v-bar/capo repair

[Barbara Richmond]

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
  ----- Original Message ----- 
  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 
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