Erica Synths BLACK VCO Manual

THANK YOU FOR PURCHASING ERICA
SYNTHS BLACK SERIES MODULE!
Erica Black Series include high-end, unique
functionality and superior quality modules.
Only the best, highest quality components
are used, all inputs and outputs are
protected against undesired overvoltage.
Erica Black series consist of range of
modules that are needed to put together
entire synth. Enjoy!
Erica Black VCO is analogue VCO with four
simultaneous waveform outputs and one
octave down suboscillator. The core of the
VCO is borrowed from famous Russian synth
Polivoks VCO and in exponential converter
we use the original matched transistor IC
that was used in Polivoks. Unlike harsh logic
divider based suboscillators, Black VCO
transistor-based suboscillator generates
distinct, rounded squarewave. Together with
Black VCO Expander – waveform mixer you
get massive analogue sound source with
plenty of patch points for modular use.
FEATURES:
Simultaneous sine, triangle, saw and pulse
wave outputs
-1 octave suboscillator
Manually adjustable and CV controlled
pulse width
Great tracking across 8 octaves
Exponential FM input with attenuator
Synchronization input
Octave switch – 5 octaves
Skiff-friendly design
TECHNICAL SPECIFICATIONS:
CV level ............................................ -10V - +10V
Audio output amplitude .......................10Vptp
Octave range ..................................... C0 – C8
Panel width ...............................................12HP
Module depth .......................................35mm
Power consumption .........................................
................................ 40mA@+12V, 36mA@-12V
Power consumption w. Expander ..................
................................55mA@+12V, 40mA@-12V
BLACK VCO AND VCO EXPANDER
The TUNE knob allows you
to set the tune of the VCO
across two octaves
Adjust pulse width
manually!
This is FM CV attenuator
These are VCO outputs.
All four waves and
suboscillator are available
simultaneously
TUNE
0
-1 +1
-2 +2
PULSE WIDTH
OCTAVE
FM LEVEL
1V/OCT FM IN
SYNC PWM
SINE TRI SAW PULSE SUB
BLACK VCO
This is VCO Sync input. Patch
another VCO output here to reset
VCO circle. This gives you new,
interesting waveforms
Use Octave switch to tune
the VCO up or down by
octaves instantly
Patch FM CV source here
for vibrato effects! Or try
it out with another VCO
or noise source and get
interesting new timbres!
Patch 1V/oct CV source
here. The VCO tracks well
across 8 octaves
Patch PWM CV source here!
10Vptp CV signal affects
pulse width form 1% to 99%