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triode

triode

1 9.8
A small glass tube with three parts that makes electrical signals stronger
  • noun
  • /ˈtraɪoʊd/
  • Specialized
: triodo
  • This approach is enforced not only by space considerations, but also by the fact that the passing years have erased triodes, power pentodes, klystrons, traveling-wave tubes, and the like from my memory.

Examples

  • Ooh, a super androdyne radio with triode tubes.

  • Ion Pumps: Diode, Triode, Differential/Hydrogen.

    Academic text (1997)
  • And this little box that you see right here, solid state, no moving parts is the vacuum triode that's doing this very practical and historical work.

  • The triode model, different both electrically and physically from the others, allows high speed and stability when pumping getterable and noble gases, even at relatively high pressures.

    Academic text (2002)
  • The StarCell VacIon Plus element is a variation of the triode design, enabling constant operation at pressures of 10-8 mbar or above.

    Academic text (2002)
  • They will operate the tips in a non-contact triode, which avoids wear on the tips but requires the control of each tip with a servo and feedback loop.

    Academic text (2002)
  • I don't know to what extent changes in the modern human lineage made the mental hardware of early Homo sapiens something like a transistor-based computer that had to compete against the older triode-based models that filled the planet.

    Blog text (14)
  • We got the deForest triode amplifier, we gave the Strowger switch, we got a rather primitive version of solid-state physics, and we traded them Claude Shannon's work on information theory.

    Fiction book (1997)
  • The VacIon Plus family includes diode, noble diode, triode, and StarCell pump versions, along with the company's MiniVac and Multivac Ion Pump controllers.

    Academic text (2002)
  • The triode is a crucial component in amplifying electrical signals in many radios.

Synonyms

thermionic tube
vstriode
  • Archaic
1 9.8

A glass or metal device that controls the flow of electricity in old radios and machines

is the specific three electrode form used to amplify electrical signals
thermionic vacuum tube
vstriode
  • Archaic
8.3

A glass or metal tube that uses heat to make electricity flow without air

is a specific type with three electrodes used to amplify signals

Surface Forms

triode singular
triodes plural

Morphology

triode = diode (semi-transparent) = tri + ode

Formed by the combining prefix 'tri-' plus the combining form '-ode' (as in 'diode'); the meaning 'three-electrode device' is derivable but relies on technical terminology and combining forms not familiar to all learners.

Etymology

Triode comes from Greek parts tri- meaning 'three' (as in triangle or trio) and -ode meaning 'way' or 'path', the same ending you see in electrode. So a triode is literally a 'three-way' device, with three important parts called 'electrodes' that let it control and amplify electrical signals.