Operation Manual

Setting Up
47
TONE-WHEEL SET
The Tone-wheel Sets are divided into the
Manuals and the Pedal Part. This is to give
the Pedal Part the Decay (= the sound gradu-
ally fading out while pressing the key) or Sus-
tain Effect. (= the sound gradually fading out
after the key is released).
The details are on the next pages.
The functions introduced here will be explained
in detail from the next page.
HARMONICS
Harmonic is a pitch of a different ratio to a cer-
tain pitch; for example, the one octave higher
C to the middle C. The more Harmonics, the
brighter and richer sound is obtained.
See the illustrated System Structure of your organ on the left page.
TONE-WHEELS
The sound source or “engine” of Hammond Organ is the Virtual Tone-wheel. Generator.
As on the original B-3, each of the 96 Virtual Tone-wheels are oscillating at a different
pitch. There are NO moving parts inside this organ.
KEYS
The tones of the 96 Virtual Tone-wheels are switched at the keyboard with the “Direct
Analog Keying System” exactly as on the original B-3. There are 9 contacts at each key
responding to each of the 9 Drawbars. When you press a key, the contacts are made to play
the corresponding Drawbars to the pitch of the key depressed.
DRAWBARS
The Drawbars represent simple harmonics. Each bar adjusts the value of each harmonic.
The combinations of different harmonics create a more complex sound.
PERCUSSION
The Percussion adds a voice with clear attack to the Swell manual. This effect is an essen-
tial part of the Hammond Sound.
VIBRATO AND CHORUS
The classic Hammond “Chorus-Vibrato” gives depth and richness to the organ sound by
slightly varying the pitch (Vibrato) or doubling the voice, just slightly out of tune (Cho-
rus). This effect is a hallmark of the vintage B-3 sound.
NOTE: On this organ the mechanical scanner of the original B-3 is simulated, with no moving
parts.
TUBE PRE-AMPLIFIER
A real tube in the pre-amplifier gives this organ the “vintage” sound. By changing the
amount of the drive, you can obtain various tube sound from “clean” (no clipping), to the
hard-distorted fuzzy and raspy “overdrive” popular in rock music.
The Pedal Part is designed not to pass through the tube pre-amp in order to obtain a clear
Bass-Pedal tone.
EFFECTS
The built-in Effects are as follows: an Equalizer for controlling the tonal quality, a Leslie
Effect for giving rotary speaker effects, a Reverb (for giving reverbration), a Tube Buffer
for adding tube “warmth”. (The built-in Leslie Effect does not appear in the signal of the
Leslie 11-pin terminal.)
EFFECT LOOP
The External Effect Loop is located post-internal Effects.