Antique radios, Old Time Radios
3581
Country:
United States of America (USA)
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Identical to |
3581
= 822
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Base |
Jumbo 4-pin bayonet (1918)
Top contact with a cap.
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Was used by |
Industrial |
Filament |
Vf 10 Volts / If 4 Ampere / Direct |
Dimensions (WHD) incl. pins / tip |
x 221 x 64 mm / x 8.70 x 2.52 inch |
Information source |
Tube Lore (II) p. 154
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3581: Fin Stewart
Fin Stewart
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Just Qvigstad
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