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Re: Elevator for TC



Tesla List wrote:
> 
> Subscriber: knardell-at-mailhost.accesscom-dot-net Thu Jan  9 22:37:52 1997
> Date: Thu, 09 Jan 1997 21:34:22 -0600
> From: Kevin <knardell-at-mailhost.accesscom-dot-net>
> To: tesla-at-pupman-dot-com
> Subject: Elevator for TC
> 
> I have this elevator with teflon mounts, it will raise or lower 12 inches.
> The motor runs on 110VAC and looks to be filtered well, another thing is
> that everything is mounted inside metal and can be grounded. I was thinking
> of putting my secondary on the elevator so while running the coil I could
> raise or lower the secondary inside the primary. I would be able to see the
> difference in sparks with the secondary coupling change on the fly.  Will
> this work and would the experiment be worth the trouble?
> It would not really be much trouble but I would have to cut a hole in the
> base of my platform for the elevator device and secondary coil.
> 
> Thanks in advance!
> 
>                                        Regards,
>                                             Kevin Nardelle
> 
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Kevin,

Assuming you can ground the outside of the elevator to the RF ground,
and if there are no sensitive electronic devices inside, it should work.
Remember that the RF ground is often spiking to RF potentials of
hundreds of volts, and that the metal shield may not adequately protect
the devoce from magnetic RF field coupling from the primary just above.
A simple scissors jack may provide a more practical, although not
real-time, way to make coupling adjustments. 

BTW, I've seen significant changes in performance with only 1/4" - 1/2"
changes in coupling... 3" is a BIG change.  

Safe coilin' to you!

-- Bert --