Antique radios, Old Time Radios
S407
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Country:
Hungary
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| Identical to |
S407
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| Similar
Tubes |
Normally replaceable-slightly different:
A2004
; L409
; S4
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.07 Ampere / Direct |
| Information source |
Babani, International Radio Tube Encyclopaedia p. 140 & 141
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 150, p. 213
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
Taschenbuch zum Röhren-Codex 1948/49
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S407: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
More ...
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Just Qvigstad
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S407: Tungsram Katalog 1928
Franck Faure
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
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