secondary suicide?

From:  Jeff Corr [SMTP:corr-at-enid-dot-com]
Sent:  Saturday, April 11, 1998 1:43 PM
To:  tesla-2 list; tesla list
Subject:  secondary suicide?

Last week I ran into a problem I had never seen before.
About an inch up from the bottom of my secondary,
an arc started to appear when the coil was running 
between 5-10 turns of wire.  This started melting the 
PVC of course, so I turned it off and unwound the coil
up unto that point, removing those turns.  All went fine
until last night where the same thing occurred about
half-way up the tube.  I put solder between the space which
was arcing (about 8 turns).  I figured it would stop the arcing
at least by shorting those turns out of the secondary.
It did there, but 10 minutes later another "leasion" formed
in another place on the tube about 4 inches below the 
second one.  What is causing this??

Jeff Corr
2114 Monitor
Enid, OK 73703