LFO Waveform Switch
The LFO waveform is selectable between triangle (" ") and squarewave (" ") " " will provide a
continously up-and down gliding pitch, while " " makes the oscillator shifting between two
tones
Envelope Follower/Sample+Hold/ext. CV Modulation Depth Control
The internal envelope follower converts the volume of the audio signal on the instrument input
into a control voltage, which then is used for modulating the oscillator frequency
Switch
S+H'
in upper
position
The preamplified
audio signal
The generated
envelope signal for
frequency
modulation
With switch 'S+H' in upper position, the amount of the envelope modulation is adjustable by
this knob ( Or alternatively, the amount of Sample+Hold modulation can be adjusted, depending
on the position of switch 'S+H'; please read the refering point )
If the external frequency CV (= Control Voltage) input is used, the internal envelope follower
will be switched off and replaced by the signal applied on - e g from a pedal (or the respective
S+H modulation)
Envelope Follower/Sample+Hold/ext. CV Modulation Inversion Switch
Switches the modulation polarity (from the envelope follower, Sample+Hold or an external source
on ) from positive to negative If the switch is in upper position, the pitch of the AM oscillator
will increase with higher voltage of the modulation signal With the switch in lower position 'Inv'
(="Inversion") the pitch will decrease with higher input voltage The inversion switch works also for
a control voltage signal connected to
External Frequency Control Input
Allows to control the oscillator pitch by an external control voltage (CV) or an external resistor By
connecting a jack to this input, the internal envelope follower/S+H will be shut off and instead the
applied control voltage will modulate the oscillator's frequency (with switch 'S+H' in upper
position); the modulation depth can be adjusted by knob ; the modulation CV's polarity can be
inverted by switch
Further, a +5V DC voltage (via 10kΩ resistor) is provided on , available on the middle connector
of a 3pole jack plugged in Thus may
be useful, for example, in combination
with a sensor or a pedal In the latter
case, a common passive foot pedal with
3pole jack should work
5
