KRAKONG is a duophonic generative synthesizer with a sequencer per voice, FM crossover modulation, an additional random modulation sequencer, one multimode filter with VCA, a buffered multiple and a resettable LFO. The design includes a collection of manual controls and connections for patching and CV control. "Krakong fits seamlessly into a series of well-known generative semi-modular synthesizers. It invites you to lose yourself in hours of sound design and keeps surprising you with new sounds and sequences." MAIN FEATURES KRAKONG is a duophonic generative synthesizer with a sequencer per voice, FM crossover modulation, an additional random modulation sequencer, one multimode filter with VCA, a buffered multiple and a resettable LFO. The design includes a collection of manual controls and connections for patching and CV control. It fits into a standard Eurorack case with at least 80 HP (3U). Each of the unit's two voices consists of a triangle and a square wave oscillator, a shift register sequencer, a decay envelope generator and a filter-based gate. In addition to the two synthesizer voices, which can be manually distributed in the stereo field, a third ring-modulated output of the two voices can be mixed to the main output. The tempo of all sequencers is determined by a clock generator, which can be controlled internally or synchronised externally to any voltage (audio and CV). This musical instrument has a complete structure that allows for a wide range of sonic possibilities, from rhythmic drum patterns and tamed sonic chaos to textural and rough synth-sounds. The essence of this unit lies in the exploration of the interplay between the elements of the synthesiser, using the three sequencers and filters, manual controls and modulation patch points. It can be powered by a standard Eurorack PSU or a small ST Modular PSU PCB that can be built separately. INPUTS, OUTPUTS & FEATURES 2 Oscillators 1 Ring-modulated Output of the two Oscillators 1 CV OSC FM Cross-Modulation 2 CV Filter-based Gates 2 CV Decay Envelope Generators 1 CV Multi-mode Filter with two External Inputs and VCA 1 Noise Output 2 Shift Register Sequencers 1 Random Modulation Sequencer 1 CV Clock Generator 1 Resettable LFO 1 Buffered Multiple with Inverted Output 1 Mixer with stereo distribution (panning) OSC I and OSC II PULSE – Output of the PULSE waveform TRIANGLE – Output of the TRIANGLE waveform RNDM – Amount of random modulation of the RNDM SEQ applied to the oscillator´s frequency. FREQ – Manual control of the oscillators´s frequency. FREQ CV Input – CV frequency input with attenuator. The oscillators don´t track exactly 1V/Oct. The MOD´s square wave output is normalized to the OSC I CV input. The MOD´s triangle wave output is normalized to the OSC II CV input. NOISE OUT – Output of the internal NOISE GENERATOR GATE (OSC I & OSC II) IN – Audio input. The oscillator´s TRIANGLE output is normalized to this input. RNDM - Amount of random modulation of the RNDM SEQ applied to filter. This knob also acts as a attenuator for the GATE CV input. CV – CV input for the GATE cutoff. The RNDM SEQ CV output is normalized to this input. OFFSET – GATE cutoff offset FORCE – Amount of DECAY CV applied to the GATE Resonance of the OSC gates can be adjusted via a trimmer on the PCB DECAY (OSC I & OSC II) TRIG – CV input for triggering the DECAY envelope. The SERIAL SEQ TRIG output is normalized to this input. DEC OUT – DECAY output (OSC I Decay output can be set to inverted via jumper on the PCB) CV – CV DECAY input with attenuator. The RNDM SEQ CV output is normalized to this input. DECAY – Manual control of the DECAY length SERIAL SEQ (OSC I & OSC II) CLK IN – Sequencer clock input. The CLOCK GENERATOR´s output is normalized to this input. CLK DIV – The normalized CLOCK GENERATOR input can be divided by 2 or 8 (selectable via jumper on PCB). CV IN – Changes the locked note per clock according to an incoming CV signal. This signal is mixed with an internal noise source that generally generates random notes for the sequencer. GATE OUTPUT – Random or looped GATES CV OUT – Random or looped PITCH CV generated from a noise and CV input source. SCALE – Range of the pitch of CV OUT LENGTH – Select the length of a SEQUENCE. You can choose 4, 5, 6 or 7 (selectable via jumper on the PCB) or 8 steps. Please note that a change of the sequence length might also change the notes that are locked per clock signal, even in LOOP mode. LENGTH CV – CV control for selecting the sequence length RNDM/LOOP – Button to LOOP a sequence. If it is not looped it will generate random notes and gates. ADD – When pressed simultaneously with a CLOCK signal, it adds a random note and gate to the sequence. DEL – When pressed simultaneously with a CLOCK signal, it deletes