---------------------- multipart/alternative attachment Maybe it's the "quasi-cut off" bar that is the buzzing source. (The maple piece that ties several ribs together.) Bill Maxim <wmaxim@sc.rr.com> wrote:An institution (University) I service bought a 1921 Steinway B for their recording studio and had a colleague rebuild the instrument about 6 months ago, a truly beautiful job. It has in the meantime developed a buzz (very slight but annoying) very similar to the sound of a small screw lying on the sound board. The buzz shows up around B5-C6. Nothing is on the sound board. Nothing shows up feeling around under the plate. Pressing on the bridge/board in that area makes no change. However, pressure on the board toward the bass about a foot in from the belly rail quiets it, as does pressing up from beneath at the same point. The board was not replaced but was shimmed using a router from Spurlock. There are no loose ribs, no run-out glue at the rim, no sign of any separation in the shims or otherwise that I can see.. Both the rebuilder and I are located about 100 miles from the university. Since I am there regularly it falls to me to handle the situation until he can get there. In desperation, I fell back on the frowned-on practice of wedging something between the board and a beam. I wedged a rubber mute + wooden wedge up under the lath (what is its correct name?) that connects 3 ribs in that area. It stops the buzz for now. Reflecting on the situation, I wonder if the piano needs a cut-off bar in that area to isolate that portion of the board; and I have in effect provided one. I would appreciate comments and suggestions on where to look for the real cause of the buzz, how to correct it, etc. I have the fortunate situation that the faculty member who oversees my work is a member of the Guild and enrolled in the Randy Potter course. In fact, he got to Nashville last week and I didn't! It is a pleasure to work under someone who has the interest if not the experience. Bill Maxim wmaxim@sc.rr.com Vince Mrykalo University of Utah --------------------------------- Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/9f/06/19/37/attachment.htm ---------------------- multipart/alternative attachment--
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