I recognize those pictures! They are patented pedal-activated adjunct harmonic stimulators. Its a classic effect! On Tue, Mar 31, 2009 at 10:24 AM, Conrad Hoffsommer <hoffsoco at luther.edu>wrote: > Stéphane Collin wrote: > > My understanding is that this sound comes mainly from the W shaped damper >> felts who rub against the strings when they are lifted. This is why older >> pianos don't have this problem, as they have smaller dampers and some have >> flat damper felts, who don't cause the objectionable sound, even on the >> bass >> strings. >> > > This what you mean? > ;-} > > -- > Conrad Hoffsommer, RPT - Keyboard Technician > Luther College, 700 College Dr., Decorah, Iowa 52101-1045 > 1-(563)-387-1204 // Fax 1-(563)-387-1076 > -- Ryan Sowers, RPT Puget Sound Chapter Olympia, WA www.pianova.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090331/db4e35a0/attachment.html>
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