Radios antiguas y Radios de Colección
VT31B_GPO
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País:
Gran Bretaña (GB)
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| Idéntica a |
VT31B_GPO
= CV1639
= 4101E
= 3A/141A
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| Válvulas similares |
Other class quality (otherwise equal):
3A/141AY
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| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
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| Usada en |
Telefonìa |
| Filamento |
Vf 4.5 Volt / If 1 Ampere / Direct / Specified voltage AND current AC/DC |
| Descripción |
Tube first made for the British Post Office in 1925 and used in telephony as a repeater tube.
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| Literatura |
-- Original-techn. papers.
Babani, International Radio Tube Encyclopaedia
British Radio Valves - The Vintage Years: 1904-1925
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Just Qvigstad
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[rmxtube-en]
| Cumplimiento de datos |
Más información |
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