a note and gate from the sequence. MOD (Resettable LFO) MOD KNOB – Manual control of the LFO RATE MOD RATE – Changes the RANGE of the LFO RATE from fast to slow. RST IN – Resets the LFO cycle on an incoming trigger signal. MULT (1 to 3 Buffered Multiple) IN – Multiple input. The MOD triangle waveform is normalized to this input. OUT (2x) – Buffered output of the multiplied signal. INV – Buffered and inverted output of the multiplied signal . RNDM SEQ (Random Modulation Sequencer) CHANGE – Turn this knob to create new random sequences or loop them STEP/∞/OSC SWITCH – Controls if the CHANGE button is influenced either via the STEP IN input or the OSC I PULSE waveform. In mid-position no additional changes are applied to the CHANGE button. STEP IN – CV input to control the CHANGE knob (if SWITCH is set to STEP) in order to created steps of looped and random sequences. CLK IN – CLOCK input for the RNDM SEQ. The CLOCK GENERATOR´s output is normalized to this input. RNDM OUT – Output of the RANDOM MODULATION SEQUENCER CLOCK (Internal Clock Generator) CLOCK – Manual control of the CLOCK rate CLOCK CV – CV input with attenuator to control the clock rate. The RNDM SEQ CV output is normalized to this input. EXT CLK – External Clock input that overrides the internal clock. Any signal can be patched to this input (CV or audio). THRESHOLD – Sets a voltage threshold at which a clock pulse is generated. With a low threshold, clock pulses are already generated for very low voltages and conversely with a high threshold, clock pulses are only generated at peak voltages. In this way, you can use an audio drum loop, for example, to generate a clock signal and control the amount of clocks generated. MLTMD FILTER (Multi-Mode Filter) CUTOFF – Manual control of the filter´s CUTOFF frequency RNDM - Amount of random modulation of the RNDM SEQ applied to filter. OVERLOAD IN – External input with attenuator. If you turn the attenuator past 12 o'clock, the incoming signal is starting to clip softly. FILTER IN - External input with attenuator. FM IN – Frequency Modulation input with attenuverter (bipolar). The internal LFO Triangle waveform is normalized to this input. RESONANCE – Feedback of the filter output to the input. This goes as far as self-oscillation. RESONANCE CV – CV input for RESONANCE control SLOPE – This button changes the LOWPASS and BANDPASS FILTER SLOPE from 2-pole (12db) to 4-pole (24db). BANDPASS/LOWPASS/HIGHPASS – Filter output of the corresponding filter modes V/OCT – CV input with 1V/OCT tracking. This way you can play the filter with self-oscillating resonance as a third synthesizer voice. VCA CV - Voltage controlled amplifier input that only affects the LOWPASS output. T² – Pre-Filter ring-modulated output of OSC I and OSC II triangle waveforms OSC FM (Oscillator FM Cross-Modulation) FM AMT – Amount of frequency modulation applied to the target (OSC I, OSC II or both) FM CV – CV input to control the frequency modulation amount DIRECTION – Choose the direction of frequency modulation: OSC I modulating OSC II, OSC II modulating OSC I or both modulation each other. OUT (Mixer and OSC I & OSC II Panning) LEFT/RIGHT – Stereo Output VOL I+II – Volume control of the T² output before it is routed to the MULTIMODE FILTER. If you want to use the MLTMD FILTER only with another sound source, simply turn this volume down. VOL II – Volume control of OSC II VOL I – Volume control of OSC I MIXER IN – External mixer input. Audio is directly routed to OUT. VOL IN – External mixer input volume control SPREAD – Extends the panning for OSC I and OSC II in opposite directions and thus distributes the two outputs in the stereo field. The ring-modulated output of OSC I and OSC II remains in the centre position. This way you can also use the stereo outputs as individual OSC outputs. QUICK START GUIDE Please click the image above to open or download the PDF file . SO MUCH TO EXPLORE! Use the multi-mode filter in self-oscillation as a third synth voice . Just turn down the I+II volume, patch a sequence to the v/oct input and use the vca! Add some noise to the mix by patching the noise output into the filter overload input. Turn the gate offsets up to unleash Krakong´s full droning capabilities , additionally cv modulate the OSC FM amount ! Use an external drumbeat to clock Krakong from an audio source . Play with the threshold to get different results! Don't forget to patch the CV output of the serial sequencers to the pitch input of the oscillators to get its full effect! Why not patching the pulse output into the gate input ? Or one of the many sequencer gate outputs into the decay trigger input? VIDEO AUDIO KRAKONG sounds, underlaid with an external beat. Each sample starts with a beat, then KRAKONG begins to play. Further down in the playlist follow some solo sounds. PANEL 80HP GALLERY 1/6 Up

