[pianotech] X-Ratcheting Counter Bearing Shim

Bruce Browning - The Piano Tuner justpianos at our.net.au
Sun Apr 11 15:28:58 MDT 2010


Jon,
Excellent idea.
Explain your photos. Are they two different versions of the same idea, or
before/after?



> The ratcheting is gone and the tuning is smooth. This would be a quick
> field
> work-around. I would use 3/8" stock and make them neater.
>
> I settled on 1/8 x 1/4" half-round stock. Looks much better. The wire is
> lifted
> with an offset screw driver with a piece of plastic credit card stock
> underneath
> (a palette knife underneath still marred the plate). No need to let the
> tension
> down, net result 1/4 tone rise in pitch.  I need to install these
> throughout the
> entire tenor section.




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