VCO
sold out at the moment
Meet Bib, Buzzrito, and Blueberry – three playful and powerful Plinky-inspired modules that bring rich sound design and expressive touch control to your Eurorack setup. Designed by Alex Evans (creator of Plinky) and Ray Yokell (CrazyEmperor893 of The Crey Emporium), these unique characters break out Plinky’s sensitivity into three specialized creatures: Bib, a stereo effect chain with drive, delay, and lush reverb; Buzzrito, a lively swarm oscillator with 2D touch control and CV-morphing presets; and Blueberry, a generative touch sequencer that responds to pressure and gesture with pitch and gate outputs. Each module stands strong on its own, but they shine even brighter together, combining tactile control and rich stereo sound.Features:Bib• Stereo drive, delay, and reverb effects with touch-based page selection• Real-time modulation via pressure-sensitive interface• CV input assignable to any parameter using tap-and-turn gesture• Rear TRS stereo I/O header (Intellijel-compatible) for line or headphone outputBuzzrito• Stereo swarm oscillator with 2D touchplate for preset morphing• Seven built-in presets with XY CV control and looping gesture recording• V/Oct and Gate inputs for easy integration into any Eurorack voice chainBlueberry• Generative touch sequencer with 5 pressure-sensitive pads• Record and play up to 5 pitch patterns with individual tunings• CV control for transposition, memory selection, clocking, and scrub• Clocked mode with expressive step sequencing and preserved dynamicsDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
The Witch is a compact and versatile polyphonic synthesizer. The Witch can be used Standalone, with a MIDI Controller, Analog Sequencer, or MIDI Polyphonic Expression / MPE Controller. It's USB powered or with 9V DC.It comes with four different synth engines:• SubTract Virtual Analogue synthesizer with 48dB resonant filter• VoSim Voice Simulator formant synthesizer• WaveBank Morphing wavetable synthesizer• QuadSampler Sampler with peak filterEach synthesizer engine is provided in two variants:• Expression Mode Continuous pitch control and MPE support• Performance Mode Discrete pitch control, standalone chords and classic MIDI supportOther features include two assignable tap tempo LFOs with continuously variable shapes and a powerful effects section.As well as eight factory patches, the Witch is fully compatible with the OWL Library of more than 300 patches. What’s more, users can create their own patches using any of the supported DSP languages: Pure data, Max gen~, SOUL, Faust, Maximilian and C++.The Witch has its own Synth Editor web application: witch.rebeltech.orgDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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All knobs and no menus, an FM synth engine with hands-on controlALGO's four oscillators can be configured in series or parallel combinations, to create Complex FM or additive sound textures.A unique Algorithm Display indicates the signal flow from one oscillator to another - easy to understand FM with pretty twinkly lights!Each oscillator has controls for Level and Frequency, allowing easy adjustment of FM timbres, no menu diving snorkels needed.Modulation inputs for Frequency or Level for each oscillator - patch in a couple of Envelopes, and you have an instant FM synth voice.Bored of Sine waves? A generous Wave Warp control bends things through Triangle to Pulse wave and back again.Wave Warp can be applied to Carrier, Modulator or both types of oscillator.For the more discerning mangler, Wave Folding is also available in three delicious flavours; Symmetric, Asymmetric and Soft Clip!A Global Detune spread control with CV input is great for creating Netflix apocalypse drones that descend into the abyss.Lastly an onboard Stereo Chorus can add a vivacious 1980's shimmer to all your FM creations.Oh, nearly forgot. It's Stereo !Features:• Frequency range 8 Hz - 35 kHz• Sampling frequency 85 kHz @ 2 x oversampled (170 kHz)• Four through zero oscillators• Harmonic intervals, Fine tune, or Fixed frequency options for each oscillator• Amplitude OR Frequency/V/OCT CV inputs for each oscilator• 9 FM algorithm combinations• Wave Shaping and three types of Wave folding• Multi Stage vari-speed high quality chorus effect• Stereo output, with Pan control for each oscillator in the stereo field• Pretty lights !PLEASE NOTE THE KIT IS ONLY SUITABLE FOR EXPERIENCED BUILDERS.