Bzzzing Dampers

[Stacy Adams]

Tom,

I really appreciate the advice. The felt does appear to be quite hard, I'll 
try using some sandpaper and see if the problem improves.

Thanks again,

Stacy.


>Stacy, Try lightly sanding the felt with 220 sandpaper. just one light pass
>on every surface that touches the string may correct or at least improve 
>the
>condition. Replacing the worst offender with new felt would also confirm a
>hardened damper condition. Remote chance it could be a damper guide bushing
>, loose damper head set screw, loose lead weight in the lever,but I think
>you are on track focusing on the trichords, especially given the age of 
>this
>thing. Off the topic I see a lot of string breakage @ the capo on these
>older models . Tom Driscoll
>----- Original Message -----
>From: "Stacy Adams" <adams_piano@hotmail.com>
>To: <pianotech@ptg.org>
>Sent: Wednesday, January 17, 2001 10:36 PM
>Subject: Bzzzing Dampers
>
>
> >
> > List,
> >
> > I tune a Yamaha G1 (1963) for a local piano teacher who has been
>complaining
> > of a buzzing key (D4).  It seems that the buzzing is being produced by 
>the
> > damper, a trichord wedge, as the felt settles between the vibrating
>strings.
> >   The damper appears to be aligned to the strings and the dampers 
>overall
> > are in decent regulation.  There are several other trichord dampers that
> > buzz in this manner, but to a lesser degree.
> >
> > Is it a possibility that the problem stems from the consistency of the
>aging
> > damper felt?  Could the design of the piano (trichord wedges to F4) also
>be
> > a contributing factor?
> >
> > Any ideas to cure this annoying bzzzzz would be much appreciated!
> >
> > Many thanks,
> >
> > Stacy Adams
> > PTG Associate
> >
> >
> > 
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