Antique radios, Old Time Radios
R4B
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Country:
Great Britain (UK)
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Brand:
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Ferranti, GB |
| Tube type: |
Half-Wave Vacuum Rectifier Power-supply |
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| Identical to |
R4B
= 505
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| Filament |
Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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R4B: rtt
Anonymous 10 Collector
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