<!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 6.00.2900.3132" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: x-small; COLOR: black; FONT-FAMILY: Arial; BACKGROUND-COLOR: transparent" bgColor=#ffffff> <DIV>Paul,</DIV> <DIV>I was talking about getting more pin into the bridge, hopefully where the wood might not be as affected by the WD 40. I left the exposed pin height the same as the neighboring pins. I think that due to the pin being much tighter and deeper, the termination is more solid, thus transferring more energy.</DIV> <DIV>As far as the Wapin bridge configuration, and although I'm not versed in this concept, this would be a good candidate to get this instrument to speak.</DIV> <DIV> </DIV> <DIV>Tom Servinsky</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=paulrevenkojones@aol.com href="mailto:paulrevenkojones@aol.com">PAULREVENKOJONES</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> Sunday, July 22, 2007 9:18 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: WD40- Steinway B update</DIV> <DIV><BR></DIV> <DIV>Tom:</DIV> <DIV> </DIV> <DIV>A question. You said that you got more sustain after re-pinning the bridge "with a longer profile". I take you mean that they extend higher above the bridge surface than the originals? Of the two factors--1) new and tight pins, and 2) higher profile--to which do you attribute the longer sustain. There is no experimental data that I know of that speaks to bridge pin height (there has been sporadic discussion on this list), and I know the Wapin folks have played with bridge pin angle and termination position with interesting results. Any thoughts? Or are there too many variables involved here?</DIV> <DIV> </DIV> <DIV>Paul</DIV> <DIV> </DIV> <DIV> <DIV><STRONG>"If you want to know the truth, stop having opinions" (Chinese fortune cookie)</STRONG></DIV></DIV> <DIV> </DIV> <DIV> </DIV> <DIV>In a message dated 07/22/07 07:42:43 Central Daylight Time, tompiano@bellsouth.net writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"> <DIV> <STYLE type=text/css>.aolmailheader { FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: Arial } A.aolmailheader:link { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } A.aolmailheader:visited { FONT-WEIGHT: normal; COLOR: magenta; TEXT-DECORATION: underline } A.aolmailheader:active { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } A.aolmailheader:hover { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } </STYLE> List <BR>Had some time to do some experimenting with this Steinway B which had the <BR>WD40 treatment. If you remember, the instrument was quite decent prior to <BR>the owner spraying WD40 everywhere. Now the tone and sustain is dead. <BR>Many of your suggestions dealt with wood becoming soft, espeically in the <BR>bridge cap.  Some suggestions dealt with terminations be hampered. All good <BR>leads. <BR>1. I cleaned with the termination points ( capo/ agraffe, bridge pins/bridge <BR>cap) on 5 notes throughout the piano. <BR>Result- some clarity improvement, but no improvement in sustain. <BR>Test - plucking the string only ( hammers also are damaged) and listening to <BR>the sustain and quality of tone. <BR>2. Check bridge pinning. So loose they came out by hand with ease. <BR>   Installed #8 bridge pins with longer profile <BR>Result:  Increase in sustain by 5 seconds. Tone much fuller. Still not up to <BR>my expectations, but an improvement no less. <BR>Some good news:   the wood on the bridge cap appeared very firm and not <BR>mushy. <BR>My hunch is that once the board is stripped, sanded, and refinished, new <BR>bridge pins installed, new agraffes, and capo cleaned/shaped thoroughly, the <BR>sustain will improve dramatically. <BR>I'll keep you posted. <BR>Tom Servinsky <BR><BR><BR></DIV></BLOCKQUOTE> <DIV> </DIV></BLOCKQUOTE></BODY></HTML>