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Re: Off-axis primary tuning



Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 11/27/02 12:52:36 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:


>Has anyone experimented with an off-axis variable inductor to fine tune the
>primary while the TC is operating at full power?  If so, please share your
>design and results.
>
>I am especially interested in a design with no moving contacts, such as a
>pair of spiral coils with remotely controlled variable spacing to change the
>mutual inductance.
>
>Thanks,


Steve,

A number of folks have tried remote tuning during a coil run,
by using external inductors,
flexible primaries, rollers on the primary, etc.  As far as I know,
no spark length benefit was seen.

John