Re: [TCML] Choosing a Secondary Diameter

["DC Cox" <resonance@xxxxxxxxxxxx>]

Yes, the sharp edges of the copper strap/ribbon will produce more corona
than a smooth, rounded copper tubing.  Copper ribbon does work but round
tubing is a better choice from an engineering standpoint.

With small coils, yes, you can use ribbon, but on larger coils it puts your
sec coil at great risk.

Dr. Resonance

On Fri, Jul 18, 2008 at 8:41 AM, Mike H <mike8675309@xxxxxxxxx> wrote:

> On Thu, Jul 17, 2008 at 7:39 PM, DC Cox <resonance@xxxxxxxxxxxx> wrote:
> > I have used #28 AWG heavy build on a 4" coil and achieved great results.
> > Especially with an nst that has been unpotted, 12 kV, 180 mA running in
>
> On Thu, Jul 17, 2008 at 2:19 PM, bunnykiller <bunnikillr@xxxxxxx> wrote:
> > since you seem to be limited to 4,6,8" etc material, go with the 4" dia.
> >  Wind about 20" worth of #22 Double Formvar wire. You may want to precoat
> > the tubing with a polyeurathane varnish ( 1 coat) and let dry.
>
> Thanks for the feedback to all.. Looks like 4" is the recommendation.
> I plan to pre-coat to assist with winding since i have no experience
> with winding.
>
> I'm planning to use a copper strip (1" x .032") for my primary.  Does
> that have any impact on the secondary size that has been discussed
> here?
>
> Thanks
> Mike
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