Why don't you measure the string lengths and compute the scale from the piano in front of you? Several string makers (and others) would be willing to help you get it done. Sorry, I have no knowledge of the wire sizes (or temper) you found on the bridges. Good luck! Patrick Draine On Fri, Sep 3, 2010 at 11:11 AM, Roger Gable <roger at gablepiano.com> wrote: > I'm restring a 1919 Grotrian grand piano that has been previously > re-strung by someone who obviously didn't follow the original wire gauge > marked on the bridge. The wire size numbers marked on the bridge start with > 7 3/4 in the treble and end at 11 in the tenor. Does anybody know the > conversion formula for these numbers? Also, would the temper of this > original wire be significantly different from the current wire produced? > Roger Gable > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100903/055bd6dc/attachment.htm>
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