Radios antiguas y Radios de Colección
LVB
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País:
Holanda
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| Idéntica a |
LVB
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| Primera serie |
1920
- - Manufacturers Literature Ad in January 1921 - but made already in 1920.
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| Fuente principal
(es) |
Jan.1921 : -- Collector info (Sammler)
1922 : Saga of the Vacuum Tube, Tyne page 424, 425
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| Fin producción |
Aug.1924 |
| Base |
Edison medium E14 = 14 mm, mignon
Base on each end.
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| Usada en |
Radio/TV-reception etc. |
| Filamento |
Vf 3.7 Volt / Direct / Battery = |
| Descripción |
There are at least two slightly different looking tubes: The early type which is pictured in the Heussen catalog , dated April 1922. In an other catalog, dated November 1922, this LVB has a glass arbor against microphonics.
Texto en otros idiomas
puede diferir
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Just Qvigstad
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LVB: own collection
Peter den Boer † 2025
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Colección personal de
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| Cumplimiento de datos |
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