Damper Thump Noise

[Michael Gamble]

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Terry - Assuming it's not coming from the tray bottoming out on the =
damper-tray lift rod then I think your analysis quite likely. Another =
thing - don't let the damper wedge or split felt stick out the other =
side of the bichords, else you'll get that "shoooshing" noise when =
activated. Try changing some of those wedges so you get an "A-B" test.
Regards
Michael G.(UK)
  ----- Original Message -----=20
  From: Farrell=20
  To: pianotech@ptg.org=20
  Sent: Thursday, August 04, 2005 10:43 AM
  Subject: Damper Thump Noise


  1950-ish Baldwin L grand, all original. Raise dampers with pedal and =
then release pedal. Dampers make quite an audible thump. Remove action =
and manually lift a dozen or so dampers and you get a similar thump - it =
is especially prominent with the bicords - very little noise from the =
flat dampers.

  Is this nothing more than the sound that 55 year-old grand dampers =
make? That is my strong suspicion.

  Terry Farrell
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