Antique radios, Old Time Radios
GR4
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Country:
Great Britain (UK)
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Brand:
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Ferranti, GB |
| Tube type: |
Full-Wave Rectifier gas filled |
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| Identical to |
GR4
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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 3 Ampere / Direct |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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GR4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
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GR4: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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