At 01:27 PM 8/24/2006 -0500, you wrote: >At 11:47 AM 8/24/2006 -0500, you wrote: >>But as Ron N. asked, I still don't understand why "doping" the pin block >>would cause extra stress on the bridge??? >> >>Avery > > >Avery, > >I'm not Ron N. or Julia, as they would both be VERY quick to point out, >but I'll put out a possible cause/effect sort of thing, anyway... > >If "doping" the pinblock is an effort to make tuning pins hold at a >tension commensurate to that needed to tune the piano at a standard pitch, >then, if the treatment is successful, and the piano is then brought up to >that standard pitch, the total tension on the instrument will be higher >than in it's untunable state and (big caveat coming...) if there is any >downbearing on the bridge, there will be more pressure on the bridge. > >Am I close?? Also... If there is any stagger left to the bridge pins, the increased tension would exacerbate any pre-existing cracks. Conrad Hoffsommer - Keyboard Technician Luther College, 700 College Dr., Decorah, Iowa 52101-1045 1-(563)-387-1204 // Fax 1-(563)-387-1076 - Right now, I'm hoping to live until my age matches my golf score, - Until then, I'll have to be content to have my IQ match my handicap.
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