Hey, Carl. You seem pretty active for a guy who was planning to do some serious kicking back. <G> Since you're "not" working so much, are you also "not" going to be in Kansas City? If you are "not" then "don't" look me up, or should I "not" look for you in the Chinese section. Alan Barnard Salem, Missouri > [Original Message] > From: Carl Meyer <cmpiano@comcast.net> > To: <pianotech@ptg.org> > Date: 05/15/2005 5:22:51 PM > Subject: M & H upright > > This is a 1903 M H upright that I've restrung after rescaling and just put > on a new set of Ronsen hammers with Bacon felt and soft maple cores. It has > a pianocorder installed. My main concern has been to have a piano that > plays softly. After installing about 130 pianocorders the biggest complaint > has been "Its too loud" "Go in the bathroom if you want to talk" There is > a normal threshold where the piano won't play. Pneumatic pianos have the > most power at the beginning of the stroke but solenoid driven ones have the > most power at the end and its not linear. It's not easy to get a solenoid > to perform like a pneumatic. > > My intent was to use soft light hammers and reduced stroke to make the piano > play as soft as possible and still function well. > > Other ways to reduce volume would be to stuff shag carpet or foam in the > back between the posts. > > The new hammers were dramatic in reducing the volume. I may have to juice > it up some. > > I reduced the hammer blow to about 1 3/4. I had to adjust the backcheck to > check at 3/8-1/2 inch to prevent bobbling. It seems to play okay manually > (I'm not a pianist) but from the pianocorder it still seems to bobble and > not repeat right. the solenoids seem to be adjusted correctly. > > This piano has the brass leaf springs on the jacks. I have come to the > conclusion that these springs are causing the butts to dance on the jack tip > since the jack gets in the way due to the springs trying to push the jack > back under the butt. This then causes the unstable operation from the > solenoids. > > I'm considering removing the leaf springs. I know they are there to > increase repetition, but in this situation I think they are the source of > the problem. Would I need a flame suit if I removed them? I don't like hot > weather. > > Another thing I'm considering is replacing the hammer return springs. I > recall years ago finding that weak return springs will cause bobbling. > Dampers are on the list as well. > > I just today have contracted to install a pianocorder in a Horugal grand > piano. They want it with a wireless unit from a computer, complete with a > wireless power switch. > > I am sure having a ball with this unit. I can even download some of Yamahas > music and play it on my piano. > > Just go to Pianocorder on Google and find out about Mark Fontana's plug in > that converts midi to pianocorder. I can control tempo, volume and > transpose from the mouse. Lotsa fun and unlimited source of music. > > What do youse all think of removing the lead springs?? Thanks > > Carl Meyer PTG assoc > Santa Clara, Ca. > > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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