Radio-Katalog, Röhren, Halbleiter etc.
F3_Louden
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Land:
Grossbritannien (UK)
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| Identisch mit |
F3_Louden
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| Erste Quelle(n) |
1924 : British Radio Valves - The Vintage Years: 1904-1925 p.32 & 185
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| Sockel |
Europasockel 4-Stift B4 (Eu A, E, 4A) 1914
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| Anwender |
Radio/TV-Empfang etc. |
| Heizung |
Uf 5.5 Volt / If 0.4 Ampere / Direkt / Batterieheizung = |
| Beschreibung |
Louden valves were marketed by Fellows Magneto Co. Ltd. from 1924 to 1927.
The F1, F2, F3, Bright emitters were replaced by the near equivalent FEx1, FEx2 and FEx3 series in 1926-27.
There is some disagreement between Tyne and other sources as Tyne refers to the "F" series as "FE". However numerous manufacturer's advertisements refer to it as "F".
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| Literatur |
Wireless World (The), London (WW, 79) numerous advertisements such as 13 April 1927
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F3_Louden: Fin Stewart
Fin Stewart
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Just Qvigstad
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| Datenkonformität |
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