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<DIV><FONT face=Arial size=2>Kevin:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Pscale has the original scale for a =
Yamaha GH1B and
also a Samick G150.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If you superimpose the graphs you see =
the
difference.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Yamaha has a 26 bass with 169 pounds =
and .11 % inh
at note 26, changing to 105 pounds and .315 inh at note =
27.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The Samick has a 30 bass with 164 =
pounds and .163
inh at note 30, changing to 142 pounds and .209 inh at note =
31.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The program includes a good number of =
original
scales that you can just click on and look at the curves. Very
dramatic.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>A rescale might convert the four to six =
notes above
the break to bichord wound strings.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Could that be an attempt to not make it =
toooooo
good and interfere with the sales of their better =
models?????</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Carl Meyer</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=ramsey@extremezone.com =
href="mailto:ramsey@extremezone.com">Kevin E.
Ramsey</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, May 18, 2001 7:23 =
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Scaling problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2> I've noticed =
something on some
newer pianos lately, and decided to ask the opinion of the sages on =
the list.
I've been encountering more and more pianos of late that seem to have =
a real
scaling problem in the low tenor section. Baldwin model 248 comes to =
mind; (
the last note in the tenor is C# I believe), but where I really see it =
is in
the new Yamaha model GA1, and to a lesser extent in the GH1. What is =
happening
is that the designers of these pianos have put too many notes in the =
tenor
that belong in the bass. As you play chromatically down the scale, =
these notes
start sounding like "pong-pong-pong" and then you hit the bass, and =
they sound
normal again.</FONT></DIV>
<DIV><FONT face=Arial size=2> I know that this =
is caused by
continuing to drop the tension on the strings in order to get the =
fundamental
down to the required frequency, but you reach a certain point, and you =
get a
tone that seems hollow and is very difficult to fit in with the rest =
of the
tuning.</FONT></DIV>
<DIV><FONT face=Arial size=2> I've had some =
partial success
with carefully doping the hammers, and voicing the bass down, plus =
leveling
strings, straightening termination points etc., but not to any totally =
satisfactory result. </FONT></DIV>
<DIV><FONT face=Arial size=2> Got any good =
advise? I'm all
ears. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> Or is it just poor =
design?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Kevin E. Ramsey<BR><A
href="mailto:ramsey@extremezone.com">ramsey@extremezone.com</A>
</FONT></DIV></BLOCKQUOTE></BODY></HTML>