http://www.tubeclockdb.com/non-clocks/312-nixie-spl-review.html

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 stumbled across this old video of a Charactron tube by General Dynamics.  (It was in my collection so I converted it to a web-friendly formate and hosted it on Vimeo.)  I have a similar tube by Raytheon that acts as a monoscope that works on the same principle.   Hopefully someone else enjoys this video!

Here is another eBay find that I thought was worth sharing.  This is a Wamco alphanumeric minitron display.  It is similar to a numitron in that it is also an incandescent filament display but the packaging is significantly different.  I believe these devices were primarily used in aviation because of their resilience but I’m having troubles backing up that belief with [...]

Well, my vane display post got some Adafruit love and many of my other posts on old display technology have gotten some traffic so here is one more. I love finding antique display technology on eBay and a few days ago I came across a dozen old edge lit displays, also known as lightguide displays. [...]

These are seven segment displays. Each segment is painted a bright yellow and fluoresces under UV light. The segments do not actually draw any power except when they are moved. Behind each segment is a solenoid that flips the segment on or off. Several units are then daisy chained together to form larger numbers.

I just came across a NEO-8000 planar neon display in less-than-perfect condition.  In fact, this is easily the worst condition tube in my entire collection. I’ve never seen the cathodes deteriorate quite like this before.  It looks like a bad horror-syfy-original-movie digital font. What makes this tube odd is that the center supports in the [...]

Okay, the last time I asked for help identifying an unknown device, you guys came through.  Even Evil Mad Scientist helped out (you guys rock.)  Well, I now have two Panaplex-style neon displays that I can’t seem to find that much information on.  Does anyone have any information on these or hints to where I [...]

I found a few cool misprinted minitron style 7 segment incandescent displays.  Essentially, they are numitrons that are in a flat pack.  As best I can tell, they were primarily used in the aviation industry because of their dependability and durability.  I’ll take some more photos of them in use after I figure out their [...]

I found this great little RCA DR 2000 / DR 2010 tester on eBay.  For $4.99, it was worth every cent.  I cannot find much information on this device other than the markings on the markings on the device itself.  ”RCA Numitron Digital Display Device Demonstrator 1g1308″ The controls are pretty simple – the knob [...]