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>I'm having a problem with mine! 100 turns of 22 A.W.G. on the 2501
>core from Hosfelt. I increased my spark gap spacing from 0.016 to
>0.030 per gap (10 electrodes, 9 gaps). The first thing that happened
>was the wire on the toroid connected to the high side of my primary,
>shunt spark gap, blasted a hole through the 1/8" plexiglass between
>the toroid and the pressboard base. So I put in some 3/8" plexy under
>it. The spark jumped arround. I put it in transformer oil, in a
>polyethylene container, on the 3/8" plexy on the 1/8" plexy. ZAP thru
>all to the base! I raised the toroid up off the tupperware with a 1/8"
>plexy disc. It finally ran for a few minutes before arcing through. I
>raised it all on 1"x2" wood blocks. It still arced through!
>
>My main discharge toroid 28" x 4" is putting out 3' (straight line
>measured) air discharges! and 34" arcs!
>
>Has anybody else had this problem?
>
>	supprised jim

Jim,

I am running at 14,400 volts.  My RF chokes are wound with about 20 turns of
14 gauge wire and are sitting on .25" acrylic which is on plywood.  I have
never had a shorting problem with them - several other places however.

Ed Sonderman