<!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 6.00.2900.2180" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Terry,</FONT></DIV> <DIV><FONT face=Arial size=2>Does mass loading the bridge work for = the high treble end as well?</FONT></DIV> <DIV><FONT face=Arial size=2>Tom Servinsky</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=mfarrel2@tampabay.rr.com href="mailto:mfarrel2@tampabay.rr.com">Farrell</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, February 03, 2006 = 11:13 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Mass Loading = Bridges</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Here is a pictures of an assortment = of brass-mass - all done from round stock, bandsaw and small drill = press.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><IMG alt="" hspace=0 src="cid:00a401c6293f$8612b810$0300a8c0@pianocraft" align=baseline = border=0></FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Below is picture of them = installed.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><IMG alt="" hspace=0 = src="cid:00a501c6293f$8612b810$0300a8c0@pianocraft" align=baseline border=0></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Terry Farrell</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>----- Original Message ----- </FONT> <DIV><FONT face=Arial size=2>> I'm finally getting around to = working on the piano which had a boomy <BR>> crossover from the long bridge to the = bass bridge.  I'm envisioning <BR>> getting some rolled brass stock = and cutting off pieces for <BR>> this.  I've cut aluminum with a = carbide blade, I think brass might be <BR>> a little harder.  How = difficult is this to do?  I'd drill a screw <BR>> hole in the center and temporarily set under the bridge until I get <BR>> the impedance I want.<BR>> <BR>> How do you pro's do this?  Where do you = source your material and what <BR>> is your favorite means of machining it?<BR>> <BR>> Andrew Anderson</FONT></DIV></DIV></BLOCKQUOTE></BODY></HTML>