I use the eutectic 3% silver, 97% tin solder for my radials. You can get it
at any welding shop. It has about 100 deg C higher melting temp than tin-
lead. I used it on all my ground radial crossovers 2 years ago and it is
holding up well so far. BTW, it's about $35 a pound! I use it with liquid
pure rosin flux. The 40% silver stuff is really for brazing. That would be
overkill.
Rick Karlquist N6RK
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