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Re: [TCML] secondary variable frequency
That actually makes perfect sense, although I am sure there isn't
much of an application for it (not on a TC anyway.)
> Hi Scott,
> Adding a toroid say just below the primary would have little effect on
> frequency, but any external object near the coil will lower the
> frequency a little (even a simple strike ring makes a minor
> contribution). Depending on geometry of toroid and coil, even raising
> the top terminal can lower the frequency. But as far as a cap between
> ground and the bottom secondary, the capacitance of the coil and the
> "new cap" would be in series. This would decrease capacitance and
> increase frequency. Now if an external cap was in parallel with the
> secondary then the frequency would lower (excluding all obvious hv
> Scott Bogard wrote:
>> Hey all,
>> I've got a theoretical question. Adding a top load lowers the
>> tesla coils resonant frequency, what about adding a bottom load?
>> Would putting a toroid or some kind of capacitor between the coil and
>> ground lower the coils resonant frequency? I think I may have
>> touched on this subject before, but for a different reason. In any
>> event, will a cap in series with the secondary (on the grounded end)
>> lower the coils resonant frequency, and is there any way to raise it
>> beyond what it naturally is (inductor in series possibly?) This is a
>> theoretical question, I'm not really that interested in the possible
>> negative effects on performance (although I am sure they are a
>> consideration.) Thanks.
>> Scott Bogard.
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