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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
✕
September 10, 2017
TST Eurorack Module
September 10, 2017

TST Eurorack Module!

Buy the TST Completed module, Kit, and PCB HERE Test your modules safely without reaching into your case! The TST has two keyed 16-pin headers on […]
Do you like it?28
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August 7, 2017
August 7, 2017

Division 6 Business Card Sequencer

The Division 6 packs a lot of sequencer into a tiny package! This 16-step circuit can work as a sequencer or as a handheld keyboard. Features: […]
Do you like it?29
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August 7, 2017
August 7, 2017

Division 6 Dual Mini Sequencer for Eurorack

This module gives you two handy little sequencers behind one Eurorack panel. Why would you need more than one sequencer? Why would you need mini sequencers? […]
Do you like it?36
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June 12, 2017
MST 4HP Buffered Multiple
June 12, 2017

MST 4HP Buffered Multiple Released

The MST ’07 Buffered Multiple is the original buffered mult design invented by George Mattson in 2007. It’s a precision mult that is perfect for 1V/O […]
Do you like it?20
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April 10, 2017
April 10, 2017

Riblets are here!

The Riblet is a small circuit board that allows you to connect any length SoftPot to your MST Ribbon Eurorack module. Screw, glue or stick this […]
Do you like it?23
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April 3, 2017
April 3, 2017

Introducing the Synthrotek Verb!

The Synthrotek Verb is a reverb module like no other. This three PT2399 unit offers a warm tape saturated spring reverb like sound but with the […]
Do you like it?26
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March 6, 2017
March 6, 2017

Roboto now available!

Do you desire to have a vocoder, pitch shifter, speak-n-spell effect, vibrato, 8-bit modulator and a bit crusher sounding module all in a lo-fi heavily CV […]
Do you like it?82
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February 17, 2017
February 17, 2017

Ribbon Controller available!

The MST Ribbon module brings control to a whole new surface and fills out an already generous selection of modules designed by George Mattson. The Ribbon […]
Do you like it?88
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February 3, 2017
February 3, 2017

RND Module Now Available!

  Introducing the Synthrotek RND! It’s like math.random() for modular gear! This handy module is a feature rich random voltage generator that is shallow and super […]
Do you like it?61
0 Read more
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