Re: [TCML] Toroid height, What's best

[DC Cox <resonance@xxxxxxxxxxxx>]

I use 1/2 minor toroid dia value x 1.5     This is the open distance from
base of toroid to last turn on the coil.
With your 5" minor dia, then 1.5 times x 2.5  =  3.75 inches base toroid to
last turn on the coil.


Dr. Resonance



On Mon, Feb 22, 2010 at 5:41 PM, Shaun Epp <scepp@xxxxxxx> wrote:

> Hello Group,
>
> Well I just bought a new toroid, It came by mail today.  I was wondering if
> I need to change its height relative to the top winding of my secondary, I
> assume that this changes the self capacitance of the secondary and flashover
> voltage, but I'm not sure.  Could some experts enlighten me.  Right now the
> bottom of the 16" x 5" toroid is 1 inch above the top windings of my 4.25"
> dia secondary, and the secondary has 22.25 inches of windings.
>
> It's too cold outside for me to run tests right now, I'll have to wait 1.5
> months for that to change.  But spring is coming :-))
>
> thanks,
>
> Shaun Epp
>
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