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  • Products
    • Eurorack
      • 1U Eurorack Modules
        • 1U Mattson Buffered Multiple
        • 1U Stereo Output Mixer
        • 1U UniBuffer
        • 1U Unity Gain Mixer
        • Common 1U Tile
      • 308 Distortion Module
        • 308 Schematic
      • 4093 Chaos NAND – Eurorack
      • ADAPT Series
      • ADSR
      • Arcadian Rhythms
      • Atari Punk Console – Modular
        • Eurorack Atari Punk Console Schematic
      • AVR Programming Interface
      • Case Power
      • Case Power Mini
      • DIRT Filter
        • DIRT Filter Schematic
      • DLY
      • DS-M Drum Synth Module
      • ECHO
        • ECHO Schematic
      • Five Amp
      • FOLD
      • LPG – Low Pass Gate
      • M/DIV
      • Nandamonium
      • Noise Filtering Power Distribution Board
      • OBEY
      • Octave Fuzz
      • Passive Mult
      • Power Pak
      • Quadrangle
        • Quadrangle Schematic
      • Ribbon Controller Touch Interface
      • RND
      • Roboto
      • Sequence 8
      • Super Power
      • TST
      • TURN
      • USB Power
      • VCO
      • Verb
      • Water Proof 7U Portable Eurorack Case
      • XFD – Assembly Instructions
    • MST (Mattson-Synthrotek)
      • MST ’07 Buffered Multiple
      • MST 4-Channel Audio / CV Mixer
      • MST Dual 2164 VCA
      • MST Dual AD/ASR Envelope Generator
      • MST Expressor
      • MST MIDI to CV Converter
      • MST MIDI to CV Expander
      • MST Noise / Sample & Hold / Track & Hold
      • MST Ribbon Controller Module
      • MST Stereo Output Mixer
      • MST Unity Gain Mixer
      • MST VC LFO
      • MST VC Low Pass Filter
      • MST VCO – Voltage Controlled Oscillator
    • Lo-Fi Synths
      • 4093 Chaos NAND Synth
        • 4093 Chaos NAND Synth
      • 4093 Chaos NAND Handheld
      • 555 Timer Oscillator
        • 555 Timer Schematic
      • AstroNoise
        • AstroNoise Schematic
      • Atari Punk Console
        • Atari Punk Console Schematic
      • APC Handheld
      • Nandamonium
      • Optical Theremin
        • Optical Theremin Schematic
      • Passive Ring Modulator
        • Passive Ring Mod Schematic
      • PT2399 Dev Delay
        • PT2399 Dev Delay Schematic
      • Vac Pak
        • Vac Pak Schematic
    • Guitar Pedals
      • Arbiter Fuzz Face Clone
        • Arbiter Fuzz Face Clone Schematic
      • Cosmic ECHO
      • Cosmic ECHO Squared
      • Face the Fuzz
      • Mean Screamer
        • Mean Screamer Schematic
      • Ratatak
        • RATATAK Schematic
    • Extras
      • Cables
        • S-Trigger Cables
      • Enclosures/Project Boxes
    • Discontinued Products
      • 8 Step Basic Analog Sequencer
        • 8 Step Sequencer Schematic
      • 10 Step Basic Analog Sequencer
      • 16 Step Analog Sequencer
        • 16 Step Analog Sequencer Schematic
      • Chorus Pedal
      • CCM – Clock Capture Module
        • Clock Capture Module Schematic
      • Combine-OR
        • Eurorack Combine-OR Schematic
      • Deluxe Power Module
      • DIY Stompbox
      • DS-8 Drum Synth Clone Assembly Instructions
        • DS-8 Schematic
      • Echo Quest LFO Delay Pedal
      • Either-OR
        • Eurorack Either-OR Schematic
      • Eurorack 5A Power Supply
      • iPod/iPad/iPhone Interface
      • Lo-Fi Amplifier
        • Lo-Fi Amp Schematic
      • Lo-Fi Fuzz Distortion
        • Lo-Fi Fuzz Distortion Schematic
      • Modular PT2399 Delay (16mm)
      • Passive A/B Switch
        • Passive A/B Switch Schematic
      • PT2399 Lo-Fi Delay
      • PT2399 Delay Pedal
        • PT2399 Delay Pedal Schematic
      • Mega Drone Schematic
        • Mega Drone Schematic
      • Space Drum Synth
      • VCA
        • VCA Schematic
      • Voice of Saturn Analog Sequencer
        • Voice of Saturn Sequencer Schematic
      • Voice of Saturn Synth
        • Voice of Saturn Synth Schematic
  • Kit Assembly Instructions
    • Eurorack Assembly Instructions
      • 1U Modules
        • 1U Lil’ Buff Mult Assembly Instructions
        • 1U Mattson Buffered Multiple Assembly Instructions
          • 1U Mattson Buffered Multiple BOM
        • 1U Momentary/Latching Pass-through Switch
        • 1U Stereo Output Mixer Assembly Instructions
          • 1U Stereo Output Mixer
        • 1U UniBuffer Assembly Instructions
          • 1U UniBuffer BOM
        • 1U Unity Gain Mixer Assembly Instructions
          • 1U Unity Gain Mixer
        • Common 1U Tile Assembly Instructions
        • P.OUT 1U Tile
      • 2HP Buff Mult Assembly Instructions
      • 308 Assembly Instructions
        • 308 BOM
      • 3U ADAPT Series Assembly Instructions
        • ADAPT 1/4 Assembly Instructions
      • 4093 Chaos NAND Synth Assembly Instructions
        • 4093 Chaos NAND – Eurorack BOM
      • ADSR Assembly Instructions
