XPost: sci.electronics.components, sci.electronics.design, sci.e   
   ectronics.equipment   
   XPost: sci.electronics.misc, sci.electronics.repair   
   From: invalid@invalid.net   
      
   Have a part on a display / control board from industrial equipment, marked   
   with:   
      
   UCN 4815A   
      
   date code in 1984 and manufacturer icon of a stylized capital "A" (very fat,   
   almost just a triangle). DIP-22 package.   
      
   The only other "UCN" part number I can find is a UCN5800 series:   
      
   http://www.datasheetcatalog.org/datasheet/allegromicrosystems/5800.pdf   
      
   Does anybody know what the 4815 is, who the manufacturer is (or was), and --   
   hope against hope -- a datasheet?   
      
   And -- depending on the test results -- possibly a replacement part.   
      
   Thanks.   
      
   --- SoupGate-Win32 v1.05   
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