Modulation & Random envelope / cv envelope generator / 12 HP ⇣ ENVELOPE presents a classic ADSR/AR envelope generator elevated by advanced controls and shaping capabilities. Tailored for crafting diverse envelopes, it offers precise adjustments that result in dynamic control voltages, adding an organic and captivating dimension to your sounds. 1/3 key features ADSR/AR Envelope CV Control over all Stages Attenuator per CV Input Shape Control for Attack, Decay and Release Internal Envelope-Controlled Amplifier Loop Function Internal Modulation 0V to +10V Range specs & downloads width: 12 HP depth: 30 mm power: 56 mA @ +12V / 36 mA @ -12V documentation videos description / manual The length of each ADSR stage can be changed with four slider potentiometers. Times range from 1ms in FAST MODE to half a minute in SLOW MODE. The FAST MODE allows a very fine adjustment of short envelopes, which is especially handy for creating percussive sounds. There are dedicated SHAPE potentiometers for the ATTACK, DECAY and RELEASE stages. With these you can switch from exponential to logarithmic response curves. Each phase has its own CV input to control its timing. Dedicated attenuators allow you to adjust how much voltage is applied. The slider LEDs indicate if a voltage is being processed and if the timing of a stage is being changed. If nothing is patched to the CV inputs, the attenuators suppress the portion of each stage's voltage that is passed to the OUTPUT jack. This allows you to quickly change the envelope without changing the original slider settings. In addition, there is a CV input RF CV to control all rising and falling stages at once (without LED indication). ENVELOPE also has an internal GATE and MODULATION source. When the LOOP/RESET switch is set to LOOP, the envelope is internally triggered at a rate set by the MOD RATE pot. It also allows you to internally apply a TRIANGLE or SQUARE-WAVE LFO to any stage when nothing is patched to the CV inputs and the attenuators are turned clockwise. The rate of the LFO is also controllable with the MOD RATE pot. You can change the waveform of the LFO with the TRI/SQU switch. Setting the LOOP/RESET switch to RESET will reset the internal LFO each time a gate or trigger is received at the TRIG/GATE input. The TRIG/GATE switch determines whether a trigger or gate signal should be applied to the TRIG/GATE input. When you set the switch to TRIG, the envelope type changes to ATTACK and RELEASE only. If you need an envelope that is easy to change, this is the correct setting. GATE mode activates a full-featured ADSR envelope with many adjustment options. In addition to the standard envelope output ENV OUT, there is also an inverted output ENV INV. The voltage ranges of the ADSR outputs are about 0V to +10V for the normal output and 0V to -10V for the inverted output. To complete the packed feature list, ENVELOPE is also equipped with an internal VCA, which is internally connected to the envelope output. Simply connect an audio source to the VCA IN input and you'll have an envelope-controlled signal available at the VCA OUT jack. ENVELOPE QUICK START GUIDE: ENVELOPE_QUICK_START .pdf Download PDF • 710KB prev Up next

Modulation & Random lfot / touch control lfo / 3 HP ⇣ Low Frequency Oscillator featuring an extensive frequency range and a tactile touch control capability. 1/3 key features LFO with 3 Waveforms Sine, Square and Pulse waves LFO FREQUENCY potentiometer LFO RANGE switch Adjustable Pulse width Two touch plates to play the LFO HOLD function PUSH function Wrong polarity protection Skiff friendly specs & downloads width: 3 HP depth: 28 mm power: 49 mA @ +12V / 47 mA @ -12V documentation videos description / manual The LFO provides three voltages in shape of Sine, Square and Pulse waves. It can be used as a control voltage, clock source or patched into the audio path for drum synthesis. The frequency and the frequency range can be controlled by turning the frequency knob and rate switch. Additionally the width of the pulse wave may be manually adjusted. An LED indicates the current speed of the LFO. On the bottom of the panel you will find two touch plates. Using these you can “play” the LFO and become a part of the circuit. By pressing your finger onto the HOLD plate you will be able to stop and reset the LFO cycle. It will start over again when the finger is released. The second touch plate PUSH is altering the frequency of the oscillator. Roll your finger from the top side of the plate to the bottom and the rate will be increasingly speeded up. Or directly press you finger an all plate parts and go crazy! After releasing your finger from the PUSH plate the frequency will smoothly recover to its original speed set by the frequency knob. prev Up next

