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CUSTOM SETS - Tone Wheel
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CUSTOM EDIT -TONE WHEEL FUNCTION Mode
This FUNCTION Mode allows you to select from among a library of different Tone Wheel settings so that
each of the TONE WHEEL Organ Types will have the sound you want, as well as create your own Custom
Tone Wheels.
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What Are “Tone Wheels?”
Tone Wheels (or “phonic wheels”) are the method by which vintage Hammond Organs generate tone.
Each individual frequency is generated by a steel disk 1 7/8" in diameter and containing a number of high
and low points called teeth on its outer edge. (See the illustration below.) These disks are the Tone
Wheels. The most common tone-wheel generator has a total of 96 tone wheels. In order to generate all
the different frequencies, the tone wheels have different numbers of teeth - some wheels have 2 teeth,
others have 4 teeth, others have 8, 16, 32, 64, 128, up to 192 teeth. On a B-3-type organ, only 91 of the
96 wheels generate musical notes - five of the wheels are blanks, or wheels having no teeth, to maintain
balance. On later Hammond models such as the H-100 and X-77-series, the last 5 tone wheels are cut with
256 teeth, allowing them to play frequencies 92 through 96.
Notice in the drawing above that the tone wheels are placed so that they rotate next to magnetized rods. Each
rod has a small coil of wire wrapped around one end. The tip of the magnet at the coil end is ground to a sharp
edge and mounted near the edge of the tone wheel. Each tone wheel producing a note has a magnet associated
with it.
Notice also that the tone wheels are geared together. A constant-speed motor drives the gears which in turn
cause the tone wheels to rotate. As the wheels rotate they do not touch the magnets, but pass very close
to them. Each time a high spot passes the magnet, it generates a very small electrical current in the coil.
The number of high spots or teeth passing the magnet each second determines the musical note produced.
If, for example, 440 teeth pass the magnet each second, 440 electrical impulses will be generated which,
when converted into sound with a speaker, will sound the note, “A-440.”
After going through a number of other processes, the electrical impulses finally reach the amplifier, which
strengthens them enough to drive a speaker system, which in turn converts the electrical signal into audible
tone. It is this audible tone which is heard as the “Hammond Sound.”
HA<O>
SKX PRO Reference Guide
Summary of Contents for Skx PRO
Page 1: ...REFERENCE GUIDE...
Page 2: ......
Page 4: ......
Page 5: ...TABLE OF CONTENTS...
Page 21: ...INTRODUCTION...
Page 37: ...INFORMATION CENTER DISPLAY...
Page 61: ...ALLOCATING VOICE SECTIONS...
Page 71: ...COMBINATIONS PATCHES BUNDLES FAVORITES...
Page 162: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 163: ...ORGAN VOICE SECTION...
Page 245: ...UPPER PERCUSSION...
Page 253: ...PIANO ENSEMBLE VOICE SECTIONS...
Page 340: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 341: ...MONO SYNTH VOICE SECTION...
Page 403: ...CUSTOM SETS...
Page 476: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 477: ...MULTI EFFECTS OVERDRIVE EQUALIZER...
Page 573: ...SPECIAL PERFORMANCE FEATURES...
Page 608: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 609: ...MIDI incl INT EXT ZONES...
Page 616: ...596 MIDI MIDI Templates SKX PRO HA O SKX PRO Reference Guide...
Page 654: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 655: ...SPECIAL UTILITY FEATURES...
Page 685: ...665 Special Utility Features t SYSTEM PARAMETER LIST HA O SKX PRO Reference Guide...
Page 686: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 687: ...USING MEMORY...
Page 720: ...THIS PAGE INTENTIONALLY LEFT BLANK TO PRESERVE PAGE FORMATTING...
Page 721: ...APPENDIX...
Page 722: ...702 Appendix APPENDIX u FACTORY COMBINATIONS HA O SKX PRO Reference Guide...
Page 723: ...703 Appendix u COMBINATION PARAMETERS HA O SKX PRO Reference Guide...
Page 724: ...704 Appendix HA O SKX PRO Reference Guide...
Page 725: ...705 Appendix u ORGAN PATCHES HA O SKX PRO Reference Guide...
Page 726: ...706 Appendix u ORGAN PATCH PARAMETERS HA O SKX PRO Reference Guide...
Page 727: ...707 Appendix HA O SKX PRO Reference Guide...
Page 728: ...708 Appendix u PIANO ENSEMBLE PATCHES HA O SKX PRO Reference Guide...
Page 729: ...709 Appendix HA O SKX PRO Reference Guide...
Page 730: ...710 Appendix HA O SKX PRO Reference Guide...
Page 731: ...711 Appendix u PIANO ENSEMBLE PATCH PARAMETERS HA O SKX PRO Reference Guide...
Page 732: ...712 Appendix HA O SKX PRO Reference Guide...
Page 733: ...713 Appendix u PIANO ENSEMBLE WAVEFORM LIST HA O SKX PRO Reference Guide...
Page 734: ...714 Appendix u MONO SYNTH PATCHES HA O SKX PRO Reference Guide...
Page 735: ...715 Appendix u MONO SYNTH PATCH PARAMETERS HA O SKX PRO Reference Guide...
Page 736: ...716 Appendix u PIPE ORGAN STOPS u ProChord VOICINGS HA O SKX PRO Reference Guide...
Page 739: ...719 Appendix u CUSTOM SETS HA O SKX PRO Reference Guide...
Page 741: ...721 Appendix u CUSTOM LESLIE PARAMETERS HA O SKX PRO Reference Guide...
Page 742: ...722 Appendix u SYSTEM PARAMETERS HA O SKX PRO Reference Guide...
Page 743: ...723 Appendix FAVORITES HA O SKX PRO Reference Guide...
Page 744: ...724 Appendix u MIDI TEMPLATES HA O SKX PRO Reference Guide...
Page 745: ...725 Appendix HA O SKX PRO Reference Guide...
Page 746: ...726 Appendix u MIDI INFORMATION HA O SKX PRO Reference Guide...
Page 747: ...727 Appendix u MIDI IMPLEMENTATION CHART HA O SKX PRO Reference Guide...
Page 748: ...728 Appendix u MIDI CHANNELS AND MESSAGES HA O SKX PRO Reference Guide...
Page 752: ...732 Appendix u DRAWBAR DATA LIST u SYSTEM EXCLUSIVE MESSAGES HA O SKX PRO Reference Guide...
Page 754: ...2023 Hammond Suzuki USA Inc HA O SKX PRO Reference Guide FM2333 0423...