Relocating was a bad choice of words, I was thinking that one might have to raise the back end of the plate. I can see with the addition of vertical accuhitch pins this would be unnecessary. Has the ideal backscale length been quantified? David Love davidlovepianos@earthlink.net > [Original Message] > From: Delwin D Fandrich <pianobuilders@olynet.com> > To: Pianotech <pianotech@ptg.org>; <davidlovepianos@earthlink.net> > Date: 5/7/2003 1:11:17 PM > Subject: Re: Rear Duplex Bars on Steinways: was Baldwin Accujust... > > > ----- Original Message ----- > From: "David Love" <davidlovepianos@earthlink.net> > To: "Pianotech" <pianotech@ptg.org> > Sent: May 06, 2003 9:12 PM > Subject: Rear Duplex Bars on Steinways: was Baldwin Accujust... > > > > This discussion reminds me of something that I have wondered about with > > reference to rear tuned duplexes and the effect on backscale length. > When > > replacing a soundboard on a piano with aliquots, such as a Steinway, one > > could, conceivably, reset the plate such that the rear aliquots could be > > removed adding some backscale length to the treble and mid tenor. Would > > that added backscale length contribute anything to improving the tone, > > i.e., is the backscale length on Steinways theoretically shorter than one > > would design it under ideal circumstances. > > > > In some versions it is very short indeed. Our usual approach is to simply > remove the back so-called 'aliquot bar' and use vertical hitches. If there > is a desire to retain the aliquot bar for aesthetic reasons it is also > possible to relocate it some further back. With a bit of grinding it can > usually be placed far enough back to bring the backscale up to an almost > reasonable length. > > Relocating the plate is not a easy as it looks. It requires plugging and > drilling to relocate the nosebolts, grinding the bass end of the plate > flange for clearance, relocating the action for strikeline, etc. > > Del
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