

Chops
KiCad schematics for the channel operation audio circuits
- Size
- 100.2 × 30 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 10
- Pads
- 33
- Tracks, vias
- 9, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Oct 2025
- Updated
- 28 Oct 2025
Overview
Chops is an open-source printed circuit board by RaphaelPour, from the RaphaelPour/chops repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 100.2 × 30 mm with 8 parts on 10 nets, routed with 9 tracks and 0 vias.
Its parts include 2 connectors, 1 capacitor and 1 switch.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965 | H1, H2, H3 |
| 1 | AC-Coupling | Capacitor_THT:C_Disc_D12.5mm_W5.0mm_P7.50mm | C1 |
| 1 | Attenuator | slider:PS45M0MC2BR10KN | RV1 |
| 1 | Audio In | Connector_Audio:Jack_3.5mm_CUI_SJ1-3523N_Horizontal | J1 |
| 1 | Audio Out | Connector_Audio:Jack_3.5mm_CUI_SJ1-3523N_Horizontal | J2 |
| 1 | Mute | Button_Switch_THT:SW_PUSH_E-Switch_FS5700DP_DPDT | SW1 |
Questions
How big is the Chops PCB?
It measures 100.2 × 30 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Chops use?
8 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 Chops KiCad files?
From the RaphaelPour/chops repository on GitHub, at the commit this page was made from: the board is mute/chops.kicad_pcb and its schematic mute/chops.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Chops design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from RaphaelPour/chops
1- 2 layers97.4 × 29 mm

Similar boards
- 2 layers20.5 × 24.8 mm

- 2 layers14.4 × 10.5 mm

OSO SWAB B1-00 Sensor Watch Accelerometer
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
8 parts2.1k - 2 layers7.9 × 39.1 mm

Brain board STM32F407 SD wing it
rusefi/rusefi
rusefi - GPL internal combustion engine control unit
8 parts1.2k - 2 layers59.9 × 25.7 mm

Buffer
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
8 parts1kGPL-3.0 - 2 layers52 × 12.6 mm

USB
shanteacontrols/OpenDeck
A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.
8 parts960Apache-2.0 - 2 layers87.5 × 48.5 mm

7 input macropad
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
8 parts915 - 2 layers36.2 × 63.1 mm

PicoMemcard pico
dangiu/PicoMemcard
Emulating PSX Memory Card (or controller) using a Raspberry Pi Pico
8 parts694GPL-3.0 - 2 layers36 × 10 mm

PCB4-PWR BTN Rev.A
OLIMEX/DIY-LAPTOP
Do It Yourself Open Source Hardware and Software Modular Hacker's Friendly Laptop
8 parts578Apache-2.0