Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
electrical generator
|
| gptkbp:component |
gptkb:stator
rotor field windings slip rings |
| gptkbp:establishedIn |
1904
|
| https://www.w3.org/2000/01/rdf-schema#label |
Alexanderson alternator
|
| gptkbp:inventedBy |
gptkb:Ernst_Alexanderson
|
| gptkbp:notableEvent |
gptkb:Alexanderson_Day_demonstration
|
| gptkbp:notableFeature |
mechanical radio frequency generation
|
| gptkbp:notablePlace |
gptkb:Grimeton,_Sweden
|
| gptkbp:operatingSystem |
up to 100 kHz
|
| gptkbp:powerOutput |
up to 200 kW
|
| gptkbp:replacedBy |
vacuum tube transmitters
|
| gptkbp:status |
obsolete
|
| gptkbp:transmission |
continuous wave
|
| gptkbp:usedBy |
gptkb:RCA
gptkb:US_Navy |
| gptkbp:usedFor |
radio transmission
very low frequency transmission |
| gptkbp:usedIn |
gptkb:Grimeton_Radio_Station
|
| gptkbp:bfsParent |
gptkb:Ernst_Alexanderson
|
| gptkbp:bfsLayer |
4
|