This is a multipart message in MIME format ---------------------- multipart/alternative attachment But the wound strings in the tenor sounds like something this= fellow can handle with ease and make a big improvement...i.e.= without having to send it to you...;-] David Ilvedson Original message From: Terry To: Pianotech Received: Fri, 25 Feb 2005 21:07:29 -0500 Subject: Re: Rescaling GH1 tenor section Joe Garrett wrote: I did exactly that, back in the late 70's, (at the request of= Yamaha, I might add.<G>). It is definately the way to go. You= will need to change the plain wire to wound on the tenor bridge.= It's been a while since I've done one of these, (I've done= several, al with excellent results!) As I recall, the first 6= notes on the long bridge need to be wound. I still have the= scale data, somewhere in my 'puter cobwebs, but I'd have to= search for it. It is not necessary to modify the bridge in any way. just use the= outside bridge pins of each note, leaving the center blank. Well yes, that is one way to go - and one that will definately= yield improvement - but not necessarily the approach that yields= the most improvement. Also, the same for the tuning pins. As I recall, I left the= "blank" tuning pin in place, so that it had a nice appearance.= You will have to add som hitch pins. As I sent all of my= schematics/blueprints to Yamaha, I don't have a copy of the= hitch pin pattern. It's fairly easy to figure out where they= need to be added. It is suggested that you add the hitch pins= BEFORE ordering the strings, so that all dimensions of tails,= winding start/finish, will be correct. You may be able to get all this info, plus the exact strings,= from Yamaha, but I don't know wether they consider this an= "antique" piano and would want to be bothered. They do have all= of the information, as I presented it, hopefully. After all they= did pay me to do the research on it.<G> Since that time they= used the info on their next version of the GH-1 and then for= some darned reason, changed it two more times, (not for the= better, either, IMHO)! One big caution: The original GH-1 had little or not support= beams, so the piano is really squirrely! Remove only the= absolute minimum strings to access the area for hitch pins etc.!= It will go 20+ cents sharp when you do this! Not to worry. Once= you have the new strings on and tuned, the darned thing will go= right back to pitch, (pre-work pitch)! Go figger.<G> Once the work is done, you'll probably have to correct the= "voicing" that was previously, (and to no avail), done, in that= section. Once that is taken care of, you'll love how nice that= "transition" can be, for a small piano. Hmmmm, you'd likely notice a significant improvement in the= transtion, but to experience "how nice" a transition can be,= you'd want to consider adding a transition bridge - or more! Terry Farrell ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/8a/9b/0b/1b/attachment.htm ---------------------- multipart/alternative attachment--
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