[Elecraft] Why Lead Free? (WAS: Solder requests - STOP)

[David Honey]

ISTR someone also had previously posted a link to some pictures on the NASA 
web site showing the problem with crystalline whiskers with tin. I think 
the issue here was that such whisker growth is significant less with 
traditional leaded solders than the lead-free ones. If this is true, and as 
we moved towards closer pin placement and higher densities, this could make 
long term reliability an issue.

Anyone have any more info that aspect?

73, David, M0DHO K2#4030