Re: Magi initial design

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


Bart:

If I understand correctly, JavaTC includes this "shielding effect" so the
10% does not have to be deducted?

Dr. Resonance

 >
 > Just for the record since Dr. R. approaches the toroid C in-situ of a
coil,
 > both Fantc and Javatc actually find the effective capacitance of the
toroid
 > in-situ with the coil as well as it's surroundings, distance from ground
 > level, etc.. The programs don't assume any particular percentage, they
 > actually compute the effective capacitance. In Javatc, the topload
 > capacitance identified is what it is. The value of Ces is where the
topload
 > and everything else is pulled in and the work is performed to compute the
 > effective system capacitance.
 >
 > Bart
 >
 > Tesla list wrote:
 >
 > >Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
 > >
 > >Remember, atop a Tesla coil a toroid will actually have a capacitance 10%
 > >less than it's free air capacitance.  The coil below acts as a shield for
 > >the electrostatic lines and reduce the cap value approx 10%.
 > >
 > >We measured this value for most all coils with a toroid to coilform dia.
 > >ratio of 2:1.  7.5% works good if the ratio is 3:1.
 > >
 > >Some programs may address this and automatically deduct it but you need
to
 > >ask the programmer if this has already been deducted in his program ---
some
 > >don't.
 > >
 > >Dr. Resonance
 > >
 > >Resonance Research Corporation
 > >E11870 Shadylane Rd.
 > >Baraboo   WI   53913