Killer octave scores hit Deadly mysterious magnets found in piano Piano tuner knows nothin, seen nothin, heard nothin Prepared piano folks hauled in for questioning On 5/16/07 11:31 PM, "Bob Hull" <hullfam5 at yahoo.com> wrote: > The first person with a pace-maker who gets near your > piano will be dead. > > Bob Hull > --- Richard Brekne <ricb at pianostemmer.no> wrote: > >> Esteemed colleagues: >> >> Hi Dave >> >> I'm going to suggest something a bit radical... but >> very very reversable >> in case it has no benificial effect, and will make >> for a I think very >> interesting and easy to execute experiement. >> >> Buy 3 pairs of 35 kilo force high power natural >> neodymn magnets. Mount 3 >> of these at even spaces under the killer octave >> area... with at least >> one if not two on ribs just under the bridge in the >> area. Then construct >> a beam that fits nicely inbetween the rim braces and >> mount the other >> three so that they are exactly under the three you >> mounted on the >> underside of the soundboard. If you want to get a >> bit fancy you can >> contrive this so that these have adjustable height >> screws going through >> the beam. >> >> You should be able to provide over around 80 kilos >> of repelling force... >> i.e. crown support in the area in question... and >> you should be able to >> adjust just how much you actually need if you want >> to. >> >> I'm about to run an experiement on an older piano >> where I install a new >> soundboard with ribs designed to provide optimal >> mass for the various >> areas of the panel and provide the additional needed >> load support with >> these magnets. Each magnet has around 35 kilos of >> force. Opposing you >> can get them within a couple mm of each other safely >> enough for the >> application and get around 40 kilos of repelling >> force max... but in >> practice I'd guess around 30 would be more like >> it... However... 30 >> kilos of upwards force is a quite significant >> addition. You add nearly >> no mass... there is free air between the magnets so >> you are not coupled >> mass wise to the beams.... >> >> I'm personally itching to try this. 6 such magnets >> are quite inexpensive... >> >> Cheers >> RicB >> >> Our NY D, (1983) has developed - in the last >> year or so - a killer >> half-octave from about A#5 - E6. I've added >> some mass to the bridge >> right under C6 and that helped a little but the >> problem remains. I've >> been searching through the archives this morning >> checking for any >> further heroic measures I could take within the >> confines of my budget. >> >> >> >> What's the general consensus of opinion about >> the "Treble Tone >> Resonator" that Pianotek sells? While my >> current budget precludes a >> full remanufacturing I think I can manage the >> $155.00 for that! >> However, I don't want to spend even that - nor >> expend the time >> installing it - if it wouldn't help. >> >> >> >> Any ideas, suggestions, experience with it >> etc.????? >> >> >> >> dave >> >> > > > > > ______________________________________________________________________________ > ______Luggage? GPS? Comic books? > Check out fitting gifts for grads at Yahoo! Search > http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=bz
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