Products – Thonk – DIY Synthesizer Kits & Components

This is a full DIY Kit to build the Shakmat Modular – Bishop’s Miscellany. The kit includes the latest ‘main branch’ firmware – v1.2, we also offer the alternate v2 firmware as an additional purchase.

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Features:

Dual Stepped CV / Gate Recorder
Variable length sequences (up to 32 steps)
Shift parameter scanning differents segments in your original sequence.
AB switch allowing to record two different 32 steps sequences.
Random value generator very handly to create random loops or to play sequences randomly
Cut function hacking the gate out 1 for more dynamic phrases
CV inputs for Length and Shift functions
Gate inputs for all the switch functions (Record, AB, Cut and Random)
User replaceable firmware chip
High quality metal potentiometer with DJTT double rubbered injected knobs
Skiff friendly (22mm deep)
12 HP Wide
20mA on +12V and 0mA on -12V

All build documentation can be found here – http://www.shakmatmodular.com/support.html

Penrose is a simple CV quantizer DIY kit for the eurorack format. It takes an incoming continuous CV voltage and converts it to the nearest note in a scale. Active notes can be selected with the 12 buttons. You can use it to tune the output of your analog sequencer, as a semi random melody generator, for fast chiptune arpeggios and much more.

It comes as a complete kit with all needed parts to build it. That includes a multi colour aluminum frontpanel, high quality jacks and illuminated bi-color push buttons.

The project is open source, so the schematic and source code is available.

Specs

Current draw: +12V 60mA | -12V 2.5mA
Width: 6HP Depth: 40mm
CV input voltage: 0-10V
CV output voltage: 0-10V

More information

Manual

Assembly guide

16222804951_934fa7fa55_h

Demos

Mal-2 is set to a slightly modulated random walk that controls a penrose quantizer playing a braids fold osc. The fold value is controlled by another Mal-2 module set to a slow random modulation. NAVA 909 makes the beats and syncs the quantizer and a sequencer playing the bassline on a saw OSC. Drum mutes are done by hand.

Product Description

This complete kit comes with all parts needed to build a complete Mal-2 module:

Frontpanel
PCB
Ribbon power cable
All electronic parts
Pre-programmed AVR microcontroller

Overview

Mal-2 is a random signal generator mainly intended as CV modulation source. It has 2 modes of operation to provide you with smooth random goodness. Imagine Eris herself lends you a third hand to keep your patches interesting.

In the first mode the CHANGE knob morphs from a cubic interpolated (sine like shaped) random signal to a random walk function that could make a wallstreet broker delirious with joy.

In the second mode the CHANGE knob sets the self similarity. On the minimum setting the signal is completely random. On the maximum setting the random sequence is locked to a repeating, identical 8 step sequence. In between the sequence seamlessly morphs to new shapes over time.

This gives you a random CV where you can shape the bounds in which the chaos unfolds and goes far beyond a slew limited white noise.

Specs:

6 HP
12 bit CV output
through hole components DIY kit
Random gate output
CV inputs with attenuverter for both knobs
super slow cycles times up to lower audio range
+12V 60mA | -12V 5mA

More information

Manual

Assembly guide

Chopping kinky is a voltage controllable, dual channel Wavefolder.

A wavefolder converts simple signals into richer and more dynamically changing ones. In contrast to a filter, wavefolding adds harmonic content to the waveform. It works by amplifying the waveform until it begins to saturate, then rather than clipping, the waveform gets folded back in on itself.

Folding

Each of the module’s two channels has a unique wavefolding profile. At each input there are two CV inputs for controlling the level of waveshaping including one that passes through an attenuverter.

Chopping Kinky Block Diagram

The CHOPPING KINKY is DC coupled allowing it to be used for both CV and audio duties; to generate harmonics on an audio signal or kinking LFOs and envelopes.

