Posted for "David VanOsdol" <vanosdol@quixnet.net>:

 Hi Mike,
 
 You should be able to get tungsten electrodes at your local welding supply
 shop.  I have not done this but they should be available.
  
 Happy flying,
  
 David VanOsdol
  N360DB
  dvanosdol@mybajaranch.com
  www.mybajaranch.com
 
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