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Re: Merging copper tubing for Primaries
Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-uswest-dot-net>" <tesla123-at-pacbell-dot-net>
Hi Bart Mc,
I did exactly as you, except I sweat soldered. I cut a 1.5" length of solid
copper wire (#6)
which fit inside the 0.375" primary tubing. Butted the ends together and
used a torch to solder
together. Works great. Of course, crimping will also work but the the crimp
may come loose over
time and handling, so I would suggest soldering with a torch. Then, simply
sand off any solder
bumps should you have any.
The other Bart
Tesla list wrote:
> Original poster: "Bart by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> On my first coil, I had to merge two 50' rolls of 0.25" copper tubing in
> order to amount to the right length for my primary. I simply cut a peice of
> wire (six gauge I think?) that formed a tight friction fit inside the tubing
> in order to join the two rolls. I am making a new primary, and I am
> wondering if I should solder the rolls together instead. I plan to use wire
> to join them again, and maybe solder ontop of that joint, but I do not know
> what to do. I know my soldering iron will never complete the job. Any
> suggestions? Is it necessary? Should I buy a propane torch ...? What
> would be the best for me to do while I build my primary? Thanks you in
> advance for any and all help.
> Bart Mc.