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EF5

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ID = 1728
       
Country:
Netherlands
Brand:
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to EF5 = TEF5 = MEF5 = VEF5 = 6E1_Ultron
Similar Tubes
Normally replaceable-slightly different:
  EF25
First year May.1936 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
May.1936 : Philips Bulletin
11.Feb.1936 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Predecessor Tubes AF3   CF3   EF3   EF4  
Successor Tubes 1938   EF9  
Base Europe side contact P8A (Au P, 8SC) (Codex=Sf)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
  ef5.png
  EF5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
ef5_rt_f.jpg
EF5: Collection JR
Jacob Roschy
More ...
 
au25_1.png
EF5: RTT 1974 (Franzis) 13. Auflage
Martin Renz
More ...
 
ef5_spec.png
EF5: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...

from Just Qvigstad
Usage in Models 3= 1936?? ; 29= 1936? ; 150= 1936 ; 9= 1937?? ; 29= 1937? ; 286= 1937 ; 10= 1938?? ; 21= 1938? ; 89= 1938 ; 5= 1939?? ; 5= 1939? ; 22= 1939 ; 3= 1940?? ; 11= 1940 ; 4= 1941 ; 4= 1942 ; 3= 1943 ; 1= 1944 ; 1= 1946? ; 2= 1946 ; 1= 1947?? ; 1= 1952? ; 6= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):695
Collection of Jacob Roschy (D)
Collection of Hartmut Völler (D)
Collection of Christian Schaufelberger (CH)
Collection of Patrice Zeissloff (F)
Collection of Wolfgang Bauer (A)
Collection of Karl - Heinz Bossan (D)
Collection of Frank Cuffe (IRL)
Collection of Ottmar Rollmann (D)
Collection of Nikolaus Löwe (D)
Collection of Georges Werts (B)
Collection of Danko Tkalec (HR)
Collection of Jacky Parmentier (F)
Collection of Tomasz Szczesniak (PL)
Collection of Hannu Alho (FIN)
Collection of Jean-Jacques Pontigny (F)
Collection of Rodolfo Gaston Wenceslao Nasasta (RA)
Collection of Antonio Bordini (I)
Collection of Michael Gnaedig-Fischer (MEX)
Collection of Alexander Hofer (A)
Collection of Marco Lagendijk (NL)
Collection of Jean-Luc Prevot (F)
Forum contributions about this tube
EF5
Threads: 1 | Posts: 1
Hits: 2779     Replies: 0
EF5 (EF5)
Reinhard Hanschke
29.Jul.07 		  1
EF5 (EF5) 

Neupreis 1938: 59.-- FFR. Lit.: Catalog der Firma MANUFRANCE (MF) von 1938.
 
EF5
End of forum contributions about this tube
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