Re: [TCML] Thumpers Toroid

[DC Cox <resonance@xxxxxxxxxxxx>]

They work just fine on even DC or 60 Hz.  Used a lot in high potential
substations.

Essentially you are integrating the surface area (a calculus trick) using a
number of individual elements.  A typical spacing is 1.5 - 2.0 x dia. of
each element.  This can be calculated using finite element analysis to
determine best configuration for each application.

I prefer to use 3.0 to 4.0 times the sec coil dia. for good toroid
performance --- either spun alum or integrated element torus as you are
describing.

Dr. Resonance





On Wed, Jun 30, 2010 at 8:29 PM, jimlux <jimlux@xxxxxxxxxxxxx> wrote:

> Phil Tuck wrote:
>
>> I am considering a tubular example like Finn's recent "Thumper has
>> utilized.
>> How does the ROC of these toroids relate to the level of charge they can
>> retain? A conventional 8 inch ROC will support "X" amount of charge before
>> breakout, but the tube that is used with these tubular designs has a much,
>> much smaller ROC, 0.5 inch for example.
>> So does the overall profile curve of a tubular type of toroid act somehow
>> as though it is just a single surface? In other words would the level of
>> charge that a tubular toroid supports be the same as a conventional toroid
>> (overall size for overall size, roughly) Also is the resulting pF
>> capacitance value comparable between both types?
>>
>> Just a last thought but all of these I have seen are on DRSSTC or other SS
>> stuff, are they just as usable on old style RSG 80 Khz technology or do they
>> prefer a high frequency coil?
>>
>> Regards
>> Phil
>>
>> I would think so.. the charge is mostly a function of the "gross size".
>
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