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UCL 11  
Country:  Europe      Brand:  Common tube type Europe 
  Developer:  Telefunken Deutschland (TFK) 
  Tube type:  Triode-Beam Power Tube   AF-Tube 
Identical to UCL11
Similar Tubes ECL11 (Multiple differences or of other kind)  
First Series   Jul.1939 Tube leaflet collection E.Erb Analysis by original leaflets (V7, T8)
First Source (s) Jun.1939 : Funktechnischer Vorwärts 1939, #13
1939 : TR3916-145
Successor Tubes 1952 UCL81   UCL82   UEL51   UEL11  

Base German Steel Y8A, 1938 (Codex=R)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Series, AC/DC / If: 0.1 Ampere / Vf 60 Volts /
Description Normal Glaskolben, 1942 auch mit Stahlkolben, sehr rar. 
Text in other languages (may differ)
Tube prices 2 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49