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Old 07-25-2015, 07:04 AM
  #12  
quiltedsunshine
Super Member
 
Join Date: Nov 2010
Location: Utah
Posts: 2,072
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The part number for the good 15 class bobbins is 2518NS. The ones with the NS are a bit better than the 2518. You might even be able to find these online.

Good Luck!
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