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UEL11

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ID = 307
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Double Tetrode   beam power   Audio Frequency 
Identical to UEL11
Similar Tubes
Heater different:
  VEL11
Other base and data slightly different:
  UEL71
Multiple differences or of other kind:
  UEL171 ; UEL51
First year 1949 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Aug.1949 : Radio-Mentor # 8
May.1949 : Funkschau # 10
Predecessor Tubes VCL11   UCL11   WG34   VEL11  
Successor Tubes UCL81  

Base German Steel Y8A, 1938 Top contact with a cap
Filament Vf 48 Volts / If 0.1 Ampere / Indirect / Series, AC/DC
Tube prices 4 Tube prices (visible for members only)
 
uel11_3.jpg
UEL11: JR
Jacob Roschy

 
uel11_so.png
UEL11: rtt
Michael Schlör

 
uel11_dat1.png
UEL11: J R
Jacob Roschy


Usage in Models 3= 1949?? ; 4= 1949? ; 23= 1949 ; 1= 1950?? ; 2= 1950? ; 22= 1950 ; 1= 1951 ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):57


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