Kieth, Very likely IMHO. Cold solder joints will look gray because of the fractures.
That is exactly the reason I recommend a eutectic solder (63/37 alloy) rather than the 'standard' 60/40 stuff. There is no plastic state with the eutectic alloy. 73, Don W3FPR > -----Original Message----- > > Looks like poor soldering joints is the #1 problem with rigs we build. > While building my KSB2 I was wondering about and came up with an idea. > > I wonder if many poor solder joints occur because of the lead moving as > the soldering tip is removed. In the case of an IC, while I'm applying > heat, I'm pushing against the chip's lead. When I remove the soldering > iron, the lead is going to spring back just a bit (i.e. move) as the > solder connection is cooling. Could this be a major contributor to poor > solder joints? > > - Keith N1AS - > - K2 5411.ssb - > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