ST CASE SMALL is a 20HP 3D printable Eurorack case designed to hold a small power supply (e.g. POW!) and an effects module to build a modular-compatible effects unit the size of a guitar pedal. Of course, you can also mount any other type of module that suits your needs. The internal depth of the cabinet is 35mm, the rails are inserted from the side. It is recommended to glue small rubber feet underneath to ensure a good stand. st case small / 3d-printable eurorack case / 20 HP ⇣ ST CASE SMALL is a 20HP 3D printable Eurorack case designed to hold a small power supply (e.g. POW!) and an effects module to build a modular-compatible effects unit the size of a guitar pedal. Of course, you can also mount any other type of module that suits your needs. The internal depth of the cabinet is 35mm, the rails are inserted from the side. It is recommended to glue small rubber feet underneath to ensure a good stand. There is a large hole at the bottom for easy access to the power cables and calibration trimmers or bridges. This makes this enclosure ideal for testing purposes. To have your ST CASE SMALL printed, you can download the STL-file below and contact your preferred 3D printing service. It is best to use PLA or PETG filaments. The average cost of printing the enclosure at an online print shop is around 15€ to 30€ (PLA; black; no finish). Local 3D printing services are often cheaper than those you find online. If you print the enclosure yourself on your own printer, it costs about 3€. The case shown on this page was printed with PLA on a Bambu Lab X1C. key features 3D-Printable Low-Cost Slide-in Rail Brackets Lightweight specs & downloads width: 20 HP depth: 55 mm power: no psu DOWNLOAD STL (ZIP) Up

Oscillator drum / digital drum module / 3 HP ⇣ DRUM is an excerpt of the Mutable Instruments PEAKS module. It was reduced to the max and only focuses on the 808 and FM Drum algorithms. 1/3 key features Digital Drum Module Two Modes: 808 & FM Manual and CV Trigger HP friendly Flip Panel with Descriptions for each Mode Based on the MI Peaks Algorithms Wrong Polarity Protection specs & downloads width: 3 HP depth: 65 mm power: 60 mA @ +12V / 2 mA @ -12V documentation videos description / manual There are two modes to be selected via a push button on the PCB: 808 DrumThis is an emulation of the well-known 808 kick drum. You have manual control over the FREQUENCY, PITCH ENVELOPE, TRANSIENT and DECAY. FM DrumThis is a digital drum synth based on FM synthesis. By turning the knobs you can change the FREQUENCY, FM AMOUNT, DECAY and COLOR of the drum sound. DRUM has an internal EQ that allows you to adjust the amount of bass applied to the signal using a trimmer on the PCB. This module also has a flip panel with descriptions per mode on each side. Both modes share a manual TRIG button to execute the drum sound, a TRIGGER INPUT and a signal OUTPUT. Released under cc-by-sa-3.0 license: Pichenettes Mutable Instruments prev Up next

Sequencer flitzem deför / brute sequencer and clock divider / 10 HP ⇣ Flitzem Deför excels as a sequencer for crafting concise, repetitive techno sequences and swift manual sequence alterations. 1/3 key features 4-Step Step Analog Sequencer 3x individual CV Outs to control 3 Oscillators at once 3 Different Sequence Modes: Forwards, Attenuverted, Offset or CV controlled, Backwards Clock or Trigger Through 2x Clock or Trigger Divider adjustable via two Switches Apply Sequence Variations with two Switches Reset CV Input Direction CV input Perfect for Techno Sequences Wrong Polarity Protection specs & downloads width: 10 HP depth: 28 mm power: 45 mA @ +12V / 42 mA @ -12V documentation videos description / manual The FLITZEM DEFÖR is a 4-step sequencer with 3 individual CV outputs. OUT A is providing a 4-step sequence playing forwards. OUT B will output the same as OUT A, but the sequence CV may be attenuverted or offset with the help of two potentiometers. Additionally there is a CV input that may change the pitch of OUT B. In this case the second potentiometer from top right will be an attenuverter for the incoming CV signal. OUT C is playing the same sequence as OUT A, but backwards. In order to trigger other modules in sync there is a CLK OUT that will provide a buffered copy of the incoming CLK or trigger signal. Furthermore the incoming clock or trigger is divided by 2 or 8 and 4 or 16 on the dedicated clock outputs. The division my be changed with two switches. If you like to alternate the sequence of the three CV outputs, there are two switches that will forward the divided clock signals to the sequencer´s clock input. This way you will instantly create breaks, variations and more complex sequences. A trigger signal into the RST input jack will reset the sequencer. Any CV applied to DIR will change the direction. By using the RST and DIR inputs and the four clock division and change switches you will be able to achieve very rhythmical, versatile and interesting sequences you might not expect from a 4-step sequencer. The 3 CV outputs are especially made to control three separate oscillators at once to create brute and heavy sounds and sequences that will surely shake every dancefloor. The attenuvertion on OUT B is super handy to create detune and octave shifting effects and subbasslines that fit the sequence automatically. prev Up next

