Hammond Skx PRO Reference Manual page 227

ORGAN Voice Section
207
The figure below shows how the Drawbars are allocated for the Vx Organ Type.
The type of combo organ replicated by Vx had drawbar-type controls, but they functioned differently
from Hammond Harmonic Drawbars. The first four Drawbars control individual pitches, while the
next three are "Mixture" Drawbars which cause multiple pitches to sound. "II," "III" and "IV" refer
to the number of pitches represented by that Drawbar.
The last two Drawbars control the type of tone produced by the first seven Drawbars. The eighth
Drawbar causes pure tones to sound while the last Drawbar causes brighter and more harmonically
complex tones to sound.
NOTE: The first seven Drawbars WILL NOT sound unless one or both of the last two Drawbars are also
"out." These two Drawbars regulate the overall volume as well as timbre of the total Drawbar registration,
and can be used separately or together.
NOTE: The colors shown in the above figure are the ones shown in the Information Center Display when
the Vx Organ Type is selected.
NOTE: The Drawbar allocations shown above are identical for the UPPER and LOWER Parts.
NOTE: The PEDAL tones will automatically play the Muted voicing for the TONE WHEEL Organ Type.
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SKX PRO Reference Guide