HardLabs

Mystery

thestumbler·apollo-era-card-to-kicad·eda-mystery/mystery.kicad_pcb

Mystery PCB layout, top view — open source board by thestumbler

About the Mystery PCB

Mystery is an open source PCB design by thestumbler, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 189.7 × 124 mm, with 42 components from 27 distinct parts.

By type, the board carries 25 resistors, 7 transistors and 1 connector.

It belongs with the sensors designs in this gallery.

From the project

Apollo Era Card Reverse Engineering Project,

See the accompanying Hackaday writeup about this schematic project:

https://hackaday.com/2024/11/25/apollo-era-pcb-reverse-engineering-to-kicad

This repo documents additional explorations into the reverse engineering effort of an Apollo-era printed circuit board assemly that Skyhawkson obtained earlier this year. See his project at the original repo.

Note: I planned to submit this as a pull request to Skyhawkson's repository. But I ran into trouble with git and spaces in filenames, a problem I haven't seen before.

Mystery, from the project README
From the project README

Mystery bill of materials (BOM)

42 components, 27 distinct parts.

QtyPartRefs
1
2N1305
Q101
1
2N1304
Q102
2
2N1038
Q103, Q104
3
2N697
Q105, Q106, Q107
1
IO_PLUG_M22
P1
3
1N754A
CR101, CR102, CR109
2
1N458
CR103, CR104
3
1N4003
CR105, CR106, CR107
1
1N2625
CR108
2
1K
R101, R102
2
2K
R103, R104
1
450 1%
R105
1
500
R106
1
100
R107
1
39 5%
R108
1
2.5K
R109
1
500 1%
R110
2
1.5K
R111, R119
1
10
R112
1
2.7K 3%
R113
Show 7 more
QtyPartRefs
2
150
R114, R115
2
250
R116, R117
2
10
R118, R123
2
2.5K 3%
R120, R121
1
50
R122
1
1.6K
R124
1
0.1 ???
R125

Mystery design files

The KiCad project lives in the thestumbler/apollo-era-card-to-kicad repository on GitHub; these links point at the commit this page was built from.

Mystery: common questions

How big is the Mystery PCB?

The Mystery measures 189.7 × 124 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mystery?

42 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mystery design files?

From the thestumbler/apollo-era-card-to-kicad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mystery design in my own project?

Yes, under the terms of its GPL-3.0 license, which thestumbler chose for the repository.

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