[pianotech] after ring on bass damper

[Joe Goss]

Wim and all,
Forgot a trick that sometimes works. Move the open string sideways toward the damper. Like you would when leveling strings. Be sure you lift the dampers before pressing the string toward the way you need to improve damping as one can worsen the situation.
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: Laura Read 
  To: pianotech at ptg.org 
  Sent: Monday, August 03, 2009 11:14 AM
  Subject: Re: [pianotech] after ring on bass damper


  Wim,

   

  I ended up replacing the felts on those dampers I was having trouble with last month. I don't know why it would help your challenge, but nevertheless I was pleasantly surprised when it helped mine.

   

  Laura Read

  "Ringing On"

   

  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Paul T Williams
  Sent: Monday, August 03, 2009 7:21 AM
  To: pianotech at ptg.org
  Subject: Re: [pianotech] after ring on bass damper

   

  Wim, 

  Are the damper felts crusty or have corrosion on them? Lifting straight up and down or twisting?  Maybe replace the felts. 

  Paul 
    
  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of wimblees at aol.com
  Sent: Saturday, August 01, 2009 11:04 PM
  To: Pianotech at PTG.org; caut at ptg.org
  Subject: [pianotech] 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 


------------------------------------------------------------------------


        avast! Antivirus: Outbound message clean. 
        Virus Database (VPS): 090801-0, 08/01/2009
        Tested on: 8/2/2009 12:08:05 AM
        avast! - copyright (c) 1988-2009 ALWIL Software.
       




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090803/7fa55d5e/attachment-0001.htm>