Re: [TCML] Ring Style Toroid Design

[Ed <evp@xxxxxxxxxxx>]

Can't answer your question but had the thought that filling in the space 
between the spokes by adding a disk of chicken wire or any other cheap 
galvanized wire cloth would emulate a solid metal plate.  Even cheaper 
but ugly would be to use aluminum foil wrap, maybe supported by 
corrugated paper sheet.
Ed


On 12/10/2017 2:22 AM, phil wrote:
> All,
> I'm currently assisting in the construction of a ring type toroid (60" 
> x 12") consisting of six tubes ( 
> https://www.flickr.com/photos/33962508@N03/ ). Using Dr. Antônio 
> Carlos M. de Queiroz's 'Inca' program ( 
> http://www.coe.ufrj.br/~acmq/programs/ ) and, along with some help in 
> its actual use from Bert Hickman, I now have a good idea of the 
> expected toroid's capacitance.
> Now the six rings or hoops obviously need supporting in free space, 
> and the conventional toroid method is a solid central disc in the 
> horizontal plane supporting the outside minor diameter tube.
> I wondered just how much this solid central disc contributes to the 
> shielding of the secondary, and if its replacement with support arms 
> (like wheel spokes - but only four of them at 12, 3, 6, 9 o'clock) 
> would leave the secondary more exposed to strikes, than if a solid 
> disc had been used?
> (The effect on the capacitance value is believed to be small, so left 
> out of the decision.)
> Regards Phil
>
>
>
> https://www.youtube.com/user/follytowers
>
>
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