Antique radios, Old Time Radios
HF250
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Country:
United States of America (USA)
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| Identical to |
HF250
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| Base |
Jumbo 4-pin bayonet (1918) (Codex=Bz)
Sidecontact and top contact.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 4 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
x 279 x 70 mm / x 10.98 x 2.76 inch |
| Information source |
Tube Lore (II) p, 150
Babani, International Radio Tube Encyclopaedia p. 204 & 205
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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HF250: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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