Oscillator / VCO

Make Noise - XPO - Stereo Prismatic Oscillator

The latest Make Noise Module XPO or Stereo Prismatic Oscillator is a Voltage Controlled Analog Oscillator designed for generating Sine waves, Triangle waves, Sawtooth and Spike…

Verbos Electronics - Foundation Oscillator

The long awaited small VCO from Verbos Electronics.

It is based on the same discrete transistor core as the other Verbos oscillators. In addition to outputs for the Square and Triangle…

Eowave Weather Drones

The Weather Drones is an all in one drone voice for eurorack modular.

It features a triangle based digital oscillator and a lowpass filter. Furthermore it offers three modulation sources: LFO with square…

Make Noise DPO

A dual Voltage Controlled Oscillator designed for generating complex waveforms. Expanding on the classic arrangement of Primary and Modulator Oscillators, the DPO has both of the VCOs operable as complex signal…

DOEPFER A-111-5V SYNTHESIZER VOICE VINTAGE (AS3394) The A-111-5V is a monophonic synthesizer voice in Eurorack format. The entire sound generation and all modulation sources are 100% analog. Basically it is a Dark Energy without…

IO Instruments - THEMISTO (VCO)

High precision VCO with wide frequency range

Clean waves without edge aberrations

PW from 0%-100% with fast edges for rich sound

Low distortion SINE wave

SUB OSC with rich sound and phase…

2hp - Pluck

Pluck is a physical modeling synth voice. It uses the Karplus-Strong algorithm to create plucked string sounds. The dampening control sets the size of the string and allows for dramatic timbral shifts.

The decay…

2hp - Vowel (Black)

Vowel is a speech synthesis and formant oscillator. It synthesizes and approximates the human voice by generating vowel sounds. These can be manipulated to provide deep low baritones, or high pitched squeaks.…

(In Doepfer Bag, no box)

Doepfer A-110-1 Standard VCO

Module A-110-1 is a voltage-controlled oscillator. This VCO's frequency range is about eight octaves (ca. 15Hz ... 8kHz). It can produce four waveforms simultaneously:…

(In Doepfer Bag, no box)

Doepfer A-110-1V (vintage black edition) Standard VCO

Module A-110-1 is a voltage-controlled oscillator. This VCO's frequency range is about eight octaves (ca. 15Hz ... 8kHz). It can produce four…

Doepfer A-110-2 Basic VCO

Module A-110-2 is a low-cost voltage-controlled oscillator. It's a slightly reduced version of the standard VCO A-110-1. Compared to the A-110-1 the A-110-2 has no sine output and the (expensive) octave…

(In Doepfer Bag, no box)

Doepfer A-110-2V (vintage black edition) Basic VCO

Module A-110-2 is a low-cost voltage-controlled oscillator. It's a slightly reduced version of the standard VCO A-110-1. Compared to the A-110-1 the…

(In Doepfer Bag, no box)

Doepfer A-110-4 Quadrature VCO

A-110-4 is a so-called Thru Zero Quadrature VCO. The term "quadrature" means in this connection that the oscillator outputs sine and cosine waveforms simultaneously. The…

Doepfer A-111-2 High end VCO II

The successor of the A-111 High End oscillator is an utterly precise analog VCO/LFO with a extremely big frequency range, immaculate tracking over at least ten octaves and nearly perfect…

Doepfer A-111-2v High end VCO II

The successor of the A-111 High End oscillator is an utterly precise analog VCO/LFO with a extremely big frequency range, immaculate tracking over at least ten octaves and nearly perfect…

Doepfer A-111-3 Micro Precision VCO

The Micro Precision VCO is a space-saving and utterly precise analog VCO/LFO with a extremely big frequency range, immaculate tracking over at least ten octaves and nearly perfect…

DOEPFER A-111-6 MINIATURE SYNTHComplete miniature synthesizer voice module

VCO

∙ triangle core VCO
∙ manual tune control and octave switch
∙ modulation input for frequency (FM) or pulsewidth modulation (PM)
∙ manual…

Module A-143-4 is a fourfold voltage controlled low frequency oscillator (LFO). As the frequency range includes moderate audio frequencies it can be used as a four-fold VCO too.

∙ four independent VCLFOs/VCOs with triangle…

Module A-143-9 is a derivative of our planned thru-zero quadrature VCO. It is a voltage controlled sine LFO with 4 outputs. The phase shift between the outputs is 90 degrees. The sine shifted by 90 degrees is also called cosine,…

Module A-196 contains a so-called phase locked loop (PLL). The basic PLL system is shown in the sketch at the bottom of this page. A PLL consists of three parts: voltage-controlled oscillator (VCO), phase comparator (PC), and…

Qu-Bit Electronix - EON Silver (Envelope, Oscillator, and Noise)

EON is an envelope, oscillator, and noise source in 2 HP. (click here for other 2HP modules)

It has three modes that are quickly and easily set via a 3 position…

INTELLIJEL DR. OCTATURE II (VCO/LFO)4-POLE LOW PASS FILTER AND OCTATURE SINE WAVE VCO/LFOJust like the original Dr. Octature the basis of the module is a 4-pole lpf inspired by the classic “cascaded ota” design, but realized…

µVCFIntroducing the µVCF state variable filter.

