Antique radios, Old Time Radios
Dn2004_4pin
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Country:
Netherlands
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| Identical to |
Dn2004_4pin
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| Similar
Tubes |
Other base:
Dn2004
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| First Source
(s) |
1930 : Radio-Expres, Netherlands
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| Base |
Europe 4-Pin B4 + side contact
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Gm=1.2 at Va=200. Amplification factor 200 R_internal=167k. (Radio-Expres 1930)
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Dimensions (WHD)
incl. pins / tip |
44 x 123 x 32 mm / 1.73 x 4.84 x 1.26 inch |
| Weight |
35 g / 1.23 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Radio-Expres, Netherlands
- - Manufacturers Literature
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Dn2004_4pin: data sheet
Jacob Roschy
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Just Qvigstad
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Collection of
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| Data Compliance |
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