Building these DIY kits happens on your own risk. We can't do support or give a guarantee for correct function, because that depends on your own skills. Be responsible and check the building instructions before you buy. Thank you!


Bastl - Cinnamon

Cinnamon is a very unique sounding, voltage controlled state variable filter filter. The presence of drive and character switches makes it a multi-flavoured spice for your sound ! This is a full kit with alu-panel.

Features

  • voltage controlled cutoff frequency
  • CV input with attenuator
  • volt per octave CV input
  • audio input with gain control
  • drive switch to overdrive the input of the filter • low pass output (12db/oct – 2-pole)
  • band pass output (6db/oct – 1-pole)
  • high pass output (12db/oct – 2-pole)
  • resonance control
  • character switches to change the resonance response (character switches might break V/Oct tracking)
  • with maxed resonance works as an oscillator (0°,90° and 180° phased sinewave at LP,BP and HP outputs)
  • character switches change the waveform when self-oscillating and might also break the V/Oct tracking

Technical details

  • 5HP width
  • PTC fuse and diode protected 16pin power connector • 35mm deep
  • current consumption: +12V: <30mA, -12V: <30 mA

Building instructions can be found here. A bill of materials via Google Docs hereDIY level: medium.

Bastl - Cinnamon

115,00 €

  • 0,15 kg
  • Sold out at the moment

Bastl - Dynamo

Dynamo - Dynamics and more! Dynamo is combination of 3 utility modules: envelope follower, comparator and voltage controlled switch. It combines Envelope Follower and comparator to extract gate from the envelope. On top of that there is full-wave rectifier output |EF IN| and Compressor CV curve generator.

When the Compressor CV is plugged into CV input of a VCA with offset and attenuator knobs you get an Compressor! Threshold knob on Dynamo sets the compressor threshold, Offset on the VCA sets the gain and the attenuator on the CV input sets the ratio of compression (which can also go negative). This allows you to create compressor type of effect from anything: VCA, tube module, VCF or anything that comes to your rack!

The other trick of the Dynamo is the voltage controlled switch section in combination with the full-wave rectifier and comparator. All pre-normalised and for what reason ? Make “fake thru-zero modulation” with anything you like! Define what happens when the negative modulation is happening and adjust the zero crossing point with CV. The whole world of very deep modulations is waiting for you now…

Cinnamon is a very unique sounding, voltage controlled state variable filter filter. The presence of drive and character switches makes it a multi-flavoured spice for your sound ! This is a full kit with alu-panel.

Features

  • 5HP
  • Two passively connected Envelope Follower inputs (multiple)
  • Inverted and non-inverted Envelope Follower Output
  • Full-wave Rectifier Output |EF IN|
  • Compressor CV Output with indication LED (only negative voltage when envelope is greater than the threshold)
  • THR-EF output is similar to compressor CV but can go to positive voltages – it tilts the whole compressor dynamics curve (not only the part above threshold)
  • selectable Envelope Follower Release time (Short, Mid, Long)
  • Output of Envelope Follower is normalised to Comparator Input
  • Comparator with Threshold knob, Threshold CV, Input and Output
  • Output of Comparator is normalised to the Gate of VCS
  • Voltage Controllable Switch is bi-directional (non-buffered) A or B switch
  • VCS Gate threshold is around 1.5 volts
  • On high gate the B signal is connected with A or B connector (otherwise it is A)
  • Signal on A is inverted and normalized to B (easily achieve bi-polar VCA emulation or other waveshaping)

Building instructions can be found here. DIY level: medium.

Bastl - Dynamo

115,00 €

  • 0,13 kg
  • Available
  • Ships within 3-5 days1

Bastl - Noise Square

Noise square is versatile generator of noises and square wave signals. There are two analog noise generators: WHITE noise and PINK noise. All other sound sources are generated digitally. There is a METALIC noise which is 6 oscillator sound bank similar to 808 but generated digitally (with analog summing) and with TUNE icluding CV control option. The DIGITAL noise output has adjustable TUNE and CV control. SQUARE and COW outputs have one square wave signal in common and the COW output has another square signal added in specific ratio to it to get the cowbell sound easily. There are 2 CV inputs for controlling the digital sound sources. For the first CV input there is a switch to select whether it controls the METALIC noise or DIGITAL noise tuning. The second CV input is dedicated to both the SQUARE and COW outputs. The CV inputs reacts in range 0-10V.


Features

  • 2 analog noise generators WHITE and PINK
  • 4 digital signal sources
  • SQUARE output
  • COW output (double square out)
  • METALIC output(digital 808 cymbal noise)
  • DIGITAL output (with tuning)
  • digital signals with multiple square components are summed in analog
  • tune controls for METALIC, DIGITAL and SQUARE (applies also to COW)
  • common CV input for SQUARE and COW signals
  • another CV input with switch to select whether it affects METALIC or DIGITAL
  • CV inputs reacts in 0-10V range

Technical details

  • 5 HP
  • 35mm deep (skiff friendly)
  • current +12: <15mA, -12: <15mA, +5:<20mA
  • PTC fuse and diode protected 16 pin power connector
  • requires 5V in bus board

Building instructions can be found here. DIY level: medium.

