5
TurboSlide Harp
– User Guide, page
VER. 11.02.11, ©AntakaMatics, Inc. 2011
The Chromatic harmonica offers additional possibilities by providing additional reeds in each of
the sound holes. A valved plate is typically needed to toggle between the natural note and a
sharped note. Again, this provides a sudden transition of pitch, precluding a gradual transition
and hence limiting the expression of the player.
HOW IT WORKS
The
TurboSlide
represents a NEW generation of harmonica, somewhat adopting the
characteristics of both the Diatonic and Chromatic harp. The physical principle of its operation
is shown schematically below:
N
S
FORCE
δ
δ
R
E
S
T
ORING FORC
E
Fo
rc
e
du
e
to
e
la
st
ici
ty
o
f r
ee
d
MAGNETIC
FIELD
MAGNET
DISPLACEMENT OF REED
magn
et forc
e
To
ta
l F
or
ce
The
TurboSlide
employs a permanent magnet adjacent to the reed to alter its stiffness. From
the diagram you can see that the relationship of force to displacement which is normally a
straight line becomes more shallow when the magnetic force is added to it. Lower stiffness
means lower pitch.
REED
PLATE
REED
