<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Re: short treble</TITLE> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <STYLE type=text/css>BLOCKQUOTE { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } DL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } UL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } OL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } LI { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } </STYLE> <META content="MSHTML 6.00.2800.1264" name=GENERATOR></HEAD> <BODY bgColor=#d8d0c8> <DIV><FONT face=Arial size=2>Thanks, Ron, for those interesting = comments.  I think I am going for a new board.  Never done this, so I'll look = for a shop used to do this kind of job.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Regards,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Stéphane Collin.</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=sec@overspianos.com.au = href="mailto:sec@overspianos.com.au">Overs Pianos</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, October 31, 2003 = 1:52 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: short treble</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=-1>At 10:22 AM +0100 31/10/03, = Stéphane Collin wrote:</FONT></DIV> <BLOCKQUOTE cite="" type="cite"> </BLOCKQUOTE> <BLOCKQUOTE cite="" type="cite"><FONT face=Arial size=-1>Well, = even when simply plucking the trebble strings, I hear it is shorter than what = I would call normal.  But the sound is nice, apart from short.</FONT></BLOCKQUOTE> <DIV><BR></DIV> <DIV>If the tone is short it could be due in part to loose bridge = pins, dirt in the agraffe holes (which is acting like a damper). But it would = certainly be worth checking the glue joint between the sound board panel and the = inner rim and belly rail, and the bridge and panel.</DIV> <DIV><BR></DIV> <BLOCKQUOTE cite="" type="cite"><FONT face=Arial = size=-1>  And that varnish on the bridge seems to be the only unusual thing.  I = thought that the elasticity of the varnish on the bridge could maybe dampen = the high frequencies.</FONT></BLOCKQUOTE> <DIV><BR></DIV> <DIV>If the finish is contacting the speaking length in front of the = bridge pins, this could also be a cause of short tone. It is not uncommon to = find instruments where a technician has 'bedded the strings' so effectively = that they are embedded in the bridge cap. This will cause the string = termination to be bourne by the bridge notching in front of the pin.</DIV> <DIV><BR></DIV> <BLOCKQUOTE cite="" type="cite"><FONT face=Arial = size=-1>Hammers are quite light (4.3 g for the highest trebble, 6.0 g for note n°60), and = new shanks are already tapered in the last section.</FONT></BLOCKQUOTE> <DIV><BR></DIV> <DIV>Hammers are unlikely to be the problem with regard to sustain. = But the sound board might well have deteriorated. Check it for curve with a = thread underneath. Many of the 1920's instruments I've inspected are due for = a new board.</DIV> <DIV><BR></DIV> <DIV>Ron O.</DIV><X-SIGSEP><PRE>-- </PRE></X-SIGSEP> <DIV><FONT face="Times New Roman" color=#0000ff size=+1><B>OVERS = PIANOS - SYDNEY</B></FONT></DIV> <DIV><FONT color=#000000><I>   </I></FONT><FONT color=#0000ff><I>Grand Piano Manufacturers</I></FONT><FONT color=#000000><BR>_______________________</FONT></DIV> <DIV><FONT color=#000000 size=-2><BR></FONT><FONT = color=#000000>Web http://overspianos.com.au</FONT></DIV> <DIV><FONT color=#000000>mailto:info@overspianos.com.au</FONT></DIV> <DIV><FONT color=#000000>_______________________</FONT></DIV></BLOCKQUOTE></BODY><= /HTML>