Bzzzing Dampers

[jolly roger]

Hi Stacy,
              This vintage, loose underlever leads could be a problem, I
have a custom made Yamaha crimping tool that will squeeze the leads with
out removing the under levers. When one or two are loose more will follow
garanteed. I'll loan it to you, just pay the Puralator bill.  The second
offender is badly worn guide bushings. A bright gal like you will have
checked the tightness of the under lever flange, thats a third option.
Finally the felt has become depressed and hard. Call me late in the week if
you think I can help.
warm regards Roger


At 08:36 PM 1/17/01 -0700, you wrote:
>
>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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