Stacy, An regular nail file works great for this. (not the metal kind!) Laura Olsen -----Original Message----- From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf Of Stacy Adams Sent: Thursday, January 18, 2001 1:15 PM To: pianotech@ptg.org Subject: Re: Bzzzing Dampers 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 > > > > > > >_________________________________________________________________________ > > Get Your Private, Free E-mail from MSN Hotmail at >http://www.hotmail.com. > > > _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
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