Re: Highest secondary to spark length ratio?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


If you add the height of the driver coil to the resonator length --- not
much difference.  Just uses more horizontal space.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
 >
 > I believe Richard Hull has you all beat.  Not a tesla coil in the
 > classic sense, but a magnifier.  One of his
 > later magnifier designs has something like a 12" to 15" height resonator
 > coil putting out arcs at about 10 feet.
 > That more than a 8:1 ratio.  Most of his magnifier designs (especially
 > the later ones) were putting out more than
 > 5:1 spark to height ratios.
 >
 > Dan
 >
 >
 >  >I am interested in the longest sparks (hey - aren't we all) in
 >  >comparison to the secondary winding length with a classic TC. Mine does
 >
 >  >96 inches for a secondary of 32 inches ie ratio of 3 times. I have
 >  >heard of ratios up to 5 times but have not seen any documentation of
 >  >this. Has anyone got pictures of coils pushed to higher ratios that
 >  >show the distances clearly? (I need a new desktop background).
 >  >
 >  >Cheers
 >  >Peter (Tesla Downunder)
 >
 >
 > Peter,
 >
 > My 6" coil, quite similar to yours, does 104" sparks with a 27.6"
 > winding
 > length for a ratio of 3.77.
 >
 > Ed Sonderman
 >
 >
 >