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SY551

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ID = 86549
       
Country:
United States of America (USA)
Brand: Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Screen-grid Tetrode   Audio Frequency 
Identical to SY551
Similar Tubes
Normally replaceable-slightly different:
  235 ; 35 ; 551

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Indirect
Dimensions (WHD)
incl. pins / tip
x 123 x mm / x 4.84 x inch
Weight 48 g / 1.69 oz
Information source -- Collector info (Sammler)   

51~~3.png SY551: Fin Stewart
Fin Stewart


Just Qvigstad
 

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