Antique radios, Old Time Radios
DF31
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Country:
Great Britain (UK)
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| Identical to |
DF31
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| Similar
Tubes |
Different connections:
DF21
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uu)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 1.4 Volts / If 0.025 Ampere / Direct / Battery = |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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DF31: rtt
Anonymous 10 Collector
More ...
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Just Qvigstad
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DF31: My schematic collection.
Pier Antonio Aluffi
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