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Re: [TCML] Secondary Repair Question

Hey---
If you need something for a really bad burn, carefully cut out the burned sections of the affected turn sand dress the ends of the wires so they don't touch and create a shorted turn. Shorted turns are the pits. Then take the two ends of the adjacent good turns and solder them carefully in the gap. Check with an ohmmeter to make sure you used the right wire ends. I made a hole in the form and stuck the twisted ends into the interior of the coil (a relatively field-free region) and soldered them there. Then trim everything up nicely and coat with epoxy. It's ugly, but mine has been working for 12 years or so. I have a good picture--if you would like one let me know how to get it to you. Good luck, but it's not hard if you're careful. 

---Carl

PS--Avoid  LIKE  THE  PLAGUE  jumping arcs to the secondary coil.





I've successfully repaired mine by cleaning it with a Scotchbrite pad and
alcohol, then recoating. Yours looks worse than mine did, but you still may get
away with it. If you choose to sand, I'd be very careful to clean all of the
sanding grit, as I've heard some fine sandpapers use a conductive grit. It can't
hurt to try.



----- Original Message ----
From: Brandon Hendershot<brandonhendershot@xxxxxxxxx>
To: Tesla Coil Mailing List<tesla@xxxxxxxxxx>
Sent: Sun, May 1, 2011 5:15:36 PM
Subject: [TCML] Secondary Repair Question

Hi All,

The last time I ran my coil a bunch of racing sparks caused some substantial
damage to my secondary. I want to try and fix it before I go and rebuild it
or just make another. Could I just patch it up with some Dolph's AC-43? Or
do I NEED (note the emphasis on need) to sand it all off, do something about
the carbon/char, and then re-coat?

Thanks everyone!

P.S. I posted some pictures of the damage on my TC blog. The link's in my
signature.


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