Jon: Do you actually take double split trichords up as far as G#4? I seem to recall something different from you in a previous post, or am I mistaken. That seems high to me. I generally stop doubles by middle C. I suppose my idea is that I want similar shut off from bottom to top so that if you play a staccato chord with any combination it tends to die out at the same time. Doubles up that high , and I presume combos even higher, can give too clean a shut off up there, sort of like a Yamaha. David Love ----- Original Message ----- From: "Jon Page" <jonpage@attbi.com> To: <pianotech@ptg.org> Sent: February 24, 2002 11:52 AM Subject: Re: Dampers > 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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