> What's a UK 4460? Patent number from Harding. Has to do with the design usually attributed making upright pianos popular, so distorted copying starts earlier. > log scaling never got to the bass section Excel gives l_1*0.985720825^n, with n=1 for the lowest note on the bass bridge (9, really), l_1 its length (1117mm). In practice, it's two connecting straight segments, while the treble bridge is two intersecting arcs (%BS identical for plain wire). vbf = 1.650*1.135*0.300*? (tail = 0.520, perp. to spine; cheek = 0.615) Burly baby with a funny voice. > Ignore the % of breaking strength which I've found doesn't agree > with published wire specifications. Parsons used a single figure for breaking strength, looks from about 1.25mm diameter Röslau wire. Gives low in treble. This could be corrected accurately without resorting to an LUT. Clark
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