Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:vacuum_tube
|
| gptkbp:application |
audio amplification
|
| gptkbp:basisFor |
8-pin steel
|
| gptkbp:countryOfOrigin |
gptkb:Germany
|
| gptkbp:heater_current |
50mA
|
| gptkbp:heater_voltage |
55V
|
| gptkbp:introduced |
1940s
|
| gptkbp:manufacturer |
gptkb:Telefunken
|
| gptkbp:notable_for |
use in vintage microphones
|
| gptkbp:successor |
VF14M vacuum tube
|
| gptkbp:type |
pentode
|
| gptkbp:used_in |
gptkb:Neumann_U47_microphone
|
| gptkbp:bfsParent |
gptkb:Neumann_U_47
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
VF14 vacuum tube
|