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Re: PVC Pipe

Original poster: Karl Lindheimer <karl@xxxxxxxxxxxxxxx>


I would have to concur with your statement that sealing the secondary windings with poly or lacquer is a very good idea. The finish provides: 1. physical protection of the secondary windings. 2.
Mechanical aid to prevent windings from slipping or uncoiling. 3.
Insulation against racing sparks and arcing to primary. 4. A nice finish to look at.


I also nearly agree with your statement that drying and sealing the secondary former is usually not necessary. Right now, in the Northeast, the humidity levels are under 20 %. You won't get much better even in a drying oven. The only time I would recommend oven drying and then sealing would be if the PVC tubing were exposed to very humid conditions outdoors for a while. Even then, it probably would not matter with the average coil.



On Mar 11, 2005, at 5:55 PM, Tesla list wrote:

Original poster: "Lau, Gary" <gary.lau@xxxxxx>

I would have to agree.  But I do still like to apply several coats of
polyurethane over the wound secondary to keep things from moving about,
and general aesthetics.

Regards, Gary Lau

> Original poster: "Daniel McCauley"
> I don't think you have to worry about drying and sealing your PVC
pipe.  To
> be honest, i think its a waste of time.
> I've built plenty of coils in the past years without doing this and
> never had a problem.
> I wouldn't waste your time on that.
> Dan
>  > All,
>  > Thanks a lot for all the info on PVC pipe. They weren't kidding
when they
>  > said everyone on here is nice and helpful! From what you've told me
>  > from what I've seen other people using on their very successful
TC's, I
>  > think I will just go ahead and dry and seal white schedule 40 PVC
>  > and out and use it. It certainly is cheap and easy to find.
>  > Paul Brodie