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25S

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ID = 13443
       
Country:
United States of America (USA)
Brand: National Union Radio Corp.; Orange (NJ)
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 25S = 1B5 = 25

Base 6-Pin-Base U6A, old, USA (Codex=Ko)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.06 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
x 103 x 38 mm / x 4.06 x 1.50 inch
Weight 34 g / 1.20 oz
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (II)   p. 26 & 39
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

1b5basediagram.png 25S: 1B5, RCA Datasheet 1937
Vitor Oliveira

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Just Qvigstad
Usage in Models 1= 1932 ; 1= 1934?? ; 5= 1934? ; 10= 1934 ; 3= 1935?? ; 1= 1935? ; 22= 1935 ; 1= 1936?? ; 13= 1936 ; 4= 1937?? ; 5= 1937 ; 1= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):67

Collection of

 
25s_rca_rmf_1.jpg

25S
 

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