Bastl - Noise Square

92,00 €

  • 0,13 kg
  • Sold out at the moment

Bastl - Tea Kick

Tea kick is universal analog circuit which is based on improved version of twin T resonant structure and mainly inspired by analog drum designs of Standa Filip. The basic principle or this drum is to create virtual electronic membrane which you strike with electricity than the membrane vibrates and created very natural drum wave form which when outputed to a speaker (another membrane) sounds very natural. To adjust such membrane we have TUNE and RESONANCE control. Think of adjusting those as if tuning an acoustic drum. There is a CV input for tuning the circuit so it can sound from bass drum through all the toms to woodblock. There is main TUNE control knob for the tuning and also CV Input with Attenuator.

There is a RESONANCE control which affects how much resonant the circuit is. However the resonance also affects the tuning: the more resonant the lower the drum sound is. Add resonance to get longer decay drum sounds. The resonance range switch can limit the resonance from self oscillating. When you switch it up the resonance control makes the circuit self oscillate and than it can be used as kind of VCO.

Tea kick also has a click generator with tone control which is mixed into the signal. Think of the click as of a stick which you can use to strike a acoustic membrane of a drum – the resulting sound has different character. The click tone control also affects the spectrum of the twin T circuit. There is also SQUARE output and WTF input available for more fun experiments.


Features

  • bass drum generator
  • Tune knob for adjusting pitch
  • CV input with attenuator for Tune
  • resonance knob
  • resonance range switch (low range limits the circuit from self oscillation)
  • click tune knob – adjusts pitch of click added to the drum body
  • click output jack – when plugged in it puts the click out of the main output
  • buffered output
  • square wave output
  • trigger input
  • wtf input (acts something like band pass filter but not really:)
  • trimmer to adjust the resonance range

Technical details

  • 5 HP
  • 35mm deep (skiff friendly)
  • current +12: <15mA, -12 <15mA
  • PTC fuse and diode protected 16 pin power connector

Building instructions can be found here. A bill of materials via Googe Docs here. DIY level: medium.

Bastl - Tea Kick

92,00 €

  • 0,12 kg
  • Sold out at the moment

Bastl - Skis

Dual decay & VCA. In the front of every ski there is a curve similar to the decay envelope. Skis module has two channels A and B and each of them consists of a decay envelope with knob control and a VCA. There is a TRIGGER input to trigger the envelope, a buffered envelope output which is normalised to the CV input of the VCA. Than there is SIGNAL IN and OUT of the VCA. There is also a CRUNCH switch which activates a special mosfet lofi VCA circuit inspired by designs of Standa Filip. This adds a slight crunchy character which is changing with the decay of the envelope.

 

A typical application of Skis is to take two signals (noises for example) and generate drum sounds with adjustable DECAY from them with a TRIGGER signal. However you can also use the two VCAs and two DECAY envelopes independently.

Features

  • dual decay envelope with adjustable decay time (trigger input, CV output)
  • dual vca (signal IN, signal OUT, CV IN is normalized to CV output of decay envelope)
  • crunch feature inspired by circuits of Standa Filip
  • jumpers for changing the decay envelope to release envelope (vca is on full while there is a gate signal and than it decays)
  • jumpers for enabling the decay knob to completely mute the decay envelope
  • jumpers for selecting weird filtering of the output signal (also inspired by Standa Filip)

Technical details

  • 5 HP
  • current: +12: <30mA, -12: <20mA
  • 35mm deep (skiff friendly)
  • PTC fuse and diode protected 10 pin power connector

Building instructions can be found here. A bill of materials via Googe Docs here. DIY level: medium.

Bastl - Skis

92,00 €

  • 0,13 kg
  • Sold out at the moment

Bastl - Grandpa

Grandpa is a Granular Sampler. We have been asked by people to bring microGranny into the modular and we decided to rethink the whole granular sampler idea to fit it best into small size eurorack module. Grandpa is the result! It has 2 trigger inputs to trigger 2 different samples. CV input which is assignable to any sound parameter and signal OUTPUT. The CV input can be also used to trigger grain shift. Grandpa reads microSD card accessible from the front panel and runs the same sound core as microGranny 2. For each sample you can adjust: sample rate, crush, grain size, shift speed, attack, release (full release is hold), start and end position.

 

Features

  • granular sampler with microgranny 2.0 soundcore
  • plays wav files from the microSD card, 22050 Hz, 16 bit, mono
  • 12bit output
  • adjustable sample rate (can go up to 44.1 kHz)
  • trigger inputs for playing 2 different samples with different settings
  • each trigger input has a button to do the trigger manually
  • RGB led to indicate page (on each page the two knobs adjust different parameters)
  • crush distortion
  • adjustable grain size and grain shift (positive or negative)
  • digital attack decay envelope
  • start and end point
  • no interpolation between grain jumps
  • each sample has adjustable destination of CV input – it can go to any of the parameters
  • grain sync – CV input can act as trigger input for triggering the grain shift
  • can recognize 35 different samples on the microSD card (they need to be specific name)
  • 35 presets (all settings of the 2 samples is one preset)
  • CV input reacts in 0-10V range
  • breakout for FTDi USB adaptor for hacking, opensource firmware (see github)

Technical Details

  • 5 HP
  • 35mm deep (skiff friendly)
  • current +12 <50mA
  • PTC fuse and diode protected 10 pin power connector

Building instructions can be found here. A bill of materials via Googe Docs here. DIY level: medium.

Bastl - Grandpa

175,00 €

  • 0,13 kg
  • Sold out at the moment