Hi Ric, I think the mechanism may be the height of the string leaving the pin. I suspect flag poling of the pin is fairly important (more important that most realize). The coils in any event are a small issue--and easy and quick to tap. I do have one Samick grand piano that has tuning pins at all sorts of different heights. It is infrequently serviced and always for performances. I dread it and have often vowed I'd say *no* the next time they call. I guess I'm too soft hearted or too stupid to say *no*. At 10:23 PM 3/25/2007 +0100, you wrote: >Interesting. Don is one of those guys that pays attention to this kind >of detail... so if he says he's measured and observed some small >difference I certainly wont discount his claim out of hand. > >I dont see the mechanism that would achieve this tho... at least not >clearly. > >Cheers >RicB > > I certainly would not let down the tension to tighten coils. > > With respect, I have measured the difference in unison stability with > sloppy coils. There is a small but measureable difference, after lifting > coils and tapping them down to form nice tight coils on upright > pianos that > are 50 years old and equipped with humidity control systems. > > I routinely check each new client's piano by testing three pins. If > there > is no pitch drop then I accept the coils. If any of the three change > pitch > then I take the time to address the coils > > > >-- >No virus found in this incoming message. >Checked by AVG Free Edition. >Version: 7.5.446 / Virus Database: 268.18.17/731 - Release Date: 3/23/2007 3:27 PM > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-539-0716 or 1-888-29t-uner
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