Re: breakout points

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

Original poster: "Dr. Resonance by way of Terry Fritz <teslalist-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com>


The usual culprits are improper tuning and improper coupling, but since this
was a working coil without problems, I would suspect dust on the sec.    The
sec. coil in a large system is stressed heavily and dust or anything such as
a long hair across several turns may cause breakdown.

Don't bother with the insulating rings.  That would only be a bandaid on a
problem.  You have to find the problem first and fix it.  Perhaps do
retuning at low power and then do coeff. of coupling tuning (raising sec.)
at 30% variac power.

If racing sparks persist for too long you might have already done
irrepairable damage to the sec. coil.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913