2 layers203.2 × 76.2 mm
Power supply and io board
JordanAceto/micro_ox
Monosynth with analog signal path and digital controls. SSI2130 VCOs and SSI2140 VCF.
45 parts8CC-BY-4.0
2 layers
JackFxTx
Linkernel0x/JackFxA little project made of two parts: - TX: You plug this in a bass or electric guitar - RX: You plug this into the amplifier
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 71
- Pads
- 208
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 15 Sep 2026
- Updated
- 10 Oct 2026
Overview
JackFxTx is an open-source printed circuit board by Linkernel0x, from the Linkernel0x/JackFx repository on GitHub. It is a 2-layer board with 41 parts on 71 nets.
It is built around the ESP32-S3-WROOM-1-N8, PCM1860DBTR and AP2112K-3.3, with the NRJ6HM-1-AU among its other parts. Its parts include 22 capacitors, 8 resistors, 5 ICs, 3 switches and 2 connectors. It belongs with the ESP32 boards of this library.
Main components
4
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
PCM1860DBTR
TSSOP-30-40℃~+125℃ 192kHz 2 24 3V~3.6V Audio Analog-to-Digital Converter Built-in I2S TSSOP-30 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
NRJ6HM-1-AU
-- Lack of specifications ROHSNeutrikUncategorised
README
README.mdJackFx
A little project made of two parts:
- TX: You plug this in a bass or electric guitar
- RX: You plug this into the amplifier
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C16, C17, C18, C19 |
| 4 | 10 uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C9, C10, C11 |
| 4 | 100 nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C12, C13, C21 |
| 3 | 10 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C20, C22 |
| 2 | 1 uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5 |
| 2 | 10 kR | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R9 |
| 2 | 100 nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C15 |
| 2 | 5.1 kR | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 1 MR | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 100 kR | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 15 kR | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | 18 pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | 22 pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 25 MHz | Crystal:Crystal_HC49-U_Horizontal | Y1 |
| 1 | 4.7 kR | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 47 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C14 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | MCP6001-OT | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | NRJ6HM-1 | Connector_Audio:Jack_6.35mm_Neutrik_NRJ6HM-1_Horizontal | J1 |
| 1 | PCM1860DBT | Package_SO:TSSOP-30_4.4x7.8mm_P0.5mm | U4 |
| 1 | SW_SPDT | Button_Switch_THT:SW_Slide_SPDT_Straight_CK_OS102011MS2Q | SW3 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4085 | J2 |
Questions
What parts does the JackFxTx use?
41 parts, built around the ESP32-S3-WROOM-1-N8, PCM1860DBTR, AP2112K-3.3 and NRJ6HM-1-AU. 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 JackFxTx KiCad files?
From the Linkernel0x/JackFx repository on GitHub, at the commit this page was made from: the board is JackFxTx.kicad_pcb and its schematic JackFxRx.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the JackFxTx design in my own project?
Its repository states no licence, so its author keeps all rights: ask Linkernel0x before reusing the design.
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