control grid
(grid, control grid)
Princeton's WordNet
an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube
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grid
(grid, control grid)
Princeton's WordNet
an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube
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cathode-ray tube
(æˈθɒd ɪk)
Random House Webster's College Dictionary
a vacuum tube generating a focused beam of electrons, the terminus of which is visible as a luminescent spot or line on a screen at the broad end of the tube: used to display images on a television receiver or computer monitor.
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magnetron
(ˈmæg nɪˌtrɒn)
Random House Webster's College Dictionary
a two-element vacuum tube used to generate microwaves.
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evacuate
(ɪˈvæk yuˌeɪt)
Random House Webster's College Dictionary
to produce a vacuum in (a vessel, electron tube, etc.).
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tetrode
(ˈtɛ troʊd)
Random House Webster's College Dictionary
a vacuum tube containing four electrodes, usu. a plate, two grids, and a cathode.
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envelope
(ˈɛn vəˌloʊp, ˈɑn-)
Random House Webster's College Dictionary
the airtight glass or metal housing of a vacuum tube.
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leech
Webster Dictionary
a glass tube of peculiar construction, adapted for drawing blood from a scarified part by means of a vacuum
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triode
(ˈtraɪ oʊd)
Random House Webster's College Dictionary
a vacuum tube containing three elements, usu. anode, cathode, and control grid.
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electron multiplier
(electron multiplier)
Princeton's WordNet
a vacuum tube that amplifies a flow of electrons
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a battery
(A battery)
Princeton's WordNet
the battery used to heat the filaments of a vacuum tube
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plate
(plate)
Princeton's WordNet
the positively charged electrode in a vacuum tube
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acorn tube
(acorn tube)
Princeton's WordNet
a small vacuum tube; used at high frequencies
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electron multiplier
(ɪ lɪkˈtrɒn ɪks, ˌi lɛk-)
Random House Webster's College Dictionary
a vacuum tube in which the flow of electrons from the cathode is amplified by secondary emission.
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filament
(ˈfɪl ə mənt)
Random House Webster's College Dictionary
the heating element of a vacuum tube, resembling the filament in an incandescent lamp.
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crookes tube
Webster Dictionary
a vacuum tube in which the exhaustion is carried to a very high degree, with the production of a distinct class of effects; -- so called from W. Crookes who introduced it
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c battery
(C battery)
Princeton's WordNet
battery used to maintain the grid potential in a vacuum tube
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emission
(ɪˈmɪʃ ən)
Random House Webster's College Dictionary
a measure of the number of electrons emitted by the heated filament or cathode of a vacuum tube.
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cathode ray
(æˈθɒd ɪk)
Random House Webster's College Dictionary
a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam.
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detector
(ɪˈtɛk tər)
Random House Webster's College Dictionary
a device, as a crystal detector or a vacuum tube, that rectifies the alternating current in a radio receiver.
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plate
(ɪt)
Random House Webster's College Dictionary
one of the interior elements of a vacuum tube, toward which electrons are attracted by virtue of its positive charge; anode.
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b battery
(B battery)
Princeton's WordNet
battery for supplying a constant positive voltage to the plate of a vacuum tube
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anticathode
Webster Dictionary
the part of a vacuum tube opposite the cathode. Upon it the cathode rays impinge
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ignitron
(ɪgˈnaɪ trɒn, ˈɪg nɪ trɒn)
Random House Webster's College Dictionary
a rectifying vacuum tube with an auxiliary electrode projecting into a pool of mercury that conducts current when the anode is positive.
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tickler coil
(tickler coil)
Princeton's WordNet
a small coil in series with the anode of a vacuum tube and coupled to the grid to provide feedback
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grid
(ɪd)
Random House Webster's College Dictionary
an electrode in a vacuum tube, usu. consisting of parallel wires, a coil of wire, or a screen, for controlling the flow of electrons between the other electrodes.
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eye dropper
(dropper, eye dropper)
Princeton's WordNet
pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time
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dropper
(dropper, eye dropper)
Princeton's WordNet
pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time
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x-ray tube
(X-ray tube)
Princeton's WordNet
a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays
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thorium
(ˈθɔr i əm, ˈθoʊr-)
Random House Webster's College Dictionary
a grayish white, lustrous, radioactive metallic element: used as a source of nuclear energy, in sun-lamp and vacuum-tube filaments, and in alloys.
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