From: tech@parts-link.net   
      
   That hit on Reddit is exactly the same board, so that must be how the   
   original shaft looks.   
   I am thinking Alps EC11 like these  https://www.ebay.com/itm/113261494197   
   and the comments on reddit says they went with an EC11.   
      
   Not sure if its a D shaft...or curcular. He lists 15 or 20mm circular or D   
   shaft in the drop down.   
   Then the question is , are the detents the same. Guess I would have to take   
   this one   
   apart to determine the number of detents. Usually once you find the number   
   of detents   
   the electrical spec seems to match. 30 detents maybe....   
      
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