4 digits Micro Nixie Clock with 2 Alarms. Ideal gift!

Key features:

  • Unique and smallest Nixie Clock on the market !
  • Fully assembled and tested Micro Nixie Clock
  • Four only 9mm high digits (IN-17 Nixie Tubes)
  • Displays Time , Date and 2 Alarm clock sets
  • Accurate & calibrated time clock source from internal crystal
  • Integrated 2 Alarm Clocks
  • Easy control with only 2 buttons
  • Uses standard 9V or 12V wall plug Power Supply
  • Precision Seconds setup
  • Internal battery for power failure protection
  • Will generate alarm buzz even main power is off !!!
  • Internal buzzer for Alarm1 and Alarm2
  • Alarm1 trigger output
  • High efficiency integrated DC-DC converter

2 Main Modes: Display Mode and Setup mode

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

Time (Hours & Minutes) in format HH:MM, with flashing colon
where HH is Hours (00-12 or 00-23), MM is Minutes (0-59)
Time (Minutes & Seconds) in format MM:SS, with solid colon
where MM is Minutes (0-59), SS is Seconds (00-59)
Alarm1 in format HH MM, colon is on
where HH is Hours (00-12 or 00-23), MM is Minutes (0-59)
Alarm2 in format HH MM, colon is on
where HH is Hours (00-12 or 00-23), MM is Minutes (0-59)
Date in format : DD.MM,
where DD is day (1-31), MM is Month(1-12)

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

Easy control with only 2 buttons

Time Mode. Hours and Minutes

(colon is blinking):

Time Mode. Minutes and Seconds

(colon is solid on):

Alarm1 or Alarm2 Time Mode:
Date Mode:


Newly designed Micro Nixie Tube Clock for your attention !

  • Unique ! Ideal gift - Newly designed Micro Nixie Clock - the smallest Nixie Clock on the market !
  • Optimal compact design to use in your PC, car, caravan, board, 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 wall or as Alarm Clock to wake you up
  • Colon and dot separator for convenient Time and Date display reading
  • External alarm outputs give you chance to control a wide range external devices ( power control circuit is required)
  • Easy control with only 2 buttons ( no remote control is required)
  • Backup battery to keep you clock running smoothly.
Buy it now, pay by cheque, postal order or credit card via Paypal

  • Just follow the link to get this Clock and other items for sale at www.kosbo.com/forsale
  • Easy and secure way for your payment
  • I do have Paypal business account, feel free to check my status
  • Buy with confidence, check my 100% positive Ebay feedback
  • All credit card payments go via Paypal only, I do not hold your credit card details.
  • Feel free to pay by Postal Order or by cheque, just let me know first by filling in Contact form
  • Tiny, middle and BIG Nixie Clocks, IV-18 VFD Clock, Nixie Power Supply Module, Nixie Tubes, other items & components are for sale
Specification & recommendation

  • It's fully assembled working Nixie 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 7.5 to 15V DC, but 9v or 12V supply is recommended choice
  • Power consumption:
    1.9W (215mA@9V) from wall plug power supply (all 4 digits to display)
    2.3mW (0.75mA@3V) from backup battery ( 3V Panasonic CR2330).
  • When Clock powers up from backup battery, it does not display any information, buy keeps running and activates buzzer in Alarm1 or Alarm2 events.
  • To keep backup 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 2000, 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 - 9 mm.
  • 2 PCB boards, each - 35x60mm
  • Nixie clock, including IN-17 indicators and connector tips - 35x60x50mm
Latest SW and Documentation

  • Please feel free to ask me any questions regarding this Nixie Clock. I'll do my best to respond to you within 12 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 VFD Clock. It will be 8 digits clock on IV-18 Tube
  • Electronics design is my speciality. Please feel free to contact me if you have an idea you want to discuss or
    if you need to develop electronic device.
When you buy it, You will get

  • Fully assembled working Micro Nixie Clock. No power supply is included.
    Power Supply or 12v cigarette lighter adapter for your car/caravan/board is available at extra £4-95 GBP.
  • Internal synch clock will be calibrated to get the best time accuracy.
  • User Manual with detail description how to control your Nixie Clock
  • 1 Year full warranty.

  • 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.
Picture gallery

Click on the picture to enlarge it.

19 hour 33 minutes 33 minutes and 50 seconds Alarm1 at 02:35 Alarm2 at 05:44
IN-17 Micro Nixie Clock - baby and its parent - IN-12 Nixie Clock :

One more photo - How big the Clock is.

Micro Nixie Clock on my fingers :