Antique radios, Old Time Radios
207
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Country:
United States of America (USA)
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| Identical to |
207
= VT-34
= 38107
= 507_DeForest
= CG-1971
= UV207
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| Similar
Tubes |
Normally replaceable-slightly different:
F307A
; GL-452
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| First Source
(s) |
31.May.1945 : Electron Tube Registration List rec. 411
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| Base |
TRANSMITTING & Power-TUBES/VALVES in gen
Sidecontact.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 22 Volts / If 52 Ampere / Direct |
| Description |
10KW, 1.6MHz max operating, mu 20. Tungsten filament. Water cooled via external jacket.
Amperex, Federal, GE, Machlett, RCA, Westinghouse known manufacturers.
Introduced since 1923 for broadcast service.
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Dimensions (WHD)
incl. pins / tip |
x 490 x mm / x 19.29 x inch |
| Information source |
Tube Lore (II) p. 29 & 30, 213
Tube Lore (I)
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia
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207: Manufacturer's Literature
Emilio Ciardiello
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