Cylinder Static Spark Gap

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Original poster: "Glen McGowan" <glen.mcgowan@xxxxxxxxx>

Trying to build a Cylinder Spark Gap out of a 6" piece of PVC (it's 
actually a coupler not an actual piece of pipe). Currently using 1" x 
4" (ish) OD Copper pipe. Between 6 and 8 electrodes. There must be an 
easy way to layout and drill the holes. I've tried to use exact 
measurements but I didn't get the results I was looking for (which 
means I can't figure out the measurements). I've resorted to trial 
and error which I'm not particularly impressed with. This stink'n 
thing is making me cross eyed.  I'm almost to the point of unplugging 
the dremel and beating it against the garage floor. Figured I'd drop 
the list a line and see if some of the veterans could show me some tricks.