Yesterday I tuned a Wapin Knabe 6'4" that is really very nice. Round tone, smooth, slow decay even in the killer area. Very nice piano indeed. I tuned it before it was "Wapinized" and while nice, it was not what it is today. dave *********** REPLY SEPARATOR *********** On 1/24/02 at 3:54 PM Ron Nossaman wrote: >>It strikes me that the main thing about the Wapin arrangement is the >>near perpendicular disposition of the front pin. Without reading >>right through the patent I can't be sure if he says anything about >>the way the "bearing point edge" is cut and whether a small vertical >>drop is desirable (a feature Wolfenden admires in the practice of one >>maker, probably Ibach) or whether this angle should be at least >>steep, as it certainly is not on the Steinway. > >Yes, the vertical pin is the pertinent point. Tim Coates straightened me >out on this a while back. The purpose of the vertical pin is to steer the >string oscillations to horizontal, or parallel to the soundboard. This >slows energy transfer to the bridge/soundboard and extends sustain as a >result. > > >Ron N _____________________________ David M. Porritt dporritt@mail.smu.edu Meadows School of the Arts Southern Methodist University Dallas, TX 75275 _____________________________
This PTG archive page provided courtesy of Moy Piano Service, LLC