2 layers114.3 × 25.4 mm
Ir transmitter
adeboni/electronics
This repository stores code for various electronics projects I've made
92 parts
2 layers100 × 62 mm
Looper
adeboni/electronicsThis repository stores code for various electronics projects I've made
- Size
- 100 × 62 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 54
- Pads
- 189
- Tracks, vias
- 259, 11
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 26 Jun 2019
- Updated
- 19 Nov 2025
Overview
Looper is an open-source printed circuit board by adeboni, from the adeboni/electronics repository on GitHub. It is a 2-layer board of 100 × 62 mm with 63 parts on 54 nets, routed with 259 tracks and 11 vias.
It is built around the TL072, CD4001BM and 1N4148W, with the B10K and SM4007 among its other parts. Its parts include 22 resistors, 20 capacitors, 7 connectors, 5 ICs and 5 diodes.
Main components
5
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
CD4001BM
SOP-14-55℃~+125℃ 1.5V、3V、4V 2 3.5V、7V、11V 3V~15V 4 4.2mA 4.2mA 4.95V、9.95V、14.95V 50mV、50mV、50mV 70ns@15V,50pF CD4 NOR Gate SOP-14 Logic Gates ROHSSlkorLogic Gates
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching DiodesB10K
RES-TH_RK10J12E002LTH-3P SMT ROHSJLCPCB AssemblyUncategorised
SM4007
MELFMELF Diodes - General Purpose ROHSYONGYUTAIDiodes - General Purpose
README
README.mdThis repository stores code for various electronics projects I've made
- Wasp Cannon: A wifi-enabled water cannon for shooting water at wasps on my balcony
- CV Glove: A glove with flex sensors on fingers that output control voltages for eurorack modules
- Critter Coat: A coat with fluttering butterflies on it
- AQI Monitor: Simple air quality monitor using a Honeywell HPM sensors
- Atari Controller: Custom Atari 2600 controller with an analog joystick
- Camera Remote: Wireless camera shutter control
- Gas Sensor: A generic MQ gas sensor board with LED indicators
- PS2 Drone Controller: Lets you control quadcopters with a Bluetooth PS2 controller
- WH24 Rachio Adapter: A 915 MHz radio that can receive and parse packets from an Ambient Weather Station and control the rain sensor input on a Rachio irrigation controller
- Scrubotron: A tape head amplifier for use with tape head wands
- Mega Trackball: Adapter PCBs for a bowling-ball sized trackball mouse
- Reverb Pedal: Custom reverb guitar pedal based on a PT2399
- Looper Pedal: Custom looper guitar pedal based on an ISD1000 series voice recorder
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8, C12, C13, C14, C18, C20 |
| 11 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R5, R6, R7, R9, R10, R14, R15, R19, R20, R22 |
| 3 | 10u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C9, C10, C19 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R2, R13, R18 |
| 3 | 47k | Resistor_SMD:R_0603_1608Metric | R1, R11, R21 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | 22k | Resistor_SMD:R_0603_1608Metric | R8, R17 |
| 2 | 470k | Resistor_SMD:R_0603_1608Metric | R4, R16 |
| 2 | B50k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV2, RV4 |
| 2 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U4 |
| 1 | 100u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C11 |
| 1 | 1u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C15 |
| 1 | 22 | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 220n | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 22n | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | A100k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV3 |
| 1 | B10k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1 |
| 1 | CD4001BM | Package_SO:SO-14_3.9x8.65mm_P1.27mm | U3 |
| 1 | DTUNE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | EN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | GREEN | LED_THT:LED_D5.0mm | D3 |
| 1 | IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | L78L05_SOT89 | Package_TO_SOT_SMD:SOT-89-3 | U5 |
| 1 | OUT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | P/R | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | RED | LED_THT:LED_D5.0mm | D5 |
| 1 | SAFE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | SM4007 | Diode_SMD:D_SOD-123F | D4 |
| 1 | ~ | Package_DIP:DIP-28_W15.24mm_LongPads | U2 |
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Questions
How big is the Looper PCB?
It measures 100 × 62 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Looper use?
63 parts, built around the TL072, CD4001BM, 1N4148W and B10K. 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 Looper KiCad files?
From the adeboni/electronics repository on GitHub, at the commit this page was made from: the board is looper_pedal/looper.kicad_pcb and its schematic alien_screamer/alien_screamer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Looper design in my own project?
Its repository states no licence, so its author keeps all rights: ask adeboni before reusing the design.