Hey, that drawing looks suspiciously a lot like a piano I own and did a little work on...... Terry Farrell ----- Original Message ----- From: Delwin D Fandrich To: pianotech at ptg.org Sent: Friday, May 29, 2009 3:20 PM Subject: [pianotech] The Z-Bar The Z-Bar® is Fandrich Piano Company's trade name for the curved bar seen on the right of this drawing. It is fastened securely to the back assembly at the treble end (just under the top ribs) and becomes increasingly more flexible until it terminates under (behind) the upper end of the bass bridge. I coined the name Z-Bar® because it is essentially a mechanical impedance controlling, or matching device blending the treble, tenor and bass sections of the vertical piano. Simplistically it is the mechanical equivalent to the electrical crossover network found in loudspeaker systems. ddf -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090529/10df3781/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 52412 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090529/10df3781/attachment-0002.jpeg> -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 50109 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090529/10df3781/attachment-0003.jpeg> -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/gif Size: 9726 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090529/10df3781/attachment-0001.gif>
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