Antique radios, Old Time Radios
50S4
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Country:
Italy
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| Identical to |
50S4
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| Similar
Tubes |
Other shape (e.g. bulb type):
50R4
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 50 Volts / If 0.15 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
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50S4: GBC TUBE CATALOGUE 1964
Giuseppe Feniello
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Just Qvigstad
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Collection of
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