Radio Antica e Radio d'epoca
A1_plateless
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Stato:
Gran Bretagna (Regno Unito)
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| Identico a |
A1_plateless
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| Prime
informazioni |
Jun.1924 : British Radio Valves - The Vintage Years: 1904-1925
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| Zoccolo |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 4 Volt / If 0.58 Ampere / Direct / Battery = |
| Descrizione |
G.W.I. Ltd. Imperial Works, Shanklin Rd., Crouch End, London, N8.
Valve repairers who produced an unusual valve in 1924.
Instead of a cylindrical anode the inner glass surface was silver coated to work as anode. Therefore called "plateless".
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| Bibliografia |
British Radio Valves - The Vintage Years: 1904-1925 pages 4, 32, 116, 138
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Just Qvigstad
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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