by Tube Hobby

Price: TBD currently $300 on eBay


Tube Hobbie Nixie Clock

Tube Hobby has a handsome, fully assembled IN-18 clock with a wooden base for sale on eBay.  The current price is just under $300 with 4 days left on the auction.  Below are the specs provided in the auction but please visit the ebay link below to learn more.  They have provided links to the data sheets and the user manual at the bottom of the auction.

Technical data:


  • Time display
    • 12-hour mode
    • 24-hour mode
    • Programmable leading zero suppression
    • Programmable DST correction (Including updated DST rules for USA and Canada in 2007)
  • Date display
    • DD/MM/YY mode
    • MM/DD/YY mode
    • Leap year correction
  • Programmable tubes shut-down during night time
  • Smooth crossfading with selectable deep
  • Three visual effects
  • Selectable automatic date show
  • Selectable refresh rate of tubes
  • Tube's lifetime counter (16-bit)
  • GPS time and date synchronization (GPS receiver is optional)
  • Selectable time-zone
  • Cathode poisoning prevention


  • Sandwich type design
  • Microchip PIC16F876A main controller running at 20MHz
  • Real Time Clock with battery back-up (CR2032 Lithium battery)
  • Tube's drive mode: 3x2 multiplex (barely perceptible buzzing from tubes may be audible)
  • High voltage power supply with PWM control and software shut-down. Adjustable brightness
  • RS232 levels serial input
  • 2 pushbuttons
  • Power supply: 9-12V @ 800-2000mA DC; 5.5/2.1mm jack with positive inner
  • Incorrect polarity protection
  • High precision (10ppm) timebase XTAL (32.768KHz)





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