Oscillator yaksha´s fate / mutable instruments "rings" adaption / 8 HP ⇣ In this rendition, the emphasis was placed on showcasing all the adjustable parameters prominently while concealing those that could impact tuning and harmonics. This design approach allows you to immerse yourself in uninhibited live performance, without the concern of inadvertently altering frequency or structure, ensuring a seamless experience for both you and your audience. 1/3 key features Please check out the original module by Émilie Gillet which is an all time Eurorack classic already Illuminated Yaksha´s Fate Logo Wrong Polarity Protection specs & downloads width: 8 HP depth: 38 mm power: 125 mA @ +12V / 12 mA @ -12V documentation videos description / manual It has all the functionality of the original module except for the two Outputs Odd/Even, Frequency CV (also Fine Tune) and Structure CV (Harmony). You may switch Filter CV or Decay CV to control Harmony via jumper though. The two outputs Odd and Even are mixed together on the OUT jack, but you can fade from one to the other using the Partial Knob. This way you get an additional sound shaping option and some kind of trigger control when two or four notes polyphony is selected. In contrast to the original Yaksha´s Fate will rather act as a VCO producing a constant tone (through very fast trigs) if you plug a CV source into 1V/OCT without a trigger at the TRIG input. Released under cc-by-sa-3.0 license: Pichenettes Mutable Instruments prev Up next

ST Modular has garnered acclaim for its DIY Eurorack Modules, which empower users to assemble personalized modular synthesizers using supplied PCBs and components they acquire themselves. ​ ST Modular has garnered acclaim for its DIY Eurorack Modules, which empower users to assemble personalized modular synthesizers using supplied PCBs and components they acquire themselves. The array of modules available spans oscillators, filters, sequencers, mixers, LFOs, envelope generators, effects., but also desktop synthesizers and tools, each meticulously designed by ST Modular to offer exceptional versatility. These modules cater to an extensive range of sound manipulation and modulation possibilities. The origin of these modules traces back to a personal hobby managed by an individual enthusiast. The expertise in electronics and circuit board construction essential for bringing these projects to life was acquired through a blend of book learning, hands-on breadboarding, and engaging conversations with fellow synthesizer enthusiasts. Until today, ST Modular is operated as a non-profit small business, utilizing all revenues to cover costs for prototyping new modules and synthesizers. ST Modular doesn't directly sell its designs, but instead provides licenses to third parties for manufacturing and distribution. Alongside the sale of PCBs, panels, and DIY kits, certain partners of ST Modular also provide fully assembled modules. Stefan Tretau The S and T before Modular Hey! I am Stefan — a multi-faceted individual acknowledged for my roles as a devoted father, a loving husband, and a passionate musician. My journey in the world of music commenced during the early 2000s, where I found myself captivated by the realm of electronic music. Armed with a selection of electronic instruments, including a TB303, MC307, Micro Modular, and Xbase09, I embarked on a creative exploration that would come to define my artistic identity. In due course, my musical endeavors expanded beyond personal exploration. Live performances became an integral part of my artistic expression, and I successfully transitioned to releasing music on esteemed labels such as Heimatmelodie, Karmarouge, Fortek, Broque, and Night Drive, etching my presence into the electronic music landscape. Sometime around 2010, I took the step of founding my own label, ST RECORDS . The journey began with the vinyl release "Whatever Happened," and to this day, it remains the platform through which I share my music with the world. Yet, my interests transcended performance and production, leading me down the path of curiosity. In 2015, a pivotal juncture in my journey arrived when I grasped the intricate mechanics behind sound generation, particularly concerning Schmitt Triggers and Operational Amplifiers. This understanding marked the genesis of a fresh chapter, propelling me into a phase of self-guided learning encompassing circuit board design, soldering techniques , and culminating in the construction of my first DIY effect pedals. The allure of the "do-it-yourself" ethos grew stronger, prompting me to deepen my knowledge, craft my own schematics, and experiment with prototypes on breadboards. As my passion for modular synthesizers burgeoned, I embarked on a new venture in 2017 — designing my own Eurorack modules, such as "Switched", "Triple Tom", "Cyllene" and "Franz". The positive reception and subsequent demand from the DIY community inspired me to take the next step. Recognizing the enthusiasm for recreating these modules, I made front panels and circuit boards accessible through pushermanproductions.com. This marked the genesis of ST MODULAR , an endeavor driven not by commercial aspirations but by a desire to innovate within the modular synthesis landscape. Unlike the usual practices in the industry, ST Modular is more about pursuing a personal artistic vision for me than fulfilling the wishes and ideas of others. I prioritize uncharted functionalities and distinctive designs, unfettered by market trends. This approach enables me to cater to my own artistic instincts while fostering a sense of community engagement among fellow enthusiasts. ST Modular remains a project driven solely by passion, devoid of profit-oriented objectives . Witnessing individuals create music using modules I've conceived brings me immense satisfaction, encapsulating the essence of artistic camaraderie. The crux of my journey lies in the harmony of music, where notes and circuits converge to create a symphony that resonates beyond temporal confines. Thank you for visiting these pages, Stefa n Up