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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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, combined with Vector synthesis OR true multi voice polyphony.The Vector Wave is a feature packed compact Eurorack module, which can be used as a stand alone synth-voice without the need for external VCA,ENV, LFOs etcWARNING! To build the kit you MUST have the following:• Accurate and stable 5.00V reference source to calibrate the module• Flux pen, or liquid flux• Two mini clamps• Clean high quality 2/3mm tip solder iron [chisel type recommended]Features:• 16 oscillators, divided into 4 banks, oscillators can freely configured into series or parallel combinations for complex FM or additive synthesis• A cute Vector Joystick for morphing between oscillator banks, for cool performance timbre sweeps and sonic movementVectors can be recorded from the joystick and replayed from trigger sources, or animated from external or internal modulation sources• Super cool retro Big-Pixel screen, ideal for nostalgia freaks or the visually impaired• Wave Warping brings grit and aggression to the FM synthesis with oscillators continuously variable between Sine,Tri-ish Saw, Pulse waveform• Wave Folding for subtle to extreme sonic bending• Two Envelope generators [per voice in polyphonic modes], and two LFOs with all controls assignable as modulation destinations• Intuitive Modulation Slot patching from external and internal sources to be routed to any parameter within the Vector Wave• 30 User Voice storage spaces for storing your synth masterpieces to internal memory, enabling you to impress your friends at a later date• Thee modes of oscillator bank allocation Monophonic Vector, and Polyphonic Voice, and Multitimbral Polyphonic• MIDI input for a spaghetti-free Polyphonic setup, velocity, aftertouch and MIDI CCs avail- able as modulation sources• Slim but handsome Expander Module also available that adds 3 more V/oct and Gate inputs, for maximum mutli-voice multitimbral melodious mayhem!PLEASE NOTE THE KIT IS ONLY SUITABLE FOR EXPERIENCED BUILDERS.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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V/Oct and Gate expander for RYK Vector Wave.The slim but handsome Vector Wave Expander module, adds 3 extra V/Oct and Gate inputs to the Vector Wave.Using Multi Timbral mode, these extra inputs can control 4 separate monophonic synth voices within the Vector Wave.This is a great way to add multi voice synth parts in a compact and unique Eurorack module!
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Polyphonic Synth VoiceBread & Butter is a General MIDI based polyphonic synth voice with 128 selectable instruments plus a drums preset. The sound banks have a synthetic and warm quality to them, and the variety of instruments makes this module a flexible and fun addition in any system.Bread & Butter features the standard V/OCT and GATE inputs for triggering the synth voice. Thanks to a polyphony of up to 64, the voices will decay independently making it possible to ratchet chords that decay polyphonically. If the HOLD function is engaged, each note will also sustain. In addition, the MIDI input can be used simultaneously with the V/OCT and GATE inputs. For example; trigger the drums on MIDI channel 10 while generating a bass line via the V/OCT/GATE inputs. The synth voices can also be played polyphonically via MIDI.The module features stereo outputs and the PAN knob lets you spread the polyphonic voices out in the stereo sound field. Parameters such as pitch bend, velocity and instrument selection can be voltage controlled.Features:• CV input range: +/- 5V• Gate input voltage: 3,3-10V• Polyphony: Up to 64 voices (40 voices with sustain)DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
The Sebsongs Modular Sampler DIY kits are now coming with presoldered surface mount components, making the DIY kit faster and easier to build.The Sebsongs Modular SAMPLER is an intuitive 12 bit audio recorder and manipulator designed for short loops and one shots. Sounds can be recorded either with the built in microphone or a mono input jack, which can handle anything from a regular laptop or smartphone to modular level signals. The SAMPLER has granular control of the recorded audio and you can play around with pitch, forward and reverse, start position and loop length (or connect cv/gate to any parameter) to open up a world of interesting sounds!The SAMPLER can be used in looping mode, where