Radio Antica e Radio d'epoca
E993
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Stato:
Gran Bretagna (Regno Unito)
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| Identico a |
E993
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| Valvole
simili |
Multiple differences or of other kind:
W30
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| Zoccolo |
British-7-Pin, old (M7A)
Top contact with a cap.
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| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 13 Volt / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Descrizione |
Experimental "W30/catkin in glass (replacement)" Developed at the Hirst Research Centre of GEC.
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| Bibliografia |
The Saga of Marconi Osram Valve p340
-- Collector info (Sammler)
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
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Just Qvigstad
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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