Re: Building a Primary

To: tesla-at-pupman-dot-com
Subject: Re: Building a Primary
From: "Barton B. Anderson" <tesla123-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Sat, 18 Mar 2000 07:18:02 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme


>
> Original Poster: "David W" <Dav_W926-at-hotmail-dot-com>

Hi Dave, 

Sounds like your adding more turns to your primary? I did this 8 months ago.
It's pretty easy really. Make a nice cut with a tubing cutter on the two ends
you will connect. Also, cut a 1 or 2 inch piece of tubing (or solid copper
wire) that just fits "inside" the primary tubing. Coat the little insert piece
with flux and slide into one end of the primary 1/2 way. Then slide the other
end of the primary onto the piece sticking out and but up the two primary ends.
Use a torch and sweat solder the joint. If it ends up a little messy, you can
simply sand it flush and smooth. About a 15 minute job or so. Makes a nice
solid connection. The only note about this I would recommend is to ensure the
inserted piece of copper fits snug inside the primary ends. 

Bart 
>
>   
>     Does anyone have a good method of connecting the ends of copper tubing in
> a 
> primary when the primary is made of 2 seperate pieces of copper tubing? 
>
>     ~Dave