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Re: Vortex gap loss measurements

> I have metered a Jacob's ladder to watch the effects of arc 
> length and it showed voltage climbing as the spark rose. The 
> current hardly varied. The changes in arc length were pretty 
> significant and the voltage would have roughly doubled for a 
> change of around 10 in arc length. Agree with all your other 
> conclusions.

Of course, you were driving the arc from a current limited source (i.e. a
ballasted transformer of some sort)?