I use two techniques to assess soundboard life, along with more "normal" tests such as measuring crown with a gauge or bearing sticks, or measuring crown with a straight edge between the strings or a string along the longest rib on the underside: plucking strings in every section and listening to the sustain, power , and resonance, and thumping the board from underneath with the "meat" end of my closed fist and doing the same thing. Your ears are truly your best tool.... DA On Nov 26, 2010, at 6:54 AM, <johnparham at piano88.com> wrote: > Jim and List, > > Thanks for verbalizing this technique. I was exposed to it several > years ago and use it fairly frequently. I have no idea how widespread > this idea is. Without overstating the obvious, I wonder if it is worth > posting in TT&T (I'm always looking!) > > More interestingly, I wonder if there are other simple, handy techniques > that other technicians use when collecting diagnostic information about > the soundboard variable? > > Ideas? > > Happy Thanksgiving to all, > John Parham, RPT > Hickory, NC > > >> -------- Original Message -------- >> Subject: Re: [pianotech] re. Small vise grips for mass loading >> From: jimialeggio <jimialeggio at gmail.com> >> Date: Tue, November 23, 2010 1:53 pm >> To: joegarrett at earthlink.net, pianotech at ptg.org >> >> >>> >>> I can see these CHEAP knock-offs being used for the mass loading >>> thingee or perhaps holding the clutch linkage of your 1958 >>> International Truck, but to use those pieces of junk for anything else >>> would be a real travesty. >>> >> True...complete agreement...however,it just aint worth a serious tool >> investment to have a number of duplicate expensive single purpose grips >> sitting unused in the toolbox most of their lives. Sometime junk has it >> uses. These are junk, but in this case I think junk is just fine...one >> just needs to keep their expectations appropriately low. >> >> Jim I >> >> >> >> -- >> Jim Ialeggio >> grandpianosolutions.com >> 978- 425-9026 >> Shirley, MA >
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