SPECS
– Current needs: +12V: 65mA, -12V: 55mA
– Width: 8 HP
– Depth:30mm (inc power connector)
– View in Modular Grid

Assembly instructions
Schematics PDF | User Manual

THIS IS A FULL DIY KIT

wavemult_detail2

It contains all components required for a complete build, right down to rack screws and power cable. We selected and used the high quality parts as specced by Random*Source. Random Source have created a full step by step build doc for this project.

Most of the components are already soldered! The back board is already fully populated and soldered with SMD components, this is therefore a very quick build that mainly requires soldering of pots, jacks, trimmers, LEDs and headers.

SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

“Serge Modular” is an analogue modular synthesizer system developed by French composer and electronic designer Serge Tcherepnin in the 1970s at The California Institute of the Arts. Serge’s vision to create a “people’s synthesizers” led to a unique modular music system with an iconic design.

In collaboration with and under licence from Serge Tcherepnin, Random*Source offers a range of Serge modules, combining the original Serge circuits with the advantages of today’s technology. The modules on this page are in Eurorack (3U) format – modules in the classic Serge dimension (“4U” panel height) and the typical banana jacks can be found here.

SERGE WAVE MULTIPLIERS (VCM)

The legendary Serge Wave Multipliers (VCM) are designed to dynamically add new harmonically-related overtones to an input waveform. Accroding to the 1982 catalogue, they “alter the timbre in exciting new ways, producing interesting alternative forms of signal processing which are unique in the Serge Modular Music System. Since there are three entirely separate and different types of Wave Multipliers in this module, an enormously varied palette of new effects can be synthesized.”

The top section offers two different modes, selected by a switch. In the “HI” position, the module functions to “square-up” an incoming signal, with a rounded flattening of the signal peaks, somewhat similar to overdriving a tube amplifier (with voltage control!). In “LO” mode, the module is a linear gain controlled VCA. This is useful for various functions such as amplitude modulation and for gating signals into the other sections.

The middle section generates a sweep of the odd harmonics (1, 3, 5, 7, 9, 11 and 13th) when a sine wave is applied to its input and the FOLD knob is turned up or a control voltage is swept from low to high. This effect is similar to overblowing a wind pipe closed at one end. A second input is included to allow two signals to be mixed before processing. This module can be used to explore timbral areas beyond the range of ring modulation.

The bottom Wave Multiplier performs non-linear wavehaping known as full-wave rectification, but with sophisticated level-compensating conditioning as well. The circuit uses three full-wave rectifier sections linked in a very refined controllable format. Sweeping the VC input over its range will produce a smooth timbral transition using the even harmonics (second, fourth, and eighth). Many other partials are present in this basic sound, however, and the sonorities are very rich and varied. The white output is a “squared up” version of the black one, resembling an harmonically enhanced pulse width modulation.

The Random*Source version of the Serge Wave Mulitpliers for Euro is a licensed and authorized adaption of the original Serge design, using best parts available today (e.g. Burr-Brown op-amps, C0G capacitors up to 220N) for optimum audio performance.

Now – for the first time ever and licenced by Serge – the Wave Multipliers are available as DIY (SMT) kit for Euro.

Some details of the Random*Source Serge VCM module:

Under licence from Serge Tcherepnin
Main pcb in SMT, containing almost all components (reflow soldered in)
Premium parts used (4 Burr-Brown op-amps, C0G capacitors up tp 220N, Wima 1uF …)
No obsolete parts needed
No wiring needed
Eurorack format (3U), 18 hp
Power consumption: 45mA @ +12V, 40mA @ -12V
Module depth: < 35mm (1.5″)

Build documentation – http://randomsource.net/docs/RandomSource_Serge_VCM_Euro.pdf

THIS IS A FULL DIY KIT

It contains all components required for a complete build, right down to rack screws and power cable. We selected and used the parts as specced by Random*Source. Random Source have created a step by step build doc for this project

SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

SERGE VARIABLE SLOPE FILTER (VCFS)

The Serge Extended Variable Slope filter (VCFS) is a unique filter of the Serge system, covering a wide range of sonic character. According to the 1983 Serge catalogue, the “VARIABLE SLOPE VCF (VCFS) allows the amount of filtering to be dynamically controlled, from barely perceptible filtering to highly resonant, sharp cut-offs. With the variable slope control in the center position, the VCFS acts as a typical flat-response VCF, with high, low, and band~pass outputs available simultaneously. The slope of the cut-off is 12 db/octave. As the control is moved toward the maximum position, the resonance of the filter increases, so that the cut-off becomes sharper.”