for instance time stretch like effects can be obtained easily by modulating the start parameter, or in one shot mode where the reset input is used to trigger playback of the recorded audio and the SAMPLER can function as a drum sample player.The maximum recording length is around 3.5 seconds in the highest sample rate (pitch control fully forward or reverse). If you lower the pitch you get longer recording time. Change the pitch while sampling to obtain pitch fluctuations and tape stop effects.Sound can be recorded either with the built in electret microphone or via mono input jack*. The audio input has enough gain for amplifying regular laptop or smartphone headphone outputs, and the input can also handle modular level signals.* If connecting stereo signal from a laptop / smartphone via either TS or TRS mini jack cable it is advisable to pan the source fully left to avoid distortion.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
Presenting timeless waveforms including Sine, Triangle, Pulse and 3 Sub-Octaves this oscillator emerges as an exceptionally stable, precise, and awe-inspiring sonic source. Its brilliance truly emerges when engaged in frequency modulation.Features• Classic Analog VCO• 4 Outputs: SINE, TRIANGLE, PULSE, SUB• Oscillation from supersonic to sub-audible (LFO)• 1V/Octave tracking• Pulse Width Modulation with Attenuator• Linear Frequency Modulation with Attenuator• Exponential Frequency Modulation with Attenuator• Integrated Frequency Divider• Up to 3 Sub-octaves• Attenuator for each Sub-octave• Wrong Polarity ProtectionDIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
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GIVE V2 is a sonic powerhouse that transcends the boundaries of traditional sound generation. The module is an exceptional analog VCO accompanied by a versatile waveform mixer and three suboctaves.Features:• Classic Analog VCO• 5 Outputs: SAW, TRI, SUB, NOISE, PULSE• 1V/Octave tracking• Pulse Width Modulation with Attenuator• Frequency Modulation with Attenuator• Integrated Waveform Mixer• Skiff friendly design• Wrong Polarity ProtectionDIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
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The 3394 Voice is a compact and flexible analog synth voice that packs a full signal chain into one module.VCO, VCF, VCA, envelopes, and noise. Based on the classic 3394 chip, it delivers rich analog tone with selectable square, saw, and triangle waveforms, routed through a juicy 24dB low-pass filter capable of self-resonance and pitch tracking. Two built-in envelopes shape both filter and amplitude, with switchable AD/AR modes for dynamic control. When unpatched, it acts as a constant VCO output, and the mix trimmer allows tonal variation by blending in a square sub, noise, or external signal. Ideal for melodic lines or snappy percussive sounds like kicks, snares, and zaps, the 3394 Voice is both a complete voice and a set of standalone building blocks for your Eurorack system.Features:• VCO with Triangle/Square/Saw waves• Lowpass resonant 24db filter• Square sub oscillator• Analog noise source• Built in VCA and 2 envelopes• Can also be used as separate Filter/VCO/VCA/Noise sourceDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The FMP is an 8 HP Eurorack FM synthesizer module built around the classic Yamaha YM2413 chip, known for its distinctive sound in vintage game consoles like the MSX, Atari, and Sega systems. Capable of producing everything from clean tones, deep kicks, and noisy snares to bell-like textures and even polyphonic chords, the FMP offers two modes: Tone mode provides a 2-operator FM voice with self-modulating feedback, while Drum mode exposes the chip’s built-in percussion sounds with adjustable levels and pitch. Seven parameters shape the sound and CV interpolation between two parameter sets enables evolving, expressive patterns. While inherently lo-fi, the FMP embraces this character to deliver dynamic, gritty textures, with settings that can be saved for consistent recall. Its charm lies in the unpredictability, offering a rich playground.Features:• 8 HP FM synth voice based on Yamaha YM2413 chip• Two modes: Tone (2-operator FM synth) & Drum (built-in percussion sounds)• Wide sonic range: kicks, snares, hats, bells, chords, and more• Seven tweakable FM parameters• Save and recall settings on power-up• Characterful lo-fi sound with modulator feedback• Adjustable pitch and mix levels in Drum mode• Inspired