Radio Antica e Radio d'epoca
WD12
| Zoccolo |
UV-Base (4 Pins+Bayonet, USA 1914 WE) (Codex=Bo)
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| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 1.1 Volt / If 0.25 Ampere / Direct / Battery = |
| Descrizione |
The WD12 was introduced in 1923 but discontinued in 1926. It was made by several US manufacturers. It is a WD11 with UV base. The original WD12 was ungettered. Next in line of production was a bakelite based tube, also ungettered. Gettering was introduced in the next tube. The tip was discontinued in the ast WD12. It as re3placed by the WX12
Testo in altre lingue
(può variare)
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| Quotazioni |
14 Quotazioni (visibili solo per gli
associati)
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| Bibliografia |
Saga of the Vacuum Tube, Tyne p. 313
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (II)
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WD12: KoBi
Konrad Birkner † 12.08.2014
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Just Qvigstad
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WD12: KoBi
Konrad Birkner † 12.08.2014
Segue ...
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Numero
totale di modelli di Radiomuseum.org che
utilizzano questa valvola:56
Collezione di
Collezione di un iscritto da D |
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Varianti
Bakelit base. Two lime getter. Glass has 26 mm diameter.
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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