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<DIV><FONT face=Georgia size=2>Thanks Don. I was =
thinking the
aftertouch was bit much even though the dip is where we like it and the =
blow is
1 3/4 inches. I would think increasing the blow distance would be the =
way to go.
A little more power without sacrificing repetition. It should give me =
more room
for checking distance too.</FONT></DIV>
<DIV><FONT face=Georgia size=2>Keith Roberts</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=donmannino@comcast.net =
href="mailto:donmannino@comcast.net">Donald
Mannino</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, March 07, 2004 =
8:28
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Mason & Hamlin =
upright</DIV>
<DIV><BR></DIV><FONT size=3>Keith,<BR><BR>I worked on one of those =
years ago -
my sister ended up buying it.<BR><BR>This action (from Wessel, Nicklel =
and
Gross, I believe, but I've only seen it on Mason & Hamlin) =
repeats
amazingly well. The only real drawbacks are a little extra force =
in the
key when the hammers are in check, the possibility of bobbling hammers =
if the
springs are set too strong or the aftertouch is too great, and when =
they are
working right a very soft blow will push the hammers forward against =
the
strings, preventing 'ghosting' the notes. Once the action was =
regulated
well I never had a problem with bobbling, but a piano teacher noticed =
that
when he played the notes silently, the hammers would block the strings =
spoiling a demonstration of harmonics he was trying to do for my
niece.<BR><BR>On the action I worked on the springs were very =
consistent, but
the felts were worn out. I replaced the felts with thin butt =
felts (if I
remember correctly!), matching the apparent thickness of the =
originals.
The amount of aftertouch in the action has a huge affect on the =
springs, and I
found minimal aftertouch was best. If the springs are unevenly =
bent on
the jacks, try to gently flex them to make a straight line when viewed =
from
the end of the action. I don't know exact measurements - as I =
recall,
the one I did had about 1/4" gap between the top of the spring and the =
jack -
but I haven't seen it in a long time, so I could be remembering
wrong.<BR><BR>A very affective design, in my opinion.<BR><BR>Don
Mannino<BR><BR>At 11:08 PM 3/6/2004, you wrote:<BR></FONT>
<BLOCKQUOTE class=cite cite type="cite"><FONT face=georgia =
size=3>I'm
working on one of those M&H uprights with those flat brass =
springs
between the jack and the hammer butt catcher. Is there an adjustment =
for
those? Some of them may have been bent out of shape on the reset =
when the
bridle straps were off. Most of the hammers show a wink at letoff =
but some
don't making it tough to determine the exact point of letoff. Also =
the
hammers want to check at 3/8 inch. Would that be the normal
setting?<BR>Thanks<BR>Keith
Roberts</FONT></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>