Antique radios, Old Time Radios
257B
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Country:
United States of America (USA)
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| Identical to |
257B
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| Base |
7-Pin-Base-general, old, USA (Codex=My)
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| Filament |
Vf 5 Volts / If 7.5 Ampere |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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Collection of
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