<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=windows-1252"> <META content="MSHTML 6.00.2800.1264" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial>If the original geometry is good, then just = replace the originals with the original-type 16 mm shanks and flanges. Abel makes = 'em, and I'm sure other suppliers have them also.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>I did not get further than the first few = pages of Mr. Mohr's book. Heaven forbid - please don't tell me he recommends = changing action geometry - improving on the design of the original masters? YIKES!</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Terry Farrell</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=michael@gambles.fsnet.co.uk href="mailto:michael@gambles.fsnet.co.uk">Michael Gamble</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> Saturday, January 17, = 2004 5:05 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Fw: S&S replacing = Hammer Assemblies with new</DIV> <DIV><BR></DIV> <DIV> </DIV> <DIV style="FONT: 10pt arial">----- Original Message ----- <DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A title=michael@gambles.fsnet.co.uk href="mailto:michael@gambles.fsnet.co.uk">Michael Gamble</A> </DIV> <DIV><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV><B>Sent:</B> Monday, January 12, 2004 8:58 PM</DIV> <DIV><B>Subject:</B> S&S replacing Hammer Assemblies with = new</DIV></DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Hello List</FONT></DIV> <DIV><FONT face=Arial size=2>Happy New Year</FONT></DIV> <DIV><FONT face=Arial size=2>I am currently coming to terms with = the need to replace an entire set of Hammer Assemblies in a 1913 Model A S&S. = There is one problem. An important dimension (measured in mm) needs to be = addressed. It seems that on the older S&S this dimension from the Hammer Flange = Centre Pin to the core of the Roller (Knuckle) was 16mm, while those on the = newer S&S models is 17mm. To change just the Hammer Assemblies involves elongating the slot in the old Lever (Whippen) through which the Jack = does its work. It can indeed get more complex than this. One could change the = Lever (Whippen) as well, but that would put the touch in the wrong place on = the Key and make it necessary to replace the keys as well. The reason for = replacing the Keys is that in the old Keys the Balance-rail would be in the = wrong place - that's why the touch would be too heavy. The new Levers do not have = Spring Assists and the touch would therefore be too heavy if the keys were = not replaced as well. This option is expensive - albeit a preferred route = to take were money no object.</FONT></DIV> <DIV><FONT face=Arial size=2>Have you all read, marked and learned = from Franz Mohr's book "My Life with the Great Artists"? In this book Franz takes = one along the "preferred" route quite convincingly. You know Franz, of = course, as the "Head Concert Technician" to S&S.</FONT></DIV> <DIV><FONT face=Arial size=2>One thing which has not been made = quite clear in S&S action diagrams is.... precisely from where - to - where is = this dimension of Hammer Flange Center - to - Knuckle Core taken? It could = be from the middle of the Knuckle Core to the middle of the Hammer Flange = Centre - or - It could be from the core-face of the Knuckle (on the = Hammer side) to the middle of the Hammer Flange Centre - and there's a = whole millimeter difference between the two.</FONT></DIV> <DIV><FONT face=Arial size=2>Anyone like to take up this Topic? Please?</FONT></DIV> <DIV><FONT face=Arial size=2>Regards</FONT></DIV> <DIV><FONT face=Arial size=2>Michael G (UK)</FONT></DIV> <DIV> <STYLE>  </STYLE> <TABLE cellSpacing=0 cellPadding=0 width=600 border=0> <TBODY> <TR> <TD> <TABLE height=80 cellSpacing=0 cellPadding=0 width=600 = align=right border=0> <TBODY> <TR> <TD class=tiny> <TABLE style="BORDER-RIGHT: #666666 1px solid; BORDER-TOP: = #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: = #666666 1px solid" height="100%" cellSpacing=0 width=600> <TBODY> <TR bgColor=#4e81c4> <TD class=tiny width="100%" height=1> <TABLE cellSpacing=0 cellPadding=1 = width="100%" border=0> <TBODY> <TR> <TD class=logotext style="PADDING-LEFT: = 5px"><IMG = src="cid:006001c3dce5$f0ed4950$b9b52341@youro0kwkw9jwc" border=0></TD> <TD class=noro style="PADDING-RIGHT: 5px; FONT-SIZE: 7pt; = COLOR: #ffffff" align=right>Keyboard tuner to Glyndebourne = since 1980</TD></TR></TBODY></TABLE></TD> <TD class=tiny></TD></TR> <TR> <TD colSpan=2> <TABLE height="100%" cellSpacing=2 = width="100%" align=right border=0> <TBODY> <TR style="PADDING-BOTTOM: 4px" height=1> <TD class=noro style="PADDING-LEFT: 4px" vAlign=top><B>Michael Gamble</B><BR><I>Piano/Harpsichord = Tuner/Tech.</I> </TD> <TD class=noro style="PADDING-RIGHT: 4px" = vAlign=top align=right><A class=psl = href="http://maps.yahoo.com/py/maps.py?Pyt=Tmap&addr=29+Shepher= ds+Way&csz=RingmerSussex++BN8+5LT&country=us" target=_blank>"Westwick"<BR>29 Shepherds Way<BR>Ringmer<BR>Sussex BN8 5LT<BR>UK</A> = </TD></TR> <TR height=1> <TD class=noro style="PADDING-LEFT: 4px; PADDING-BOTTOM: 4px" = vAlign=bottom><A class=psl href="mailto:michael@gambles.fsnet.co.uk" = target=_blank>michael@gambles.fsnet.co.uk</A> </TD> <TD class=noro style="PADDING-RIGHT: 4px; PADDING-BOTTOM: = 4px" vAlign=bottom align=right> <TABLE cellSpacing=0 align=right = border=0> <TBODY> <TR> <TD class=noro noWrap align=right>tel: = <BR>fax: <BR>mobile: </TD> <TD class=noro style="PADDING-LEFT: = 4px" noWrap align=right>+44(0)1273 = 813612<BR>+44(0)1273 813612<BR>07766 184580 = </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></T= ABLE></TD> <TD></TD></TR></TBODY></TABLE></TD></TR> <TR> <TD colSpan=2> <TABLE cellSpacing=0 cellPadding=0 width="100%"> <TBODY> <TR> <TD align=left><A class=brand href="http://www.plaxo.com/signature/" = target=_blank><I>Powered by Plaxo</I></A></TD> <TD align=right><A class=brand href="http://www.plaxo.com/signature/" = target=_blank><I>Want a signature like = this?</I></A></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV></= BLOCKQUOTE></BODY></HTML>