Antique radios, Old Time Radios
S2
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Country:
Great Britain (UK)
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Brand:
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Ferranti, GB |
| Tube type: |
Screen-grid Tetrode Audio Frequency Controlling (mu) |
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| Identical to |
S2
= B255
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=H)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.18 Ampere / Indirect / Specified voltage AC/DC |
| Description |
This tube is a variable mu type. It was originally shown as being made by MOV but all reference sources show Ferrranti.
Text in other
languages (may
differ)
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| Information source |
Babani, International Radio Tube Encyclopaedia p. 138 & 139
History of the British Radio Valve to 1940 p. 146 &184
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S2: rtt
Anonymous 10 Collector
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Just Qvigstad
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Collection of
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