Antique radios, Old Time Radios
U4020
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Country:
Great Britain (UK)
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| Identical to |
U4020
= CV1267
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| First year |
1935
-- Collector info (Sammler) Only according to models.
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 40 Volts / If 0.2 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Description |
Input 250V rms; output 120mA average. (The earlier 1938 Mazda data gives a maximum current rating of 75mA.)
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| Information source |
History of the British Radio Valve to 1940 p. 149 & 176
- - Manufacturers Literature 1937 data sheet.
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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U4020: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
More ...
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Just Qvigstad
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U4020: own collection
Peter den Boer † 2025
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):34
Collection of
Collection of a member from D Collection of a member from D |
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