[pianotech] X-Ratcheting Counter Bearing Shim

Bruce Browning - The Piano Tuner justpianos at our.net.au
Mon Apr 12 22:14:11 MDT 2010


Ron,
Can I just clarify?
This "pinging" is not due to small notches worn into the string, and
trying to remain in position on the bridge/agraffe?
Bruce Browning
The Piano tuner.


> The problem is the friction on the understring felt. Relieving
> that with applications of Protek, brass inserts, weasel
> grease, heat shrink tubing, or fairy dust, would make the
> problem go away. Alternately, it could be fixed for real by
> eliminating the problem altogether rather than dodging it.
> Ron N
>
>




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