Antique radios, Old Time Radios
4K30
Country:
Germany
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Identical to |
4K30
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First year |
1929
Tube leaflet collection E.Erb Analysis by original leaflets
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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 0.3 Ampere |
Information source |
Taschenbuch zum Röhren-Codex 1948/49
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4K30: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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4K30: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
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Collection of
Collection of a member from D
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