2 layers199.4 × 50.8 mm
Nixie board
vascofazza/cloxie_nixie_clock
Schematics and code for Cloxie: my Nixie Tube Clock.
85 parts17GPL-3.0
2 layers198.1 × 80.8 mm
IN12NixieClock
MorrisYLin/IN12NixieClock-Hardware2- Size
- 198.1 × 80.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 167
- Nets
- 295
- Pads
- 663
- Tracks, vias
- 1,184, 60
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Sep 2024
- Updated
- 3 Sep 2024
Overview
IN12NixieClock is an open-source printed circuit board by MorrisYLin, from the MorrisYLin/IN12NixieClock-Hardware repository on GitHub. It is a 2-layer board of 198.1 × 80.8 mm with 167 parts on 295 nets, routed with 1,184 tracks and 60 vias.
It is built around the MPSA42. Its parts include 75 resistors, 64 transistors, 10 ICs, 4 capacitors and 2 connectors.
Main components
1README
README.mdIN-12A Nixie Clock Project
Overview
This PCB contains driver circuitry to handle high-voltage nixie tubes, which allows for binary-coded decimal to select the lit digit and independent PWM dimming for each tube. It also handles power conversion from a 12V 2A wall adapter to 170V, 5V, and 3.3V rails for the nixie tubes, development board, and ICs respectively, and accomodates connections to an ESP8266 WiFi module and an EK-TM4C1294XL development board from TI. These were chosen due to their relevance in my courses, and the design may be easily adapted to smaller microcontrollers more fitting for a clock.
Images
Final Result
Front Copper
3D Render
Files
All design was done through KiCAD 8.0, the TaylorElectronics folder includes the footprints & symbols for the TES High-voltage power supply as well as others that are not included in the KiCAD standard library. The nixies_us folder contains footprints and symbols for the nixie tubes, credit to judge2005 from nixies.us.
Parts
167| Qty | Value | Footprint | References |
|---|---|---|---|
| 64 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2, R10, R11, R12, R13, R14, R15, R17, R18, R19, R20, R21, R22, R23, R24, R25 +48 |
| 64 | MPSA42 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23 +48 |
| 6 | 10k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R16, R27, R38, R49, R60, R71 |
| 6 | HEF4028BT,653 | TaylorElectronics:HEF4028BT653 | IC1, IC2, IC3, IC4, IC5, IC6 |
| 6 | IN-12A | nixies-us:nixies-us-IN-12-DSUB | NX1, NX2, NX3, NX4, NX5, NX6 |
| 4 | 0.1uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4 |
| 4 | 150k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R3, R5, R7, R9 |
| 3 | Lamp_Neon | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | NE2, NE3, NE4 |
| 1 | 47k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1 |
| 1 | A1A Lamp | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | NE1 |
| 1 | Barrel_Jack_Switch | TaylorElectronics:694106301002_1 | J1 |
| 1 | Conn_01x08 | Connector_PinSocket_2.54mm:PinSocket_2x04_P2.54mm_Vertical | J2 |
| 1 | OKI-78SR-3.3_1.5-W36-C | Converter_DCDC:Converter_DCDC_Murata_OKI-78SR_Vertical | U3 |
| 1 | OKI-78SR-5_1.5-W36-C | Converter_DCDC:Converter_DCDC_Murata_OKI-78SR_Vertical | U2 |
| 1 | ~ | TaylorElectronics:TES 1363 HVPS Vertical | U4 |
| 1 | ~ | TaylorElectronics:X11 Breadboard Adapter Interface | U1 |
The 165 most common of 167 parts.
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Questions
How big is the IN12NixieClock PCB?
It measures 198.1 × 80.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the IN12NixieClock use?
167 parts, built around the MPSA42. 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 IN12NixieClock KiCad files?
From the MorrisYLin/IN12NixieClock-Hardware repository on GitHub, at the commit this page was made from: the board is IN12NixieClock.kicad_pcb and its schematic IN12NixieClock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the IN12NixieClock design in my own project?
Its repository states no licence, so its author keeps all rights: ask MorrisYLin before reusing the design.