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!


Frequency Central - Boom

Analogue Drum voice with a broad range of Applications.
Boom!! can be used to create bass drums, tom toms, chirps, blips and clicks.
The heart of the module is a VCO which is built around one half of a LM13700.
The VCO has a HIGH/LOW switch as well as a SWEEP control, which defines it’s response to the onboard envelope.

 

Technical Information

Power: 10mA @ +12V / 09mA @ -12V

Width: 4 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: medium

 

Frequency Central - Boom

47,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - CEMvelope

ADSR Sequencial Pro-One

CEMvelope is based on the legendary ADSR section of the Sequential Circuits Pro-One monosynth, with minor adaptations to integrate it into Euro format. Smooth and snappy!
It has a gate input as well as a trigger input, the trigger input works in conjunction with the gate input for multiple triggering from a suitable controller device.

CEMvelope has at it’s heart a CEM3310 or AS3310. Here is a Video about it.

 

 Technical Information

Power: 8mA @ +12V / 11mA@ -12V

Width: 4 HP

Depth: 35mm

Including white knobs


This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

 

Frequency Central - CEMvelope

68,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Continuum Phaser 2

Allpass VCF
Continuum looks and acts rather like a VCF, in fact that is exactly what a phaser is, an all-pass VCF.
There is far more to phasers than just sweeps up and down from an LFO, so Continuum has two CV inputs, so you can use a variety of CV sources simultaneously.

 

Technical Information

Power: 14mA @ +12V / 15mA @ -12V

Width: 12 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: medium

 

Frequency Central - Continuum Phaser 2

78,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Deep Thought

Deep Thought is a Boolean Logic module with two distinct sections each with their own pair of inputs.
The upper section features addressable Boolean logic, with any one of NOT A, NOT B, AND, NAND, OR, NOR, XOR and XNOR being chosen either via knob or via CV input.

 

Technical Information

Power: 14mA @ +12V / 06mA @ -12V

Width: 10 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: medium

 

Frequency Central - Deep Thought

60,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Dual XVCA

Roland 100M based VCAs for Eurorack.
Each features two audio inputs, two CV inputs, linear and exponential response switch and Initial Gain control.
High output for patching within your modular, Low output for patching to the outside World at line levels.
Cool authentic retro sounds! The classic Roland VCA redesigned to use LM13700.
 

Technical Information

Power: 15mA @ +12V / 15mA @ -12V

Width: 10 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

 

Frequency Central - Dual XVCA

78,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - High Towers

High Towers is a programmable 4 channel voltage controlled clock divider.
It is able to receive external clock and reset pulses.
Divides the incoming clock pulses by 1, 2, 4, 8, 16, 32, 64 and 128.
Each of High Towers 4 assignable outputs can stream any of these divisions.

 

Technical Information

Power: 15mA @ +12V / 11mA @ -12V

Width: 10 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: medium

 

 

Frequency Central - High Towers

72,00 €

  • 0,16 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Klangstadt

Klang Stadt is the latest FC iteration of Electric Druid’s VCDO digital wavetable oscillator.


Features
• CV’d interpolating waveforms
• LFO
• CV’d subosc waveforms and octaves, CV’d glide, bitcrushing and more!
• Frequency CV input accepts 0-5V control voltages
• Quantized to semitones, to cover the MIDI note range 0-63
• improved PWM filtering
• addition of Sub Two output
• addition of Klang output
• addition of Xmod feature
• onboard LFO for riding the waves

 

Technical Information

Power: 41mA @ +12V / 33mA@ -12V

Width: 16 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: medium/advanced

Frequency Central - Klangstadt

100,00 €

  • 0,23 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Logic Bomb

Logic Bomb is a Boolean logic module with two independent but identical sections.
Both sections feature addressable Boolean logic, with a choice of any one of:

 

Features
• NOT A
• NOT B
• AND
• NAND
• OR
• XOR
• XNOR

Technical Information

Power: 12mA @ +12V / 3mA@ -12V

Width: 6 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Logic Bomb

55,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Meth Amp

Big Muff Distortion

Meth Amp is based around the fuzz core of the EH Big Muff pedal. Lovely fuzz and distortion based on the classic Big Muff pedal! It’ll do wooly warm fuzz, subtle tone shaping with a soft saturation/colour, feedback madness and work as a great output VCA (LPG style tones possibly too). The clipping diodes have been replaced by red LEDs to take account of the change in power supply from 9V in the original Big Muff to +/-12V in Meth Amp.
To the fuzz core has been added a bunch of OTAs, each controlling a different aspect of audio processing: gain, regen (a new feature – not present in Big Muff), tone and volume. Thereby, each feature is fully voltage controllable.
Additionally, there is a separate x100 preamp which can be used to boost external audio for further processing by Meth Amp. Here is a Video about it.

