How I construct modules...

[Russ Bellinis]

You don't need silver solder to make a good strong connection. Just use stranded wire for flexibility when soldering to the center pins, and use regular 40/60 electrical solder. I'm not sure silver solder can even be done with an iron. I've never used anything but an oxy/acetylene torch with silver solder, even a propane torch is not hot enough to get silver to flow.