[Boatanchors] Weller Iron Frustrations

[WA5CAB at cs.com]

Straight tin-lead alloys like a little copper and over time will etch 
(erode) the tip chemically.  That was the reason for the Ersin SavBit alloy.  It 
had a small amount (mayber 1% or less) of copper added to the alloy.  Didn't 
erode tips.  The downside was that it was impossible to get a shiny solder 
joint.  They all looked like cold joints.  We had a 1st Class Airdale throw 
a roll of it the length of a 50'x100' shop one day when he finally figured 
out it was the solder's fault that he couldn't get proper looking joints.  
:-)

In a message dated 05/15/2013 15:06:17 PM Central Daylight Time, 
w5jo at brightok.net writes: 
> Another problem may be the solder used.  Some of it will eat a tip up 
> quickly especially if you pull the trigger and hold it for a long time.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480