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F353A

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ID = 71449
       
Country:
United States of America (USA)
Brand: Federal Radio Corp. / Federal Telephone & Telegraph Co.; Buffalo, NY
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Half-Wave Rectifier, gasfilled   Power-supply 
Identical to F353A = 872A
Base Jumbo 4-pin bayonet (1918) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Direct
Dimensions (WHD)
incl. pins / tip		 x 217 x 58 mm / x 8.54 x 2.28 inch
Information source Tube Lore (II)   p. 80 & 154
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 66, p. 89
4at_10~~9.png F353A: Fin Stewart
Fin Stewart

Just Qvigstad
 
f353a.png

 
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