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>>~My spark gap is a series gap made of 8 3" pieces of 1" copper pipe
>>~There is 0.018" between each piece.

That's the same type I am planning to build.  How did you gauge the
spacing between the pipes?  Is your gap snapping and sparking well or
does it buzz?

T>>~Here's another general toss up question:
T>>~If your secondary shorts out between two windings (as evidenced by arcing
T>>~between two windings) is the tuning kaput?