Radios antiguas y Radios de Colección
WD12
| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE) (Codex=Bo)
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| Usada en |
Radio/TV-reception etc. |
| Filamento |
Vf 1.1 Volt / If 0.25 Ampere / Direct / Battery = |
| Descripción |
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
Texto en otros idiomas
puede diferir
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| Precios de válvulas |
14 Precios de válvulas (visible
solo para miembros)
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| Literatura |
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
Mas ...
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Número de
modelos en Radiomuseum.org con esta
válvula:56
Colección personal de
Colección personal de un miembro de D |
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Variantes
Bakelit base. Two lime getter. Glass has 26 mm diameter.
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[rmxtube-en]
| Cumplimiento de datos |
Más información |
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