radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

47B

Information - Help 
ID = 25245
       
 
   
Tube type:  Vacuum Pentode   Power/Output 
Identical to 47B = UY-247B = UY47B
Similar Tubes
Normally replaceable-slightly different:
  47

Base UY-Base, 5 Pins (USA, April 1927)
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct
Description

Japan

 
Information source -- Collector info (Sammler)   
 
47b.jpg
47B: KoBi
Konrad Birkner † 12.08.2014

 
47_8.png
47B
Emilio Ciardiello

 

from 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

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg