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F372B

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ID = 30054
       
Country:
United States of America (USA)
Brand: Federal Radio Corp. / Federal Telephone & Telegraph Co.; Buffalo, NY
Tube type:  Half-Wave Rectifier, gasfilled   Power-supply 
Identical to F372B

Base Jumbo 4-pin bayonet (1918) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 5 Volts / If 7.5 Ampere / Direct
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 66, p. 89


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