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Re:Re: Biggg coil's opening night
Geez Kevin, 14 foot sparks don't sound like a problem to me! Very
On Sun, 03 Sep 2000 21:25:52 -0600 "Tesla list" <tesla-at-pupman-dot-com>
> Original poster: "Kevin R Eldredge" <kreld-at-juno-dot-com>
> At last the Biggg coil was assembled today & first firing was
> dusk. The 2' x 10' secondary with 7' dia toroid, stands 12' above
> ground. Performance is not up to snuff yet. I'm having problems
> the voltage/current relationship with the high voltage transformer.
> only been able to get 150 volts into the primary at over 100 amps.
> large range of inductive ballasting was used. More time tommorow to
> with it.
> Max spark has been 14' to a ladder and the spark was not played
> quite heavy in current.
> Also, I'm having 4 to 5 disscharges at all times regardless of
> and a breakout rod hung off the toroid, bigger toroid needed.
> Good news on the 480 break sync rotary. The stationary electrodes
> 3/8" tungsten and the rotating electrodes are 1/2" steel rollers
> from a
> large roller bearing. It was thought that tungsten would be needed
> replace these after tuning it up, but so far so good.
> Some people were wanting to see it fire when done, I have not
> I just want the coil performing up to par for its public unleashing.
> Some of the specs of the coil are as follows:
> Secondary wound with 6000 feet of #14 T.H.H.N. on an open wood &
> Inductance 96 mH with 15 ohm dc resistance. Weighs over 200 LB
> Primary coil 9 turns 5/8" copper tube tapped at 6 turns
> 0.173 uF 80 kV Maxwell cap
> H.V. transformer 23,000 volt -at-15 kVA
> 2 H.P. sync rotory 480 break
> Coiling in Oklahoma
> Kevin E.