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

["DC Cox" <resonance@xxxxxxxxxxxx>]

You can probably save it if you use a special coating designed for
transformer work, such as Dolph's AC-43 which has excellent anti-tracking
properties and is especially made for magnet wire.  Very high dielectric
strength too.  I carry it in gallons and could spare a quart or pint.  3-4
coats is all you need with this.  contact me off-list.

Dr. Resonance




On Mon, Jun 30, 2008 at 6:08 PM, Kris Grillo <kristianisawesome@xxxxxxxxx>
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
>
>
>
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla