Check our vector, Victor. Roger, Roger. This has been very interesting ... learned some new things ... but wasn't really asking about "wild strings," per se, just inquiring about justifications for the practice of "staged" pitch raises--this after I read on the pianofinders.com faq site that, specifically, it helps reduce the incidence of false beats. Goes in the same bin with these, I guess: Hammers should be "reinforced" with gray dye, OUR plates are made of bell metal, and It's an upright/cabinet grand. Nothing useful, Ron? I think naught! Upright grand, sideways well, inverted stickers, goose down, left out, right on, and toss up. Now THAT's nothing useful, despite the specific directions given. Thanks for the tips, folks! Alan Barnard Salem, MO -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On Behalf Of Ron Nossaman Sent: Friday, March 28, 2003 11:28 PM To: Pianotech Subject: Re: Falsies >Maybe what is being worried about is the sudden increase in pressure on >the bridge pin, from the side draft at the new pitch. Who knows how to >calculate the pressure a string at pitch exerts on a bridge pin, and what >change ins pressure the bridge pin would feel when the speaking length >pitch as changed 100-150¢. (It might even be negligible.) > >It's a great sales pitch though, a sure calender-filler. > >Bill Ballard RPT Roughly, the sine of the angle times the string tension will get you in the ball park. At the 10° or so string offset angle on bridges, it's not exact, but close enough to not tell you anything useful in this case. Ron N _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives
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