Antique radios, Old Time Radios
DD4B
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Country:
Hungary
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| Identical to |
DD4B
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| Base |
British-7-Pin, old (M7A) (Codex=N)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.5 Ampere / Indirect / Specified voltage AC/DC |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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DD4B: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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DD4B: My schematic collection.
Pier Antonio Aluffi
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