A Metalic Buzz

[robert sadowski]

Terry,
    Make sure that you have side bearing on those notes.  I recently had a
similar experience with an upright.  One note confounded me until I checked
and noticed that one string was not quite touching its respective bridge pin
at the exit point.

Happy holidays,
Bob Sadowski
Erie, PA.

-----Original Message-----
From: Terry Beckingham <Terry_Beckingham@mbnet.mb.ca>
To: pianotech@ptg.org <pianotech@ptg.org>
Date: Monday, December 22, 1997 1:51 AM
Subject: A Metalic Buzz


>Hi All,
>
>I have a problem that I hope someone out there can help me with. I have
just
>finished restringing a Sherlock-Manning upright (1916) and got it back up
to
>pitch. There is a strange metalic buzzing when any of the notes from A0 to
>G1 are played. I have checked for loose parts, checked between the plate
and
>soundboard for pieces of foreign matter,etc. The ends of the whippens
aren't
>contacting the strings. There is downbearing on the bass bridge, strings
>have been tapped down at all of the bearing points, etc.
>
>I have removed the offending strings and put an additional twist in them
>with no improvement. I am at a loss as to what is causing the buzz. It is
>loudest near the bass bridge. The bridge is solidly attached to the
>soundboard. The bridge cap was separating near the lower end and was
reglued
>with epoxy and clamped until the glue set.  Soundboard cracks were repaired
>with shims and was re-glued where the ribs had separated.
>
>Any suggestions as to what would be causing the buzz will be greatly
>appreciated. Thanks in advance.
>
>Merry Christmas to all
>
>Terry
>
>
>