Also check to see that the hitch pin end of the string is not slipping due to a loose twist. I had this happen once on a new string. Mark the string with a felt pen and watch to see if there is a change making the string longer under tension. Mike Kurta ----- Original Message ----- From: Tom Gorley To: pianotech at ptg.org Cc: noahfrere at gmail.com Sent: Thursday, December 06, 2012 1:35 AM Subject: Re: [pianotech] Won't stay in tune Noah, check that the becket is not pulling out. If the string is not inserted all the way thru the Tuning-pin hole it will withdraw under tension. Tom Gorley Registered Piano Technician (650) 948-9522 On Dec 5, 2012, at 1:15 PM, pianotech-request at ptg.org wrote: Message: 2 Date: Wed, 5 Dec 2012 16:15:37 -0500 From: Noah Frere <noahfrere at gmail.com> To: pianotech at ptg.org Subject: [pianotech] Won't Stay in Tune Message-ID: <CABKkihoKiQ4d+ocUwbt92Gd6=ADjkWrrqaU4JR2kW4g2MMt3Tg at mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" I just restrung a 1908 Whitney 3/4 plate tall Upright, with new bridge pins epoxied in using a syringe, ad 4/0 tuning pins. The pins are tight. I repeat, the middle string on F#6 has a TIGHT tuning pin, tight bridge pins, and a tight hitch pin. The string wraps around and comes up the right side as the right string. Sounds good, right? No - that note (and the center string of A#7) will not stay in tune for even 4 seconds! You can just hear it drop as you strike the string, like a miracle (or the opposite thereof.) The other notes, including the outside strings of F#6 and A#7 are fine. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20121206/6511f798/attachment.htm>
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