Adafruit will not be shipping USPS orders Monday February 18, 2019 for the federal holiday, Presidents Day.
Expedited USPS orders placed after 11am ET Friday February 15 will go out Tuesday February 19.
Cool glowing blue tube with 8 digits, PM dot and alarm on/off indicator
Alarm with volume adjust
Precision watch crystal keeps time with under 20ppm (0.0002%) error (< 2 seconds a day)
Clear acrylic enclosure protects clock from you and you from clock
Battery backup will let the clock keep the time for up to 2 weeks without power
Selectable 12h or 24h display
Displays day and date on button press
10 minute snooze
Integrated boost converter so it can run off of standard DC wall adapters, works in any country regardless of mains power
Great for desk or night table use, the clock measures 4.9″ x 2.9″ x 1.3″ (12.5cm x 7.4cm x 3.3cm)
Completely open source hardware and software, ready to be hacked and modded!
Complete kit comes with a 110/220V 9VDC power supply (a $1 plug adapter from your local hardware store will allow it to be used worldwide), all components including PCB, vacuum fluorescent tube, backup battery and a clear acrylic enclosure. Assembly is required! This kit is made of through-hole components but is best built by someone with previous soldering experience as there are many parts and steps.
**Note: This kit is super popular, and the supply of tubes is harder to get. Thus the price is going to increase slowly but surely until the tubes are unavailable & the kit is discontinued. Thanks for your understanding!
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Wonderful kit! It is every bit as good as the Heathkits that I use to build years ago! Excellent instructions and very nice design. I did have an issue with the one bolt that fastens to the VFD tube side of the PCB. The bolt is too large and could possibly short R3 to the push button frame and a couple VFD pins. I used a small nylon spacer in place of the bolt on this end for safe measure. Super fun kit and would recommend this project for anyone interested in electronics!