RE: toroid inner

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

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.
Tom L.

 > Original poster: Mddeming-at-aol-dot-com
 >
 > Hi John, All,
 >
 >      I was wondering how the capacitance of a
 > pizza-pan-centered toroid compared to that of a cross-bar
 > toroid and each of them to that of a bicycle-wheel-centered
 > one? Seems like there would be a few pf difference.
 > No? Also, since the central "disk" is at least partially
 > inside the "internal" magnetic field of the secondary would
 > its being made of steel or aluminum have different effects?
 >
 > Matt D.