It is no secret that I like oddball display tubes and today I present to you the National 54362 two digit nixie tube. That’s right, there are two distinct and independently controllable digits inside of this device. On the lefthand side there are standard SI prefixes and on the right side there units – Hz, and Seconds. I am guessing that these were used in some sort of multimeter or counter of some sort. I can’t really find much information on their use but they are fun to play with so I shot another quick video of them.