell-dot-net>
>
> antonio,
> i have often wondered if the shape of a inverse conical primary produces
> a somewhat inclined magnetic field? the reason i ask is that on my 10-1
> "candle stick" coil, an inverse cone produced a much better discharge
> then a flat spiral. i tried many diameters and tubing sizes for the flat
> spiral but the cone always did better. i thought that maybe this could
> be due to the field inclining into a point "so to speak" thus causing a
> stronger couple or density in the thin secondary windings? of coarse i
> could be wrong (it has been said that i think to much). if you could
> enlighten me it would be greatly appreciated.
> marc