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Driving two Nixie tubes with an Arduino via a shift register and two SN74141s.

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Nixie tubes are really cool looking and are becoming quite popular for their 'retro' look. Although there are a number of tutorials out there on using nixie tubes and some nice pre-packaged units (see these nice ones from ogi lumen and ArduiNIX) I hadn't seen a simple tutorial on running them using a shift register like the SN74HC595. This would use the minimum number of Arduino pins as it can run as a serial device. Another nice addition is the use of the SN74141 BCD to decimal decoder/driver chip. This chip allows direct control of the Nixie tubes from the shift registers without the use of individual transistors for each numeral. An added benefit to using shift registers is that additional pairs of Nixie tubes can be added without using any more Arduino output pins. They just get daisy chained to the first set.

WARNING: Nixie tubes require a high voltage power supply, typically 150-180 volts. This is enough voltage to hurt you. Please make sure you know what you are doing.

Note: please let me know of any typos/errors/comments so I can continue to improve this Instructable.
I'd also appreciate it if you'd vote for me in the contest. Thanks.
 
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brmarcum26 days ago

I just got some tubes so this is something I will be doing.

lmperkins (author)  brmarcum26 days ago
Great! Post a photo when you are finished with the project!
JJM1014 months ago

Thanks! Great tutorial

tvan aken11 year ago
Where you got the nixie tubes?
lmperkins (author)  tvan aken11 year ago
I got them on eBay. See the link in step two.
Honus1 year ago
Very cool. I've been wanting to play around with some Nixie tubes and this is just what I needed- thanks!
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