2 layers132.1 × 45.7 mm
IPoS
peterheinrich/InternetOverSpaghetti
Transmitting IP packages over a pair of spaghetti thus demonstrating how media independent IP really is.
42 parts342
2 layers46.9 × 41.4 mm
GR Twin T Filter
GadgetReboot/TwinT2Twin T Notch Filter PCB for experimentation
- Size
- 46.9 × 41.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 18
- Pads
- 70
- Tracks, vias
- 129, 11
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 11 Jun 2021
- Updated
- 24 Jun 2021
Overview
GR Twin T Filter is an open-source printed circuit board by GadgetReboot, from the GadgetReboot/TwinT repository on GitHub. It is a 2-layer board of 46.9 × 41.4 mm with 35 parts on 18 nets, routed with 129 tracks and 11 vias.
It is built around the LM358. Its parts include 12 resistors, 8 capacitors, 5 connectors and 1 IC.
Main components
1README
KiCad/readme.mdKiCad Files and Gerbers
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | MH1, MH2, MH3, MH4 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2, TP3, TP4 |
| 3 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J3, J4 |
| 2 | 100nF | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C6, C7 |
| 2 | 18K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R1, R2 |
| 2 | 1M | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R11, R13 |
| 2 | 680nF | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C4, C5 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1, J5 |
| 1 | 100K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R8 |
| 1 | 100r | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R6 |
| 1 | 10K | Potentiometer_THT:Potentiometer_Vishay_T73YP_Vertical | R9 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R10 |
| 1 | 10K | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | R5 |
| 1 | 10n | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C2 |
| 1 | 180K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R3 |
| 1 | 22n | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C3 |
| 1 | 4.7uF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C8 |
| 1 | 4K3 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R12 |
| 1 | 680 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R4 |
| 1 | 6n8 | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C1 |
| 1 | LM358 | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | LOGO | _Custom_Footprints:pcb way logo | G*** |
Questions
How big is the GR Twin T Filter PCB?
It measures 46.9 × 41.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the GR Twin T Filter use?
35 parts, built around the LM358. 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 GR Twin T Filter KiCad files?
From the GadgetReboot/TwinT repository on GitHub, at the commit this page was made from: the board is KiCad/GR_Twin_T_Filter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the GR Twin T Filter design in my own project?
Its repository states no licence, so its author keeps all rights: ask GadgetReboot before reusing the design.
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