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247

Information - Help 
ID = 3095
       
Country:
United States of America (USA)
Brand:
Developer: RCA Victor Radio S.A., São Paulo 
Tube type:  Vacuum Pentode   Power/Output 
Identical to 247 = 47 = F247 = G-47 = 247S = KR47 = Y-247 = CL-47
Similar Tubes
Different connections:
  UX47A

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hy)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
x 137 x 54 mm / x 5.39 x 2.13 inch
Weight 67 g / 2.36 oz
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  247_sch~~1.png
  247: Allied Radio Corp.
Günter Kudicke
 
20190909_200030.jpg
247: RMG
Robert Gillespie

 
s_226_g.gif
247: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 

Usage in Models 2= 1929? ; 2= 1930? ; 1= 1930 ; 5= 1931?? ; 14= 1931? ; 61= 1931 ; 4= 1932?? ; 20= 1932? ; 135= 1932 ; 9= 1933?? ; 6= 1933? ; 16= 1933 ; 6= 1934?? ; 3= 1934? ; 1= 1935? ; 1= 1935 ; 1= 1936?? ; 1= 1939?? ; 1= 1939? ; 1= 1947??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):290


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