This is another great David Dixon filter design that has been on the workbench for a while. It is a very clean and precise filter that also doubles as an excellent sine VCO.

It…

Make Noise 0-Coast (semi-modular) stand alone Synth

The 0-COAST is a single voice patchable synthesizer. It’s name reflects the fact that it utilizes techniques from both the Moog and Buchla paradigms (aka “East Coast,” and…

Make Noise STO
STOA compact Voltage Controlled Oscillator designed for generating SINE waves, Variable wave-SHAPEs, SUB-Octaves, Oscillator SYNC and Linear FM in the analog domain. The Sub-Timbral Oscillator is the more subtle and…

Richter WogglebugThe "WoggleBug" is a random voltage generator, originally designed by Grant Richter of Wiard Synthesizers. It is a continuation of the "smooth" and "stepped" fluctuating random voltage sources pioneered by Don…

Noise Engineering Ataraxic Translatron (AT)

The Ataraxic Translatron is a linear feedback shift register oscillator similar to those used in the first generation of home video game consoles such as the Atari VCS as well as many…

Noise Engineering - Cursus Iteritas (CI) (black version)

Cursus Iteritas Dynamically generated wavetable oscillator using orthogonal functions.

Cursus Iteritas is an oscillator that works from a dynamically generated wavetable.…

Noise Engineering - Loquelic Iteritas (LI) Black version

Loquelic Iteritas is a 10HP digital VCO with interpretations of three classic synthesis algorithms (VOSIM, Summation Synthesis and Phase Modulation) involving dual pitch…

Qu-Bit Electronix Chord

The Chord is a plug and play solution for bringing musical polyphony to your system. It is a four voice oscillator with individual and summed outputs. All voices are tuned together, allowing for quick and…

ReBach - Catch VCO-A

∙ Eurorack Voltage Controlled Oscillator
∙ Characteristics: Warm sound through our design and beautiful FM sounds.
∙ CEM 3340 style.
∙ Superior 1v/oct tracking and temp stability.
∙ Linear FM-input…

Verbos Electronics - Complex Oscillator

In the West Coast philosophy of synthesis, one oscillator modulating another is a classic way of creating rich timbres. Voltage control of the modulation and of the waveshape is essential…

Doepfer A-111-3V Vintage

The Micro Precision VCO is a space-saving and utterly precise analog VCO/LFO with a extremely big frequency range, immaculate tracking over at least ten octaves and nearly perfect waveforms. Basically it…

Doepfer A-111-5 Synthesizer Voice (AS3394)

Module A-111-5 was out of production many years as the special circuit CEM3394 used as core of the module was no longer available. Now a clone of the CEM3394 is available…

Klavis Twin Waves MKII

Voltage-controlled Dual VCO/LFO/random

Two oscillators independently set as VCO, LFO, or random generator
Features in VCO mode:
V/Oct tracking over 10 octaves
Through zero and linear FM
Sub-octave…

Buchla & Tiptop Audio 258t - Dual Oscillator

Two independent voltage-controlled oscillators. Each has one processing input, a frequency modulation input and a 1V/oct input.
Waveshapes, as well as frequency, can be voltage…

RYK - Vector Wave - FM / Harmonic Vector Stereo Synth Voice

FM & VECTOR SYNTHESIS

TWO ICONS OF THE '80S IN ONE UNIT

Introducing the new Vector Wave from RYK Modular bringing together the awesome power of 16 oscillator FM,…

Noise Engineering - Debel Iteritas Alia (DIA) (black)

Hybrid additive phase-modulation voice on a swappable oscillator platformDebel Iteritas Alia is a hybrid additive phase-modulation voice inspired by some of our favorite synth…

Noise Engineering - Basimilus Iteritas Alia (black)

Universal drum synthesizer with roots in the analog world on a swappable 10HP oscillator platformBasimilus Iteritas Alia is a parameterized digital drum voice with its roots in…

Noise Engineering - Debel Iteritas Alia (DIA)

Hybrid additive phase-modulation voice on a swappable oscillator platformDebel Iteritas Alia is a hybrid additive phase-modulation voice inspired by some of our favorite synth sounds…

Noise Engineering - Basimilus Iteritas Alia

Universal drum synthesizer with roots in the analog world on a swappable 10HP oscillator platformBasimilus Iteritas Alia is a parameterized digital drum voice with its roots in the…

Manis Iteritas AliaGross, gritty, and dark industrial-strength voice on a swappable oscillator platform. Pangolin approved.Manis Iteritas Alia is a voice based on the architecture of Basimilus. It was designed to be more gritty…

Doepfer A-188-9 High Speed VCO / Audio VCO

Module A-188-9 is a so-called high speed VCO that tracks prefectly to the 1V/oct scale in the frequency range of about 15kHz ... 500 kHz. The main application is the exact drive of BBD…