vacuum tube
5
5.3
- noun
- /ˈvæk.juːm tuːb/
- Archaic
:
tubo de vacío
- They were first making vacuum tube amplifiers.
- vacuum tube radios
So I believe the Russian military does have some stock like vacuum tube technology because it's, it's EMP proof.
- So I believe the Russian military does have some stock like vacuum tube technology because it's, it's EMP proof.
Examples
-
For solar heat, check out vacuum tube collectors or other ones made for it.
Blog text (6) -
You see how those vacuum tubes are brown?
Blog text (4) -
And it had one of them vacuum tubes.
-
Just a very long vacuum tube seems to be incredibly fragile and vulnerable.
-
Only, instead of mechanical parts, you see, you've got thousands of individual vacuum tubes.
-
Yes, I agree with you that vacuum tubes are more appealing than transistors.
Blog text (12) -
Luckily for us, the vacuum tube is a nonlinear amplifier.
-
Back in the 1960s, when vacuum tubes ruled, it was simple and inexpensive to make most repairs.
Blog text (9) -
The classic electroacoustic hearing aid has been based on analog signal processing since the introduction of the first vacuum-tube amplifiers used for this purpose during the 1930s.
Academic text (1998) -
Half a century ago, vacuum tubes were very common in audio amplifiers.
Synonyms
65
8.8
An old glass part used in radios and sound equipment to make sound louder
1
6.0
A large glass device in old TVs and computer screens that makes pictures with a beam of electrons
1
9.9
A glass tube with five metal parts that makes electrical signals stronger
A glass or metal device that controls electric current in old radios and televisions
A glass or metal device that controls the flow of electricity in old radios and machines
A glass or metal tube that uses heat to make electricity flow without air
An electronic device in a sealed glass tube that controls electric current in old radios
A vacuum tube with four metal parts that amplifies electrical signals
A glass tube inside old TVs that makes the picture on the screen
A device used in old television cameras to change an image into electronic signals
A tube with no air that makes X rays when fast electrons hit metal
Surface Forms
Morphology
The compound is directly compositional: 'vacuum' (an empty space) + 'tube' (a hollow/cylindrical object) yields a tube containing a vacuum, so a B1 learner who knows both words can infer it denotes a hollow device with the air removed. The precise technical function as an electronic amplifier requires extra domain knowledge but does not obscure the basic, transparent relation between the parts.
Etymology
The noun vacuum tube comes from its literal design: a glass tube with the air removed so there is a vacuum inside. With the air gone, metal parts inside can control the flow of electricity like a 'valve', so the name explains why the device controls electric current.