Re:Re: Biggg coil's opening night

["Al Hassick" <uncadoc-at-juno-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Geez Kevin, 14 foot sparks don't sound like a problem to me! Very
impressive!  Al.

On Sun, 03 Sep 2000 21:25:52 -0600 "Tesla list" <tesla-at-pupman-dot-com>
writes:
> Original poster: "Kevin R Eldredge" <kreld-at-juno-dot-com> 
> 
> All
> 
>   At last the Biggg coil was assembled today & first firing was 
> around
> 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 
> with
> the voltage/current relationship with the high voltage transformer.  
> I've
> only been able to get 150 volts into the primary at over 100 amps.  
> A
> large range of inductive ballasting was used.  More time tommorow to 
> play
> with it.
> 
>  Max spark has been 14' to a ladder and the spark was not played 
> out,
> quite heavy in current.
> Also, I'm having 4 to 5 disscharges at all times regardless of 
> coupling
> and a breakout rod hung off the toroid, bigger toroid needed.
> 
>   Good news on the 480 break sync rotary.  The stationary electrodes 
> are
> 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 
> to
> replace these after tuning it up, but so far so good.
> 
> Some people were wanting to see it fire when done, I have not 
> forgotten,
> 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 & 
> P.V.C.
> frame
> 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.
> 
> 
> 
> 
>