Wim, I guess Lim was talking about hammer string mating and the zing sounds that are produced by unpropper mating. It´s not a damper problem but produces high overtone sounds, too. Concerning your problem: sure that it is a damper problem? Not just a resonance of a lose screw or whatever? Play one of the notes hard and staccato. Immediately after damping press the damper to the strings by hand. If the sound does not stop it might be a flageolet. Or press the damper to the string by hand and plug the string. If the sound is still there it is a flageolet. You say all the F# and A# in the bass are affected. Maybe only one damper is the culprit. Try to find it by dampening succesive all the bass strings by hand. Dampers in pianos are a strange thing. Sometimes they dampen, sometimes not :-( Gregor ------------------------ piano technician - tuner - dealer Münster, Germany www.weldert.de To: limhseng at gmail.com; pianotech at ptg.org From: tnrwim at aol.com Date: Sat, 13 Nov 2010 01:27:59 -0500 Subject: Re: [pianotech] ringing dampers U2>30 yrs . It could be hammer to string contact. I have done a few and it helps. Not sure about the single bass strings though. Most grey market U series have this problem. Lim This is not a gray market piano. It was bought in Japan, and the family moved to Hawaii. How does the hammer contacting the string have an effect on the dampening of the string? What did you do to solve the problem? Wim -----Original Message----- From: limhseng <limhseng at gmail.com> To: pianotech <pianotech at ptg.org> Sent: Fri, Nov 12, 2010 8:16 pm Subject: Re: [pianotech] ringing dampers U2>30 yrs . It could be hammer to string contact. I have done a few and it helps. Not sure about the single bass strings though. Most grey market U series have this problem. Lim Sent from my BlackBerry Wireless Handheld Powered by Gee! from StarHub From: tnrwim at aol.com Sender: pianotech-bounces at ptg.org Date: Fri, 12 Nov 2010 23:58:21 -0500 (EST) To: <pianotech at ptg.org> ReplyTo: pianotech at ptg.org Subject: [pianotech] ringing dampers Piano: Yammy U2, 20 years old. On a sharp release, F#1 - A#1, F#2 - A#2, F#3 - A#3 dampen, but not completely, AND, there is a high pitched sound, probably a high overtone, but I don't know which pitch. All the parameters for dampers are correct. I just replaced all the hammer flanges with new spring cords. The student likes the way the piano plays, but is now complaining about the additional noise from the piano. Perhaps she never noticed before, (I didn't when I tuned it four weeks ago), so she thinks it is related to the new flagnes. HELP!!! Wim -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101113/810bb78d/attachment.htm>
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