Audion
E6290
Audion is an early triode vacuum tube invented by Lee de Forest that enabled the amplification of electrical signals and was crucial to the development of radio and electronics.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| audion triode | 1 |
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
electronic component
ⓘ
triode vacuum tube ⓘ |
| associatedWith | Lee de Forest ⓘ |
| contributedTo |
development of electronic amplification
ⓘ
development of electronics ⓘ development of long‑distance telephony ⓘ development of radio technology ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| enables | amplification of electrical signals ⓘ |
| era | early 20th century ⓘ |
| field |
electronics
ⓘ
radio engineering ⓘ telecommunications ⓘ |
| hasComponent |
evacuated glass bulb
ⓘ
filament ⓘ grid ⓘ plate ⓘ |
| hasElectrode |
anode
ⓘ
cathode ⓘ control grid ⓘ |
| hasFunction |
amplifying weak signals
ⓘ
detecting radio signals ⓘ rectifying alternating currents ⓘ |
| hasNumberOfElectrodes | three ⓘ |
| hasType | thermionic valve ⓘ |
| improvedUpon | Fleming valve ⓘ |
| inventor | Lee de Forest ⓘ |
| operatesBy | thermionic emission ⓘ |
| operatesIn | partial vacuum ⓘ |
| predecessorOf |
later triode vacuum tubes
ⓘ
modern electronic amplifiers ⓘ |
| significance |
first practical electronic amplifying device
ⓘ
key component in early radio broadcasting ⓘ milestone in vacuum tube technology ⓘ |
| usedIn |
audio amplification
ⓘ
early electronic circuits ⓘ early radio receivers ⓘ early radio transmitters ⓘ telephone repeaters ⓘ wireless telegraphy ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Audion vacuum tube
this entity surface form:
audion triode