2 layers148 × 84.5 mm
Panel daisy
ohmtech-rdi/eurorack-blocks
Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust
259 parts410
2 layers52 × 110 mm
A Basic Eurorack 10 Step Sequencer
- Size
- 52 × 110 mm
- Copper layers
- 2
- Thickness
- 1.58 mm
- Parts
- 73
- Nets
- 70
- Pads
- 220
- Tracks, vias
- 443, 32
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Mar 2026
- Updated
- 7 Apr 2026
Overview
Sequencer is an open-source printed circuit board by cbwhickstein, from the cbwhickstein/Basic_Eurorack_Sequencer repository on GitHub, published under the MIT licence. It is a 2-layer board of 52 × 110 mm with 73 parts on 70 nets, routed with 443 tracks and 32 vias.
It is built around the TL072. Its parts include 37 resistors, 11 diodes, 6 ICs, 2 connectors and 1 capacitor.
Main components
1README
Readme.mdEurorack CD4017 10-Steps Sequencer
This Repo containes a simple 10 Step sequencer for the Eurorack Modular standard.
Schematic
PCB
Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R10, R11, R12, R13, R14, R25, R26, R27, R28, R29, R30, R31, R32, R33 +8 |
| 11 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 |
| 11 | LED | Diode_THT:D_DO-34_SOD68_P2.54mm_Vertical_AnodeUp | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11 |
| 10 | 10k | Project_Footprints:Potis | RV3, RV4, RV5, RV6, RV7, RV8, RV9, RV10, RV11, RV12 |
| 3 | TL072 | Package_DIP:DIP-8_W7.62mm | U1, U5, U6 |
| 2 | LOGO | LOGO | G***, G*** |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm | U3, U4 |
| 1 | 1M | Project_Footprints:Potis | RV2 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R37 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 20k | Potentiometer_THT:Potentiometer_Piher_PT-6-V_Vertical | RV13 |
| 1 | 33k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R36 |
| 1 | 4017 | Package_DIP:DIP-16_W7.62mm | U2 |
| 1 | 5k | Potentiometer_THT:Potentiometer_Piher_PT-6-V_Vertical | RV1 |
| 1 | AudioJack | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J2 |
| 1 | Eurorack Power | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H4.3_APEM_MJTP1243 | SW1 |
Questions
How big is the Sequencer PCB?
It measures 52 × 110 mm and has 2 copper layers, 1.58 mm thick.
What parts does the Sequencer use?
73 parts, built around the TL072. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Sequencer KiCad files?
From the cbwhickstein/Basic_Eurorack_Sequencer repository on GitHub, at the commit this page was made from: the board is KiCad/Sequencer/Sequencer.kicad_pcb and its schematic KiCad/Sequencer/Sequencer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sequencer design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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