Now – for the first time and licenced by Serge – the VCFS is available as DIY kit for Euro.

Build documentation: Serge VCFS BOM / Build doc

Under licence from and in cooperation with Serge Tcherepnin
Designed for High-end VCAs (THAT2180C)
The kit is supplied with the following capacitors as per the Random Source BOM
- Ceramic Bypass Caps
- C0G caps for positions C5, C6, C9
- Polystyrene caps for positions C7, C8
- Wima Film cap for position C10
- Nichicon Gold Electrolytic cap in position C1, C2
New Q knob for increased resonance
No wiring needed
Eurorack format (3U), 14 hp
Power consumption: 40mA @ +12V, 40mA @ -12V
Module depth: < 40mm (1.5″)

THIS IS A FULL DIY KIT

Serge_SSG_back_500c

It contains all components required for a complete build, right down to rack screws and power cable. We selected and used the high quality parts as specced by Random*Source.

SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

SERGE SMOOTH & STEPPED GENERATOR (SSG)

The Serge Smooth & Stepped Generator (SSG) is a complex multi-functional module which can be patch programmed to provide various slew and sample functions both for audio and CV signals. It is one of the essential Serge modules.

The Smooth section will place a postitve and negative slew on input voltage transitions for lag effects, voltage controlled portamento and for low frequency filter applications.” In Cycle-mode (cycle jack patched to the input), the Smooth side “will oscillate yielding a voltage controlled triangle wave LFO. A high level into the HOLD input will enable the Smooth Function to be used as a track-and-hold circuit with voltage controlled slew rate.

The Stepped function can be used as a sample-and-hold with voltage controlled slew rate limiting. In Cycle mode, a pulse applied to the Sample input will generate complex staircase waveforms for control voltage applications and for use as audio signals.

The Coupler is an internal comparator which compares the output levels of the Smooth and the Stepped Generators. This output is useful for generating complex control voltages or random voltages.

The Random*Source version of the Smooth & Stepped Generator for Euro is a licensed and authorized adaption of the original Serge design that provides an increased audio range of the Smooth Generator and a bipolar (“hot”) Coupler output in addition to the regular (unipolar) Coupler output.

Now – for the first time ever and licenced by Serge – the SSG is available as DIY (SMT) kit for Euro.

Build documentation: Serge SSG BOM / Build doc

Some details of the Random*Source Serge SSG module kit:

Under licence from Serge Tcherepnin
Main pcb in SMT, containing almost all components (reflow soldered in)
No obsolete parts needed
No wiring needed
Eurorack format (3U), 18 hp
Power consumption: 30mA @ +12V, 30mA @ -12V
Module depth: < 35mm (1.5″)

THIS IS A FULL DIY KIT

DUSG3 It contains all components required for a complete build, right down to rack screws and power cable. We selected and used the high quality parts as specced by Random*Source.

SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

SERGE DUAL UNIVERSAL SLOPE GENERATOR MK2 (DSG)

DUSG4 The Serge Dual Universal Slope Generator (DSG) is probably the most versatile module of a Serge Modular system, incorporating a wide range of functions for both CV and audio. Some functions for which one Slope Generator can be used: VC Transient Envelope Generator, VC LFO, VC Portamento device, Envelope Follower (Detector), VC Pulse Delay (Monostable), Sub-Harmonic Series Generator (Divider), Audio Oscillator with variable waveform symmetry (saw to triangle), Non-Linear Audio Processor (low-fidelity VCF).

