> List (& especially any of you major rebuilders out there), > > Do any of you have any direct experience with an SD-6 #118127 (1952 I > was told)? > My question is, there is a tone problem in the middle agraffe > section. (It's so hard to describe > sounds in an e-mail.) The dealer kept saying he thought it was > primarily a hammer fitting/string > leveling problem. Yes, there is some of that that needs to be done. > But I believe it's a problem > in the agraffes themselves. This isn't a hammer fitting type of > sound. It's a distorted/zinging > kind of sound. Like a termination problem or something not seated > well. > Am I on the right track about the agraffes? Thanks. > Avery Todd Yup, I think you are; I've had the same thing happen on a couple different pianos with original agraffes---kind of a metallic "emphasis" on a certain overtone in the note played and exacerbated by volume. Here's what fixed it, TEMPORARILY, for me: let the string down one quarter turn; the kink or bend in the string as it enters the agraffe needs to be "massaged" to a point where it's "straighter." Do that, return the string to tension, listen and repeat until the sound diminishes. The real fix? Obvious. Restring the entire piano with new, Revenko-Jones-Protocol-prepared agraffes. This would seem to be a great leverage point in the purchase price. The strings are 50 years old; they're done, especially for a school application. Sounds like a no-brainer to me. Have fun. David Andersen
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