2 layers152 × 88 mm
RFBitBangSMT
profdc9/RFBitBanger
A QRP digital transceiver created from readily available parts for off-the-grid maintenance
271 parts222
2 layers70 × 30 mm
EBOW
Aryanaut/EBOWSchematics for the EBOW
- Size
- 70 × 30 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 11
- Pads
- 38
- Tracks, vias
- 63, 4
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Feb 2025
- Updated
- 12 Sep 2025
Overview
EBOW is an open-source printed circuit board by Aryanaut, from the Aryanaut/EBOW repository on GitHub. It is a 2-layer board of 70 × 30 mm with 18 parts on 11 nets, routed with 63 tracks and 4 vias.
It is built around the LM386. Its parts include 5 capacitors, 2 resistors, 2 inductors, 1 IC and 1 diode.
Main components
1README
README.mdEBOW
Schematics for the EBOW
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Fiducial | Fiducial:Fiducial_0.5mm_Mask1.5mm | FID1, FID2, FID3 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C4 |
| 2 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2 |
| 1 | 0.033uF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 12.1mH | audiostuff:Inductor | L2 |
| 1 | 165K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R4 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 200uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C5 |
| 1 | 45mH | audiostuff:Inductor | L1 |
| 1 | Battery | audiostuff:battery_connector_9v | BT1 |
| 1 | LED | LED_THT:LED_D5.0mm_Horizontal_O6.35mm_Z15.0mm | D1 |
| 1 | LM386 | audiostuff:lm386-smd | U1 |
| 1 | SW_SPDT | audiostuff:switch-2-mode | SW1 |
Questions
How big is the EBOW PCB?
It measures 70 × 30 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EBOW use?
18 parts, built around the LM386. 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 EBOW KiCad files?
From the Aryanaut/EBOW repository on GitHub, at the commit this page was made from: the board is schematics/ebow/ebow.kicad_pcb and its schematic schematics/ebow/ebow.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EBOW design in my own project?
Its repository states no licence, so its author keeps all rights: ask Aryanaut before reusing the design.
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