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47B

Information - Help 
ID = 25245
       
Country:
Japan
Brand: Sun Denshi Kogyo; (where?)
Tube type:  Vacuum Pentode   Power/Output 
Identical to 47B = UY-247B
Similar Tubes
Normally replaceable-slightly different:
  47

Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct
Description

Japan

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 48 g / 1.69 oz
Information source -- Collector info (Sammler)   

47_8.png 47B
Emilio Ciardiello

More ...

Just Qvigstad
Usage in Models 1= 1935?? ; 1= 1938?? ; 1= 1938? ; 1= 1940

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
 
47b.jpg

 

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