Jeannie: Sorry, I responded to you as if you were Barbara inquiring about a temporary set up. To hold them in place you can pin them by drilling a hole through the brass and into the plate every so often and insert a bridge pin. Attached is a photo of a Knabe tenor section and if you look real close you can see the bridge pins sunk into the plate through the brass (half ovals in this case). David Love davidlovepianos at comcast.net -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Jeannie Grassi Sent: Thursday, March 09, 2006 7:53 PM To: 'Pianotech List' Subject: RE: v-bar/capo repair I had a problem keep a length of brass half round in place. I'm interested in knowing what people use to make sure it doesn't move. It was a longer piece that extended the entire treble area. It was a slippery little thing that moved when the tension was brought up to pitch. jeannie Jeannie Grassi, RPT Registered Piano Technician Island Piano Service Bainbridge Island, WA 206-842-3721 mailto:jcgrassi at earthlink.net ---------------------------------------------------------------------------- ---- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Barbara Richmond Sent: Thursday, March 09, 2006 1:40 PM To: Pianotech List Subject: Re: v-bar/capo repair Hi David, When experimenting duplex length with brass half or oval round, would you, in this case, place anything on the bottom of the brass to avoid scratching the plate? Or isn't it a problem? Thanks, Barbara Richmond From: David Love To: 'Pianotech List' Sent: Tuesday, February 28, 2006 10:25 PM Subject: RE: v-bar/capo repair Like Ron N. says, I think it's likely it has to do with the front duplex and you may be able to shorten, detune and increase the deflection angle by inserting some brass of appropriate dimension-at least you can experiment. If it turns out that that's the problem, it's not that big a deal to remove the strings from one section and insert the new counterbearing piece and then replace the strings (the same ones you took off). Unhook them from the tuning pins slip in the brass or whatever and then reattach-if that proves to be the problem. I get brass of varying sizes from www.rjleahy.com. They will cut to a reasonable shipping size. I don't know the configuration of this piano but maybe you can send pictures and some suggestions could be made by various people, I'm sure. If the noise disappeared originally by muting the front duplex, it is likely that there is leakage occurring and that's what you should address. Shortening the section and increasing the deflection can do that. You do want to be sure that the angle and deflection work together. The longer the duplex the greater the deflection angle. Similarly, a shorter duplex requires smaller angle. David Love davidlovepianos at comcast.net -------------- next part -------------- A non-text attachment was scrubbed... Name: P1010003.JPG Type: image/jpeg Size: 77003 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/20060310/fac30eab/attachment-0001.jpe
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