4 layers60 × 100 mm
4 layers35 × 100 mm
Numitroncontrol
aelevine99/NumitronClock- Size
- 35 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 34
- Pads
- 71
- Tracks, vias
- 95, 10
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Jul 2024
- Updated
- 31 Jul 2025
Overview
Numitroncontrol is an open-source printed circuit board by aelevine99, from the aelevine99/NumitronClock repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 35 × 100 mm with 12 parts on 34 nets, routed with 95 tracks and 10 vias.
Its parts include 6 connectors, 2 resistors and 1 IC. It belongs with the RP2040 and AVR (ATmega, ATtiny) boards of this library.
README
README.mdNumitronClock
Project Overview
This project uses soviet IV-12 tubes (they were easier to find than actual Numitrons) for a fun, retro-inspired desk clock. The project is split into two main parts for modularity: a breakout board that can drive 2 tubes, and a control board with 2 outputs for breakout boards. I will update this description and provide documentation as the project evolves.
NUMITRONS!
"Advert for RCA NUMITRON Display Devices". Electronic Design. 22 (12). Hayden: 163. 1974-06-07.
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x06 | Library:61200821621 | J1, J2 |
| 1 | 3.3 kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 390 Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | Arduino_Nano_RP2040_Connect_Socket | PCM_arduino-library:Arduino_Nano_Every_Socket | A1 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | LM317_TO-220 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizontal | J0 |
| 1 | Screw_Terminal_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
The 10 most common of 12 parts.
Questions
How big is the Numitroncontrol PCB?
It measures 35 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Numitroncontrol use?
12 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 Numitroncontrol KiCad files?
From the aelevine99/NumitronClock repository on GitHub, at the commit this page was made from: the board is controller/numitroncontrol.kicad_pcb and its schematic controller/numitroncontrol.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Numitroncontrol design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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