From the catalog: “The Universal Slope Generators are unity gain voltage followers with voltage controllable slopes. The range of control is exponential, extremely wide, and the Rise and Fall times can be controlled independently. The range of the Slope Generator is from sub-sonic to high audio frequency. Trigger inputs and trigger outputs allows each section of this dual module to function as a transient (envelope) generator, pulse delay, or in a “cycling mode” (to produce an LFO or clock). Since the Rise and Fall times are voltage controllable, this adds another dimension to the above functions.

The DSG mk2 version has been optimized for audio performance and speed/precision. The top section covers a frequency range up to more than 10kHz. It also offers improved tracking and some temperature compensation.

Now – for the first time and licenced by Serge – the DSG is available as an updated (mk2) version kit for Euro.

Build documentation: Serge DSG mk2 euro BOM / Build doc

Some details of the Random*Source Serge DSG kit:

Under licence from and in cooperation with Serge Tcherepnin
Separate VC inputs for Rise and Fall
improved tracking (up to 4 octaves)
Pulse out with 50% duty cycle in the top
Uses selected audiophile parts for superior audio performance (up to >10kHz)
DSG mk2 board in SMT, manufactured in Germany
No wiring needed
Eurorack format (3U), 26 hp
Power consumption: 90mA @ +12V, 80mA @ -12V
Module depth: < 40mm (1.5″)

THIS IS A FULL DIY KIT

SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

SERGE VARIABLE RESONANCE FILTER (VCFQ)

The Serge Extended Variable Resonance filter (VCFQ) is probably the most famous filter of the Serge system and one of the essential Serge modules. It is an excellent, extremely versatile general-purpose VCF that provides simultaneous low-pass, high-pass, band-pass and notch (band-reject) outputs combined with unique flexibility. Its trigger in, LOW mode and self osciallation allow a variety of uses from Oscillator to VC processing.

Now – for the first time ever and licenced by Serge – the VCFQ is available as DIY kit for Euro.

Build documentation: Serge VCFQ BOM / Build doc

Thonk Kit Build Notes: Here

Some details of the Random*Source Serge VCFQ module kit:

Under licence from Serge Tcherepnin
Designed for High-end VCAs (THAT2180)
No matching of transistors required
No wiring needed
Eurorack format (3U), 14 hp
Power consumption: 52mA @ +12V, 52mA @ -12V
Module depth: < 40mm (1.5″)

The Random*Source Kit contains:

Color printed front panel, 2mm, cnc made in germany
1 Serge VCFQ Euro pcb (through-hole, no components mounted)
1 matching component pcb
ALL required parts right down to power cables and rack screws

THIS IS A FULL DIY KIT

It contains all components required for a complete build, right down to rack screws and power cable. We selected and used the high quality parts as specced by Random*Source. This kit contains high precision 0.1% resistors as specced in the Random Source documentation.

SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

The Serge Divide by N Comparator (NCOM) is a rare, much sought-after and very essential Serge module covering a number of functions: comparator, voltage-controlled pulse divider, and voltage-controlled staircase generator.

The ÷N COMPARATOR consists of two sections – a comparator (right side) and a voltage-controlled pulse divider (left side). The ÷N output of the pulse divider sends out a pulse on every N-th comparator pulse where N is a number from 1 to 31. N can be (pre-)set with the divider’s control knob (1 ÷N) and can by changed with a control voltage. The VC knob (attenuator)on the bottom of the left side determines how much effect the control voltage has on “N”. In addition, the divider generates a staircase waveform with N steps. This can be used to produce whole-tone steps when run into the 1V/Oct input of a VCO or as a stepped control voltage to change for instance the cutoff of a filter.

The comparator provides a number of useful “housekeeping functions”: Logical decisions (if the +input is greater than the -input, the output will be high, otherwise low), Level detection (whenever a variable waveform crosses the theshold, a pulse is generated ), Pulse width modulation or Rectifying a waveform (e.g. a sine or triangle wave). (More applications and info in the Build Doc).

Now – for the first time and licenced by Serge – the NCOM is available as DIY kit for Euro.

