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Old 03-07-2011, 02:23 AM
  #15  
liminanc
Junior Member
 
Join Date: Dec 2010
Location: Ashburnham Mass
Posts: 284
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I can hear when the bobbin is out of thread, the machine changes the pitch of it's hum just a little bit and I can normally pick up on that so I usually on do a few stitches.
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