Radios antiguas y Radios de Colección
AT40
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País:
Gran Bretaña (GB)
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Marca:
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| Tipo: |
Transmitting Triode, air cooled Power/Output |
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<1925 very rare |
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| Idéntica a |
AT40
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| Válvulas similares |
Other base and data slightly different:
AT40_UV
; VT15_GPO
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| Primera serie |
1922
Saga of the Vacuum Tube, Tyne Seite 381
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| Fuente principal
(es) |
1921 : British Radio Valves - The Vintage Years: 1904-1925 p.77
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Usada en |
Militaire et/ou Services Publics |
| Filamento |
Vf 7 Volt / If 1.5 Ampere / Direct |
| Descripción |
Made for the British Army by MOV. Also made by A.C.Cossor Ltd - tube in collection has American UV 4 pin base.
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
60 x 125 x mm / 2.36 x 4.92 x inch |
| Literatura |
British Radio Valves - The Vintage Years: 1904-1925 Pages 77 & 83
- - Data from my own collection
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AT40: Fin Stewart
Fin Stewart
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Just Qvigstad
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Colección personal de
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[rmxtube-en]
| Cumplimiento de datos |
Más información |
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