<html xmlns:o="urn:schemas-microsoft-com:office:office" = xmlns:w="urn:schemas-microsoft-com:office:word" = xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> I am having trouble eliminating the after ring in the strings of a Kimball upright.  I noticed a ring before I started = work on it.  The bass strings have now been removed and sent off for = duplication so it can’t be a problem with bass overtones.  I have done regulation on the middle and treble, but there is a significant ringing = in the strings.  The non speaking sections of the strings do have ribbon = felt on them.  The dampers are in good shape and seat well on the = strings.  When the strings are depressed the dampers do follow.  The pedal is = not pressing the dampers off the strings.  I have damped off all of the strings except one to try to isolate one note at a time, but there is = still ring.  I don’t know what to try next.  Any = suggestions?<o:p></o:p> <o:p> </o:p> Ed Carwithen<o:p></o:p> John Day, OR<o:p></o:p> <o:p> </o:p> </div> </body> </html>