Re: [TCML] Secondary Repair Question

[Brandon Hendershot <brandonhendershot@xxxxxxxxx>]

    On much closer inspection, there were actually many spots on the coil that must have had a bubble in the varnish, because those spots were completely exposed. If there were racing sparks, they definitely would have jumped between these weak points. And for the most part, they have.
    Also, when I started to scratch and scrape (similar to your Scotchbrite method) at the coating near arcing points, I found that the black burns were in the coating, not on the wire itself. Great news.
    I think as soon as I finish up with cutting/filing out any other imperfections in the first coat, a few more PROPER coats of Dolph's over the entire thing should fix it up just fine.

Comments/concerns still always appreciated.
Thanks!

--
Brandon H.
teslacoilers.blogspot.com

On May 2, 2011, at 2:31 AM, Yurtle Turtle <yurtle_t@xxxxxxxxx> wrote:

> 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.
> -- 
> Brandon H.
> teslacoilers.blogspot.com
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