Eurorack 3U

4 pole VCF and quadrature oscillator with 0, 90, 180 & 270 degree outputs. The Feague is a 4 pole VCF and quadrature oscillator with 0, 90, 180 & 270 degree outputs. It is based on the design in electronotes 41. It features a lo/hi switch to...

The RYO Penta is a compact 4hp 5-step sequencer for eurorack that's easy to build and low cost, without compromising on our usual quality standards such as buffered output, schmitt triggers on inputs and reverse polarity protection. The Penta is a great...

An easy to build 4-channel amplifying mixer/attenuator with 2.0x gain and 5.0V offset on each channel in an 8hp module. No calibration required.  Ampmix was designed as a handy CV mixer and processor with good precision, high input impedance and...

Based on the Mutable Instruments Ripples. The DIY Ripples kit includes the Eurorack panel, a limited edition PCB (blue w/gold immersion finish), Rogan knobs, Alps potentiometers, all necessary components, mounting hardware and power cable...

The classic thomas henry megapercussive synth- now made easier for synth diy! The bundle includes the main pcb from thomas henry and electro-music.com, the new panel daughterboard pcb from barcode, and a beautiful panel design from papernoise! Euro panel...

This chaos circuit uses a flip flop as the nonlinear element. It has a gate and CV input, three gate outputs which give varying length gates, a trigger output and 2 CV outputs. In this patch the FF Chaos is fed a square wave and a tri wave from 2 LFOs...

RYO boolean logic nand/and, euro, 4hp The NAND/AND module can be patched as two NOT gates, one NOT gate and one 2- or 3-input NAND/AND gate,one 2-input NAND/AND gate and one 2- or 3-input NAND/AND gate or one 4-input NAND/AND gate.  Gate one has...

This module is based on the Arp 1050 mix sequencer. Although this version drops the VCO and push button functions. Using the switches, it is an 8 step sequencer, two 4 step sequencers, an 8 input mixer, 8 stage sequential switch, two 4 stage sequential...

4 channels of digital logic bliss, with love from the 8-bit era. Enough with the analog, warm and organic. Edges is a module strictly focused on the straight lines, sharp edges, and clinical harsh modulations of digital logic. Its architecture is...

Do you ever get tired of using up an LFO or worse yet a VCO just to clock a module? The Tick solved that. It is a simple clock module kit. It has 3 ranges from fast to glacial, with a cool LED to show the range. The module puts out a square...

  RYO Trig Xpander   RYO Trig Xpander is a great VC Sequencer module​. This will give your VC Sequencer 8 individual outputs for each step outputting either a trigger or a gate, selectable with a jumper on the pcb, and a 9th output that gives...