Build documentation: Serge NCOM BOM / Build doc

Some details of the Random*Source Serge NCOM module kit:

Under licence from and in cooperation with Serge Tcherepnin
Precision voltage source for improved accuracy
2 extra attenuators
No wiring needed
Eurorack format (3U), 10 hp
Power consumption: 20mA @ +12V, 18mA @ -12V
Module depth: < 40mm (1.5″)

THIS IS A FULL DIY KIT
SERGE MODULAR FOR EURORACK – Under licence from Serge Tcherepnin

SERGE RESONANT EQUALIZER (EQ)

Serge_ResEQ_side_back The RESONANT EQUALIZER (EQ) is a unique ten-band filter designed specifically for electronic sound synthesis and processing. Except for the top and bottom frequency bands, the bands are spaced at an interval of a major seventh. The Resonant Equalizer is designed to produce formant peaks and valleys similar to those in acoustic insstruments.

There are three equalized outputs: the two COMB outputs provide the sums of the two alternate filter bands, while the two top outputs are the (identical) mix of all filter bands. Please note that there is no sharp separation between the bands, moving any frequency knob will have an influence on both COMB outputs. This equalizer is special in that the bands can be set to be resonant: when the knobs are in the middle position, the response at the main EQ Output is flat. When the knobs are positioned between the 9 and 3 o’clock position, up to 12 db of boost or cut is set at the band. If the knob is set beyond the 3 o’clock position, the band will become resonant, simulating the natural resonance of acoustic instrument formant structures. Below the 9 o’clock position, increased band rejection is achieved.

The Random*Source version of the filter is a licensed and authorized adaption of the legendary Serge equalizer for Eurorack. It adds an input mixer with 2 inputs that can be built/used to attenuate or amplify/distort the input signal(s) before they are sent into the EQ and a Feedback section (knob and phase switch) which allows to feed back the output signal or the inverted output signal (depending on the Phase switch). Adding inverted feedback leads to phase cancellation effects – unlike the “normal” feedback, level decreases and the signal thins out.

Now – licenced by Serge – the legendary EQ is available as DIY kit for Eurorack.

Build documentation and Thonk Build Image HERE and ALSO HERE

Some details of the Random*Source Serge Resonant EQ module kit:

Under licence from Serge Tcherepnin
Input mixer / attenuator / amplifier
Feedback knob and Phase-switch to add normal or inverted feedback
100% through-hole
All parts included down to power cable and rack screws
No wiring needed
Eurorack format (3U), 18 hp
Power consumption: 100mA @ +12V, 100mA @ -12V
Module depth: < 38mm (1.5″)

Jürgen Haible’s WASP Filter is now available for eurorack in a dual version with some modifications and addons – including a MODE section that acts as a dynamic link between both filters. It allows to combine the filters in series or parallel or anything in between – even voltage controlled(!). Also, each side can blend from lowpass to highpass or bandpass (yes, the notch is in there, too!) creating infinite filterbank combinations. A Sync switch has been added to be able to control both side’s cutoff frequency with from the left side. The unique distortion can be configured to PRE or POST for each side. This is a (mostly) through-hole version containing very few optional SMT parts (not included).

2 Identical Haible WASP filters including distortion
Blend from Lowpass to Highpass or Bandpass
Distortion can be configured to be PRE or POST
MODE blends from serial to parallel setup – even CV controlled.
SYNC: control Cutoff of both filters at the same time
Infinite options from 4-pole VCF to Stereo filter
Massive drone machine
Complex oscillator when patched to self-oscillate
No wiring needed

Random*Source has acquired Jürgen Haible’s legacy and is the only authorized source of Haible designs.

DUAL WASP AUDIO SAMPLES

DOCUMENTATION

Build doc: Haible Dual Wasp Euro module

Front panel 22 hp, 2mm aluminum, made in Germany
All PCBs and parts for a full build included. We use the higher spec parts where they are suggested by Random Source.

