Re: Secondary breakout -is it necessary to rewind?

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

Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>" <srward16-at-hotmail-dot-com>

Is your primary flat or raised??  This really seems strange unless you have 
a vertical primary, especially for such a low powerd coil(5" aint bad for an 
ignition coil).  Maybe place a larger pipe around the lower half of your 
secondary to insulate it.  Ive pushed my coils very hard and something like 
this wouldnt even phase me.  If you look at my other post, i have arcs 
reaching down the entire coil!  But just run it some more and see what 
happens,  if there is any damage, i dont see why another coat of poly or 
epoxy couldnt fix it up.  Good luck.

Steve Ward


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Secondary breakout -is it necessary to rewind?
>Date: Tue, 09 Jul 2002 17:27:58 -0600
>
>Original poster: "Jolyon Vater Cox by way of Terry Fritz 
><twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>
>
>
>This Tuesday afternoon my 3" x 10 7/8" inch, 880 turn secondary suffered an
>intermittant breakout to the grounded end of the primary.
>
>The secondary was being run from my ignition-coil HVDC supply in 
>conjunction
>with with six parallel pop-bottle saltwater caps, with the primary tapped 
>at 8
>1/4 turns.
>
>Will I have to rewind the secondary? I have examined the area from which 
>the
>arc emerged with a magnifying glass and cannot see any evidence of cracked
>insulation or burning.
>
>This appears to be an intermittent fault that (as yet) only appears to 
>arise
>occasionally when the coil is made to produce large sparks i.e.>5 inches.
>Before the "incident" it was my intention to coat the secondary in Tuffkote
>epoxy varnish -in view of the present circumstance should I be 
>contemplating
>this and is varnishing at all likely to prevent the re-occurance of  an
>"occasional" problem of this type?