IN-12 6 Digit Nixie Clock

IN-12 6 Digit Nixie Clock

Availability: In stock

 New HW release is stock, more features, serial interface function !

Re-designed  Nixie Clock, based on IN-12 Russian Nixie Tube.
This clock displays: Time, two Alarm Sets, Date and blank/serial interface info.
Optimal compact design allows you to integrate this clock in furniture at home and/or a small office environment.
It has a simple control panel with only 2 buttons.Like any of our clocks,
the internal buzzer will generate the alarm even if main power is off.
Manual and auto brightness modes, 12/24hours time display, USA/Europe date format

Limited stock, buy  it now! 



Key features:  
  • Fully assembled and tested Nixie Clock without tubes
  • Six 18mm high digits (IN-12 Russian Nixie Tubes)
  • Displays Time , Date, 2 Alarm clock sets and data from serial interface
  • 12/24hours time display
  • USA/EUROPE date  format
  • Manual and auto brightness modes
  • Special thin design for hanging this Clock on the wall
  • Accurate & calibrated time clock source from internal crystal
  • Integrated 2 Alarm Clocks
  • Easy control with only 2 buttons
  • Uses standard 9V wall plug Power Supply
  • Internal backup battery for power failure protection
  • Will generate alarm buzz even main power is off !!!
  • Precision Seconds setup
  • Internal buzzer for Alarm1 and Alarm2
  • Separate Alarm1 and Alarm2 trigger outputs
  • High efficiency integrated on board DC-DC converter
  • Serial interface connection to display data from PC or other device

2 Main Modes: Display Mode and Setup mode

Display mode: In the display Mode Clock indicates the following information:

Time in format HH MM SS , where HH are Hours (00-12 or 00-23), MM is Minutes (00-59), SS is for Seconds (00-59) 
Alarm1 in format HH MM, 1 indicates Alarm1 , where HH is Hours (00-12 or 00-23), MM is Minutes (00-59) 
Alarm2 in format HH MM, 2 indicates Alarm2 , where HH is for Hours (00-12 or 00-23), MM is for Minutes (00-59), SS is for Seconds (00-59) 
Date in format : DD.MM.YY where DD is for Day (1-31), MM is for Month(1-12), YY is for Year (00-99) 

Setup Mode: Setup mode is for changing configurable parameters, allowing:
Set current Time
Set Alarm1 time, switch it on/off Set Alarm2 time, switch it on/off
Set Date
Set 12 or 24 Time Display mode
Set configurable parameters in Config Mode

Newly designed IN-12 Nixie Tube Clock for your attention !
  • Based on IN-12 very popular Nixie tube, made in USSR.
  • Optimal compact, thin design allows to use this clock as wall clock, as well as desktop clock at home or small office environment
  • Reliable, simple to connect and easy to use Clock!
  • High efficiency and low power consumption for energy saving
  • Use it as a Clock on you table or hang it up on the wall or use it as Alarm Clock to wake you up
  • Convenient Time and Date display reading
  • External alarm outputs give you chance to control a wide range external devices ( power control circuit is required)
  • Optional serial interface connection allows to display your data from PC or other device, which has serial interface connection.
    Displays any 6 digit numerical data on your Nixie Clock !
  • Easy control with only 2 buttons ( no remote control is required)
  • Over current and mixed polarity protection.
  • Leap Year automatic date calculation
  • Even tube reliability is high, it's very easy to replace it (no soldering is required)
  • Backup battery is replaceable too.
Specification & recommendation
  • It's fully assembled working  6 digits IN-12 Russian Nixie tube Clock, giving you chance to concentrate your efforts on the case design! Please send me your complete Clock picture, as I am going to create picture gallery on my WEB page.
  • Clock works from 9 to 15V DC, but 9V supply is recommended choice.
  • Power consumption: 2.4W (200mA@12V) from wall plug power supply (all digits to display) 2.3mW (0.75mA@3V) from backup battery ( 3V CR2032).
  • To keep power consumption at low level, do not connect load <100KOhm to the external alarm contact.
  • Internal buzzer generates simple one tone and pause sound in Alarm1 or Alarm2 events. It will last for 1 minute, but could be shut off by pressing the button.
  • External alarm contacts set logical "1" in the alarm event and gives you extra feature allowing to connect quality sound melody generator or any external modules via appropriate converter or power control circuit (not included in this sale)
  • Frequency Test Mode can be activated to easily check and adjust clock frequency. In this mode Clock does not display or keep time and date, for 3 seconds it displays 200000, which means 200KHz, than display switches off and frequency check signal is activated on the dedicated output pin. Use it to check it, if you have calibrated precision frequency meter or use this signal for your calibration purposes.
  • 1 year full warranty.
  • Digit height - 18 mm
  • PCB board size - 35x155mm
  • IN-12 Nixie clock, including IN-12 tubes and button tips - 65x35x155mm
Latest Documentation
  • The latest User Manual is available to download here.
  • Please download Connection Layout Diagram here.
  • If you are going to connect this clock to PC or laptop, please download Rs232 cable pinout you will need to use
  • Please feel free to ask me any questions regarding this Clock. I'll do my best to respond to you within 24 hours.
  • Your design or new function suggestions, improvement are very welcome and will be considered ASAP.
Notice & warning
  • This clock is designed for inside use only. Do not use this Clock outdoor under any circumstances.
  • Some internal components are under High Voltage, before handling or maintenance work, be sure that it's switched off.
  • I do not accept any liability may cause during improper or careless use of this Clock.
  • Due to high voltage on the board, do not use this clock in bathroom, under rain or in the wet and/or dusty conditions.
  • Due to constant improvement, your clock could be slightly different from the described above or shown on the pictures, but technical parameters and functionality will be the same or better than stated above.
For your information
  • Please look at my other items, which I developed for you!
  • Please add my WEB site to your favourites list, as more items will come soon.
  • Next product in my Clock line is EIGHT digits IN-12 Nixie Tube Clock/Counter. Could receive and count any data from PC or other device connected via serial interface. Use it as WEB counter or display CPU/HDD usage, for example. And of cause, it's still Clock with 2 alarms...
When you buy it, following items are included/excluded from this sale:
  • Fully assembled, tested and calibrated IN-12  Nixie Clock, six IN-12 Nixie tubes are  INCLUDED in this sale!
  • To make this Clock functional, Power Adapter is only extra needed. Power Supply is available at extra £7-00 GBP for the UK, Europe or USA Customers.
  • USB to serial connection cable  is NOT included in this sale.
  • Internal synch clock will be calibrated to get the best time accuracy.
  • User Manual and Connection Diagram with detail description how to make this clock functional and how to control your Nixie Clock is downloadable from my WEB site at
  • First Class Signed For Royal Mail delivery. Just small extra delivery charge to post it to Europe or to the USA, Canada.
  • Your Clock will be fully tested, calibrated and well packed before I dispatched to you.
  • I'll dispatch your Clock on the next working day after I receive your payment.

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