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Re: Any Reason For This???



>Fellow sparkers,
>
>While firing my 6" coil the other night I decided
>to put my earlier 4" on a chair so that the top bushing
>was about 2' away from the 6" coils torroid just
>to see what would happen.  I expected the arcs
>to strike the top terminal of the 4" and who knows
>maybe what else?   I was suprised that rather than 
>hit the top terminal the arc took a direct path
>about a third way down the 4" coil puncturing a 
>hole through the Behr build 50 and stayed there
>like it was glued solidly.  Anyone have a idea why
>this arc missed a brass terminal that was about 6"
>closer and took the hard road through epoxy and
>formvar to find happieness?
>My explaination to the bystanders that night was
>"RF is some weird stuff".  Perhaps someone could
>be a little more technical.
>Glenn

Hmmm...I'll bet at that point on the second coil there was a harmonic of the
first coil's resonant frequency.  What frequencies do the two coils normally
resonate at with toroids in place?  Was the base of the second coil grounded?



Charles Brush