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RE: corona/spark breakout
Original poster: "Basura, Brian by way of Terry Fritz <twftesla-at-uswest-dot-net>" <brian.basura-at-unistudios-dot-com>
Your problem isn't with the wire or bolt. It's with your spherical topload.
A sphere doesn't providing electrostatic shielding to the top turns of your
secondary like a toroid does. If you want to continue using the sphere then
make a small toroid and place it directly on top of your secondary below
your sphere and bolt.
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Thursday, February 22, 2001 11:12 AM
Subject: corona/spark breakout
Original poster: "Matt Skidmore by way of Terry Fritz
I am having a problem with the connection from my secondary to the topload
of my coil. i have the secondary varnished until the last few inches where
the secondary wire runs up to a bolt in the pvc cap.
its not a very good spiral or hookup and a get large corona and many time
sparks coming off these last few turns. i was wondering if it you be a
good idea to solder the wire to a flattened peice of copper and glur that
to the pvc, and then use an insulated wire to carry the rest of the way to
the bolt. the insulated wire also being soldered to a flat peice of copper
and then rubber banded to the one glued to the pipe. i have used the same
meathod to ground my coil with good results. and in case your wondering,
the bolt running inside the secondary has a THICK layer of insultaing
sealant on it along with 4 baffels inside the secondary.