Where does the wire get damaged in this equation? It doesn't just break it deforms etc. before it breaks... David I. *********** REPLY SEPARATOR *********** On 11/11/01 at 6:27 AM A440A@aol.com wrote: ><<> I'd be very reluctant to count on it being such that the elastic >limit is >> not reached until the pitch is raised about 200 cents. > >>> I still think, >too, that the localized high stress areas are the places that are more >serious for modern pianos, not the general stress levels.>> > > Greetings, > (I did say that the 200 cents was rough mental). > > The description of the minor third as a breaking limit is amazingly >consistant. This was a premise put forth by Don Galt, (around the early >'60s >I think). I have tried it on numerous restringing candidates and found it >to >be danged consistantly right on. The strings break within 30 cents or so >of >it. Of course, compromised strings will usually let go earlier. Modern >wire breaks later. > A scale that has low tension stringing will let notes go higher than >the minor third, and some pianos with a high tension stringing will see >them >break sooner, but all these limits seem to center around the minor 3rd as >a >general limit. > Try it,wear glasses ! (I put a split cardboard tube over the string >before I break them. > Regards, >Ed Foote RPT
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