The Akafugu Nixie Clock mk3


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Products Desciption

The Akafugu Nixie Clock is a fun to build stylish clock kit that uses old-fashioned neon Nixie tubes.

New in mk3:

  • Socket pins added to the nixie tubes
  • New design for high voltage supply for better efficiency
  • Potentiometer to set voltage dropped and replaced by 1 % resistors
  • Various minor fixes to the routing of all the boards

Nixie tubes were once the dominant type of display in early electronics devices such as multimeters, calculators and military equipment. A nixie tube contains a single anode in the form of a wire mesh and usually ten anodes, generally in the shapes of the numbers 0-9. Nixies with other symbols are also common. By applying around 170-180 volts between a cathode and the anode, the cathode will light up in its characteristic yellow neon glow.

The Akafugu Nixie clock comes in a 3 PCB modular design with a unique look that incorporates the PCB board into the case: The front and back panel are PCB boards, with smoke black acrylic lining the sides. The result is a strikingly simple and compact Nixie clock that combines modern and retro looks.

The clock is controlled and set using an innovative method involving a single push-button rotary controller and three indicator LEDs on the display board.


  • Comes as a kit complete with acrylic case
  • 4 IN-12 Nixie tubes and two orange flat top LED separator dots
  • Selectable RGB backlight for the tubes
  • High-precision DS3231M Real Time Clock for accurate timekeeping
  • Controlled using a push-button rotary controller
  • Dedicated on-off switch for alarm
  • ATMega328P microcontroller with Arduino bootloader
  • Open-source Arduino-based firmware, easy for anyone to understand and modify
  • Controller booard can drive up to 6 digits
Additional Information
  • Manufactured by: Akafugu

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