> > Another fun experiment is to see how small an increment you can use to > turn the pin. Then see how many it takes to turn the pin 1/4 turn. When you > get up to around 225 barely perceptable movements, you'll be right up there > with some of the finest technicians in the business. If you're somewhere > around 175, then you'll be like the majority of us. :-) Ok, this is a great idea, and exactly the sort of thing I am talking about- I will try this in the shop tomorrow. Now, that idea leads to this question: In a frictionless world with no other factors, how much of a PITCH CHANGE would 175th of a 1/4 turn translate to? At say, A440? What is the formula for figuring that? [kurt] -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080328/9a13e2e2/attachment.html
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