8 or 12" Aluminum Irrigation pipe will work. but god help you if you
don't have a friend that can Tig weld, And most welders will burn
right through the thin material.
A welding shop is not a machine shop, There is a difference. Machine
shops use 3 decimal place inchs, Welders usually measure stuff with
cubits.
Aluminum solder is practically useless. It is more fessible to form
the ends with a bent lip and rivit them into the pipes. Which is
probably what you would have to do as the inner conductor would still
be formed from copper, which will not weld to aluminum. It is also
fessible to form the end of the pipe into a wall for the top and
bottom, but I am sure this requires some large piece of equipment and
some heat.
Some of the so called aluminum solder claims to bond aluminum to
copper, but don't try it unless you are willing to waste your
material.
On 7/23/05, Neal Newman <[EMAIL PROTECTED]> wrote:
> Hey Kevin
> You have any Picsof this Or Diagrams On making the loops and Pass
> Notch info Caps ect.
> Ive Been looking for a while for 6 meter cans.. I have 1 5/8 hardline
> was going to Build a Helix Duplexer.
>
> How long are the cavites?
> why not just Use Stovepipe and Cap both Ends?
> Neal
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
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