Dampers

[David Love]

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
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>