Effects 3xeq / triple tilt eq / 4 HP ⇣ 3xEQ presents a row of three "One Knob" Tilt EQs, accompanied by an extra Mix Output. This module offers a streamlined solution for shaping waveforms, enriching basslines, refining hats and noises, and harmonizing elements within your mix. 1/3 key features 3x Tilt EQ Change Low and High Frequencies with just one Knob Mix Output Input Normalization for parallel EQíng Wrong Polarity Protection specs & downloads width: 4 HP depth: 28 mm power: 26 mA @ +12V / 24 mA @ -12V documentation videos description / manual Each EQ will boost high frequencies and cut low frequencies when turning the pots clockwise and vice-versa when turning them counter-clockwise. Each input can be processed individually, but you may also take the sum of 2 or all three eq´d inputs from the Mix Output. The first Input is normalised to the other two inputs. Thus its possible to use all three EQs on one signal in parallel. prev Up next

Oscillator boba fat / dual analog drum generator / 14 HP ⇣ At its core, Boba Fat features two oscillators that empower producers to easily craft both earth-shaking sub-basses and delicate, enveloping kicks. BOBA_BACK_NEW.jpg 1/3 key features Analog Drum Generator Designed for Kick- and Bassdrums Two Voices: Soft Mallet and Hard Mallet Each Mallet may be triggered independently Internal LFO with Sync Volume and Boost per Voice Groove CV Input „Vari“ for Hard Mallet Mod CV Input for Soft Mallet specs & downloads width: 14 HP depth: 28 mm power: 95 mA @ +12V / 65 mA @ -12V documentation videos description / manual BOBA FAT is a dual voice bass- and kick-drum generator. The first voice "soft mallet" generates smooth and warm sounding bass and sub-bass sounds, whereas the second voice "hard mallet" is rather considered to create kick or tom sounds. The eight potentiometers on the left control the soft mallet generator. PITCH controls the frequency, LEVEL the volume and BOOST adds low frequencies turning it clockwise and reduces them turning it counter-clockwise. MOD RATE and MOD ATT control an internal LFO and its attenuation. The LFO will affect the frequency of the soft mallet voice only. Additionally the LFO can by synced to the incoming gate or trigger. TRIG SLEW acts as some kind attack control and reduces transients making it very easy to create very smooth sub-bass drums. DECAY and RELEASE control the duration of the sounds being amplified by an internal VCA. PRESENCE changes the prominence of the sound. You can adjust the response by setting a jumper on the back of the module to either FAST or SLOW, optimizing the soft mallet circuitry for sharper, plucky tones or deeper, sustained bass sounds. The three potentiometers on the very right affect the hard mallet generator. PITCH, LEVEL and BOOST have the same function as for the soft mallet part. PITCH will have a greater effect from 12 to 5 o´clock. Changes from 7 to 12 o´clock are rather subtle, but are set on purpose to add fine nuances with LEVEL and BOOST there. OUT VOL changes the overall loudness of both drums. GATE accepts any gate or trigger signal to activate the generators. A signal at only at GATE will trigger both mallets. If a additional trigger is inserted to GATE S, GATE only triggers soft mallet and GATE S triggers hard mallet separately. This way you can have individual drum tracks for both mallets creating very interesting rhythms. A CV signal at MOD CV will override the internal LFO and CV control soft mallet pitch. It doesn‘t exactly track 1V/oct, but you will be able to play some melodies. A trigger, gate or clock signal at MOD RST lets you reset the internal LFO with an external signal. Any CV signal at VARI will slightly alternate the volume or generate additional triggers for the hard mallet circuit (depending on the incoming voltage). This gives you endless ways of creating fine grooves and interesting rhythms. The circuit was designed to easily go into distortion/clipping to encounter the limits. You may be careful using LEVEL and BOOST controls. Boba Fat definitely needs some fine adjustments in order to find the sweet spots. If you feed the GATE input with a trigger at audio rate you can also use BOBA FAT as a weird sound generator or drone machine. prev Up next