Mixer & VCA matrico / 3x3 bipolar matrix mixer with sum out / 10 HP ⇣ There are many creative ways to use matrix mixers for CV and audio processing. MATRICO is a full-featured matrix mixer in a small footprint that provides instant access to this modular creativity. 1/3 key features 3x3 Matrix Mixer Bipolar or Unipolar Input LED Low HP Size Performance-Orientated Mixing Wrong Polarity Protection specs & downloads width: 10 HP depth: 30 mm power: 35 mA @ +12V / 25 mA @ -12V documentation videos description / manual MATRICO has three inputs I - III which can be routed to any of the three outputs A-C. For each connection between I-III and A-C there is a separate potentiometer which acts as an attenuator/attenuverter. For each output A-C you can decide whether the signals should be processed unipolar or bipolar. The LEDs indicate whether a positive or negative signal is present at the respective input. They only show input signals, as it is so much easier to identify a signal to be mixed with other signals. There is also a sum output with LEDs that provides a mix of all outputs. prev Up next

Oscillator radio / analog fm radio with autoamtic cv channel search / 4 HP ⇣ RADIO is an analog FM RADIO with an automatic channel-search functionality. It supports a frequency band of 83,5 - 114 MHz, has a built-in frequency control with signal quality evaluation and runs with automatic noise suppression. It is a never ending sound source and a great companion for your Eurorack sampler or audio mangler. 1/3 key features Analog FM Radio Automatic Channel Search with Signal Quality Evaluation Automatic Noise Suppression 83,5 - 114 MHz Bandwidth CV Control over Channel Search or Reset Volume Control Gain Stage at the Output Illuminated ST Modular Logo specs & downloads width: 4 HP depth: 28 mm power: 18 mA @ +12V / 10 mA @ -12V documentation videos description / manual By pressing the buttons CH- and CH+ you can activate the automatic channel-search function up or down the frequency range. If a signal passes the internal quality evaluation the search is ended and the radio signal is available at the OUT socket. If you want to change to another radio station channel-search is also accessible via CV. Simply patch any gate or trigger signal into the inputs CH- and CH +. Two LEDs indicate of a trigger or gate signal is applied. Channel changes can be really quick, if there are good signals close to each other on the frequency band. If the signal is bad the search automatism may need more time to find good signals leading to slower channel changes. The RST button resets the search to the lowest frequency. After reset you will receive some really nice radio noises until you proceed to the next proper channel again. You can also route the CH- CV input to RST via jumper on the back of the PCB. The module has two volume buttons for quick level adjustments. Additionally it has an active GAIN stage adjustable via trimmer in order to raise the maximum volume to modular levels. The patch-cable connected to the OUT socket acts as an antenna. It´s best to choose a long cable and move it around until you receive the best signals. prev Up next

