From: kludge@panix.com   
      
   In article , Tobiah   wrote:   
   >The only thing that worries me is that the contacts went from silver to   
   >gold color.  Would that be copper?  Will I have the same problem in   
   >short order having exposed the copper?  Should I tin them?   
      
   It's phosphor bronze, which is springy (whereas copper is not).  Yes,   
   it will corrode again.  Tinning will help but put the thinnest possible   
   layer on it, because the solder will deform under pressure.  Nickel plate   
   is better if you have a bottle of PC board nickel.   
   --scott   
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)