THIS IS A FULL DIY KIT – ALL SMD COMPONENTS COME PRE-SOLDERED

The TRIPLE WAVESHAPER (TWS) is a non-linear modifier which can transform a sawtooth wave into a sine wave. This classic module incorporates three independent waveshapers for modifying synthesizer waveforms or for processing signals from preamplified instruments. Although originally designed as a waveshaper for early Serge oscillators, this module has been found to be a excellent modifier of electronic and acoustic sounds, and is highly recommended for subtle timbral modifications beyond the range of simple oscillator/filter patches.

The R*S version extends the classic TWS concept:

+1: An additional (4th) waveshaper has been added (right after the first / bottom waveshaper) that can be dialed in smoothly using the +1 knob. Turned down (CCW) the bottom section acts as in the original (as if that additional waveshaper would not exist). Turned up (CW) the bottom section is actually 2 waveshapers in series.
Switches to link the 3 sections – bottom to top. Using these switches all sections can be set to act in series, starting at the bottom and ending at the top, providing the combined effect of 3 to 4 waveshapers (or anything in between) using the +1 knob.
Linking only the middle and top section and turning the +1 knob up (to have 2 sections in the bottom) allows you to use the module for isntance as two independent 2-stage waveshapers (using bottom in and out for one and middle in and top out for the other) – e.g. for stereo processing.

The Random*Source version is a licensed and authorized adaption of the original Serge design.

Build documentation: Serge TWS+ euro BOM / Build doc

Some details of the Random*Source Serge TWS kit:

Under licence from and in cooperation with Serge Tcherepnin
4th waveshaper can be gradually added
perfect companion for a dsg mk2
pcb in SMT, manufactured in Germany
No wiring needed
Eurorack format (3U), 18 hp
Power consumption: 20mA @ +12V, 10mA @ -12V
Module depth: < 30mm

The Random*Source TWS+ euro kit contains:

Color printed front panel, 2mm, cnc made in germany
1 Serge TWS euro pcb (SMT, all SMT components mounted)
All parts required for the build down to rack screws and power cable
We have omitted the optional Electrolytic caps and gain trimmers, as Random Source explain these are not required under regular circumstances on the final page of the Build Document

THIS IS A FULL DIY KIT – ALL SMD COMPONENTS COME PRE-SOLDERED

SERGE NEW TIMBRAL OSCILLATOR (NTO)

The NTO is Serge’s legendary and most ambitious oscillator. It combines raw vintage sound with astonishing precison.

The new NTO by Random*Source has been developed in close cooperation with Serge. It took about 2 years to replace obsolete parts and bring the NTO to SMT with some optimizations (precision references and parts) for stability. It also features a new Pulse Out (square wave) in addition to the classic outputs.

Some details of the Random*Source NTO module:

Now with PULSE OUT
Variable oven temperature
NTO on multilayer pcb with all SMT parts soldered in.
PCBs in SMT, manufactured in Germany
Eurorack (3U) format, 18 hp

BOM / Build Documentation (PDF): Serge NTO

Kit contents

Color printed front panel, 2mm, cnc made in germany
1 Serge NTO euro pcb set (SMT, all SMT components mounted)
All other components required.

FULL KIT – Everything required to build a finished module is included, right down to power cable and rack screws. You provide the tools, time and solder.

Jürgen Haible’s legendary redesign of the Tau “The Pipe” Phaser has now (and for the first time ever) been adapted to Eurorack format. This is a hybrid version – partially SMT (with all SMT parts already professionally reflow-soldered in), partially through-hole.

The R*S version includes some additions and modifications compared to the original Haible board:

Matched transistor arrays for the filters already installed (SMT).
State of the art capacitors (C0G/NPO) for the filters already installed (SMT).
LM3046 and 2 Burr-Brown op-amps already installed.
Extended CV control: -1V/Oct and an attenuverting CV input added.
No wiring needed

Random*Source has acquired Jürgen Haible’s legacy and is the only authorized source of Haible designs.

DOCUMENTATION

Build doc: Haible Tau Euro module

Photos: With Thonk BOM as shipped

Jürgen’s original Tau Pipe flanger page

Front panel 18 hp, 2mm aluminum, made in Germany
main pcb (hybrid – only SMT parts installed)
panel pcb (includes SMT-parts) – no wiring
All other components required are included, down to power cable and rack screws. You provide the tools, time and solder.

