Antique radios, Old Time Radios
NA210
Country:
Germany
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Identical to |
NA210
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First Source
(s) |
Sep.1927 : Funk Bastler #39
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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 1.9 Volts / If 0.1 Ampere / Direct / Battery = |
Description |
Ua: 30 / 150 V
Sättigungsstrom: 15 mA
Steilheit: 0,7 mA/V
Verstärkungsfaktor: 13 %
Innenwiderstand: 11 kΩ
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Information source |
-- Original prospect or advert Radio Giornale No. 5, Marzio 1928
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Just Qvigstad
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NA210: Radio Giornale No. 5, Marzio 1928
Mark Hippenstiel
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