It entails chucking up Q-tips in a drill, and polishing the agraffe holes with them them. There was an article last year in the Journal written by Paul Revenko-Jones, with very groovy pictures and everything. Labor-intensive, but if you've ever encountered those agraffe zings Avery's talking about, especially in a recording studio, as I have twice, you start to see the value of preparing agraffes. The best to you, my brother...... DA > David, > Enlighten me about the Revenko-Jones-Protocol-prepared agraffes. I'm not > familiar with them. > Tom Servinsky > ----- Original Message ----- > From: <david at davidandersenpianos.com> > To: "Pianotech List" <pianotech at ptg.org> > Sent: Saturday, April 01, 2006 5:29 PM > Subject: Re: Baldwin SD > > >>> 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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