Quick Start Guide
110 VCO/VCF/VCA
Legendary Analog VCO/VCF/VCA
Module for Eurorack
Controls
(2) (9)(1)
(1) PW MOD – Accept s a voltage from ano ther module
to control t he pulse width. Wh en a jack is inserte d the
MOD MANUAL cont rol acts as a MOD inp ut level control.
(2 ) VCO OUT – S end the VCO signal to anoth er source via
3.5 mm TS cabl e.
(3 ) WAV EFORM – Sele ct triangle, saw tooth or pulse
wavefor ms for the VCO.
(4 ) MOD MANUAL – S ets the ratio bet ween the upper and
lower por tions of the pulse w ave.
(5 ) RES – Bo osts the reson ance frequencie s selected wi th the
CUTOFF FREQ slider, potentially causing VCF oscillation.
(6 ) CU TOFF FREQ – Adjusts t he cuto freque ncy of the
low-pass lter.
(7 ) R ANGE – Sets the pitch ra nge of the VCO in octave s teps.
(8 ) PITCH – F ine tunes the pitch .
(9 ) VCF/ VCA SIG IN – Connect in coming signals via 3.5 mm
TS cable s.
(10) SIG LEVEL – Adjust the l evel of the signals conn ected to
the input s.
(11) VCA OUT – Sen ds the VCA signal via 3.5 mm T S cable with
either hig h or low signal levels.
(12 ) INITIAL GAIN – Adjusts t he initial gain level w hen there is
no contro l voltage present . The adjacent LEDs wil l light to
indicate s ignal (green) and overlo ad (red).
(13 ) MOD LEVEL – Adjusts th e level of the signal con nected to
the assoc iated MOD IN jack.
(14) MOD IN – Accepts vol tages that contro l or modulate the
VCO, VCF or VCA.
Power Connection
(10)
(11)
(12)
The modul e comes with the req uired power cable f or connecting
to a standa rd Eurorack power su pply system. Fol low these
(13)
steps to con nect power to the mo dule. It is easier to make
these con nections bef ore the module has be en mounted into
a rack cas e.
1. Turn the power supp ly or rack case powe r o and
disconne ct the power cabl e.
2. Ins ert the 16-pin conn ector on the powe r cable into the
socket on t he power supply or rac k case. The connec tor has
a tab that wi ll align with the gap in t he socket, so it can not
be inser ted incorrec tly. If the power supply d oes not have
a keyed socke t, be sure to orient p in 1 (-12 V) with the red
stripe o n the cable.
3. Ins ert the 10-pin co nnector into the s ocket on the back of
the modul e. The connector ha s a tab that will align wi th the
socket fo r correct ori entation.
4. Af ter both ends of the po wer cable have been se curely
attac hed, you may mount the mo dule in a case and tur n on
the power supply.
V 1.0
2 110 VCO/VCF/VCA
Installation
The neces sary screws a re included with th e module for mount ing
in a Eurorac k case. Connect t he power cable bef ore mounting.
Dependi ng on the rack case, th ere may be a series of xed holes
spaced 2 HP ap art along the leng th of the case, or a tra ck that
allows indi vidual threaded p lates to slide along th e length
of the cas e. The free-movi ng threaded plate s allow precise
positio ning of the module, bu t each plate should be p ositioned in
the approx imate relation to th e mounting holes in yo ur module
before a ttaching the sc rews.
Hold the mo dule against the Eur orack rails so that ea ch of the
mounting h oles are aligned wi th a threaded rail o r threaded
plate. Att ach the screws par t way to start, w hich will allow
small adjus tments to the pos itioning while you g et them all
aligned. Af ter the nal posi tion has been est ablished, tighten t he
screws d own.
Specications
Inputs
Pulse width mod
Type 3.5 mm TS jack, DC coupled
Impedance >70 kΩ, unbalanced
Maximum input level 0 V to +10 V, 4% per volt
Signal input
Type
Impedance >50 kΩ, unbalanced
Max input level +17 dBu @ unity gain
VCO mod input
Type
Impedance >50 kΩ, unbalanced
CV range 0 V to +10 V, 1 V/oct
VCF mod input
Type
Impedance >50 kΩ, unbalanced
CV range 0 V to +10 V, 1 V/oct
VCA mod input
Type
Impedance >50 kΩ, unbalanced
CV range 0 V to +10 V, typically 1 V
4 x 3.5 mm TS jacks,
AC coupled
2 x 3.5 mm TS jacks,
summed
2 x 3.5 mm TS jacks,
summed
2 x 3.5 mm TS jacks,
summed
per 10 dB
Outputs
VCO output
Type 3.5 mm TS jack, DC coupled
Impedance 1 kΩ, unbalanced
Max output level 10 V p-p
Frequency range with no
external CV
Frequency range using
external CV
VCA output
Type
High impedance 1 kΩ, unbalanced
Low impedance 3 kΩ, unbalanced
High max output level +18 dBu
Low max output level -2 dBu
High output noise <-60 dBu, 22 Hz -22 kHz
Low output noise <-80 dBu, 22 Hz -22 kHz
Controls
Pulse width manual 50% to min
Waveform Triangle, sawtooth, pulse
Range 32’, 16’, 8’, 4’, 2’
Pitch 2 octave range
Cuto frequency 20 Hz to 20 kHz
Resonance O to self oscillation
Sig in level -∞ to unity gain
Mod in level -∞ to unity gain
VCA initial gain -∞ to unity gain
Power
Power supply Eurorack
Current draw 80 mA (+12 V), 50 mA
Physical
Dimensions
Rack units 16 HP
Weight 0.19 kg (0.42 lbs)
<10 Hz to 500 Hz
<1 Hz to 30 kHz
2 x 3.5 mm TS jacks, AC
coupled
(-12 V)
81 x 129 x 46 mm
(3.2 x 5.1 x 1.8")