Oscillator give v2 / classic analog vco with sub-octaves and waveform mixer / 14 HP ⇣ GIVE V2 is a sonic powerhouse that transcends the boundaries of traditional sound generation. The module is an exceptional analog VCO accompanied by a versatile waveform mixer and three suboctaves 1/3 key features Classic Analog VCO 5 Outputs: SAW, TRI, SUB, NOISE, PULSE 1V/Octave tracking Pulse Width Modulation with Attenuator Frequency Modulation with Attenuator Integrated Waveform Mixer Skiff friendly design Wrong Polarity Protection specs & downloads width: 12 HP depth: 28 mm power: 31 mA @ +12V / 28 mA @ -12V documentation videos description / manual The VCO provides five outputs, the last four of them can be mixed with an integrated mixer:PULSE, SAW, TRIANGLE, 3x PULSE SUB & NOISE Patching a voltage/audio source into FM you can frequency modulate the oscillator. Incoming voltages can be attenuated with FM CV. In the middle of the module you will find the PWM potentiometer. Here you may change the pulse width of the pulse wave. The width may also be controlled via external voltage with the PWM jack and the PWM CV attenuator. Just like all other classic analog VCOs GIVE II also tracks one volt per octave with the help of the 1V/OCT input jack. Each wave can also be hard-synced by an external wave patched to the SYNC jack. In addition to the classic VCO functions GIVE II also provides an integrated frequency divider. The MIX output jack will not only supply the waveforms SAW, TRIANGLE and NOISE, but also provides up to 3 sub octaves derivated from the PULSE waveform. The volume of each sub-octave may be adjusted with the potentiometer SUB 1-3. ORIG will adjust the volume of the original PULSE signal. Using the switch ORIG SQU you can flip the SQUARE waveform. prev Up next

Oscillator trommelmaschine / three-voice hybrid drum synthesizer / 18 HP ⇣ TROMMELMASCHINE is the German name for "drum machine", and it perfectly sums up the essence of such a machine: a versatile three-voice digital and analog drum module that can be used to create a range of kick drums and various percussion sounds. 1/3 key features 3 Voice Drum Generator Digital & Analog Drum Synth plus Noise Two Digital Drum Modes CV Inputs with Attenuators Internal Mixer Individual Outputs Wrong Polarity Protection Firmware based on MI Peaks: Released under cc-by-sa-3.0 License specs & downloads width: 18 HP depth: 28 mm power: 165 mA @ +12V / 72 mA @ -12V documentation videos description / manual This drum module features a DIGITAL DRUM VOICE (D) with PITCH and TONE control that has three modes (with latest firmware V2): KICK, SNARE and PERC. Press and hold the MODE switch for one second to switch between the KICK and PERC modes. When in KICK mode, press the button briefly to switch to SNARE mode. In KICK mode the sliders are MOD1 = DECAY, MOD2 = TRANSIENT, MOD3 = PITCH ENV and in PERC mode MOD1 = COLOR, MOD2 = DECAY and MOD3 = FM AMT. In SNARE mode the sliders are MOD1 = DECAY, MOD2 = SNAPPYNESS, MOD3 = TONE. PITCH and MOD can be changed manually or via CV with dedicated attenuators. If nothing is connected to the CV inputs, the MOD CV attenuators change the response curve of the MOD sliders. Turn them to the right to get a linear response and to the left to get a logarithmic response. This facilitates precise adjustment of the slider positions. The ANALOG DRUM (A) voice has DECAY, DRIVE and PENV (pitch envelope) sliders, plus PITCH and LENGTH (pitch envelope length) potentiometers. These can also be controlled via CV. The PITCH CV input tracks 1V/OCT and can be used to play notes. The EMPH input lets you emphasize the signal. This jack can be used as an input to control the internal VCA, e.g. to feed it with an ADSR. The third voice is a NOISE GENERATOR (N) with COLOR control and DECAY slider. The decay of the noise can also be controlled via CV. All voices have individual trigger inputs (D. TRIG is normalized to the other trigger inputs) and individual outputs and are also summed using an internal mixer at the MAIN output. The volume of each channel can be changed with the volume pots. Loudness LEDs indicate when a voice is close to clipping. TROMMELMASCHINE QUICK START GUIDE: TROMMELMASCHINE_QUICK_START .pdf Download PDF • 984KB 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

