My whole buried radial system uses this type of silver solder to connect the
ground radials which are 1/2 in. copper tubing between ground rods. Each
ground rod radial is also soldered to the Rohn tower base plate. It has
been in over 20 years and no noticeable deterioration. I agree with the
comment about using flux not incorporated into the silver solder.
Jim - KR9U
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With hard silver solder --the kind that melts at a red heat-- an
oxyacetylene torch with a #4 or smaller tip works just fine. Just keep the
flame size down, and/or turn down the oxygen a little for a carburizing
flame*.
This is similar to brazing, but brazing is much hotter and uses a
silver-free brass alloy as a filler material.
Use that opaque white borax-type silver solder flux, which is applied to the
silver solder by heating the solder a little bit below its melting point,
and then dipping the hot solder into the flux to coat it. Or, you can buy
silver solder already coated; but IMO, it's not as good.
I use MAPP gas and oxygen to silver solder nowadays, because it's all I have
here right now.
73, Mike
www.w0btu.com
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