RE: [TCML] Tesla's topload

["Phil Tuck" <phil@xxxxxxxxxxx>]

Derek, et al
If it did then people would have noticed an anomaly in the tuning figures by
now I think. We know that best performance generally occurs when the primary
is set to resonant lower than the secondary because of the streamer loading
and this normally is by an amount of around 1.5pF per foot. However, if what
you say were right, then would we not have noticed additional factors at
play on the bigger coils that could not be accounted for purely by streamer
loading alone?

Regards
Phil Tuck

www.hvtesla.com



-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Derek, Extreme Electronics
Sent: 06 April 2011 05:49
To: Tesla Coil Mailing List
Subject: Re: [TCML] Tesla's topload

This does raise an interesting question, does the capacitance of the topload
increase as the voltage on the topload increases because the field around
the topload adds to the effective external dimensions of the topload, so
increasing capacitance ?

     Derek


On 06/04/2011 01:48, bartb wrote:
> I dunno, it would be interesting to model: say of sphere's with 
> diameters equal to a corresponding toroid minor diameter, but with the 
> spheres spaced apart so that 1/2 of the diameter of each sphere 
> intersects the other creating large bumps of sorts. Unfortunately not 
> something Javatc can do as the topload sphere's would have to be 
> offset from center (not something it can do now). Possibly Paul or 
> Antonio's software could do a quick and dirty comparison.
>
> Take care,
> Bart
>

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