<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.50.4134.100" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Have you tried "raking" the strings = (everything in rest position) with a fingernail or guitar pick to see if any = dampers are letting any sound bleed through?  How about doing this with the = sustain pedal depressed, then released quickly to see what sounds continue to = ring afterwards?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>When you strike the plate with the heel = of your hand or whatever it takes to cause the whole piano to ring, could you = make the ring go away by grasping the plate struts or planting a hand firmly on = the plate somewhere?  I once ran into this phenomena on a Japanese-made grand.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Z! Reinhardt  RPT<BR>Ann = Arbor  MI<BR><A href="mailto:diskladame@provide.net">diskladame@provide.net</A></FONT><= /DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=ramsey@extremezone.com = href="mailto:ramsey@extremezone.com">Kevin E. Ramsey</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, June 07, 2001 = 10:46 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Plate Ringing</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>    I had an odd = occurrence today that I really hope that you all can help me with. I had a = customer who has a new Steinway model 4510 (model 45?) studio, with damper = problems. When I got out there, it's kind of a damper problem, but not really. The = problem is;</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>A)  The whole piano rings, when = you play a chord or any note in a staccato fashion.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>B)  The pedals are not lifting = the dampers.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>C) The spoons are not too early, the = strings have plenty of follow.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>D) The dampers are aligned properly. </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>    In short, no real = problem with the damper system. What I did notice while working on the trapwork was = that if I stuck the plate with the heel of my hand, the whole piano would = ring. When you struck the piano anywhere, it would ring. </FONT></DIV> <DIV><FONT face=Arial size=2>    I did notice that = some of the bi-chords where indented by the strings, but they had plenty of follow-through.</FONT></DIV> <DIV><FONT face=Arial size=2>    The waste ends on = the hitch pin side of the strings were already braided. </FONT></DIV> <DIV><FONT face=Arial size=2>    I tried striking = notes with my hand on groups of strings, and no effect. I strummed groups of notes = and found nothing leaking. And yet the whole piano had a real ring to it. = </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>    I'm just wondering = if the plate, being sand cast, could have warped and twisted enough to cause = some weird tension on it which would cause it to ring like a bell. I mean, = if something as massive as a plate wanted to ring, could you really = expect the energy to go up the strings to be damped by little pieces of = felt?  </FONT></DIV> <DIV><FONT face=Arial size=2>    I hope that = someone can help me out. Tomorrow I call Kent Webb, and see if he can = help.</FONT></DIV> <DIV><FONT face=Arial size=2>    One interesting = note here. This piano was just purchased three months ago. I looked it up in the = Atlas, it was produced in '96.</FONT></DIV> <DIV><FONT face=Arial size=2>    =   </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Kevin E. Ramsey<BR><A href="mailto:ramsey@extremezone.com">ramsey@extremezone.com</A> </FONT></DIV></BLOCKQUOTE></BODY></HTML>