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139

Information - Help 
ID = 9657
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   Audio Frequency   Controlling (mu) 
Identical to 139 = 39 = 39/44 = C239

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hfo) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 0.3 Ampere
Dimensions (WHD)
incl. pins / tip
x 118 x 34 mm / x 4.65 x 1.34 inch
Weight 38 g / 1.34 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
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139: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 

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