Ironically, I've had to perform this operation on two GH-1s over the years and both had been subjected to the ire of old tom cats with an irritable bladders so, needless to say, they were complete restringings with new dampers... Keep up the good work Ryan. This might make for an interesting class in Kansas City next summer! Allan Allan Gilreath, RPT Registered Piano Technician President - Allan Gilreath & Associates, Inc. website - www.allangilreath.com <http://www.allangilreath.com> email - allan at allangilreath.com <mailto:allan at allangilreath.com> phone - 706 602-7667 On 9/27/2010 7:17 PM, Ryan Sowers wrote: > On the piano I mentioned above, replacing the dampers was unnecessary. > The trichord wedges fit very nicely in the new bichords which were > slightly wider since we used the original agraffs. If we had switched > agraffs we would have had to switch dampers too, but using the > original agraffs eliminated this need. A little hokey? Maybe! But the > piano is kinda hokey too so it seemed appropriate! And it saved the > client $$. > > On Mon, Sep 27, 2010 at 4:00 PM, Ron Nossaman <rnossaman at cox.net > <mailto:rnossaman at cox.net>> wrote: > > On 9/27/2010 5:41 PM, Barbara Richmond wrote: > > Thanks, Allan. > > I understand about humidity control, but I was under the > impression that > the scale design deficiencies of those notes in low tenor do > affect how > far and quickly they go out of tune--they're touchy, right? > > > Yes, and I think that's what he's saying. Getting rid of those low > break% low tenor notes improves stability across the break > tremendously. > > I've only done one of these. Four bichords, added two hitches, and > left the original trichord agraffes. Changed the affected dampers > too, of course. No other rescaling, restringing or anything else. > It was just a low tenor conversion. It seems to me I hung about > 100g of brass under the low end of the bridge too. > > It makes them less awful, but since you can't change the speaking > lengths, the wraps get down to about 0.008" on the last bichord. > For what it's worth. > > Ron N > > > > > -- > Ryan Sowers, RPT > Puget Sound Chapter > Olympia, WA > www.pianova.net <http://www.pianova.net> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100927/a0530b7d/attachment.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: 2007-RPT-Logo-Web.jpg Type: image/jpeg Size: 13287 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100927/a0530b7d/attachment.jpg>
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