At 11:35 AM 2/24/2002 -0800, you wrote: >I just installed a set of dampers in a grand. The first three notes above >the bass break have been converted to bichord wound. The wedge dampers >work great there. The first flat dampers above that ring a bit. I didn't >use very long pieces of flat (two pieces) on those. I'm thinking that >after I get the action finished and installed I might want to improve >those first few. Using trichord dampers comes to mind. > >My question is: If I use one piece of flat felt and one piece of trichord >felt, should I put the trichord toward the agraffe or the bridge? Or, >would it be best to use trichord both places? > >After some thought, I think the offending ringing may be due to the >shorter segment of the wire and hence a trichord near the agraffe would be >more effective. > >Agree? Show of hands please! > >Thanks > >Carl Meyer Assoc. PTG >Santa Clara, California >cmpiano@attbi.com When installing new felt, I place trichord front and rear up to note G#4. Trichord on the front from there with flat on the rear, However; I make the front trichord felt narrow as well from down around middle C. Most of the whoosh you hear is from the front trichord felt. So by trimming the ends so they do not drag through the wires and decreasing the length of the felt, the noise is minimized. Whooshless dampers. Bending the damper wires so they do not drag on the bushing eliminates noise as well, especially if oxidation forms on the wires. Certain manufacturers do something completely diferent... Regards, Jon Page, piano technician Harwich Port, Cape Cod, Mass. mailto:jonpage@attbi.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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