        • ADSR Bill of Materials
      • Arcadian Rhythms Assembly Instructions
      • AstroNoise Eurorack Assembly Instructions
      • Atari Punk Console Modular Assembly Instructions
        • Atari Punk Console Modular Bill of Materials
      • AVR Programming Interface Assembly Instructions
        • AVR Programming Interface Bill of Materials
      • Bus Cheeks Assembly Instructions
        • Bus Cheeks BOM
      • Case Power Assembly Instructions
        • Case Power BOM
      • Case Power Mini Assembly Instructions
        • Case Power Mini BOM
      • CF Assembly Instructions
      • DLY Assembly Instructions
        • DLY BOM
      • DIRT Filter Assembly Instructions
        • DIRT Filter BOM
        • 9V DIRT Filter Assembly Instructions
      • DS-M Assembly Instructions
        • DS-M BOM
      • ECHO Assembly Instructions
        • ECHO BOM
      • EcoSkiff Assembly Instructions
      • Eurorack Case Bracket Assembly Instructions
      • Five Amp Assembly Instructions
      • FOLD Assembly Instructions
        • FOLD Bill of Materials
      • Head Out Assembly Instructions
      • Limaflo Motomouth Assembly Instructions
      • LPG Assembly Instructions
        • LPG Bill of Materials
      • M/DIV Assembly Instructions
      • Mini Power Distribution Board Assembly Instructions
      • MIX Assembly Instructions
        • MIX BOM
      • MIXIV Assembly Instructions
      • Nandamonium Assembly Instructions
        • Nandamonium BOM
      • Noise Filtering Power Distribution Board Assembly Instructions
        • Noise Filtering Power Distribution Board BOM
      • OBEY Assembly Instructions
        • OBEY Bill of Materials
      • Octave Fuzz Assembly Instructions
        • Octave Fuzz Bill of Materials
      • Passive Mult Assembly Instructions
        • Passive Mult BOM
      • Power Pak Assembly Instructions
        • Power Pak BOM
      • Power UP! Assembly Instructions
      • Quadrangle Assembly Instructions
        • Quadrangle BOM
      • Ribbon Controller Touch Interface Assembly Instructions
        • Ribbon Controller Touch Interface Bill of Materials
      • RND Assembly Instructions
        • RND Bill of Materials
      • Roboto Assembly Instructions
        • Roboto Bill of Materials
      • Sequence 8 Assembly Instructions
        • Sequence 8 BOM
      • S.MULT Assembly Instructions
      • Skiff Power Mini Assembly Instructions
      • Skiff Power Mini Lite Assembly Instructions
      • Super Power Assembly Instructions
        • Super Power BOM
      • Super Power 2 Assembly Instructions
      • TST Assembly Instructions
        • TST BOM
      • TS2 Assembly Instructions
      • TURN Assembly Instructions
        • TURN Bill of Materials
      • USB Power Assembly Instructions
        • USB Power Bill of Materials
      • VCA Assembly Instructions
      • VCO Assembly Instructions
        • VCO BOM
      • Verb Assembly Instructions
        • Verb Bill of Materials
    • MST (Mattson-Synthrotek) Assembly Instructions
      • MST ’07 Buffered Multiple Assembly Instructions
        • MST ’07 Buffered Multiple BOM
      • MST 4-Channel Audio / CV Mixer Instructions
        • MST 4-Channel Audio / CV Mixer BOM
      • MST Dual 2164 VCA Instructions
        • MST Dual 2164 VCA BOM
      • MST Dual AD/ASR Envelope Instructions
        • MST Dual AD/ASR Envelope BOM
      • MST Expressor Assembly Instructions
        • MST Expressor BOM
      • MST MIDI to CV Converter Assembly Instructions
        • MST MIDI to CV Converter BOM
      • MST MIDI to CV Expander Assembly Instructions
        • MST MIDI to CV Expander BOM
      • MST Noise / S&H / T&H Instructions
        • MST Noise / S&H / T&H BOM
      • MST Ribbon Controller Module Assembly Instructions
        • MST Ribbon Controller Module Bill of Materials
      • MST Stereo Output Mixer Assembly Instructions
        • MST Stereo Output Mixer BOM
      • MST Unity Gain Mixer
        • MST Unity Gain Mixer BOM
      • MST VC LFO Instructions
        • MST VC LFO BOM
      • MST VC Low Pass Filter Instructions
        • MST VC Low Pass Filter BOM
      • MST VCO Assembly Instructions
        • MST VCO BOM
    • Lo-Fi Synth Assembly Instructions
      • 4093 Chaos NAND Synth Assembly Instructions
        • Chaos NAND Synth BOM
      • 4093 Chaos NAND Handheld Assembly Instructions
        • 4093 Chaos NAND Handheld BOM
      • 555 Timer Assembly Instructions
        • 555 Timer BOM
      • AstroNoise (Atari Junk) Assembly Instructions
        • AstroNoise (Atari Junk) BOM
      • Atari Punk Console Assembly Instructions
        • Atari Punk Console BOM
      • APC Handheld Assembly Instructions
        • APC Handheld BOM
      • LM386 Amplifier Assembly Instructions
      • Nandamonium Assembly Instructions
        • Nandamonium BOM
      • Optical Theremin Assembly Instructions