Technical Information

Power: 25mA @ +12V / 25mA @ -12V
Width: 12 HP
Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

 Building instructions can be found here.

 

DIY level: easy

 

Frequency Central - Meth Amp

98,00 €

  • 0,2 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Monograf

20HP hardwired synth voice for fast set up times, with a decidedly East Coast feel.

Monograf is a fixed signal path monophonic synth voice with many unique features, including a number of patch points for flexibilty within a modular setting.
Our aim was to design the simplest full featured and good sounding single VCO synth within as small a space as possible, while offering a broad sonic palette and fast setup times.
Monograf includes the following elements:

Technical Information

Power: 38mA @ +12V / 34mA @ -12V
Width: 20 HP
Depth: 35mm

Including knobs

 


This is a Do-It-Yourself kit, not an assembled module.

 Building instructions can be found here.

 

DIY level: medium

Frequency Central - Monograf

165,00 €

  • 0,35 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Product

Frequency Central - Product



Full featured, fully modular synthesiser for Eurorack with a pre-patched normalised signal path for quick setup.
A combination of the XVCO TWO, Raging Bull 3.0 VCF/VCA, and System X Envelope, where each section can be used completely individually or as part of the larger whole.
onboard LFO for PWM and FM and Noise Source.


Technical Information

Power: 75mA @ +12V / 45mA @ -12V
Width: 26 HP
Depth: 35mm

Including knobs

 


This is a Do-It-Yourself kit, not an assembled module.

 Building instructions can be found here.

 

DIY level: medium

Frequency Central - Product

200,00 €

  • 0,35 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Raging Bull 3.0

Voltage controlled Filter Moog Taurus
Raging Bull is based on the legendary Moog Taurus Mk I VCF and VCA. It has a lovely, thick Moog-like quality, which is further enhanced by the drive you can get out of its VCA at higher settings.
A big part of the sound of the Taurus was the way in which the VCF interfaced with the VCA, so on Raging Bull the VCA is always in the audio path. A toggle switch allows you to select ‘always open’ or CV control of the VCA from CV input 3.
By sending an ADSR into CV3, the signal will go to the VCA CV input unattenuated and the VCF CV input via the attenuator 2. By sending a gate into CV3, and setting the attenuator to zero, the VCA can be gated while the gate has no affect on the VCF.

Technical Information

Power: 8mA @ +12V / 7mA @ -12V
Width: 10 HP
Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

 Building instructions can be found here.

 

DIY level: easy

 

Frequency Central - Raging Bull 3.0

94,00 €

  • 0,17 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Reset Simulation

Reset Simulation is a Boolean logic module with two inputs, A and B, and 8 simultaneous outputs.
NOT A, NOT B, AND, NAND, OR, NOR, XOR and XNOR.

 

Technical Information

Power: 11mA @ +12V / 7mA@ -12V

Width: 6 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

 

 

Frequency Central - Reset Simulation

52,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Seismograf BD

Versatile Drum module with 8 vintage sounds. Base Drum variant.
Seismograf is a PIC based drum module featuring coding by Jetroid.
There is currently a choice of two PICs which may be used with Seismograf, "BD" and "SD"

• Sound 1   808
• Sound 2   808
• Sound 3   909
• Sound 4   SDSV
• Sound 5   LM1
• Sound 6   DMX
• Sound 7   CR78
• Sound 8   DRUMTRAKS

 

Technical Information

Power: 30mA @ +12V / 2mA@ -12V

Width: 4 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Seismograf BD

54,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Seismograf SD

Versatile Drum module with 8 vintage sounds. Snare Drum variant.
Seismograf is a PIC based drum module featuring coding by Jetroid.
There is currently a choice of two PICs which may be used with Seismograf, "BD" and "SD"

• Sound 1   808
• Sound 2   808
• Sound 3   909
• Sound 4   SDSV
• Sound 5   LM1
• Sound 6   DMX
• Sound 7   CR78
• Sound 8   DR55

 

Technical Information

Power: 30mA @ +12V / 2mA@ -12V

Width: 4 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Seismograf SD

54,00 €

  • 0,1 kg
  • Sold out at the moment

Frequency Central - Stasis Leak

DSP based stereo chorus/tap delay/plate reverb module.
Stasis Leak is a 6HP 48kHz DSP effects module, providing a choice of stereo chorus, stereo plate reverb and tap tempo delay.
Stasis Leak is based around a Belton ABE-FX sub board, which in turn is based around a Coolaudio V1000 chip.

