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RES347

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ID = 28257
       
Country:
Italy
Brand: Telefunken Italia, Milano
Tube type:  Vacuum Pentode   Power/Output 
Identical to RES347
Similar Tubes
Normally replaceable-slightly different:
  47
First Source (s)
Jun.1931 : - - Data from my own collection

Base UY-Base, 5 Pins (USA, April 1927)
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct / Specified voltage AC/DC
Description Telefunken Nachbau der USA type 47. 
Information source - - Data from my own collection   

450_1~~1.png RES347: Telefunken Werkstattbuch
Wolfgang Bauer

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Just Qvigstad
Usage in Models 1= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of

 
dsc07136.jpg

RES347
 

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