Antique radios, Old Time Radios
P405
Country:
France
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Identical to |
P405
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First year |
1928
??
Saga of the Vacuum Tube, Tyne page 413
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Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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Was used by |
Radio/TV-reception etc. |
Filament |
Vf 4 Volts / If 0.2 Ampere / Direct / Battery = |
Description |
Manufacturers : Lutèce-Lumiere SA, Paris
LF Triode
Va : 50 to 150V
Ia : 8 to 10mA
Vg : -4 to -15V
S : 2.5 mA/V
μ : 5
Text in other
languages (may
differ)
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Information source |
- - Manufacturers Literature Catalog 1929
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Just Qvigstad
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P405: Manufacturers data
Patrice Zeissloff
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