High treble string breakage

Newton Hunt nhunt@gandalf.rutgers.edu
Wed, 06 Sep 1995 21:27:56 -0400 (EDT)


I have 8 KG-2C, 4 Howard (same scale), 10 UST-7 and 1 GS-50.
The 50 was recently restrung.  I evaluated the scale since I was not happy
with the bass.  I found that in several places, especially in the bass and in
the treble that the tension exceeded 70% breaking point.  Overall the scale
has too high tension and too low inharmonicity.  Considering that the KG-2Cs
consistantly break more strings that all the other 100+ pianos combined, no
exaduration, I lept the to unconfirmed conclusion that they too had too high
tension in the treble.

On the GS-50 I lowered string size to bring tension down and completely
redesigned the bass for higher inharmonicity and lower tension.  Result is a
really nice sounding piano.  Additionally we CA glued the bridge pins in,
reset bearing, Bondo-ed block to plate and securely glued block to rasten and
rim,  regulated the action (original hammers) and put into a performance and
class area for daily use.  So far so good.  There is an S&S B in the same
room.  The B is louder but the GS has a much deeper bass with stronger first
partials.

Now if I can only get Ray here to look at it I will be completely happy.

      Newton
      nhunt@gandalf.rutgers.edu
      Rutgers the state university of New Jersey




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