Vacuum TUBE amp,
which is, by far, the best,
anti-distortion-wise.
Breaking Bad Season 4, Episode 2
♪ A cathode ray TUBE
without an electron gun ♪
The Big Bang Theory Season 7, Episode 6
I got a sexy new TUBE top
that says "come hither"...
The Big Bang Theory Season 6, Episode 23
This nano vacuum TUBE idea of
yours is really interesting.
The Big Bang Theory Season 7, Episode 7
Tube!
Money Heist Season 3, Episode 3