 

Technical Information

Power: 96mA @ +12V / 14mA@ -12V

Width: 6 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Stasis Leak

72,00 €

  • 0,1 kg
  • Sold out at the moment

Frequency Central - State 700 VCF

Variable Filter Roland style

Based on the Roland System 700 state variable filter module. Lowpass, bandpass and highpass outputs. A big part of the sound of the State 700 is the way in which resonance is reduced as the audio inputs are driven harder. It won’t self oscillate with a hot audio input, throttle back a little and you’ll get squelchy ear bleeding resonances!

Here is a Video about it.

 

Technical Information

Power: 8mA @ +12V / 9mA @ -12V
Width: 10 HP
Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

 

Frequency Central - State 700 VCF

85,00 €

  • 0,17 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - System X ENV

Envelope Generator

Based on the Roland System 100M 140 ADSR. “The snappiest ADSR in the world”.

Technical Information

Power: 7mA @ +12V / 7mA @ -12V
Width: 4 HP
Depth: 45mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: medium

 

Frequency Central - System X ENV

60,00 €

  • 0,1 kg
  • Sold out at the moment

Frequency Central - Trans Europa

Trans Europa is a CV processor/generator Module


Features
• Octave switching over 9 octaves
• Voltage controlled octave switching, CV input is bipolar +/-5V
• Semitone transposition over 1 octave
• Voltage controlled semitone transposition, CV input is bipolar +/-5V
• 8 Modes (see below)
• Glide feature, which can be applied either manually or by external gate.
• CV thru, you can patch a 1V/oct voltage source in Trans Europa’s Input, it will be replicated at the Output, with the benefit that all Trans Europa’s features can be applied.

Modes
• Semitones
• Minor 7th
• Major 7th
• Rick’s Chord
• First Fourth Fifth
• Diminished
• Sustained A
• Sustained B

 

Technical Information

Power: 19mA @ +12V / 16mA@ -12V

Width: 10 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Trans Europa

62,00 €

  • 0,17 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Ultra Wave

Ultra Wave is a fully expanded version of the Wave Runner LFO.
It’s a multi-waveform sync-able LFO based on the Electric Druid TAPLFO2D family of code, but with some significant additions and improvements.
The WAVERUNNER 1 PIC and code is exclusive to Frequency Central and was developed specifically for the Wave Runner/Ultra Wave, and is not compatible with similar modules.

Ultra Wave has both manual and CV control of frequency, clock multiple, waveform and wave distortion. Additionally there’s sync input and output level CV input. Two outputs, LFO and clock.

 

Technical Information

Power: 20mA @ +12V / 20mA@ -12V

Width: 10 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Ultra Wave

92,00 €

  • 0,17 kg
  • Available
  • Ships within 3-5 days1

Frequency Central - Xvco

XVCO - Oscilator
XVCO TWO is essentially the Roland 100M VCO adapted to Euro.
There are individual outputs for ramp, square and triangle – an improvement on the original.

The six position rotary switch for octaves gives the oscillator plenty of range, with a pitch control to fine tune.

An internal LFO (thanks MC202) can be used to introduce FM and/or PWM. Super!
We’ve spent a lot of time tweaking the levels of the waveforms relative to 0V to take into account Euro’s +/-12V supply (instead of the 100M’s +/-15V supply).
Care has been taken to set XVCO TWO so that it needs only minimal tweaking of the trimmers for scaling.

It’s easy to set up without recourse to ‘scopes, frequency counters, and precision reference oscillators! Accurate up to 7 octave too!

 

Technical Information

Power: 29mA @ +12V / 60mA@ -12V

Width: 10 HP

Depth: 35mm

Including white knobs

 

This is a Do-It-Yourself kit, not an assembled module.

Building instructions can be found here.

 

DIY level: easy

Frequency Central - Xvco

92,00 €

  • 0,1 kg
  • Available
  • Ships within 3-5 days1