| A reasonably priced "compromise" is 63/37 solder. It melts at a somewhat lower temperature than 60/40, PLUS it it is "eutectic". That $10 word means that it "snaps" from a liquid to a solid within only a couple of degrees of temp, thus minimizing cold-solder joints.
Kester wire with 63/37 alloy is readily available, including from Mouser.
Bri |