<!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 6.00.2800.1479" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV> </DIV> <DIV>R.Moffatt & Sons<BR>Master Piano Technicians<BR>2323 Lincoln = Drive S.W.<BR>Calgary, Alberta ,  Canada T3E 5G4<BR>Phone. = 403.243.0385<BR><A href="http://www.moffattpianos.com">www.moffattpianos.com</A><BR>Fax.&n= bsp;    403.243.6821<BR>email:   <A href="mailto:moffatt5@telus.net">moffatt5@telus.net</A></DIV> <DIV style="FONT: 10pt arial">----- Original Message ----- <DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A title=moffatt5@telus.net href="mailto:moffatt5@telus.net">R.Moffatt = & Sons Piano</A> </DIV> <DIV><B>To:</B> <A title=caut@ptg.org = href="mailto:caut@ptg.org">College and University Technicians</A> </DIV> <DIV><B>Sent:</B> Thursday, January 06, 2005 8:47 PM</DIV> <DIV><B>Subject:</B> Re: [CAUT] back check wires</DIV></DIV> <DIV><BR></DIV> <DIV><FONT face=Arial color=#0000ff size=2>Hi Roger, it's = Bob</FONT></DIV> <DIV><FONT face=Arial size=2><A href="mailto:moffatt5@telus.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=roger.j@sasktel.net = href="mailto:roger.j@sasktel.net">Roger Jolly</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=caut@ptg.org href="mailto:caut@ptg.org">College and University Technicians</A> = </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, January 05, = 2005 8:48 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [CAUT] back check wires</DIV> <DIV><BR></DIV><FONT size=3> <DIV><FONT face=Arial size=2></FONT><BR>Hi = David,<BR>          &nb= sp;       The very rigid wire tends to create key noise, from the B/R = hole/pin.  Just a slight hint of chucking and the key will clatter. </DIV> <DIV> </DIV> <DIV><FONT face=Arial color=#000080 size=2> I have = never heard "noise from the balance rail/ hole/pin" ..caused by the back check = wire!  If you hear "chucking" consider easing the keys </FONT></DIV> <DIV><FONT face=Arial color=#000080 size=2><EM><U>slightly = </U></EM>at the balance rail.</FONT></DIV> <DIV><FONT face=Arial color=#000080 size=2></FONT> </DIV> <DIV> Slightly flexible and the check helps to absorb that noise energy.  I think Wim mentioned, better checking from thicker = wire.</DIV> <DIV> </DIV> <DIV><FONT face=Arial color=#0000ff size=2>Flexible, in any type = of playing, will cause ""uneven check"". Wim is correct imho!</FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV> <DIV>   This is not so. The slight flexibility helps trap = the tail.  Like all things in piano work there is a window for the parameter.</DIV> <DIV> </DIV> <DIV><FONT face=Arial color=#0000ff size=2>There is always a = window, in tuning..and voicing. A very..very..very small window when it involves regulation.</FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV> <DIV>  Too flexible unstable regulation, too stiff, then too much = noise. </DIV> <DIV> </DIV> <DIV><FONT face=Arial color=#0000ff size=2>Yes to the first = part. Too stiff, in my experiance..great check. The noise?? Back to the balance rail. = Tell me the relationship between the back check wire and the "uneased key at = the balance rail" I would love to learn!</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV>  Checking is more of a function of  leather/felt = quality, and tail geometry, plus a little flex.  <G></DIV> <DIV> </DIV> <DIV><FONT face=Arial color=#0000ff size=2>Correct....but...you = fill in the blanks.  </FONT><BR><BR>Definitely going back to sleep.<BR></DIV> <DIV><FONT face=Arial color=#0000ff size=2>Sleep well my friend.</FONT></DIV><FONT face=Arial color=#0000ff = size=2></FONT> <DIV><BR>Roger</DIV> <DIV> </DIV> <DIV><FONT color=#0000ff><FONT face=Arial size=2>Bob</FONT><BR></FONT><BR><FONT face=Arial color=#0000ff size=2>R.Moffatt & Sons<BR>Master Piano Technicians<BR>2323 = Lincoln Drive S.W.<BR>Calgary, Alberta ,  Canada T3E 5G4<BR>Phone. = 403.243.0385<BR><A = href="http://www.moffattpianos.com">www.moffattpianos.com</A><BR>Fax.&n= bsp;    403.243.6821<BR>email:   <A = href="mailto:moffatt5@telus.net">moffatt5@telus.net</A></FONT><BR><BR><= BR></DIV></FONT></BLOCKQUOTE></BODY></HTML>