<!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 6.00.6000.16448" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>The assumption seems to be that this
device works by adding "tension" and perhaps "recrowns" the
soundboard.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Suppose, however that it just works by stiffening
the belly rail and connecting it to the mass of the rim. What would happen
if you turned the turnbuckle the other way, just enough to add a little
compression between the belly rail and the rim?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ed Sutton</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></FONT> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=dmckech@ithaca.edu href="mailto:dmckech@ithaca.edu">Donald
McKechnie</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=caut@ptg.org
href="mailto:caut@ptg.org">caut@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, May 17, 2007 10:18
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [CAUT] killer half-octave</DIV>
<DIV><BR></DIV>All,<BR><BR>Be very careful with the tension resonator. The
attached picture tells why. I followed the instructions to the letter but the
belly rail was not up to it for some reason. I spoke to Bob Grijalva about the
problem and he said it was a first. No clue as to why this happened. The funny
thing is it appears to have had no effect for the worse or better. I just left
it in and has been there for about a year. This piano is due a new soundboard
so the belly rail can be repaired then.<BR><BR>Don<BR><BR><BR>
<P>
<HR>
<P></P>
<P>
<CENTER><IMG
src="CID:{B1BDBA9B-A713-4D73-9551-1FC038CB3FFB}/IMG_0501.jpg"></CENTER>
<P>
<HR>
<P></P><BR>IMG_0501<BR><BR><BR><?smaller>Don McKechnie<BR>Piano
Technician<BR>Ithaca
College<BR>dmckech@ithaca.edu<BR>607-274-3908<?/smaller><BR></BLOCKQUOTE></BODY></HTML>