I've been soldering on and off for quite some time, and I've always used whatever Radio Shack had available. Now, I'm about to attempt a bit of SMT soldering (by hand), and I'm having some difficulty sourcing appropriate combinations of diameter and composition.
The general consensus seems to be that Sn63/Pb37 solder is easier to work with than 60/40 solder, and it seems to be widely available. One wonders, in fact, why 60/40 solder continues to be as common as it is today.
When it comes to SMT, the general consensus seems to be "smaller is better", and I'm probably looking for 0.015" diameter solder, if I can get it.
If I wanted to buy in quantities of one pound, I could locate appropriate solder, but it is quite expensive in quantities that high, and I am fairly unlikely to use that much solder in less than a decade or two. I tried Allied, Grainger, Mouser, and even Amazon.com without success.
The closest thing I could find, in fact, ends up being available from Radio Shack: 0.015" diameter 62/36/2 silver-bearing solder.
What I don't know, however, is how this compares to "normal" 63/37 solder. Is this just as good, almost as good, or better? Is it the "right stuff" to use for everyday PTH and SMT soldering (other than it being too small for PTH)?