Re: [TCML] I think I ruined my 6" secondary.

[Chip Atkinson <chip@xxxxxxxxxx>]

Hi Kris.

If you fire it up, what have you got to lose?  If it shorts out you'll
still be able to sue the form if you strip the wire off.  Krylon at one
point in time made a high voltage varnish which seems pretty good based on
my limited experience.  If you could find some of that (perhaps Mike
Hollingsworth has some) that may be an option for preserving/rescuing your
coil.

Chip

 30 Jun 2008, Kris Grillo wrote:

> I hand wound a 6" acrylic form with 22 gauge a few months ago. It
> wasn't the greatest winding job I had ever done. There were a few
> turns that were a little loose, but over all, turned out pretty damn
> good for not building a jig. I started coating it with poly and once I
> got about 10 coats on it I noticed it was kind of getting a little
> rough from dust and whatnot, so I grabbed a piece of 400 grit sand
> paper and gave it a light once over and began coating it again. Thats
> when I noticed that I had sanded the insulation off in some spots on a
> few of the loose turns. There are maybe 3 or 4 of these spots on the
> bottom of the coil and 4 or 5 spots in random places along the entire
> length. I was so bummed about it that I shelved the project and
> haven't given it much thought since.
> 
> I have since finished two other smaller coils
>  and would like to work on this one again, but the secondary makes me nervous. I was thinking of putting about 100 coats of poly on it and keeping my fingers crossed. I was hoping to put around 4KVA through it. Has this ever happened to anyone else? Is this secondary salvageable or should I scrap it and save up for another acrylic form and a new spool of 22 gauge (might be awhile, I'm broke at the moment)?  Any suggestions?
> 
> ~Kris
> 
> 
> 
> 
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