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EF14

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ID = 323
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to EF14
Similar Tubes
Heater different:
  UF14 ; VF14
Other base:
  EF174
First year Aug.1939 Tube leaflet collection E.Erb Analysis by original leaflets (T8)
Successor Tubes 1948   EF42   EF174   EF80  

Base German Steel Y8A, 1938 (Codex=Rk)
Filament Vf 6.3 Volts / If 0.47 Ampere / Indirect / Parallel, (AC/DC)
Description HF-Breitbandpentode 
Tube prices 19 Tube prices (visible for members only)
Literature Röhren-Taschen-Tabelle, (Franzis RTT)   
Taschenbuch zum Röhren-Codex 1948/49   
  ef14.png
  EF14: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
ef14_tf_r.jpg
EF14: collection JR
Jacob Roschy

 
63.png
EF14: Telefunken Werkstattbuch
Wolfgang Bauer

 
ef14_spec_1955.png
EF14: Telefunken Röhrentaschenbuch 1955
Anonymous 15 Collector


Usage in Models 1= 1938 ; 5= 1939 ; 2= 1940? ; 1= 1941?? ; 1= 1941 ; 2= 1942? ; 1= 1942 ; 1= 1944?? ; 1= 1945?? ; 2= 1946?? ; 1= 1946? ; 1= 1946 ; 1= 1947?? ; 2= 1947? ; 1= 1947 ; 3= 1948?? ; 1= 1948? ; 2= 1948 ; 3= 1949? ; 6= 1949 ; 14= 1950?? ; 8= 1950? ; 18= 1950 ; 3= 1951?? ; 2= 1951? ; 15= 1951 ; 3= 1952?? ; 4= 1952? ; 6= 1952 ; 8= 1953? ; 4= 1953 ; 1= 1954?? ; 4= 1954? ; 20= 1954 ; 3= 1955? ; 4= 1955 ; 2= 1956?? ; 6= 1956? ; 1= 1957? ; 1= 1958?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):165



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