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QV2-250F

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ID = 27557
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Transmitting Tetrode, air cooled   beam power 
Identical to QV2-250F
Similar Tubes
Heater different:
  QV2-250C

Base TRANSMITTING & Power-TUBES/VALVES in gen
Filament Vf 26.5 Volts / If 0.58 Ampere / Indirect / Specified voltage AC/DC
Description This is also the Mullard and Valvo 4CX250F 

qv2250f_so1.png QV2-250F: ARRL Handbook 1972
Anonymous 10 Collector

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4cx250_01_3.png
QV2-250F: Manufacturer's Literature
Emilio Ciardiello

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