<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">In a message dated 1/24/2002 10:46:08 AM Pacific Standard Time, Karintunes@AOL.COM writes:<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:<B>Haunted new soundboard </B><BR>
Date:1/24/2002 10:46:08 AM Pacific Standard Time<BR>
From:<A HREF="mailto:Karintunes@AOL.COM">Karintunes@AOL.COM</A><BR>
Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A><BR>
To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A><BR>
<I>Sent from the Internet </I><BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0">Dear List,<BR>
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A customer of mine has a very old M&H Grand with a new soundboard that has me, and the rebuilder's head technician, stumped.<BR>
It is resonating at all the partials in the overtone series of one note. It's not the string tails, and not the spider. 5</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0"></BLOCKQUOTE><BR>
>>>>>>>>>>> Hi Karen<BR>
I too am a rebuilder and have recently had a smilar problem on a Mason A that I just put a board in. In my case however and for the first time I discovered that the arms on the spider(centripetal resonator) were actually loose. Now I must admit that I did spend an anxious hour looking for the problem and at first dismissed the spider it until I started pulling and pushing on it. It's worth a double check. The notes that were most affected in my A were around c-5. I ended up tighting 3 of the arms and the vibration/overtone went away. Wish it were always that simple.<BR>
I am unclear as to your description of the problem. Perhaps you could clarify your "its resonating at the partials of one note" statement.<BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0"> It is loudest in the curve of the case.<BR>
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>>>>>>>>>>Mine was loudest at the belly rail. Sound travels. Karen it's is usually something simple you just have to keep looking. Tighten all the trap screws and any case screws. If I get any brain storms I'll get back. Right now my brain is begging to be fed.<BR>
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Regards--Dale Erwin<BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0"><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"><BR>
Newton tried to put me in touch with someone, but I haven't been able to find the fellow.<BR>
If someone well versed in soundboard theory would contact me, I'd be much obliged.<BR>
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Karin Schmitt-Read<BR>
Karintunes@aol.com<BR>
Florida</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0"></BLOCKQUOTE><BR>
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