2 layers268.6 × 134.5 mm
2 layers120 × 128.5 mm
- Size
- 120 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 30
- Pads
- 120
- Tracks, vias
- 117, 5
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Nov 2025
- Updated
- 25 Oct 2026
Overview
Mix4 is an open-source printed circuit board by jehoz, from the jehoz/modular-synth repository on GitHub. It is a 2-layer board of 120 × 128.5 mm with 39 parts on 30 nets, routed with 117 tracks and 5 vias.
Its parts include 12 connectors, 9 resistors, 6 capacitors, 2 diodes and 1 IC.
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6 |
| 5 | B100K | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV1, RV2, RV3, RV4, RV5 |
| 4 | 0.1uF | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C3, C4, C5, C6 |
| 2 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R9 |
| 2 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 2 | 47uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1, C2 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6, J8 |
| 2 | ~ | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J7, J9 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J11 |
| 1 | Input A | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J1 |
| 1 | Input B | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J2 |
| 1 | Input C | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J3 |
| 1 | Input D | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J4 |
| 1 | Mix Out | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J5 |
| 1 | Power Connector | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J12 |
| 1 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket | U1 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J10 |
The 35 most common of 39 parts.
Questions
How big is the Mix4 PCB?
It measures 120 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mix4 use?
39 parts. 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 Mix4 KiCad files?
From the jehoz/modular-synth repository on GitHub, at the commit this page was made from: the board is mix4/mix4.kicad_pcb and its schematic 2164_vca/2164_vca.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mix4 design in my own project?
Its repository states no licence, so its author keeps all rights: ask jehoz before reusing the design.
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