Antique radios, Old Time Radios
CV257
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Country:
Great Britain (UK)
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| Identical to |
CV257
= ACT22
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| Similar
Tubes |
Normally replaceable-slightly different:
E1457
Other characteristic (electr. data):
CV1736
; CV6055
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| Was used by |
Radar |
| Filament |
Vf 6.3 Volts / If 4 Ampere / Half indirect |
| Description |
f<1200MHz, Va<600, Gm=20
Planar power triode for CW operation with at least 8 db gain at 1.0 GHz. Also tested for pulse operation at 4 kV, 15 A min. emission.
20 kW peak pulse power
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| Information source |
-- Original-techn. papers.
Babani, International Radio Tube Encyclopaedia
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CV257: Manufacturer's Literature
Emilio Ciardiello
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