Utilities & PSU cv pan / stereo panning module / 6 HP ⇣ CV PAN is a traditional CV panning module that is used to distribute a signal manually or automatically to both stereo channels. 1/3 key features Stereo Pan CV Input with Attenuator LED Indication Stereo Input & Output Skiff friendly Wrong polarity protection specs & downloads width: 6 HP depth: 30 mm power: 35 mA @ +12V / 21 mA @ -12V documentation videos description / manual CV PAN is a straightforward CV panning module featuring stereo input and output capabilities. When a stereo signal is connected, you can adjust the PAN knob to distribute the signal evenly to both the L and R outputs when in the center position, or shift emphasis to either the left or right channel by turning the knob accordingly. If a mono signal is used, the left input is automatically routed to the right channel, effectively converting the mono signal into a stereo output. To enable automated pan control, apply CV to the CV input. A complete pan change can be achieved by applying +5V. Adjust the CV input attenuator to the left to reduce the CV level for smaller panning movements. The output sockets deliver the processed stereo signal, ready for routing to other modules. CV PAN QUICK START GUIDE: CV_PAN_QUICK_START .pdf Download PDF • 390KB prev Up next

Mixer & VCA svca / stereo vca with stereo audio thru / 6 HP ⇣ SVCA is a High Performance Stereo Voltage Controlled Amplifier with plenty of gain to boost signals. It is great to split your stereo signal for further audio processing and simultaniously change the amplification via CV to create complex harmonics from a single stereo source. 1/3 key features Stereo Voltage Controlled Amplifier Offset Control CV Attenuator Original signal is routed to THRU out L & R (buffered) Wrong polarity protection Skiff friendly specs & downloads width: 6 HP depth: 30 mm power: 50 mA @ +12V / 22 mA @ -12V documentation videos description / manual When you connect an audio source to the L IN and R IN jacks, it will be immediately sent to the THRU jacks, allowing you to apply further stereo processing to your original signal. Simultaneously, the signal is directed to the Stereo VCA. Within this section, you have the ability to manually adjust or modulate the audio's volume using the CV jack. Rotating the CV Potentiometer will reduce the strength of the incoming CV signal. By using the Offset Potentiometer, you can establish the point at which the amplifier begins to influence the signal's level. prev Up next

Utilities & PSU uit / trs balanced output / 4 HP ⇣ UIT is a balanced output module that supplies an active output on the cold terminal of the TRS jacks, producing the same signal as the hot terminal but phase-inverted. This allows stable driving of long cables at low noise levels. It is based on high-performance, fully differential operational amplifiers and laser-trimmed thin-film resistors that exibit low noise and distortion and a wide output swing. 1/4 key features TRS Balanced Output Low Noise and Low Distortion Headphone Output Volume Control Phantom Power Protection PCB Outputs for Case Mounted Jacks Wrong polarity protection specs & downloads width: 4 HP depth: 35 mm power: 31 mA @ +12V / 25 mA @ -12V documentation videos description / manual This module offers two TRS 6.3mm jacks that provide the BALANCED OUTPUT signal and a TRS 3.5mm HEADPHONE OUTPUT. Both have dedicated VOLUME potentiometers with +6dB gain. Two LEDs indicate the level of both incoming signals. The left input is normalized to the right input if there is no signal present. The outputs are protected against unwanted phantom power voltages. There are also PCB outputs available if you want to solder case/cabin mounted output jacks directly to the UIT PCB. UIT is supposed to be the last module in your modular chain and connects the modular world with any other studio or stage input equipment. prev Up next

