Re: toroid inner

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

Original poster: "Antonio Carlos M. de Queiroz" <acmq-at-compuland-dot-com.br> 

Tesla list wrote:
 >
 > Original poster: "Tom Luttrell PWRCOM" <tom-at-pwrcom-dot-com.au>
 >
 > According to Antonio's Inca program a 130mm (5") x 380mm (15") toroidal
 > ring with a flat plate in the centre has a total capacitance of
 > 22.0385092562 pF.
 > Without the flat plate this drops to: 21.9997926390 pF.
 > A difference of 0.0387 pF, i.e. next to no difference.

Just a detail:
A 0.38x0.13 (diameters) toroid has 17.2109 pF
With the center closed I get 17.2123 pF
The description would be:
Ctoroid terminal 100 0.125 0 0.065 0 360
Lcenter terminal 100 0 0 0.06 0

Your toroid has 380 mm as the diameter of the center of the tube.
Ctoroid terminal 100 0.19 0 0.065 0 360
Lcenter terminal 100 0 0 0.125 0

Antonio Carlos M. de Queiroz