2 layers140.5 × 30 mm
Type e
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
16 parts3kApache-2.0
2 layers
SPGA PU
bismarx-v1/SPGA1Self playing guitar with a built in amplifier
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 12
- Pads
- 44
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Jun 2025
- Updated
- 14 Jul 2025
Overview
SPGA PU is an open-source printed circuit board by bismarx-v1, from the bismarx-v1/SPGA repository on GitHub. It is a 2-layer board with 16 parts on 12 nets.
Its parts include 6 resistors, 4 capacitors and 1 transistor. It belongs with the audio and music boards of this library.
README
README.mdSPGA
Self playing guitar with a built in amplifier
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R12, R13, R24, R25, R26 |
| 3 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C23, C26, C27 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP12, TP14, TP16 |
| 2 | Mounting Hole M3 | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2 |
| 1 | 10uF | Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder | C22 |
| 1 | NMOS | Package_TO_SOT_SMD:SOT-23-3 | Q3 |
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Questions
What parts does the SPGA PU use?
16 parts. 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 SPGA PU KiCad files?
From the bismarx-v1/SPGA repository on GitHub, at the commit this page was made from: the board is SPGA_PU/SPGA_PU.kicad_pcb and its schematic SPGA_Amp/SPGA_Amp.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SPGA PU design in my own project?
Its repository states no licence, so its author keeps all rights: ask bismarx-v1 before reusing the design.