Antique radios, Old Time Radios
412BU
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Country:
Great Britain (UK)
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| Identical to |
412BU
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| Similar
Tubes |
Normally replaceable-slightly different:
506
; RGN1054
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| First Source
(s) |
1929 : History of the British Radio Valve to 1940 p.168
Aug.1930 : Philips Bulletin R1164, p. 19
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC |
| Description |
Va max 2x250V, Ia max 70 mA.
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| Information source |
Röhren-Vademecum; P.H. Brans; Antwerpen p. 129
Universal Vade-Mecum, Electron Valves and Semiconductor Devices section 22, p. 20
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia
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412BU: Fin Stewart
Fin Stewart
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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