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  UV-257  
NameUV-257
Cathode typeOxide,indirect heating
Application fieldUHF power amplification
Envelopeglass
Output typewaveguide
Cooling methodnatural
Mass300g
Frequency range3900-3400MHz
Output power15W
Gain30dB
Filament voltage,V6,3
Filament current,A2,1-2,6
Slow-wave circuit voltage,V2300-2800
Collector voltage,V1800-2800
First anode voltage,V700-1100
External loading agreement coefficient1,5
Noise coefficient30dB


UV-257

UV-257

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