<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Re: Sohmer Agraffe Bridges - Photos wanted! ?</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 5.50.4134.100" name=GENERATOR></HEAD> <BODY bgColor=#ffffff> <DIV> </DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Hello Ron O!</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> Sunday, February 22, 2004 = 1:18 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Sohmer Agraffe = Bridges - Photos wanted! ?</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2></FONT><BR></DIV> <DIV>I converted them to greyscale to reduce the image size for the web.</DIV></BLOCKQUOTE> <DIV dir=ltr>What are the agraffes made of? Brass?</DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV>I doubt if his bridge will have structural problems due to the laminations or the absence of a cap, since the agraffes aren't quite = as hard on the bridge as a conventional pinning set up, but the 24 mm bridge = height of the Stuart is probably too low. To my knowledge there is only one = other contemporary concert grand manufacturer who uses 24 mm low bridges. = Neither have inspired emulation.</DIV></BLOCKQUOTE> <DIV dir=ltr>Who is this manufacturer?</DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV><FONT face=Arial size=2></FONT><BR></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV>I'm not sure. More than a rule would be required to ball-park it. = So far I haven't gotten around to making a device for measuring it. = Furthermore, the ribbing is very light (typical rib sections 20 mm wide by 20 - 21 mm = deep -19 of them on the concert piano) so that it wouldn't stand for much in = way of down bearing force.</DIV></BLOCKQUOTE> <DIV dir=ltr>Do you happen to have a picture of the Stuart piano's = soundboard? I'd like to see both sides.</DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV>Indeed, but I'm not sure that effective clamping of the string to = the bridge is all we should be striving for. I suspect that down bearing = might be required for the effective transmission of the lower partials. Now I = realise that in a number of posts from credible members of this list, it has = been claimed that down bearing is not necessary for the production of = satisfactory tone, but I remain unconvinced at this stage.</DIV></BLOCKQUOTE> <DIV dir=ltr>What makes you think that lower partials won't be = transmitted unless there is some downbearing? I</DIV> <DIV dir=ltr>f I understand things right, and downbearing stiffens the = soundboard, then it should also mean that low frequencies are less = readily transmitted. I might have understood this the wrong way though.</DIV> <DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV> <DIV> </DIV> <DIV dir=ltr><FONT face=Arial size=2> Calin Tantareanu<BR>----------------------------------------------------<BR>&nb= sp;<A href="http://calintantareanu.tripod.com">http://calintantareanu.tripod.= com</A><BR>----------------------------------------------------</FONT></D= IV></BODY></HTML>