Clavia Nord Electro 2 User Manual page 52

9. History: The story behind the Electro 2 instruments
On the left-hand side of both manuals, Hammond tone wheel or-
gans have one octave of reverse-colored keys. These don't trigger
notes; instead, they call up preset drawbar settings. All tone wheel
Hammonds have double manuals.
What you see here isn't an original component on a Hammond or-
gan; it's an add-on. It's the controller switch for the Leslie rotat-
ing speaker cabinet. Slow rotation speed is called Chorale, and
fast speed is called Tremolo. In the Nord Electro 2, the Leslie
speaker effect is simulated with this kind of controller. Its posi-
This is the inside of the famous Vi-
brato and Chorus scanner. It was
designed by John Hanert, Ham-
mond's #1 engineer. Hanert was the
designer of many patented compo-
nents in Hammond tone wheel or-
gans. The scanner was attached to
the drive shaft that all of the tone
wheels were fit upon, just behind the
A close-up view of the main
60Hz motor. The vibrato scan-
ner is mounted on the left side.
Page 52
The draw-
The main motor
The vibrato/
chorus scan-
The tone wheel
assembly box
The spring re-
The speak-
The tube amplifier
for the speakers
This is the inside of the drawbars.
Underneath, you can vaguely see
some of the coils for the magnetic
pick-ups.
NORD ELECTRO 2 V3.0x
The matching transform-
The tube amplifier The start mo-
for the organ
A close-up picture of the speaker
tube amplifiers.