User Manual
13
CONTROLLERS (Continued)
NOISE/LFO SWITCH 
This switch to the bottom right side of the CONTROLLERS panel is used to choose the modulation 
source that will be assigned to the clockwise position of the MODULATION MIX knob. Normally, this 
switch would be set to NOISE, allowing the Noise Generator to be assigned as a modulation source. 
The NOISE switch located in the mixer selection determines what type of noise is used for modulation. 
When WHITE NOISE is selected, Pink Noise is actually the modulation source. When PINK NOISE is 
selected, Red Noise is actually the modulation source. In the LFO position, the additional LFO located 
on the Left-Hand Keyboard panel is used as a modulation source. This is ideal for pitch vibrato and 
trills when all three oscillators are in use.
TIP: The Noise position can also be used to introduce an external modulation source via the MOD. SRC. (Modulation 
Source) jack on the Top Patch Panel. Inserting a standard 1/4” TS cable into this jack breaks the normalled 
connection, and any external control voltage can be used as a modulation source. Additionally, if a TRS to TS insert 
cable is used, the Modulation Noise signal output is made available on the ring/send portion of the cable.
MODULATION MIX
This knob sets the balance between the modulation sources selected using the OSC.3/FILTER EG 
and NOISE/LFO switches. With the MODULATION MIX knob rotated fully counterclockwise, only the 
modulation source selected by the OSC.3/FILTER EG switch is applied. With the MODULATION MIX 
knob rotated fully clockwise, only the modulation source selected by the NOISE/LFO switch is applied. 
In the center position, both selected modulation sources are applied equally.
LEFT-HAND KEYBOARD PANEL
LFO RATE
Located on the Left-Hand Keyboard panel, the LFO RATE knob sets the speed 
for the dedicated LFO (Low Frequency Oscillator) modulation source that has 
been added to the Minimoog Model D. Normally, the LFO uses a Triangle wave; 
pulling up slightly on the LFO RATE knob will switch the LFO to a Square wave.
MOD WHEEL
The MODULATION Wheel provides a real-time performance controller that 
can apply the modulation sources selected using the OSC.3/FILTER EG and 
NOISE/LFO switches, using the mix determined by the MODULATION MIX 
knob. The Oscillator Modulation switch between the CONTROLLERS panel 
and the OSCILLATOR BANK must be in the ON position to apply modulation 
to the Oscillator pitch. The FILTER MODULATION switch connecting the CONTROLLER panel and the 
Filter must be in the ON position to apply modulation to the Filter Cutoff Frequency. The zero position 
for the Mod Wheel is all the way down, with the indent in the wheel closest to you.
NOTE: The MODULATION Wheel does not transmit or receive MIDI data due to its traditional passive 
attenuator design.
PITCH WHEEL
Located next to the MODULATION Wheel, the PITCH Wheel provides a real-time performance 
controller for bending the pitch of the Oscillators, in the way that a guitarist may bend a string or a sax 
player may bend the reed to alter the pitch of a note. The zero position for the PITCH Wheel is in the 
center, allowing the pitch to be bent either sharp or at.
NOTE: The PITCH Wheel on the Minimoog Model D does not have a spring-loaded return, but does have 
a center-detent. 










