Upright let-off jig

J. R. White jrwhiteltd@msn.com
Thu, 12 Jan 2006 21:09:28 -0800


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Thank you for the idea.

Another idea that might work is these new flexible magnetic strips that =
one
can find in most hardware stores.  They=92re about an eighth of an inch =
thick.
Just stick them to the strings at the hammer-strike points.  Then, =
regulate
the let-off so that the hammers just press lightly on the magnetic =
strip.

I=92ve found that this works even in the bass section.  These magnetic =
strips
can be cut to whatever length you like.

J R W

=20

  _____ =20

From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On =
Behalf
Of Piannaman@aol.com
Sent: Thursday, January 12, 2006 8:26 PM
To: pianotech@ptg.org
Subject: Upright let-off jig

=20

I'm sure someone's thought of this before, so forgive me if my idea is
unoriginal!

=20

For those of you who use Bill Spurlock's grand letoff jig, this should =
sound
familiar.  Every upright has a built in let-off jig:  the hammer rail.
Today I was playing with a Hallet-Davis (Pearl River version) that's =
about 3
years old.  It needed let-off regulation in a bad way, so I experimented
with the hammer rest rail.  On this particular piano, I could push it =
far
enough forward so the hammers were close to the strings, even ON the
strings.  Some pianos won't allow for that much movement, but this one =
did.


=20

I set a some samples for letoff, then pushed the rail forward to the =
point
where those hammers would wink when I depressed the key.  I blocked the =
rail
so it stayed there, then adjusted the let-off to make the hammers wink.
Worked like a charm. =20

=20

Pianos that won't allow for such free motion of the hammer rail may =
require
something to clamp onto the rail for the shanks to rest on--the Spurlock =
jig
comes immediately to mind.

=20

Hope this helps someone in some small way!

=20

Dave Stahl

Dave Stahl Piano Service
650-224-3560
http://dstahlpiano.net/ <http://www.dstahlpiano.net/>=20


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