On 30/04/2016 15:37, Ralph Mowery wrote:


I am in the US and just doing my own repairs and building.

Do I need to use any of the lead free solder to repair the boards that
were made usign the lead free solder?

I have not bought any yet and have been practicing witht he SMD on old
computer boards. That stuff seems a pain to work with compaired to the
'regular' tin/lead that I have been using for the last 50 years.

I have been thinking about getting some for the power transistors and
resistors where there is a lot of heat build up but not sure if that
application would even be worth the trouble.


If you are just doing repairs or mods to PbF stuff then use SAC (Tin
+Silver+Copper) solder, the cost would be prohibitive for complete new
build soldering.