        • Optical Theremin BOM
      • Passive Ring Modulator Assembly Instructions
        • Passive Ring Modulator BOM
      • PT2399 Dev Delay Assembly Instructions
        • PT2399 Dev Delay BOM
      • Vac Pak Assembly Instructions
        • Vac Pak BOM
    • Guitar Pedal Assembly Instructions
      • Arbiter Fuzz Face Clone – Assembly Instructions
        • Arbiter Fuzz Face Clone BOM
      • Cosmic Echo – Stomp Wizard Assembly Instructions
      • Cosmic Echo Squared – Stomp Wizard Assembly Instructions
      • Cosmic ECHO Assembly Instructions
        • Cosmic ECHO BOM
      • Expression Slider Assembly Instructions
      • EZ3PDT Assembly Instructions
      • Face the Fuzz Assembly Instructions
        • PCB Mount Face the Fuzz
        • Wired Face the Fuzz
      • Mean Screamer Assembly Instructions
        • WIRED Mean Screamer Assembly Instructions
        • PCB MOUNT Mean Screamer Assembly Instructions
      • RATATAK Assembly Instructions
        • Wired RATATAK Assembly Instructions
        • PCB Mount RATATAK Assembly Instructions
    • Discontinued Products
      • 8 Step Sequencer Assembly Instructions
        • 8 Step Sequencer BOM
      • 10 Step Basic Analog Sequencer Assembly Instructions
      • 16 Step Sequencer Assembly Notes
        • 16 Step Sequencer MOD BOM
        • 16 Step Sequencer MOD Instructions
        • 16 Step Drill Template
        • 16 Step Deluxe Sequencer BOM
        • 16 Step Deluxe Sequencer Assembly Instructions
      • CCM – Clock Capture Module Assembly Instructions
        • CCM – Clock Capture Module BOM
      • Chorus Pedal Assembly Instructions
        • Chorus Pedal BOM
      • COMBINE-OR Assembly Instructions
        • Eurorack Combine-OR BOM
      • Cosmic Echo Squared Assembly Instructions
        • Cosmic Echo Squared Bill Of Materials
      • Deluxe Power Module Assembly Instructions
        • Deluxe Power Module BOM
      • DS-8 Drum Synth Clone Assembly Instructions
        • DS-8 Drum Synth Clone BOM
      • DIY Stompbox Assembly Instructions
        • DIY Stompbox Boost Demo Project
        • DIY Stompbox Layout Template
        • DIY Stompbox BOM
      • DIRT Filter 2.0 Assembly Instructions – 9V Version
      • DIRT Filter 2.0 Assembly Instructions – Eurorack Version
      • EITHER-OR Assembly Instructions
        • Eurorack Either-OR BOM
      • Eurorack 5A Power Supply Instructions
        • Eurorack 5A Power Supply BOM
      • Eurorack Power Distribution Board Instructions
        • Eurorack Power Distribution Board BOM
      • LoFi Audio Amplifier Assembly Instructions
      • LoFi Fuzz Distortion Assembly Instructions
        • LoFi Fuzz Distortion BOM
        • LoFi Audio Amplifier BOM
      • Mega Drone Synth w. CV & Clock Inputs Assembly Instructions
        • Mega Drone Synth BOM
      • Modular PT2399 Delay (16mm) Assembly Instructions
        • Modular PT2399 Delay (16mm) Bill of Materials
      • MST ’07 Buffered Multiple Assembly Instructions (7HP and 8HP)
        • MST ’07 Buffered Multiple BOM (7HP and 8HP)
      • Music Thing Modular
        • Mikrophonie BOM
      • Passive A/B Switch Assembly Instructions
        • Passive A/B Switch BOM
      • PT2399 Delay Pedal Assembly Instructions
        • PT2399 Delay Pedal Bill Of Materials
      • Rat Clone (Original) – PCB-Mounted Only
        • PCB Mounted Rat Clone BOM
      • Rat Clone (Original) – Wired
        • Wired RAT Clone BOM
      • Space Drum Synth Assembly Instructions
        • Space Drum Synth Bill of Materials
      • Tube Screamer (Original) – Wired
        • Wired Tube Screamer BOM
      • Tube Screamer (Original) – PCB-Mounted Only
        • PCB Only Tube Screamer BOM
      • VCA Assembly Instructions
        • VCA BOM
      • Voice of Saturn Sequencer Assembly Instructions
        • Voice of Saturn Analog Sequencer BOM
      • Voice of Saturn Synth Assembly Instructions
        • Voice of Saturn Synth BOM
      • Voice of Saturn Sequencer Assembly Instructions – VERSION 1
        • VERSION 1 Voice of Saturn Analog Sequencer BOM
  • Support
    • Contact Info
    • Troubleshooting Your Build
    • Drill Templates
      • Tube Screamer Drill Template
      • Rat Clone Drill Template
      • Fuzz Face Drill Template
      • Synthrotek Rail Drilling Template
    • MODs
      • APC Bass Version
      • Inside the Chaos NAND
      • PT2399 Delay Console Switch
      • Rat Clone Diode and Switches
      • PT2399 Dev Board Mods
      • Active Ring Mod
      • NAND Synth optical resistor MOD
      • PT2399 Dev Board Mods
    • Tips and Tricks
      • Stomp Switch Wiring
      • Volume Potentiometer
      • Power Supplies
    • Tutorials
      • DIY S-Trigger Cable Assembly Instructions
    • FAQ
    • Modular Synthesis
    • Music
  • Vendors
✕
March 3, 2022
XFD Eurorack CrossFader
March 3, 2022

