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Re: [TCML] Tuning idea

This idea has been tossed around before.

The plates would have to be fairly large.  The rotor would have to be of
an insulating material such as G-10 phenolic.  Due to the high voltage,
the system would have to be placed in a grounded metal cabinet.  With all
the time and machining required the costs would be very high, perhaps
$800-$1,000 in machine time and materials.

Simply for economic reasons this is not viable.  Much less expensive to
just make a tap for a copper tubing primary, so this is the method almost
everyone uses at present.

Dr. Resonance

> Hi all
> ive had an idea about tuning: instead of using a variable
> primary tap, and
> having to cut power change tap position and reapply power
> etc, etc, why not
> use a variable tank capacitance... a high voltage trimmer
> cap coulg be made
> out of any flat sheet material (hard disk platters cut in
> half?) and placed
> in paralell with the tank cap. tuning could be done while
> powered up and
> would be as simple as turning a wheel... you could also keep
> the coil in
> tune as spark length/capacitance to earth increases as arcs
> are drawn off.
> is this a new idea or has some one allready thought of it in
> the past and
> put it in the "couldnt be bothered" corner?
> ben
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Dr. Resonance

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