by classic game console sound chips (MSX, Sega, Atari)DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The SDSV+ is a Eurorack drum voice inspired by SyntherJack’s SDSV project and the iconic Simmons SDS5/SDSV drum machine. This enhanced version goes beyond the original by offering expanded sound-shaping capabilities and increased CV control, making it ideal for crafting everything from classic toms, snares, and kicks to hi-hat, crash, and FM-style metallic sounds. If you want to create vintage punch or experimental textures, the SDSV+ delivers dynamic percussion with modular flexibility.Features:• Envelope selection for the VCO and separate Decay pots• Option to use unfiltered noise for click (and the option to turn click off altogether)• Redesigned one of the envelopes to make it independent of input trigger length.• More CV inputs• Noise level controlDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Skorn da Bask is a expert for creating Drones. Its composed 3 analog Oszillator and a low pass filter. The VCOs can not only be used to generate audio signals, but for modulating the VCF’s cutoff frequency as well.Features:• 3 analog OSCillators/LFOs• 1 analog Low Pass Filter (24dB)• Osc 1, 2, 3 CV Modulation input• Filter Audio Input• Filter Modulation inputDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Multi Channel Sound SourceVCOs are probably the most popular modules in the Eurorack world.At its most common form, an oscillator module creates different basic waveforms by shaping its core, which gives us several timbres sharing the same frequency.On Sena, we decided to reorganize those principles. We have the basic waveforms as on any VCO, but each has an independent core and frequency control. In addition, the tuning inputs of each channel are daisy-chained, allowing to create easy transpositions or detuning between them.To maximize stability and tracking accuracy, every channel is designed around the famous 3340 oscillator core, present in many legendary synths like the Roland SH-101 and Jupiter-6, Oberheim OB-Xa, and the Sequential Prophet-5.On top of that, the module counts with four dedicated CV-controlled Modifiers to extend the timbral range of each core: a two-stage Folder for the Sine, a Trapezoid shaper for the Triangle, a Phase modulator for the Saw, and a half-range Pulse-width modulator for the Square.The addition of a complete analog Noise Bank makes Sena a super powerful and compact sound source. A cornerstone for any Eurorack setup.Features:• Fully analog VCO circuits: Sine, Triangle, Saw and Square• 1V/Oct pitch tracking over eight octaves• Dedicated CV controlled Wave Modifier on each oscillator• Daisy-chained Freq inputs with onboard buffers• Selectable LFO mode per channel• Analog noise bank with White, Pink, Blue and Brown circuitsDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
2VL1 is a 12HP Eurorack module that offers 2 independent, syncable VCOs and 1 free-running LFO in one compact package. This module uses no rare parts and is an easy to medium DIY build with through hole soldering. This DIY module consists of an assembly of 3 PCBs and robust black anodized 2mm thick front panel with crisp laser engraved graphics.Knob colors might differ from pictures.Kits packed according to Revision 07Features• One VCO with Saw/Pulse/Triangle waves, another with Saw/Pulse• One free-running LFO with square and triangle 20s (50mHz)-30Hz• VCO B syncable to VCO A or external signal• High thermal stability• Extremely good tracking (<4 cents over 7+ octaves typical)• Robust old-school design with all through hole components, large copper traces, and easily obtainable replacement parts.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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TZ0 Thru-Zero VCO. Classic analog sound with TZFM! TZ0 is an analog Voltage Controlled Oscillator module in Eurorack format. TZ0 is a triangle-core VCO which is capable of thru-zero linear FM. This VCO has been engineered for extremely good 1 V/oct response over a large tuning range and great thermal stability.Knob colors might differ from pictures.Kits packed according to Revision AGFeatures• Thru-Zero Linear Frequency Modulation.• 5 wave shapes: Sine, Triangle, Sawtooth, Square, & Pulse.• Extremely good tuning linearity.• Built-in high frequency compensation.• Hard Sync input (reset type).• Built in VCA for modulating Linear FM signal with an envelope.