things just shouldn't be done, like converting a World War II
era Douglas DC-3 airplane's engine from its original twin multi-cylinder
radials to jet-engine-powered turboprops; it violates nature's rules.
Another example might be installing a
speedometer in a vintage pickup truck. I say 'might' because thanks
to Luke Miller's ingenuity, his 1953 International pickup truck
- indeed the world - now has a proven plan for a GPS-driven, two-digit
speedometer featuring a Nixie tube numerical display. A two-part
article on the EE Times website provides the theory of operation
and the details for constructing the Nixie tube speedometer. Why
GPS-driven, you might ask? It was evidently simpler - and more impressive
- to do so than to tap into the truck's speedometer cable and implement
a sensor. An added benefit is portability. This looks like a Kickstarter
opportunity for commercial productization if there ever was one.
2-Digit, GPS-Driven, Nixie Tube Speedometer, by Luke Miller
In other Nixie tube news, the
DIY kit is now available for sale just in time
for Christmas! The price is $399, a mere pittance of a sum
when you consider it includes 32 Nixie tubes and all the required
parts, even the 12V power supply. Unfortunately, if you want give
it as a gift, you'll have to wrap a promise for delivery in 2014
because its popularity has caused a stock depletion.
Posted December 18,