If I had to guess, I'd say the 'vacuum tube' is the glass envelope from a neon bulb, with the USB drive's activity light rigged to provide the 'filament glow'. Pretty slick looking no matter how you look at it.
Looking at it again, perhaps the 'tube' is a automotive bulb. The bulb number escapes me, but it has two metal sleeves on either end. It is ( or at least was) used for dome lights and glove compartment lights.
it is mostly like this http://en.wikipedia.org/wiki/Vacuum_tube vacuum diode or something like that - nice looking piece of glass with a kind of metall inside :)))
I've never seen a radio tube quite that small; even the CV4501subminiature tube they have in the wiki entry looks bigger than the thing in this project. Of course, I'm hardly an expert on radio tubes,. and maybe either the wiki entry or the photo here might be exaggerating the size a bit.
A neon bulb would have a couple of electrodes in it, though whatever is in the glass envelope here does appear to be considerably more elaborate.
I've got this instructable in my favorites, I'm dying to see the play-by-play on how he built this thing!
I am very impressed about your work. Especially the etching brass parts are absolutely good. You also did a great job by composing the different materials together!!! I really like your style
This is absolutely beautiful! I'm not familiar with a radio lamp, where did you find that part? I'll reiterate what everyone else here has said, I'd love to see the step-by-step.
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vacuum diode or something like that - nice looking piece of glass with a kind of metall inside :)))
A neon bulb would have a couple of electrodes in it, though whatever is in the glass envelope here does appear to be considerably more elaborate.
I've got this instructable in my favorites, I'm dying to see the play-by-play on how he built this thing!
I am very impressed about your work.
Especially the etching brass parts are absolutely good. You also did a great job by composing the different materials together!!!
I really like your style
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Ceers Aeon Junophor
Agree with Aleator777...
Tube mounting, brass etching, usb modding.
we need the HOW! ;-)
please make another one, and take pictures!
Background stuff from picture 2 looks FUN.
those the old bits from the sacrificial radio used to make this?