[pianotech] Advice about intermittent note on Yamaha grand

Qshooterq at aol.com Qshooterq at aol.com
Sun Feb 14 00:41:12 MST 2010


As an aside for anybody. . . when testing jack center pin tightness, do not 
snap the jack by having your finger slide off the jack toe. Doing so gives 
a false reading because the jack compresses the stopper felt near the top of 
the jack, aiding it's return speed. A jack that is on the edge of being too 
slow will escape detection.
Instead, lift your finger upward off the toe.   ---Tom Gorley
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