<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <body bgcolor="#FFFFFF"> Del and Dale, <br>    Aren't they somewhat tonal? If you strike them with, say, a rubber mallet wouldn't you get a kind of a BONG sound? How about adjusting them how you adjust bicycle spokes? All the same pitch! <p>Greg <p>P.S. any reason to lower the pitch first? <br>  <br>  <p>Delwin D Fandrich wrote: <blockquote TYPE=CITE><style></style>   <blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000080 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 href="mailto:Erwinspiano@AOL.COM" title="Erwinspiano@AOL.COM">Erwinspiano@AOL.COM</a></div> <div style="FONT: 10pt arial"><b>To:</b> <a href="mailto:pianotech@ptg.org" title="pianotech@ptg.org">pianotech@ptg.org</a></div> <div style="FONT: 10pt arial"><b>Sent:</b> December 01, 2001 9:11 PM</div> <div style="FONT: 10pt arial"><b>Subject:</b> Tighting Mason resonator</div>  <font face="arial,helvetica"><font size=-1>  List</font></font> <p><font face="arial,helvetica"><font size=-1>      I know ,I know were not supposed to tighten the bloomin centripital resonator device on Mason & Hamlins but ya know this one was loose and causing a real nasty buzz.</font></font> </blockquote> <font color="#000080">You know, I've been told this for years. Wasn't one of the benifits of the Centripital Tension Resonator supposed to be that it could be adjusted to 'restore' crown? Surely you'd have to tighten them to accomplish that little trick, wouldn't you?</font> <div style="MARGIN-RIGHT: 0px"> </div> <div style="MARGIN-RIGHT: 0px"> </div> <blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px"><font face="arial,helvetica"><font size=-1>  While tapping on the board with my fist I hit the spider and it was really loose and vibrating.The loosest was the one going straight back to the end of the tail. I ended up tighting three of the rearward struts till I could just hear the case slighty creak / groan, you know snug.</font></font></blockquote> <font color="#000080">That's basically what I do, if it needs doing at all. I always bang on them just to be sure they don't rattle or buzz. Most are. Anyway, I just try to get them snug. I don't like hearing the case creak and grown, though. You're brave. I've pondered what I'd do if I ever pulled one out...</font>   <blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px"><font face="arial,helvetica"><font size=-1>    Maybe it was my imagination but the sustain which was already good got better where it counts. I guess it does makes sense considering the case impedance was no doubt  enhanced.</font></font></blockquote> <font color="#000080">I sure hope it was your imagination considering how massive those rims are and how well braced they are even without the CTR.</font><font color="#000080">Del</font></blockquote> <p>-- <br>Greg Newell <br><A HREF="mailto:gnewell@ameritech.net">mailto:gnewell@ameritech.net</A> <br>  </body> </html>