Antique radios, Old Time Radios
3-50D4
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Country:
United States of America (USA)
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| Identical to |
3-50D4
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bt)
Sidecontact and top contact.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 4 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
57 x 140 x 65 mm / 2.24 x 5.51 x 2.56 inch |
| Information source |
Tube Lore (II) p. 202
Babani, International Radio Tube Encyclopaedia p. 170 & 171
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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3-50D4: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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Collection of
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