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BW137

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ID = 32452
       
Country:
Italy
Brand: Marconi Italiana (Marconifono), Officine / Ufficio Marconi; Genova, Roma
Tube type:  Transmitter Triode, liquid-cooling 
Identical to BW137 = 3F40-AC = 137_Fivre = 7873

Filament Vf 18 Volts / If 400 Ampere / Direct
Description 40KW maximum anode dissipation, water cooled transmitting triode. Pure tungsten direct heating cathode. The tube can operate up to 50MHz. The grid and heater rods must be cooled by a 0,6 cubic meters per minute forced air flow. 
Dimensions (WHD)
incl. pins / tip
x 629 x mm / x 24.76 x inch
Weight 12700 g / 447.98 oz
Information source - - Manufacturers Literature   
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7873_bw137_1.png
BW137: Manufacturer's Literature
Emilio Ciardiello

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