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ID = 314
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Double Diode-Pentode   RF/IF-Stage   Controlling (mu) 
Identical to UBF15
First year 1950 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
May.1950 : Funk-Technik (FT) # 10
Predecessor Tubes UBF11  
Successor Tubes 1956   UBF89  

Base German Steel Y8A, 1938
Filament Vf 27 Volts / If 0.1 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 3 Tube prices (visible for members only)

ubf15_so.png UBF15: rtt
Anonymous 10 Collector

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Just Qvigstad
UBF15: SEL Handbuch 1964
Peter Hoddow

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Usage in Models 7= 1950 ; 7= 1951 ; 1= 1952?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):15

Collection of



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