Utilities & PSU pow! / usb power supply unit / 3 HP ⇣ POW ! is a 3HP USB Pow er Supply Unit for Eurorack. 1/3 key features USB PSU for Eurorack 300mA +12V 150mA -12V 500mA +5V from USB On/OFF Switch LED indication Skiff friendly specs & downloads width: 3 HP depth: 25 mm power: +5V USB-C Power documentation videos description / manual With this compact module, you can conveniently energize your Eurorack modules using any +5V USB power source. Just plug in a C-Type connector to the USB jack, and you'll have a generous 300mA +12V and 150mA -12V available through the 2x5 male header on the PCB's underside. Remember to have a power cable with 2x5 female connectors at both ends. Control the power flow with the built-in switch, with an LED indicating the current status. Tailored for modest power needs in compact setups, this Power Supply Unit is designed to accommodate one or two modules in small cases. prev Up next

1U Module ap / cv gate swap & switch / 14 HP ⇣ AP can be used to switch signals on and off or sw ap them between two destinations. 1/3 key features Swap & Switch CV Gate activates Switch Manual Switch LED Indication Available in Intellijel Format Skiff friendly specs & downloads width: 14 HP depth: 30 mm power: 19 mA @ +12V / 14 mA @ -12V documentation videos description / manual When a gate signal is ap plied to the GATE input IN B is connected to OUT A and IN A is connected to OUT B. When the gate signal is low, IN A goes to OUT A and IN B is connected to OUT B. You can also switch the signal manually using the latching switch in the middle of the module. If nothing is connected to IN A, +5V are provided at the active output socket. This way you can use AP as a manual gate or as an alternating gate trigger for two targets. prev Up next

Oscillator alstaden / analog waveshaping oscillator / 16 HP ⇣ ALSTADEN is your source for harsh and harmonically rich sounds. It is a newly developed waveshaping tone generator and resembles the secondary oscillator of the semi-modular synthesizer „EUPHORIA“. 1/3 key features Analog Oscillator with 5 Waveforms CV Waveshaper and VCA EQ and External Inputs Level-Potentiometers Linear and Exponential FM specs & downloads width: 16 HP depth: 30 mm power: 75 mA @ +12V / 65 mA @ -12V documentation videos description / manual The waves are formed by a combination of diode clipping and folding of the waveform by adding mirror images of the upper and lower parts of the waveform. This creates more high harmonics and interesting timbral variations. It also features an equalizer, which is quite unusual for oscillators, but offers more sonic possibilities. The oscillator module offers five different waveforms WAVE A, WAVE B, PULSE, SUB and SINE. The level of the individual waveforms can be adjusted with sliding potentiometers. The range of the levels depends mainly on the gain you set during calibration. Distortion can easily occur in the upper positions of the sliders if you have set the gain high. The pulse width of the PULSE waveform can be changed manually with the PULSE PWM knob. There is also a CV input CV PWM with its own attenuator to control the pulse width via CV. At the heart of this oscillator are the two waveshapers WAVE A and WAVE B. Harmonics are added by wavefolding and can be changed by turning the SHAPE A and SHAPE B knobs. Additionally there is a CV input CV SHAPE A1 and CV SHAPE B1 with an attenuator each for voltage controlled wave folding. WAVE B has a second CV input without attenuator that allows even more control over the wavefolding state. The SUBOCTAVE has two stages of -1 and -2 octaves. Select your preferred division with the help of the SUB -1 and SUB -2 on/off switches. Unexpectedly, you can equalize the output of the oscillator with the TONE control. It accentuates either low or high frequencies of all waveforms before they are fed to a internal VCA. The INTERNAL VCA can be controlled via the ENV IN socket. Patch any CV here to change the level of the main output. Additionally, there is also a FM input. You can apply exponential or linear FM by feeding any (preferably high frequency) voltage into the FM input. Select an FM type with the EXP/LIN switch. If you set the switch to the middle position, no FM will be applied. V/OCT is the input for the application of a pitch CV. The pitch can be controlled manually with the PITCH and FINE potentiometers. EXT IN A and EXT IN B are audio inputs that allow you to use the oscillator as a waveshaper for external signals. When a jack is connected to these inputs, the corresponding internal waveform is switched off. The external signals will also be routed through the level potentiometers, EQ and VCA. Further details can also be found in the ALSTADEN QUICK START GUIDE: ALSTADEN_QUICK_START .pdf Download PDF • 1.70MB prev Up next