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Control grid

The control grid is an electrode used in amplifying thermionic valves (vacuum tubes) such as the triode, tetrode and pentode, used to control the flow of electrons from the cathode to the anode (plate) electrode. The control grid usually consists of a cylindrical screen or helix of fine wire surrounding the cathode, and is surrounded in turn by the…

Grid variations, Construction & Effects of grid position

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Grid variations

Grid biasMiller EffectScreen gridVery high frequencyMullard
6 related topics

Construction

MolybdenumAlloyGoldCopper
4 related topics

Effects of grid position

Amplification factorTransconductanceNoise figure
3 related topics

Overview

ElectrodeThermionic valvesTriodeTetrodePentode
12 related topics

Topics to explore

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Overview

Operation

Construction

Effects of grid position

Multiple control grids

Grid variations

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Map overview Semantic statistics

Control grid

Nodes35
Edges34
Triples25
Avg. degree1.94
Density0.057143
Components1

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Control grid

Top relations

related to Grid variations · 14
Control grid → Cag, EC91, However, MHz, Miller, Miller Effect, Modern, One, The, The Mullard EC91, These, This, Triodes, VHF
has effect · 5
Control grid → By, It, Lower, The, This
related to Multiple control grids · 2
Control grid → The, This
related to Operation · 2
Control grid → In, The
causes · 1
Control grid → a significantly large variation in anode current
is a · 1
Control grid → electrode used in amplifying thermionic valves

Important terminology Word statistics

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Important terminology

grid anode control valve cathode electrons voltage triode variation wire current causes cag amplifying filament used usually screen helix fine

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Control gridcausesa significantly large variation in anode current0.90text
Control gridis aelectrode used in amplifying thermionic valves0.90text
Control gridhas effectBy0.60section
Control gridhas effectThis0.60section
Control gridhas effectIt0.60section
Control gridhas effectThe0.60section
Control gridhas effectLower0.60section
Control gridrelated to Grid variationsThis0.60section
Control gridrelated to Grid variationsOne0.60section
Control gridrelated to Grid variationsCag0.60section
Control gridrelated to Grid variationsMiller Effect0.60section
Control gridrelated to Grid variationsThese0.60section

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    Min side: 3
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