Antique radios, Old Time Radios
WD12
| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE) (Codex=Bo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 1.1 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
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
Text in other
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| Tube prices |
14 Tube prices (visible for members
only)
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| Information source |
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
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):56
Collection of
Collection of a member from D |
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Variants
Bakelit base. Two lime getter. Glass has 26 mm diameter.
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