SG copper pipe trick

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Luc by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ludev-at-videotron.ca>

Hi guy

Just a small trick: For new member who want to build a spark gap
with copper pipe, use a pipe cutter with a dull wheel blade,
normally when you buy a pipe cutter you have 2 wheel one on the
cutter and often one in the adjusting knob, you could dull the
cutting edge with sand paper. For the first turn  tighten hard
the knob, this way you'll end up with a round end cut, less prone
to arcing.

Cheers,

Luc Benard