2 layers52.5 × 36.6 mm
ESP8266-WebRadio
karawin/Ka-Radio
A wifi webradio with only low cost boards ESP8266 and VS1053 by Jp Cocatrix
52 parts453
2 layers58.5 × 20 mm
Filtering
TanmayChhatbar/filteringPCBs to explain basics of filtering
- Size
- 58.5 × 20 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 20
- Pads
- 50
- Tracks, vias
- 81, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Jan 2026
- Updated
- 5 Nov 2026
Overview
Filtering is an open-source printed circuit board by TanmayChhatbar, from the TanmayChhatbar/filtering repository on GitHub. It is a 2-layer board of 58.5 × 20 mm with 15 parts on 20 nets, routed with 81 tracks and 2 vias.
It is built around the NE5532. Its parts include 9 capacitors, 4 connectors and 2 ICs.
Main components
1README
README.mdFiltering Concepts PCB
This repository contains resources for a PCB project designed to help students understand basic filtering concepts in electronics.
https://github.com/user-attachments/assets/0b66fcd6-6c55-42dc-a5e1-664c0480170c
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Conn_01x02_Socket | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | C1/R3, C2, R1, R2, R3/C1, R4 |
| 3 | 150uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C3, C4 |
| 2 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2, J4 |
| 2 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J1, J3 |
| 1 | LTC660 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | NE5532 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
Questions
How big is the Filtering PCB?
It measures 58.5 × 20 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Filtering use?
15 parts, built around the NE5532. 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 Filtering KiCad files?
From the TanmayChhatbar/filtering repository on GitHub, at the commit this page was made from: the board is filtering.kicad_pcb and its schematic filtering.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Filtering design in my own project?
Its repository states no licence, so its author keeps all rights: ask TanmayChhatbar before reusing the design.
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