This afternoon. I was tuning a Bosendorfer 225 (ca 1978), and just above the top treble break, inside that top section, noticed that a string kept refusing to hold pitch. Hmmm, I thought, a wire about to bust. And soon enough, there was a loud PFanng!, and the entire bottom half of that section had its unisons thrown down by 200-300¢. There was no broken wire, and I looked feverishly for a break in the plate. No cigar again. Then I noticed that the bearing nut (a 1/3 round steel rod set under the bolt-down capo bar) had slipped off the flat surfaced where it belonged and was now down under the strings approximately below the capo's V. The top half of the rod's length was still in place, and these unisons were fine. Boy, talk about the day when you learn the value of extra underwear out in the car! I chipped up the affected strings to temporarily restore the tuning, and explained to the pianist, that there was a chance that the rest of the rod must follow suite, and that I would be back as soon as I could to relocate the bearing nut (Bose's version of a front duplex). It seems like a simple repair, except that I have know idea what the cross-section looks like (the lay of the land, so to speak), whether that cross-section would require that the bearing nut be pinned in place, and whether infact, it was such such a pin which failed in this case. I've already left a message on the answering machine of the PN for Bosendorfer listed in the PTG Directory. Has anybody else had this happen to them? Bill Ballard RPT NH Chapter, P.T.G. "May you work on interesting pianos." ...........Ancient Chinese Proverb +++++++++++++++++++++
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