Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 28257
Brand: Telefunken Italia, Milano
Tube type:  Vacuum Pentode   Power/Output 
Identical to RES347
Similar Tubes
Normally replaceable-slightly different:
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

More ...

Just Qvigstad
Usage in Models 1= 1932

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

Collection of



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]