----- Original Message ----- From: "John Delacour" <JD@Pianomaker.co.uk> To: <pianotech@ptg.org> Sent: November 29, 2001 11:42 AM Subject: Re: Grand Regulation Compromises > > How old are we Del?? No older than me, for sure, and off hand I can > think of no grand piano since 1880 that will take a 9.5 mm touch with > a 48 mm blow and get a clean escapement. The only piano that has > such a shallow touch is the Blüthner, which has a patent action and a > recommended blow of 43 mm. > I'm sorry, did I say anything about a 48 mm hammer blow? Most U.S. manufacturers were recommending a hammer blow of 45 mm in the 1960s and 1970s. Del
This PTG archive page provided courtesy of Moy Piano Service, LLC