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Re: Double layer primary

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 11 Apr 2005, at 7:51, Tesla list wrote:

> Original poster: Blake Hartley <teslaspud@xxxxxxxxx>
> all,
> I test my coil a few hours ago and encountered a problem. the coil
> worked well and performance nearly doubled, even without tuning, but
> tuning is very difficult due to the proximity of the layers of the
> primary. Is it OK to just leave one tap on the bottem layer on and
> just adjust the top tap, or is it necessary to move them so that they
> are equidistant to the ends of the tubing? Any help would be much
> appreciated.
> Cheers,
> Blake

Without performing a detailed analysis I suspect that one option
would alter the coupling constant in a different fashion to the other
but other than that, you are simply changing the inductance and there
is no difference between the two in that respect.