View Single Post
Old June 17, 2010, 07:35 AM   #3
johnbt
Senior Member
 
Join Date: December 6, 1999
Location: Richmond, Virginia USA
Posts: 6,004
I believe it is a method of testing the solder joints between the barrels. If they're loose they'll buzz more than ring.
johnbt is offline  
 
Page generated in 0.03048 seconds with 8 queries