Antique radios, Old Time Radios
U9
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Country:
Great Britain (UK)
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| Identical to |
U9
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| First year |
1928
-- Original prospect or advert Listed in the Marconi catalog No. 520, Sept. 1928
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| First Source
(s) |
1930 : 70 Years of Radiotubes and V.
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Filament |
Vf 4 Volts / If 1 Ampere / Direct |
| Description |
This was one of the first British Rectifier to have an oxide-coated filament. 250V, 75mA.
Listed in the Marconi catalog No. 520, Sept. 1928.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
70 Years of Radiotubes and V.
- - Manufacturers Literature
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Just Qvigstad
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U9: Manufacturer's Literature
Emilio Ciardiello
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):9
Collection of
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