Ron I appreciate all your work on duplex noise. I've had several pianos with noisy agraffes and the pianist could hear them. After installing new or old cleaned up agraffes a very, very pronounced "zinging" from one string can develop. The "zing" can come and go or just won't go away. It has nothing to do with duplexes. It is the agraffe. It is not worth the cost to "not rebuild" the agraffes (old or new). I've spent days having to repair them after the fact. I am convinced what Paul teaches is vital. It's just that there are quicker ways of doing the procedure that work just as well. But the basic concept is correct as far as I am concerned. Since I have started rebuilding the agraffes on all my rebuilds I have no "zinging" strings attributed to agraffes. I do know what sounds a duplex can make and the sound from a "zinging" agraffe is much different. Again, Ron, I appreciate all your work on duplex noise. Tim Coates tannertuner wrote: > And regarding capos being "more important", perhaps that isn't the right > word. What word would I use to say "that's where we would correct most > of the obvious problems"? In my experience and opinion, most of the problems addressed at the capo are tuned front duplex related, rather than the actual termination. I am curious though, how many techs out there find noisy agraffes to be a problem, and if anyone but the tech hears it. The zingers in the capo section, typically at unison(s) with the longest front duplex(es) are discussed endlessly on both lists and have been since the beginning. For a rampant problem that's worth at least two hours of - someone's - time to avoid, it seems odd to me that there is so very little mention of it in the archives. Ron N -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100806/f6a121ac/attachment.htm>
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