Rosin flux (the ONLY kind that should be used in any Elecraft rig) might darken slightly with age, but it is *not* at all corrosive once your solder joint cools, no matter how many decades it's left on the joint. That's the main advantage of rosin flux that continues to make it the preferred flux for all hand soldering.
GC Electronics sells bottles of rosin flux with a built in brush applicator that is ideal for this sort of thing (GC # 10-4202, www.gcelectronics.com). A small dab where you want to solder will take care of almost any oil or oxidation. I use it a lot when working with SMDs to prepare the pc board pads for parts. The 2 fl oz (59 ml) bottle will last for many of years of normal work. Small flux pens are also available from other sources such as circuit specialists and others. Ron AC7AC _______________________________________________ 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
