Antique radios, Old Time Radios
FT4
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Country:
Great Britain (UK)
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Brand:
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Ferranti, GB |
| Tube type: |
Magic Eye, generally Indication |
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| Identical to |
FT4
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.5 Ampere / Indirect |
| Description |
Target Volts 200-250
Target Current 0.5mA
Grid Voltage change for full indication = 6
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| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 501, p. 1069
British Radio Valves - The Classic Years: 1926-1946 Suplement, p. 253
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| Tube Tester Data |
Avo CT160 |
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Just Qvigstad
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| Data Compliance |
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