Antique radios, Old Time Radios
RO4109
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Country:
France
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| Identical to |
RO4109
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| Similar
Tubes |
Normally replaceable-slightly different:
A409
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| First year |
1928
Saga of the Vacuum Tube, Tyne page 414
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| First Source
(s) |
Jun.1930 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 3.5 Volts / If 0.06 Ampere / Direct / Battery = |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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Just Qvigstad
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RO4109: Visseaux-Radio Datasheet
David Zeller
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Collection of
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line up.
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| Data Compliance |
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