Modulation & Random wave / cv generator with four connected triangle lfos / 4 HP ⇣ This LFO, harnessing four interconnected LFOs, offers a powerful tool for dynamically altering CV destinations in rhythmic patterns. Its synchronized modulation brings intricate rhythmic control to your creative endeavors. 1/3 key features 4x LFO Out 4x LFO Rate Rate Switch Skiff friendly Wrong polarity protection Illuminated Wave -Logo specs & downloads width: 4 HP depth: 28 mm power: 34 mA @ +12V / 25 mA @ -12V documentation videos description / manual The rate of each LFO may be adjusted with the dedicated potentiometers. Each LFO signal is supplied on the four outputs on the bottom side of the module. Depending on the potentiometer settings also slopes or square- wave s can be generated. Please refer to the demo video below. The fours LFOs are connected to each other creating an LFO-chain. If the first LFO reaches its highest value, the second LFO starts to rise. And when the first output reaches its lowest voltage, the second channel starts to decrease and so on. Each potentiometer controls the time it takes for the LFO to reach its maximum voltage, which also controls the time it takes to reach 0 volts for its inverted counterpart (1&3 and 2&4). Simultaneously the pots control the time the other two LFOs hold their maximum voltage level. Patching all LFOs into a VCO´s sound shaping functions you can create wave -like sounding effects that will repeat periodically. This module is very good for generating very slow cycles when the RATE switch is set to SLOW. Conversely, it can also generate fast cycles when the switch is set to FAST. The state of each LFO is being indicated by the illuminated letters W A V E on top of the module. Each letter will light up when its dedicated LFO outputs a voltage. prev Up next

Mixer & VCA fay v2 / fader, vca, overdrive, decay / 24 HP ⇣ FAY Combines four functional units in a tiny 4HP Module. It consists of a Fader, a VCA, an Overdrive and a Decay/Release Envelope. 1/3 key features Manual Fader/Mixer/Switch Voltage controlled amplifier Decay or Release Envelope Overdrive Functionality Volume Control LED indication Wrong polarity protection specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 10 mA @ -12V documentation videos description / manual If you insert two audio sources into the jacks IN A and IN B you may fade between both sources manually using the potentiometer on the bottom. This way you can either mix two waveforms or switch between them.The signal is directly routed to the VCA. Here you can control the volume or amplitude of the audio either manually or via control voltage using the CV jack. If there is a trigger signal at the TRIG input you will be able to control the VCA with the internal decay or release envelope (selectable via jumper). Simply insert a trigger signal into the TRIG jack and use the potentiometer below the LED to control the decay length. The LED indicates the current state of voltage. The envelope time can be set to 10ms or 3s via jumper. Thus is can be very snappy for percussion purposes. The decay or release envelope is also provided at the ENV OUT jack to control external modules via CV. Additionally there is an OVERDRIVE option that may be activated via switch. It is also affected by the CV input and shapes the sound to a certain extend. The OVERDRIVE is fairly subtle and more audible on short decay times. Nevertheless it really crunches up some simple waveforms. In contrast to the first version FAY Mk2 has an improved PCB layout and now only consists of one PCB to solder. prev Up next

Filter & EQ franz / analog multimode filter with lfo and cp3 mixer / 10 HP ⇣ Experience the ultimate sonic bliss with this filter featuring a smooth, buttery tone that wraps your sound in warmth. The integrated LFO adds rhythmic pulsations, while the CP3 mixer ensures seamless blending of your audio sources. 1/3 key features Analog OTA Filter 4 Filter Outputs: Low Pass, High Pass, Band Pass, Notch Internal LFO with two Waveforms: Triangle & Square LFO Reset,LED indicating LFO rate, LFO normalized to Filter ircuit Apply two LFO waveforms at the same time Attenuator for each LFO Wave or external CV 3-Channel Transistor based Mixer MIX out to use the Filter as a single Mixer Block Volume control for each Mixer Channel Wrong Polarity Protection specs & downloads width: 10 HP depth: 38 mm power: 83 mA @ +12V / 72 mA @ -12V documentation videos description / manual The filter is based on the CA3080 chip and offers four different outputs: Low Pass High Pass Band Pass Notch Tweak the dedicated knobs to finely tune the CUTOFF frequency and RESONANCE