Hammond SK Pro-73 73-Key Portable Keyboard/Organ - Manual (Page 122)

*#1 SK PRO/SK PRO-73 Owner’s Manual
122
CUSTOM TONE WHEELS - continued
LEAKAGE WHEEL
LEAK WH (TW)
Th is allows you to add a Leakage Tone to any of the Wheels from “01:0C” to “72:6B”
(“Fundamental Wheels”) by using the “Leakage Wheels” (“61:6C” through “91:8F -
see the illustration on the right).
Th
e Leakage Wheel will sound along with the Fundamental Wheel .
Th ere are two ways to select a Leakage Wheel:
1. Use the [VALUE] knob, or,
2. If you want to locate a certain Leakage Wheel quickly, move the Drawbar slightly
while depressing the key you want to regulate (see the illustration on the right).
LEVEL (TW)
Setting Range: -Inf (OFF), -92.0 ~ +4.0 [dB]
Th is allows you to adjust the Volume of the selected Leakage Wheel.
NOTE: The overall volume of the selected Wheel may decrease as the Leakage Volume is
increased.
MATRIX LEVEL
FOOTAGE (TW)
Setting Range: 16, 5-1/3, 8, 4, 2-2/3, 2, 1-3/5, 1-1/3, 1, Perc 2nd, Perc 3rd
NOTE (TW)
Setting Range: 1C ~ 6C
Th is allows you to select Matrix to adjust the level of each Drawbar and each note.
LEVEL (TW)
Setting Range: -Inf, -92.0 ~ +4.0 [dB]
Th is allows you to adjust the level of the Matrix selected above.
Frequency
Level
100Hz 1kHz 10kHz
Fundamental tone
Leakage tone
WHAT IS “LEAKAGE?”
On a tone-wheel Hammond Organ, each tone
wheel rotates next to a magnet, making a total of
91 or 96 magnets. The tone wheels are mounted
in separate bins to isolate them from each other
and prevent the magnets from intercepting
frequencies from neighboring wheels; however, a
small amount of current may still “leak” through,
producing a phenomenon called Leak age.
Leakage is usually heard as a “hash” type sound
consisting of many frequencies sounding at once.
The phenomenon can be thought of as similar to
white noise but with somewhat more definition,
with individual pitches more discernable. A
properly calibrated B-3/C-3 will have a minimum
of this eff ect;
However, an instrument which has been subjected
to hard use over a period of time may exhibit more
leakage noise.
NOTE: The Parameters labeled ( T W ) are
Tone Wheel Parameters. You must
Record these Parameters to a Custom
Tone Wheel if you want their settings
to be remembered the next time the
instrument is turned “ON.” See page
128 for instructions on how to do this.
Selecting a WHEEL NUMBER to edit