From: andrewkennedy775@gmail.com   
      
   On Sunday, February 11, 2018 at 6:59:23 AM UTC-6, default wrote:   
   > On Sun, 11 Feb 2018 04:52:51 -0600, oldschool@tubes.com wrote:   
   >   
   > >I got an old AM-FM pocket transistor radio which looked good and clean   
   > >till I opened the battery compartment. Very corroded carbon zinc   
   > >batteries were in it. After removing them, I cleaned off as much of the   
   > >corrosion as possible by scraping with a plastic stick, and scrubbing   
   > >with q-tips and rubbing alcohol. That got rid of most of it, and I was   
   > >surprised to find the battery clips are not badly damaged, but I had to   
   > >use a fingernail file (sandpaper strip) on the ends of the springs.   
   > >   
   > >Better yet, the radio works perfectly.   
   > >   
   > >But there is still a little of that battery corrosion still in there. In   
   > >all the years I've worked on electronics, I have never found a perfect   
   > >way to clean up leaked batteries. Is there some sort of spray or a   
   > >chemical that will dissolve or deactivate that crap?   
   > >   
   > >Of course it has to be safe for the circuit board and components too. I   
   > >use the 91% isopropyl alcohol, so it evaporates quickly and leaves   
   > >little water residue behind. (Then leave it dry well before use).   
   >   
   > I like dish detergent and a soak in very hot water then scrub with a   
   > toothbrush and let dry in a warm oven, for hours.  But with unsealed   
   > potentiometers, or those poly insulated tuning caps they used back in   
   > the day, I wouldn't recommend it.   
   >   
   > WD-40 seems to work well in electronics.  Good for noisy pots and can   
   > help keep out moisture.   
      
   I recommend swabbing with a solution of sodium bicarbonate to neutralize the   
   acid.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)