Erica Synths ERICA FUSION VCO2 User manual

SUB OUT1V/OCT PWM IN SYNC IN TRI OUT OUT
AUDIO IN FM IN +1 OCT
-1 OCT
COLOUR PLS OUTWAVE
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FUSION VCO2
This is the main
output of the VCO
This is dedicated
suboscillator
output
THANK YOU FOR ORDERING
ERICA FUSION VCO2!
The Erica Synths Fusion series modules
are designed combining vacuum
tubes and semiconductors therefore
they bring warm, powerful sound and
overdrive possibilities of vacuum tubes
into your modular system. Erica Fusion
series consist of range of modules
used in sound shaping circuit – VCO,
Mixer, real Ringmodulator using
audio transformers and germanium
diode ring, VCF, VCA, Analogue Delay/
Flanger, Palsma Drive and others. Also
Erica Fusion System is available.
Fusion VCO2 is full analogue sound
source with lots of distinct features.
The core of the module is highly
stable AS3340-based VCO with three
simultaneously available waveforms,
transistor-based suboscillator and
detune function – two BBD delay lines
that make frequency shifter that is
mixed back to the principal oscillator
in order to emulate two detuned
VCOs. Tube crunch – distinct tube
overdrive - is added on the top of the
mix. Furthermore, Audio input mixes an
external audio signal with the principal
oscillator which results in crazy sonic
experience. Fusion VCO2 is exactly what
you need, if you wish to go really low
frequencies and have a sound that sets
your modular system apart
from mass!
This is octave switch
– depending on the
setting it will transpose
the VCO one octave up
or one octave down
This is logarithmic FM
CV input. Adjust the
attenuator for desired
FM level
This is an external
audio input. It mixes
the external audio
signal with the oscillator
and the suboscillator
and feeds it into tube
overdrive circuit
This is manual tune
knob – it will adjust tune
of the VCO
over 2 octaves
This is FM attenuator
– adjust it to achieve
anything from nice
vibrato to extreme FM
madness
Adjust pulse width
manually! PWM
CV is added to the
potentiometer setting
Detune emulates two
detuned VCOs. Two BBD
delay lines that make
frequency shifter that is
mixed back to the principal
oscillator. Turning the
knob CW increases detune
amount and the internal
LFO frequency and in
extreme CW setting you get
crazy frequency beats
Adjust the transistor based
suboscillator level! Full CW
setting will provide max
suboscillator presence
The resulting signal
of the VCO+suboscillator
+frequency shifter
is passed through two tube
overdrive circuits for ultimate
crunchiness of the sound
This is the
suboscillator Colour
switch – essentially
lowpass filter. Select
the suboscillator
timbre to your taste
Select the waveform of the
VCO that is assigned to the
main output
This is dedicated Pulse
wave output
This is dedicated
Triangle wave
output
This is 1V/oct input.
The VCO tracks great
over 8 octaves and
more This is Sync input.
Besides regular VCO
synchronization, we
implemented unique
suboscillator sync
circuit
This is Pulse Width
Modulation CV input.
The CV is added to
the Pulse Width knob
ERICA FUSION VCO2

SAFETY INSTRUCTIONS
DISPOSAL
Please follow the instructions for use of this Erica Synths module
below, ‘cause only this will guarantee proper operation of the
module and ensure warranty from Erica Synths.
Water is lethal for most of the electric devices, unless they
are made waterproof. Erica Synths module is NOT intended
for use in a humid or wet environment. No liquids or other
conducting substances must get into the module. Should this
happen, the module should be disconnected from mains power
immediately, dried, examined and cleaned by a qualified
technician.
Do not expose the module to temperatures above +50° C or
below -20° C.
Transport the instrument with modules installed carefully, never
let it drop or fall over. Warranty does not apply to modules with
visual damages.
The module has to be shipped in the original packaging only.
Any module shipped to us for return, exchange and/or warranty
repair has to be in its original packaging. All other deliveries
will be rejected and returned to you. Make sure you keep the
original packaging and technical documentation.
You will find Erica Synths terms of warranty at
http://ericasynths.lv/en/terms/
Items for return, exchange and/or warranty repair have to be sent
to: Erica Synths, Andrejostas Str. 43, Riga, Latvia, LV-1045
This device complies to the EU guidelines and is manufactured
RoHS conforming without use of lead, mercury, cadmium and
chrome. Nevertheless, this device is special waste and disposal in
household waste is not recommended.
Designed and made in Latvia.
User manual by Girts Ozolins@Erica Synths.
Design by Edmunds Pavlovskis.
Copying, distribution or any commercial use in any way is
prohibited and needs the written permission by Erica Synths.
Specifications are subject to change without notice.
In case of any questions feel free to contact us via
e-mail: [email protected]
Check out other Erica Synths modules & devices at
www.ericasynths.lv
TECHNICAL SPECIFICATIONS:
Audio input level.................................................................10Vptp
Audio output level............................................................... 10Vptp
VCO range.........................................................C0-C8 and more
PWM CV range (full span).............................................-5V - +5V
Panel width.............................................................................. 14HP
Module depth.........................................................................42mm
Power consumption…………................228mA@+12V, 55mA@-12V
FEATURES:
Full analogue design
Great tracking over 8 octave range
Detune function for thickening the sound
-1oct transistor based suboscillator
Tube overdrive circuit
External audio input
VCO synchronization
Simultaneous waveform outputs
ERICA FUSION VCO2