according to your preferences. This versatile module not only features a filter circuit but also houses a resettable LFO, offering both TRIANGLE and SQUARE waveforms. The LFO is internally linked to the Filter CUTOFF, modifiable using the CV1/TRI and SQU/CV2 knobs. These waveforms can be simultaneously utilized and reset via an external trigger. The automatic normalization of each LFO waveform disengages upon connecting an external CV source to the CV1 or CV2 input jacks. Adjust the LFO Rate using the designated potentiometer, with its speed indicated by a dual-colored LED. For waveform layering, a transistor-based 3-channel mixer is conveniently situated at the module's base. The mixer's sum directly feeds into the filter and is also routed to the MIX output jack. Precisely control input volumes per channel (VOL1-3) and collectively adjust them along with the filter INPUT potentiometer. prev Up next

1U Module slide / 2 channel mixer/fader / 12 HP ⇣ SLIDE is a very simple but powerful 2 channel mixer with just one slide potentiometer. 1/4 key features 2 Channel Mixer 2 Inputs, 1 Output Slide Potentiometer Potentiometer LED indicating Voltage State Available in Intellijel and Pulp Logic Tile Format Convertable Flip Panel Skiff friendly specs & downloads width: 12 HP depth: 25 mm power: 20 mA @ +12V / 15 mA @ -12V documentation videos description / manual With two input jacks and one output jack in the middle you can mix or fade any audio or cv singnal with the slide potentiometer. This module is available in the Intellijel 1U format as well as in the Pulp Logic 1U Tile format. Additionally the panel is convertable in order to flip it upside down, if you want to have the jacks at the bottom of the module. 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

Modulation & Random zeitreise / sample & hold, slew limiter and meandering cv generator / 6 HP ⇣ ZEITREISE is about the slow sequence of events that helps to take voltage on a journey through time. Its your perfect tool for creating slow and unpredictable parameter changes via control voltage. 1/2 key features Clock Generator Sample & Hold Slew Limiter 3x Slowly Meandering CV Noise Generator Internal Normalizations Skiff Friendly Wrong Polarity Protection specs & downloads width: 6 HP depth: 30 mm power: 60 mA @ +12V / 45 mA @ -12V documentation videos description / manual ZEITREISE is the German term for "time travel" and the time in this context is a clock signal that is set using the S&C CLK potentiometer on the top of the module. It´s rate can be as slow as 0.2 Hz ( approximately 12 bpm) and as fast as 21 Hz (approximately 1,236 bpm). This clock signal is sent to the internal Sample & Hold (S&H) circuit. A S&H circuit in modular synthesizers captures and holds voltage samples at specific intervals, usually triggered by an external clock, creating a stepped output that is useful for generating random or sequenced voltages for modulation. With ZEITREISE, any voltage applied to the S&H CV input is sampled, held and output to the S&H OUT socket with each clock pulse received, either externally via the S&H CLK input or, if this input is not patched, via the internal clock generator. You can reduce the voltage applied to the S&H CV input with the corresponding attenuator. The S&H output is forwarded to a slew limiter. A slew limiter smoothes or limits abrupt voltage changes and ensures controlled slew rates of the input signals, resulting in smoother transitions and curved waveforms for modulation and sound shaping. The amount of slew rate that attenuates the voltage changes can be increased by turning the SLEW IN potentiometer to the right. You can also feed external CVs, such as pitch voltages, into ZEITREISE via the SLEW IN socket. This allows you to create a portamento effect for tonal sequences. Below the S&H and slew limiter you will find three meandering CV outputs REISE EINS, REISE ZWEI and REISE DREI that slowly change their voltage levels (+0V to +8V). The voltages come from different stages within the same circuit. Take these voltages from the REISE outputs and reduce their voltage levels with the appropriate attenuators. Please note that the LEDS display the voltage levels before the attenuators to provide better feedback on the status of each REISE output. These voltages are great for slowly controlling external parameters such as sample playback points in samplers, filter cutoff frequencies or timbre and harmonics in oscillators. There is an additional output at the bottom, which supplies either the clock from the S&H CLK input (patched or normalized) or white noise. You can select one of these outputs using a jumper on the back of the module. ZEITREISE QUICK START GUIDE: ZEITREISE_QUICK_START .pdf Download PDF • 566KB prev Up next