Modulation & Random good & evil / chained lfo and random voltage generator / 12 HP ⇣ GOOD & EVIL ingeniously captures both order and chaos within a single voltage generator module. Its versatility extends to controlling numerous parameters in other modules, making it an ideal companion for crafting gradual shifts in ambient soundscapes or venturing into dynamic and evolving patch creations. 1/3 key features Four Chained LFOs Controllable Time Attenuator per LFO Output Four Random Voltages Adjustable Amount of Random and Chaos EVIL CV Input Random Gate Wrong Polarity Protection specs & downloads width: 12 HP depth: 28 mm power: 75 mA @ +12V / 55 mA @ -12V documentation videos description / manual The GOOD side consists of a chain of four LFOs. Each LFOs only starts to rise when its predecessor descends. The four knobs control the time it takes for each LFO to rise and simultaneously controls the time it takes for the predecessor to descend. The LFOs have individual outputs with an attenuator. This row of low frequency oscillators can either create very slow envelopes followed by fast changes, just very slow voltage changes or a chain of fast swinging LFOs with their voltage never being the same on the four outputs at a time. The EVIL side generates random voltages that can be influenced by the knobs EVIL 1 and EVIL 2. These change the amount and amplitude of chaos being created. The voltages may move very slow, but also evolve to a burst of changing voltages over the course time. Just like on the good side there are also four outputs on the evil side. Additionally there is a GATE output that provides random gates in conjunction with the EVIL voltages. The EVIL CV input gives voltage control over the amplitude of chaos. An attenuator may lower the amount of voltage being inserted to the EVIL side. The last LFO of the GOOD side is normalised to the CV input of the EVIL side, if no patch cable is inserted into EVIL CV. The voltage range is between +/-3V for GOOD and +/-10V for EVIL. The EVIL outputs usually wobble and meander around +/-2V, but also show peaks of +/-5V, and +/-10V (expecially output V). Using the EVIL CV input forces the circuit to generate peaks more frequently. The gate has a voltage of approx. +6V. prev Up next

Oscillator eurokastle / eurorack version of the bastl kastle / 10 HP ⇣ This is a Eurorack adaptation of the renowned Bastl Instruments Kastle – a digital synthesis playground. Embodying the full spectrum of Kastle 1.5 functionality, this version features subtle modifications to seamlessly integrate into the Eurorack format. KASTLE_BACK.jpg 1/3 key features Please check out the Bastl Desktop Synths for further details and consider buying one - it´s worth it! Use with Bastl Kastle or Drum Kastle Firmware Illuminated EuroKastle Logo Wrong Polarity Protection specs & downloads width: 10 HP depth: 28 mm power: 47 mA @ +12V documentation videos description / manual Switching between OSC mode and Rungler mode has been streamlined with a convenient switch, eliminating the need for intricate cable patching. Furthermore, each functionality is consolidated to a single input/output, simplifying your setup. Notably, our EuroKastle boasts a unique Waveshape CV attenuator absent in the original Kastle design. While we highly recommend Bastl's desktop version, the EuroKastle can stand independently. You can independently source all the required components, without necessarily needing the original. It's important to note that the PCB lacks an AVR ISP header. To program the Attiny85 ICs, a prior flashing process is essential before they find their place in the IC sockets (a breadboard can be utilized for this purpose). The programming process can be completed using any AVR ISP programmer. Powering the EuroKastle is a breeze with compatibility with standard Eurorack power supply units. Version V2 introduces AVR Headers to the PCB's bottom for direct ATTiny programming on the PCB itself. The diode pads have been thoughtfully enlarged for an enhanced soldering experience. Additionally, the CV Sources are normalized to the CV Input switches, facilitating instant modulation without the need for external patching. In Version V3, we've incorporated a jumper that allows you to transform the Mix OR OUT socket into a TRIGGER INPUT for the Drum Kastle firmware, enhancing your creative possibilities. For those seeking additional technical details and resources, we encourage you to explore the following links: Bastl Schematics Bastl Instruments Official Website prev Up next