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ID = 46165
United States of America (USA)
Brand: FTR, Federal Telephone & Radio Corp. Ltd.; Newark
Tube type:  Transmitter Triode, liquid-cooling 
Identical to F-129B

Filament Vf 18 Volts / If 58 Ampere / Direct
Description 7.5KW transmitting triode, mu 26; 30MHz max operating frequency.
Used in BC-340 
Information source Tube Lore (I)   

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