> "Silver solder" for electrical applications (soft solder) > has no silver, it is 67% tin, 33% lead.
Well, yes and no. There is "low temperature" silver solder that is 4% silver and 96% tin. It is sometimes also called "bearing solder" and is used (along with true high temperature silver solder) in model making and jewelry. It's melting point is something like 450 degrees Farenheit. There is also a soldering alloy that's 2% silver, 65% tin and 33% lead. I used them both when I built monster model displays for Aurora Plastics. The solder came from B. Jadow on East 23rd Street in Manhattan. I've still got a few rolls - along with the special matching flux - in my basement (for whatever that's worth). Anyway, I seriously doubt these solders could be used in bicycle production or anything similar - except perhaps for those Morgan trikes that were already mentioned. My own theory is that the phrase "silver soldering" for what is actually brazing with silver filler material comes from the jewelry industry. Bear in mind, though, that I once assembled 12 inch high cages using these solders (to "restrain" 8 inch tall monsters) so my judgement might be impaired. Best regards, Fred Rednor - currently unrestrained in Arlington, Virginia
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