4 layers29.2 × 22.9 mm
4 layers96.5 × 37.5 mm
Input Output Switch
jakeson21/8-Band-EQEight band analog EQ
- Size
- 96.5 × 37.5 mm
- Copper layers
- 4
- Thickness
- 1.54 mm
- Parts
- 81
- Nets
- 36
- Pads
- 170
- Tracks, vias
- 284, 42
- Pours
- 207
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 Nov 2024
- Updated
- 23 Aug 2025
Overview
Input Output Switch is an open-source printed circuit board by jakeson21, from the jakeson21/8-Band-EQ repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 96.5 × 37.5 mm with 81 parts on 36 nets, routed with 284 tracks and 42 vias.
It is built around the TL072 and B3B-XH-A. Its parts include 24 capacitors, 24 resistors, 6 connectors, 5 diodes and 4 transistors.
Main components
2README
README.md8-Band-EQ
Eight band analog EQ
Parts
81| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2, TP3, TP6, TP7, TP9, TP10, TP11, TP13, TP14, TPG1, TPG2, TPG3, TPG4 |
| 7 | 1M | Resistor_SMD:R_0805_2012Metric | R9, R11, R12, R13, R17, R21, R23 |
| 6 | 56K | Resistor_SMD:R_0805_2012Metric | R14, R15, R16, R18, R19, R20 |
| 5 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C4, C5, C18, C20, C21 |
| 4 | 0.1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7, C22, C23 |
| 4 | 10K | Resistor_SMD:R_0805_2012Metric | R1, R4, R5, R8 |
| 2 | 10u | Capacitor_SMD:CP_Elec_4x5.4 | C1, C17 |
| 2 | 1N914/1N4148 | Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp | D1, D2 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8, C9 |
| 2 | 2.2K | Resistor_SMD:R_0805_2012Metric | R2, R24 |
| 2 | 220p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13, C14 |
| 2 | 22n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11, C16 |
| 2 | 2N4401D75ZCT-ND | Package_TO_SOT_THT:TO-92_Inline_Wide | Q2, Q4 |
| 2 | 3.3K | Resistor_SMD:R_0805_2012Metric | R6, R7 |
| 2 | 470p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C12, C15 |
| 2 | A-6730 | Project_Library:Jack_6.35mm_Neutrik_NMJ4HFD2_Horizontal | J2, J3 |
| 2 | B3B-XH-A | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J1, J8 |
| 2 | MMBF4393LT1G | Package_TO_SOT_SMD:SOT-23-3 | Q1, Q3 |
| 1 | 0.22u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 1 | 1.5-2V | LED_THT:LED_D3.0mm_Clear | D4 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 100u | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C24 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D5 |
| 1 | 1n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 1 | 270p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3 |
| 1 | 296-TL072HIDRCT-ND | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | 4.7K | Resistor_SMD:R_0805_2012Metric | R22 |
| 1 | 470K | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 47u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C19 |
| 1 | 5.6V ZENER EDZVT2R5.6B | Diode_SMD:D_SOD-523 | D3 |
| 1 | A-4118 | Connector_BarrelJack:BarrelJack_Horizontal | J4 |
| 1 | Gain | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | SW_Push | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | SW1 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | ~ | Project_Library:Hammond_1444-542 | Case1 |
More from jakeson21/8-Band-EQ
2- 4 layers91.4 × 19 mm
Similar boards
- 2 layers100 × 85 mm
Amp routed REVIEW
kristian61/op-amp
Projektet ligger i pcbreview/. Åbn pcbreview/amproutedREVIEW.kicadpro i KiCad 10 eller nyere. Behold hele mappen med de medfølgende biblioteker.
142 parts - 2 layers178.2 × 110.9 mm
LegRobotBoardTeensy
01binary/str1ker
A human-scale mech integrated with Robot Operating System
179 parts20 - 2 layers24 × 27.9 mm
- 4 layers50 × 80 mm
ARGOS DEMO
CNES/argos-demo-board
Demo board designed to use the ARRIBADA SMD module via USB to send ARGOS messages to the Kineis constellation.
91 parts7CERN-OHL-S-2.0 - 10 layers30.6 × 65 mm
EffectiveRangeHat simple
EffectiveRange/pcb-mrhat
PCB project for MrHAT RPi extension hat project
117 parts2 - 2 layers24 × 27.9 mm
- 4 layers112 × 90 mm
Nova pcb v6 power v2
Ace2932/Fennec
This project is a heavily modified fork of the open-source NovaSM3 quadruped, redesigned to serve as a research platform for embodied AI.
61 parts1MIT - 2 layers50.8 × 50.1 mm
Glove Footprint Rev2.0
bhageneder/GesticulatuionMobileManipulator
Embedded Engineering Project Summer 2024
43 parts1
Questions
How big is the Input Output Switch PCB?
It measures 96.5 × 37.5 mm and has 4 copper layers, 1.54 mm thick.
What parts does the Input Output Switch use?
81 parts, built around the TL072 and B3B-XH-A. 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 Input Output Switch KiCad files?
From the jakeson21/8-Band-EQ repository on GitHub, at the commit this page was made from: the board is Input_Output_Switch/Input_Output_Switch.kicad_pcb and its schematic 2-Band-EQ-Board/2-Band-EQ-Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Input Output Switch 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).