Thanks for mentioning the other posts and your results. I will definitely keeps this in mind. On Mon, Aug 10, 2009 at 4:22 PM, Floyd Gadd<fg at floydgadd.com> wrote: > List, > > I continue to fuss with the touch responsiveness of my 41" > Nordheimer/Heintzman console (1966). After moving forward from reweighting > the keys to some final regulating, I remained unsatisfied with my results. > The question of how to deal with the influence of the hammer return springs > was eluding me. > > I found a post in the archives by Stephen Schell (November 18, 1996) under > the title "Small vertical key flop". He recommended weighting the keys to an > upweight target of 15 grams, with the hammer held out of the way. > Downweight was then set by regulating the hammer return spring. > > I've tried this on a sample, and it makes a tremendous difference. Key > return is no longer dependent on either the damper spring or the hammer > return spring. Downweight is at 46 and upweight is at 35. This is > consistent with the small Yamaha upright I am using as a basis for > comparison. And the Yamaha upright has an upweight of something more than > 16 grams with the hammer taken out of the equation. > > So now I need to reweight my keys again, adding more weight behind the > balance rail, and weakening my hammer springs. > > Who was it on this list that said recently that any job worth doing is worth > doing over? > > Floyd Gadd > Manitoba Chapter > > -- Regards, Jeff Deutschle Please address replies to the List. Do not E-mail me privately. Thank You.
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