Model "Divergence Meter" use vintage - Z5660 hugest mass-produced digital Nixie tubes.
PCB design, schematic, housing and software made by GRA & AFCH.

Listing includes fully assembled Nixie Tubes Clock Nixie on tubes Z5660 tubes, power supply 230V-110V to 12V, 1A.

This Nixie clock compatible with Arduino Uno, so it allows you to write your own unique programs on the Arduino platform, the latest sources are always available on github at the "NixeClock" repository.

GRA AND AFCH Nixie Clocks KEY Features:

• Our Nixie Clocks use HV5122PJ chip - it provides high brightness in multiplexing mode in comparison with HV5812 chip and greater reliability compared to legacy K155ID1.
• Flexible platform, that support any* Nixie Tubes (You can replace it to any our tubes board on IN-14, IN-18 or others, see our listings);
• Easy operations;
• It is easy to modify the clock's program for your tasks, due to the open Arduino platform;
• Fast upload new firmware via USB;
• Always newest firmware on GitHub;
• You will not have problems with drivers on Windows and MAC, we use only the genuine FT232 USB chip;
• High PCB quality, Japanese aluminum capacitors (Nichicon, Panasonic);
• Self-test on power-up;
• Technical support.

Software Features:

• 12/24 hour format.
• Date format: DD:MM:YY
• Unique RGB LEDs backlight with 16,7 million colors.
• Very easy to switch LEDS off/on or set desired color.
• Music alarm sound in standard RTTTL (Nokia format) melodies, so You can easy change it. (included songs: "Mission Impossible", "We wish you" and etc.).
• Easy updating firmware via USB using Arduino IDE or GRA & AFCH Firmware flasher.
• High precision real time keeping chip - DS3231.
• Software based on Arduino sketch, so MCU has Arduino bootloader within.
• Power On Self-Test (POST): LEDs test, tubes test, input voltage test, sound test.
• Keep time counting while power off.
• All setting stored to non-volatile memory.
• Antipoisoning effect implemented as "Slot Machine"