v-bar/capo repair

[Jeannie Grassi]

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> 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

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

From: David <mailto:davidlovepianos at comcast.net>  Love 

To: 'Pianotech List' <mailto:pianotech at ptg.org>  

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
<http://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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