<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> Ed:       =       If you haven’t found the solution yet, here’s something = I’ve found on Baldwins</= font> regarding damper ringing.  Your sustain pedal should = be adjusted LOOSE.  Even if you think it has a little play, which = ordinarily should be ok, back off the adjustment at the pedal so the pedal rod = (dowel?) is very loose.  I’ve found that I had damper problems on many = Baldwins when I = tightened the pedal trapwork, and had to loosen it again to get rid of the = ringing.  Just try backing off the adjustment and see what happens.  Good = luck!       =       Paul McCloud       =       San Diego   -----Original = Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Ed Carwithen Sent: Wednesday, October = 29, 2003 2:08 PM To: pianotech@ptg.org Subject: = ringing   <div> I need some input about a = piano that has a serious damping (actually a non-damping) problem.  Tones = continue to ring after the key is released.  It is particularly bad on F#4 = which rings at its own pitch, G#4 to a lesser extent, and C#3, D3, and D#3 = which rings at the double octave + 5th.  The piano is a Baldwin Acrosonic #386458.  The owner is a piano teacher which makes the problem a = bit more acute (It's driving her out of her mind). </div> <div>   </div> <div> So far I have adjusted the = pedals to be sure that they are damping well and they seem to be.  I tried = muting the non-speaking parts of all strings, and blocked off all the bass strings in their speaking lengths, as well as the treble strings above = the dampers.  F#3 still singing like a canary.  I even blocked the = F#3 string itself, and it goes "Bonk" when the hammer strikes but continues singing the tone the same as before.  I moved the piano = out from the wall and checked to make sure there was nothing contacting the sound board.  I tapped the strings to the bridge to be sure that there = wasn't some risidual vibration being made there.  There is a bit of a = false beat in the left string of F#3, but that shouldn't cause the excess = ringing.  G4 not ringing, F#4 and G#4 are.  </div> <div>   </div> <div> There are a lot of = knick-knacks in the room, and I wonder about suspecting some vibration in that = area.  </div> <div>   </div> <div> If anyone has a suggestion = as to what I might try in order to eliminate this annoying problem I would be grateful for your input. </div> <div>   </div> <div> Ed = Carwithen </div> <div> Associate = PTG </div> <div> John Day, = OR </div> <div>   </div> </div> </body> </html>