[pianotech] Damper Lever Resistance

Jon Page jonpage at comcast.net
Sun Nov 7 14:04:21 MST 2010


I set the spring tension on a digital scale with the lever a little higher
than its rest position. Starting with around 28g in the bass tapering
to 22g at the tenor break and tapering further to 10g if the springs
encompass the entire tenor section.

I make springs of lighter diameter to cover the higher underlevers
so as not to reduce the tension on larger diameter springs. This is
in a effort to not have a large difference between sprung and unsprung.
-- 

Regards,

Jon Page


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC