Re: Another scope 7854
That sounds like the same thing but the color I observed wastoggle quoted messageShow quoted text
definitely purple. It looked very much like the result of mixing
purple and yellow crayons.
I considered indium solder but removing the gold by dissolving it in
tin worked well enough and was less expensive.
On Fri, 5 May 2017 22:22:14 +1200 (NZST), you wrote:
The older heavily gold plated HP boards used to develop distinctive dark gold tin intermetallics between the solder and the board after a few years. The forrmation of such intermetallics is why a solder pot is used to remove gold from the solder pockets on connectors for high reliability wiring harnesses. Indium solder is another approach but its more susceptible to corrosion