2 layers72.8 × 34.3 mm
2 layers
Sense amp
andrastantos/the_d_machineA transistor-based computer
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 1,978
- Nets
- 1,062
- Pads
- 5,150
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 27 Apr 2025
- Updated
- 5 Nov 2026
Overview
Sense amp is an open-source printed circuit board by andrastantos, from the andrastantos/the_d_machine repository on GitHub. It is a 2-layer board with 1,978 parts on 1,062 nets.
It is built around the BAT54W. Its parts include 960 transistors, 784 resistors and 234 diodes. It belongs with the audio and music boards of this library.
Main components
1README
README.mdtcomp
A transistor-based computer
Parts
1,978| Qty | Value | Footprint | References |
|---|---|---|---|
| 583 | 2N3904 | Package_TO_SOT_SMD:SOT-23-3 | Q10, Q11, Q12, Q100, Q101, Q102, Q104, Q106, Q108, Q112, Q117, Q122, Q123, Q124, Q125, Q126 +567 |
| 377 | 2N3906 | Package_TO_SOT_SMD:SOT-23-3 | Q1, Q103, Q105, Q107, Q109, Q110, Q111, Q113, Q114, Q115, Q116, Q118, Q119, Q120, Q121, Q137 +361 |
| 370 | 220 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11, R12, R101, R102, R103, R104, R107, R108, R109, R110, R113, R114, R119, R120, R121 +354 |
| 283 | 100 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R14, R105, R106, R111, R112, R117, R123, R124, R127, R128, R129, R135, R137, R138, R140 +267 |
| 234 | BAT54W | Package_TO_SOT_SMD:SOT-323_SC-70 | D1, D10, D11, D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112 +218 |
| 131 | 520 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R100, R115, R116, R118, R134, R136, R139, R141, R156, R157, R159, R175, R177, R180, R182 +115 |
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Questions
What parts does the Sense amp use?
1,978 parts, built around the BAT54W. 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 Sense amp KiCad files?
From the andrastantos/the_d_machine repository on GitHub, at the commit this page was made from: the board is modules/sense_amp/sense_amp/sense_amp.kicad_pcb and its schematic circuit_sims/and_or_not/and_or_not.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sense amp design in my own project?
Its repository states no licence, so its author keeps all rights: ask andrastantos before reusing the design.