This kit includes everything you need to build the Mkii version of the Turing Machine. You just need to provide the tools and solder. Comes with 1ohp Aluminium Eurorack panel.

Since it was launched in June 2012, the Turing Machine has become one of the most popular Eurorack DIY projects. It is a random looping sequencer that spits out basslines and melodies. It generates strings of random voltages that can be locked into looping sequences. These sequences can be allowed to slip, changing gradually over time. This module was inspired by the long history of shift register pseudorandom synth circuits, including the Triadex Muse, Buchla 266 Source of Uncertainly and Grant Richter’s Noisering.

The 2016 revised Turing Machine has many improvements:

Rotary loop length switch
Pulse out
Two boards, includes Backpack circuit to drive expanders (compatible with old Music Thing expanders)
Easier to build: a larger PCB in the same width, clock and noise circuits are more robust
Noise level trimmer & reduced voltage in noise circuit to make circuit more robust with different noise transistors
Compatible with existing expanders (Pulses, Voltages, Vactrol Mix) but not the BYTES expander.

“I am interested in perceptible processes. I want to be able to hear the process happening throughout the music.To facilitate closely detailed listening a musical process should happen extremely gradually.” Steve Reich, Music as a Gradual Process, 1968.

Power – 40ma +12v, 0ma -12v

Depth – 33mm

Width – 10hp

Modular Grid – https://www.modulargrid.net/e/music-thing-modular-turing-machine-mk-ii

Build Document – https://thonk.co.uk/documents/turing2016/

Technical support and info – https://github.com/TomWhitwell/TuringMachine

Chord Organ is a new firmware for the Music Thing Modular Radio Music module. It gives the module a completely different function. Instead of playing samples from the SD card, it synthesises chords. On this page you can buy a full kit to build a Chord Organ, or if you want to convert your Radio Music into a Chord Organ, download and configure the software here and buy a new panel here.

In these two video demos Chord Organ is providing all the oscillators you can hear:

……

Here’s another demo, using Chord Organ to drive the vocoder in Mutable Instruments Warps:

SERGE SMOOTH & STEPPED GENERATOR (SSG)

The Coupler is an internal comparator which compares the output levels of the Smooth and the Stepped Generators. This output is useful for generating complex control voltages or random voltages.

Now – for the first time ever and licenced by Serge – the SSG is available as DIY (SMT) kit for Euro.

Build documentation: Serge SSG BOM / Build doc

Some details of the Random*Source Serge SSG module kit:

Under licence from Serge Tcherepnin
Main pcb in SMT, containing almost all components (reflow soldered in)
No obsolete parts needed
No wiring needed
Eurorack format (3U), 18 hp
Power consumption: 30mA @ +12V, 30mA @ -12V
Module depth: < 35mm (1.5″)

This is a full kit to build a clone of the Classic Polymoog Resonator module. The Polymoog, an early polyphonic synthesizer, featured a 3-band “Resonator” section that allows Formant-Filtering.The filters are straight from the Polymoog schematic, the input and output buffers are based on Jurgen Haibles circuit (all credit given).

We include the 1458 op-amps for the more vintage sound.

Algorhythm is an 8-step trigger sequencer. Modules can be linked to create longer patterns. Illuminated switches provide control over looped and one-shot playback, sequential and random modes, and gate/trig output for the pattern. Loop length, pattern length, and gate/trig status can be modified during playback. All settings are automatically saved in memory and restored at startup. We are also stocking the Grayscale Binary DIY kit which is designed to work with Algorhythm.

This is a DIY kit for the Algorhythm. The kit includes everything needed to build the module, including panel, PCB, and power cable. Assembly involves soldering through-hole parts only, all surface-mount components are delivered pre-tested and pre-soldered on a sub-PCB.

Build document – http://grayscale.info/manuals/Grayscale_Algorhythm_DIY.pdf

For all technical support and more info contact Grayscale here – http://grayscale.info/modules/algorhythm-diy-kit/