[CAUT] after ring on bass damper

[Joe Goss]

Hi Wim, Did you mean B0 and C1?
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: wimblees at aol.com 
  To: Pianotech at PTG.org ; caut at ptg.org 
  Sent: Saturday, August 01, 2009 9:03 PM
  Subject: [CAUT] after ring on bass damper


  I've got a Kohler & Campbell 5'9" grand that has very noticeable after ring on B1 and C2. At the convention I asked Roger Jolly about it, and he showed me how to "voice" the damper felt, by sticking a long needle into the felt, first from the front, and then from the back. He demonstrated this technique on several notes on a couple of different pianos, and it worked quite well. But yesterday I went to the piano in question, and tried to do the same thing. I got the damper to work a little better, but there is still a lot of after ring. 

  This is not a sympathetic vibration coming from another string. The damper is properly seated, with plenty of follow through. The actual ring of the string stops, but there is excessive after ring. It goes away when I put just a little bit of pressure on the damper head.
   
  I'm open to other suggestions. 


  Willem (Wim) Blees, RPT
  Piano Tuner/Technician
  Mililani, Oahu, HI
  808-349-2943
  Author of: 
  The Business of Piano Tuning
  available from Potter Press
  www.pianotuning.com
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