Pianotech

  • 1.  Mason & Risch strings

    Registered Piano Technician
    Posted 09-02-2018 15:28
    There is an extra bichord on the tenor bridge at the break of the Mason & Risch upright.  No hammer strikes it, but it lies between C and C#.  What could be the purpose of the string and what should I do to service it?


    Jonathan Langham


  • 2.  RE: Mason & Risch strings

    Registered Piano Technician
    Posted 09-02-2018 15:45
    Jonathan,

    Do you have a photo? Serial number?

    Paul.

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    Paul Brown, RPT
    President
    Piano Technicians Guild
    Vancouver, BC Canada
    Email: pres@ptg.org
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    Original Message


  • 3.  RE: Mason & Risch strings

    Posted 09-02-2018 15:47
    I wonder if it's the Conover auxiliary vibrator. See my other post. And see Daniel Spillane.



    Original Message


  • 4.  RE: Mason & Risch strings

    Registered Piano Technician
    Posted 09-04-2018 05:53
    I've seen this on Mason & Risch uprights and if I remember correctly the strings are permanently damped.
    They were probably trying to improve the break by reducing the "end of bridge effect ".  I believe Del Fandrich has written about this in the Journal.
    As long as the strings are singing tight I would just leave them be.

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    Ken Kopp
    Campbell River BC
    250-286-6967
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    Original Message