Antique radios, Old Time Radios
SM4
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Country:
France
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| Identical to |
SM4
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| Similar
Tubes |
Normally replaceable-slightly different:
E441N
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fa)
Sidecontact.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
This tube shown in Univesal VadeMecum as A441N. Not correct and pin assignments also wrong. Should be E441N
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| Information source |
Röhren-Vademecum; P.H. Brans; Antwerpen p. 72
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 149, p. 213 - see text
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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Just Qvigstad
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