Antique radios, Old Time Radios
938
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Country:
United States of America (USA)
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| Identical to |
938
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| Similar
Tubes |
Normally replaceable-slightly different:
838
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| Base |
Jumbo 4-pin bayonet (1918) (Codex=Byy)
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 3.3 Ampere / Direct |
| Information source |
Tube Lore (II) p. 162
-- Collector info (Sammler)
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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938: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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