Re: 2 layer primary puzzle

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "David Wilson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <david-at-computan.on.ca>

I dont quite understand what you mean by winding inwards and outwards , but
if you want a
precision resistor ( which you dont want) you wind the first half in one
direction and the second
half in the other direction to cancel the effects of the inductance. This
is how manufacturers
made low resistance devices with no inductance.

David

Tesla list wrote:

> Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Gary.Lau-at-compaq-dot-com>
>
> Wait a minute.  If the top and bottom coils are joined at the center,
> the two coils NEED to be wound in opposite directions - one CW spiraling
> inward, and the other CCW spiraling inward.  Or put another way, one CW
> spiraling inward, and the other CW spiraling outward.
>
> Gary Lau
> MA, USA
>
> Original poster: "David Wilson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <david-at-computan.on.ca>
>
> Hi James ,
>   The direction of the winding is important, if the first layer is CW
> and
> the 2nd layer is CCW
> then you have a precision resistor with no inductance.
>
> cheers David