XFD Module Released!

BUY HERE The XFD is a CV-controlled vactrol-based crossfader module, ideal for both audio and bipolar CV sources. It can be used as a cv-controlled attenuator: […]
Do you like it?12
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July 5, 2021
Synthrotek 5A Power Eurorack
July 5, 2021

Five Amp Power Supply in Eurorack Released!

BUY THE MODULE HERE! The Five Amp is a throwback to our original 5A Power Supply with some upgrades. It uses a quality 12V brick for […]
Do you like it?96
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July 5, 2021
Sound Study VID PIX video module
July 5, 2021

Sound Study VID PIX Module

CLICK HERE TO BUY THE MODULE The VidPix makes all your 8bit video dreams come true! It uses incoming audio to change the video patterns onscreen. […]
Do you like it?39
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January 16, 2020
January 16, 2020

MIXIV Eurorack Module

CLICK HERE TO BUY The MIXIV is a four channel mixer in 4HP.  This is Synthrotek’s first partial SMD kit and it is very fun and […]
Do you like it?394
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October 23, 2019
Arcadian-rhythms
October 23, 2019

Arcadian Rhythms Eurorack Module

CLICK HERE TO BUY Arcadian Rhythms is an arcade button module that can be used to trigger drums, envelopes and other events in a Eurorack system. […]
Do you like it?188
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August 2, 2019
Synthrotek-MDIV-Eurorack-Clock-Divider-Multiplier
August 2, 2019

M/DIV Clock Multiplier & Clock Divider

CLICK HERE TO BUY The M/DIV is a CV-controlled dual clock multiplier/divider with tap tempo, ideal for complex generative patching, sequencer timing and unique rhythm generation. […]
Do you like it?97
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June 7, 2019
Limaflow - Motomouth Formant Filter
June 7, 2019

Limaflo – Motomouth Formant Filter for Eurorack

CLICK HERE TO BUY Motomouth is an analogue 3-Band, Sedra + Espinoza Bandpass Filter (DABP) with resonant frequencies that are tuned to the same resonant frequencies […]
Do you like it?60
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May 23, 2019
Rat King Modular - Random Sequencer Eurorack Module
May 23, 2019

Random Sequencer – Rat King Modular

CLICK HERE TO BUY The Random Sequencer generates quantized random or 8 or 16 step randomly generated sequences, which is great for quickly (and musically) starting […]
Do you like it?27
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May 23, 2019
USB Power - Final Build
May 23, 2019

USB Power is here!

USB Power is a light-duty Eurorack power supply designed for mini systems, for testing, and for portability. Plug in a single module, a flying bus cable […]
Do you like it?28
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