Hi Eric, I've done a wee bit of CA-ing on finer grands, including a couple D's. I really don't think there is anything to worry about overmuch beyond the aesthetics. IOW, if a bit of CA manages to get in what your imagination will tell you is a bad place, it won't have a noticeable effect (this from experience with less fine instruments, where I have CA'd entire sections - capo - without worrying overly much about where the flow managed to get to, and noticed no ill effects whatsoever. Worrysome places being between string and bridge, and in the pin/ notch/string interface). That said, on the finer instrument, I am very careful to control the CA as much as possible. I like to use a very fine end (as in ZAP ends), and apply to the bridge side of the pin right behind the string, watching it wick. Just enough to wick into the crack between pin and bridge. As Roger suggested a while back, a bit of paper towel or similar, placed between string and notch, will absorb what might flow over. Controlling extra thin CA is a trick, and best practiced in the practice room a few times first. I have had reasonably consistent good results. IOW, CA has always reduced false beating, and usually come close enough to eliminating it. Well worth the effort (very minor expenditure of time). Seems to be reasonably long-lasting. I haven't been doing it long enough to vouch for long term in multiple years - I guess two years is about the limit of my experience, best I remember. Regards, Fred Sturm University of New Mexico Quoting "Wolfley, Eric (wolfleel)" <WOLFLEEL@UCMAIL.UC.EDU>: > Has anyone ever done any investigations involving the tonal impact > these > units might have on a stage piano? It seems to me that you would have > to > lose a certain amount of power since sound is coming off the bottom > of the > soundboard as well as the top. I know these units have great value in > studio > and home situations, but I just can't imagine it not affecting the > piano's > tone and power. And by the way, just as a reminder about how this > thread > began, I haven't heard from anyone about gluing bridge pins on a > concert > instrument...it seems like a great idea to be able to stabilize the > wood > around these pins. I guess I'll just have to go up into a practice > room and > find out for myself... > > ~~~~~~~~~~~~~~~~~~~ > Eric Wolfley > Head Piano Technician > Cincinnati College-Conservatory of Music > University of Cincinnati > ~~~~~~~~~~~~~~~~~~~~ > > > -----Original Message----- > From: Don [mailto:pianotuna@accesscomm.ca] > Sent: Friday, October 10, 2003 7:25 AM > To: College and University Technicians > Subject: humidity control in concert pianos > > > Hi Jeff, > > I've changed the thread. > > That's very simple to arrange. Take a rechargeable emergency > flashlight, > replace the bulb with a buzzer and splice it into the power cord of > the DC > unit. When the unit is unplugged it will buzz for about 20 minutes. > Trust > me--they will plug it in! I'd really appreciate the DC people > including > this as an optional "add on". > > A refinement to this would be to use one of the many uninteruptible > power > supplies that are used on computers--I do think this is overkill--but > I'd > do it in a flash if I could purchase a unit where the "beep" could > be > turned off for concerts--there would then be no cords needed during > a > performance. > > The local University concert venue's here have DC units on the two > pianos > used for that purpose. > > > At 10:55 AM 10/10/2003 -0400, you wrote: > >If he's like us, there is no way to expect to keep one plugged in on > a > >concert instrument. > >Jeff > > > >On Friday, October 10, 2003, at 08:35 AM, Don wrote: > > > >> Hi Eric, > >> > >> Why no hope of a DC system with bottom cover? > >> > >> At 10:12 AM 10/10/2003 -0400, you wrote: > >>> to dry out it reverts a devilish false beat capo noise monster. > >> Unfortunately, most of the concerts are during the dry months and > > >> there is > >> no hope of any climate control. > >>> Eric Wolfley > >> > >> Regards, > >> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. > >> > >> mailto:pianotuna@accesscomm.ca > >> http://us.geocities.com/drpt1948/ > >> > >> 3004 Grant Rd. > >> REGINA, SK > >> S4S 5G7 > >> 306-352-3620 or 1-888-29t-uner > >> _______________________________________________ > >> caut list info: https://www.moypiano.com/resources/#archives > >> > > > >_______________________________________________ > >caut list info: https://www.moypiano.com/resources/#archives > > > > > > Regards, > Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. > > mailto:pianotuna@accesscomm.ca > http://us.geocities.com/drpt1948/ > > 3004 Grant Rd. > REGINA, SK > S4S 5G7 > 306-352-3620 or 1-888-29t-uner > _______________________________________________ > caut list info: https://www.moypiano.com/resources/#archives > _______________________________________________ > caut list info: https://www.moypiano.com/resources/#archives >
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