By Jon Stanley
http://www.electronixandmore.com/project/numitronclk/index.html
Here is a great little single digit Numitron clock based on an RCA DR2100. Jon graciously provides both the schematic and the code for the PIC microprocessor on his site. The clock itself has only the single tube and 4 LEDs to display the time. The leds show what digit the display is currently showing (HHMM).
All images and video are copyright Jon Stanley.
http://www.electronixandmore.com/project/numitronclk/index.html
The TubeClockDB / Tube Clock Database is a collection of nixie clocks, vfd clocks, vacuum fluorescent clocks, crt clocks, scope clocks and oscilloscope clocks. We will feature just about anything: fully assembled clocks ready to purchase, kits, or even individual nixie tubes. If there is something that you think would make this a better resource, please contact us.
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