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4CX250F

Information - Help 
ID = 22418
       
 
   
Tube type:  Transmitting Tetrode, air cooled 
Identical to 4CX250F = 7204 = QEL2/275H
Similar Tubes
Other class quality (otherwise equal):
  8621
Heater different:
  4CX250B ; QV2-250C

Base SPECIAL TUBEBASE in general
Filament Vf 26.5 Volts / If 0.56 Ampere / Indirect
Weight 120 g / 4.23 oz
Literature
 
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4CX250F: RK
Rudolf Kernchen

 
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4CX250F: ARRL Handbook 1972
Michael Schlör

 
4cx250_01_1.png
4CX250F: Manufacturer's Literature
Emilio Ciardiello



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