Sparking off the secondary problem (more info)

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

Original poster: sean <sean-at-nc.rr-dot-com> 

I covered the burn spot with electrical tape, This prevented this spot
from burning, but it sparked from other places on the secondary.  I
might have turned it on when the topload was not connected properly for
a few seconds.  Is it possible this would ruin my secondary?  I have put
a coat of polyurethane on, should I do this a few times to further
insulate it? or should I try to cover the entire thing with electrical
tape or "stretch wrap" from office max.

Any info greatly appreciated, and thanks for all the info before, it's
likely I wouldn't have been able to build it at all without the help!

On Fri, 2003-10-24 at 21:42, Tesla list wrote:
 > Original poster: sean <sean-at-nc.rr-dot-com>
 >
 > Hi, I finally got my Tesla coil working.  It was going good (about 2
 > foot sparks) Until I took the toroid off to try just a aluminum pan.
 > This worked, but not well. anyway, I put the dryer duct back, and
 > instead of working normally, it shot sparks 2/3 of the way up the
 > secondary, and smoke (nothing from the toroid).  I turned it off,
 > checked the connection between secondary and toroid, and tried again,
 > same problem.  Any ideas?  Is my secondary ruined?  It measures 55 ohms
 > from ground to toroid still.  I'm afraid to turn it on.
 > Thanks.
-- 
sean <sean-at-nc.rr-dot-com>