Statements (10)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
vacuum tube
|
| gptkbp:countryOfOrigin |
gptkb:United_Kingdom
|
| gptkbp:developedBy |
early 20th century
|
| https://www.w3.org/2000/01/rdf-schema#label |
Kneale valve
|
| gptkbp:inventedBy |
William Henry Eccles
|
| gptkbp:usedFor |
amplification
radio detection |
| gptkbp:usedIn |
early radio receivers
|
| gptkbp:bfsParent |
gptkb:Peter_Kneale
|
| gptkbp:bfsLayer |
7
|