Hi Richard, Apparently the magnetic action does change more than just static weight. Or so it is being claimed--if I understand what is on this website. You are better equipped than I am to understand this. http://home.hetnet.nl/~velo68/internlinks/EPENG%20version2ws.htm At 02:42 AM 30/12/2004 +0100, you wrote: >Don wrote: > >>Hi Richard, >> >>My understanding was that the magnetic action was one step further than >>Stanwoodization. I.e. Stanwood *plus* more. > >Hmm... I dont think so really. Lets see ... David himself offers a >magnetic alternative to whippen assist springs, but beyond that there is >no one who directly employs a Stanwood like action balancing process. I >guess the closest thing to it is the pattern leading you see from some >few manufactures combined with a dead weight hammer mass spec. Still >this is a few steps back from a full fledged Stanwood balancing. They >dont even use his equation of balance, but rather something more akin to >the Pfieffer calculation. Refining usually is done by removing key lead >mass until static DW conforms, but in the case of whippen assist or >Seilers (and others) magnetic assists this is done by adjusting the >strength of the assist mechanisim. Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-352-3620 or 1-888-29t-uner
This PTG archive page provided courtesy of Moy Piano Service, LLC