• Robust old-school design with mostly through hole components, large copper traces, and easily obtainable replacement parts.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Twins that dance in and out of phase, never completely together but never fully apart, bound to each other in the infinite universe.Castor & Pollux is a dual oscillator that echoes back to the legendary Roland Juno but shines with its own unique, massive voice. It contains two digitally-controlled analog oscillators implemented using a faithfully modernized version of the original Juno 106 design. It builds on the classic ‘80s sounds of its inspiration by using the second oscillator and internal LFO to layer in thick detuned sounds and harmonically complex hard synced waveforms.Castor & Pollux II brings a redesigned interface and moves individual waveform outputs to an included expansion. Both versions have the same features and use the same firmware.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The Dual VCO is a 4 HP Dual Voltage Controlled Analog Oscillator Eurorack Module.Each VCO has square, triangle, and sine wave out, coarse and fine tuning controls, a control voltage input, and a switch for selecting exponential or linear cv in. When a control voltage is inserted, the fine tune control becomes an attenuator for the incoming voltage. In exponential mode, when the attenuator is fully clockwise, the VCO will track around 5 volts per octave.The dual vco currently ships with the black/white pcb panel.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The Trepanator is a 14 HP analog “Bent by Design” experimental instrument featuring a Dual VCO, Difference Rectifier, 3-band EQ, Sample/Track and Hold, and SVF (state variable filter) all built into one nonlinear module. Its origins trace back to a love for Rob Hordijk’s Benjolin and patching a similar pseudo chaotic feedback-based instrument from scratch using all Zlob modules.Although not based on Hordijk’s circuit or signal flow, it uses a similar architecture of dual voltage controlled oscillators, an “interference pattern generator,” a state variable filter, and internalized cross-patched feedback. Instead of a Rungler and comparator the Trepanator uses a sample/track and hold with slew, a difference/rectifier circuit (based on NLC), and a self-oscillating 3-band EQ. Utilizing this excessive feedback between the VCO’s, EQ, S/H, and SVF, creates a completely new instrument for discovering abstract electronic sounds. The Trepanator is a highly interactive, unpredictable, and an immediate instrument capable of a huge range of organic and sounds from: snarling, plucking, bubbling, screaming, gurgling, hissing, grunting, pinging, and quacking, to machine like rhythmic loops, circuit bent broken modem sounds, no-input mixer screeching, intermittent short wave radio fizzling, and full on Harsh Noise Wall all within the touch of a fader or a small knob turn without any external audio or any control voltage in.Double Sided PCB panel with Classic and Soulless.For more info consult the manual below and signal flow chart.RIP Rob HordijkDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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Achordion is a chord-crafting, quantizing wavetable oscillator for Eurorack. It combines 37 smoothly transitioning wavetables with up to 18 simultaneous voices, producing anything from clean single tones and warm pads to dense, detuned walls of sound.Four playing styles – single tone, chords, arpeggios and intervals – make harmony immediately playable. Notes are quantized to a selectable scale, so the module can handle the underlying music theory while remaining intuitive for live performance and experimentation.Two independent 1V/oct inputs create separate melodic lines, and two audio outputs can either carry those lines independently or mix them when only one output is patched. Dedicated controls and CV inputs for wavetable, tone, detune and chord selection, together with an eight-LED display, keep complex voicings easy to navigate.Features• Quantizing wavetable oscillator and chord generator• 37 smoothly transitioning wavetables in four banks• Up to 18 simultaneous voices• Sub-octaves, duplicated tones and chords• 4 modes: single tone, chords, arpeggios, intervals• Quantization to a selectable scale• Dual 1V/oct inputs and dual audio outputs• 8 LEDs visualize parameters and settings• Open-source Rust firmware on Daisy Patch SM• 10 HP, skiff-friendly Eurorack moduleDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.