[pianotech] after ring on bass damper

[Laura Read]

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:  <mailto:pianotech-bounces at ptg.org> pianotech-bounces at ptg.org [
<mailto:pianotech-bounces at ptg.org?> mailto:pianotech-bounces at ptg.org] On
Behalf Of  <mailto:wimblees at aol.com> wimblees at aol.com
Sent: Saturday, August 01, 2009 11:04 PM
To:  <mailto:Pianotech at PTG.org> Pianotech at PTG.org;  <mailto:caut 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 <http://www.pianotuning.com/>  


  _____  


avast! Antivirus <http://www.avast.com/> : 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/20090803/3b4d1096/attachment.htm>