2 layers167.1 × 363.5 mm
2 layers155.5 × 146.5 mm
Cv mixer
gridbugs/modular2- Size
- 155.5 × 146.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 73
- Nets
- 51
- Pads
- 188
- Tracks, vias
- 305, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 22 Nov 2025
- Updated
- 7 Nov 2026
Overview
Cv mixer is an open-source printed circuit board by gridbugs, from the gridbugs/modular2 repository on GitHub, published under the MIT licence. It is a 2-layer board of 155.5 × 146.5 mm with 73 parts on 51 nets, routed with 305 tracks and 0 vias.
Its parts include 29 connectors, 16 resistors, 2 capacitors and 1 IC. It belongs with the audio and music boards of this library.
README
low-pass-filter/README.mdLow-pass Filter
Quirks
V1
- The "Cutoff" potentiometer is reversed.
Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R9, R10, R11, R12, R13, R14, R15, R16 |
| 12 | 100K | modular2:Potentiometer_Alps_RK09K_Single_Vertical - knob padding | RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8, RV9, RV10, RV11, RV12 |
| 3 | Power | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J17, J18, J19 |
| 2 | 100nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2 |
| 2 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R8 |
| 1 | Conn_01x12_Pin | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J12 |
| 1 | Conn_01x12_Socket | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J10 |
| 1 | Input A1 | modular2:banana-jack | J1 |
| 1 | Input A2 | modular2:banana-jack | J3 |
| 1 | Input A3 | modular2:banana-jack | J5 |
| 1 | Input A4 | modular2:banana-jack | J2 |
| 1 | Input A5 | modular2:banana-jack | J4 |
| 1 | Input B1 | modular2:banana-jack | J7 |
| 1 | Input B2 | modular2:banana-jack | J9 |
| 1 | Input B3 | modular2:banana-jack | J11 |
| 1 | Input B4 | modular2:banana-jack | J6 |
| 1 | Input B5 | modular2:banana-jack | J8 |
| 1 | LOGO | modular2:ibis-small | G*** |
| 1 | Output A | modular2:banana-jack | J14 |
| 1 | Output B | modular2:banana-jack | J16 |
| 1 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket | U1 |
| 1 | Top A | modular2:banana-jack | J13 |
| 1 | Top A1 | modular2:banana-jack | J15 |
| 1 | Top A2 | modular2:banana-jack | J20 |
| 1 | Top A3 | modular2:banana-jack | J21 |
| 1 | Top A4 | modular2:banana-jack | J22 |
| 1 | Top A5 | modular2:banana-jack | J23 |
| 1 | Top B | modular2:banana-jack | J29 |
| 1 | Top B1 | modular2:banana-jack | J28 |
| 1 | Top B2 | modular2:banana-jack | J27 |
| 1 | Top B3 | modular2:banana-jack | J26 |
| 1 | Top B4 | modular2:banana-jack | J25 |
| 1 | Top B5 | modular2:banana-jack | J24 |
The 61 most common of 73 parts.
Questions
How big is the Cv mixer PCB?
It measures 155.5 × 146.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cv mixer use?
73 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 Cv mixer KiCad files?
From the gridbugs/modular2 repository on GitHub, at the commit this page was made from: the board is cv-mixer/cv-mixer.kicad_pcb and its schematic arduino-delay/arduino-delay.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cv mixer 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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