Hello Andrew - any chance of a piccy? Michael of Sussex (UK) ----- Original Message ----- From: "Andrew & Rebeca Anderson" <anrebe@laredo.globalpc.net> To: "Pianotech" <pianotech@ptg.org> Sent: Tuesday, June 21, 2005 4:40 PM Subject: Re: Pitchlock > The pitch-lock devise is a 'staple' for lack of a better description that > grips two adjacent strings and couples their harmonic motion. This > coupling does come at a price. The highest partials & noise is muted. > That is why you only couple the two worst strings of a noisy three string > unison. You couple out the out-of-phase noises and keep one loose for > "life" in the sound. > Bass strings lose a lot of their "airiness" when coupled. Balanced > against very noisy strings in, say, a chinese piano this may be a good > choice. It is not something I'd consider first in a performance venue > instrument. But to tame a noisy customer piano that is hard to tune and > doesn't respond to termination work, why not? > The device's inventor was clear that this solution is not for all pianos > and for all situations. Try out and use judiciously. I can think of a > Pramberger upright that will get these on some noisy bass strings, also a > Yamaha C7 with several screaming front duplexes (yes the capo should be > re-milled, try getting that through a committee). You can use these to > couple all three duplexes and then tune them to a desired partial by > sliding them to or away from the center of the duplex. Quite cool > actually. > > Andrew > > At 02:05 PM 6/20/2005, you wrote: >>Hello List and Paul C. >>For those able to attend that class this must have been a day of >>Revelations. (Not religion!) But for those unable to attend I wonder what >>a "Pitchlock" is? Is it something like the "Wolf Arrester" I have on my >>'cello "C" string? >>Regards >>Michael G.(UK) >>----- Original Message ----- >>From: <mailto:tune4@earthlink.net>Paul Chick (Earthlink) >>To: <mailto:pianotech@ptg.org>'Pianotech' >>Sent: Monday, June 20, 2005 2:09 PM >>Subject: RE: Pitchlock >> >> >>Subject: Pitchlock >> >>Has anyone had experience with the pitchlock devices. It sounds like >>something that would help with some wild bass strings, and maybe even some >>false beating treble strings. However the startup cost is pretty hefty. >>Not bad if it does what it says, but I thought I might inquire from the >>list first. >>Any thoughts?? >> >>Ed Carwithen >>John Day, OR >> >>Ed >>The class on Pitchlock at the K C Institute demonstrated their use. >>Attendees listened to the "before" and the "after" in the speaking >>lengths, front and rear duplex. They work as claimed. >> >>Paul C > >
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