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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 base P (P8A) (Codex=Sf)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Parallel / series AC/DC
Tube prices 2 Tube prices (visible for members only)
Literature 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
 
au25_1.png
EF5: RTT 1974 (Franzis) 13. Auflage
Martin Renz
 
ef5_spec.png
EF5: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
Usage in Models 3= 1936?? ; 26= 1936? ; 141= 1936 ; 9= 1937?? ; 25= 1937? ; 282= 1937 ; 11= 1938?? ; 16= 1938? ; 88= 1938 ; 6= 1939?? ; 4= 1939? ; 21= 1939 ; 4= 1940?? ; 11= 1940 ; 4= 1941 ; 4= 1942 ; 3= 1943 ; 1= 1944 ; 1= 1946? ; 2= 1946 ; 1= 1947?? ; 1= 1952? ; 9= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):673
Collection of Rodolfo Gaston Wenceslao Nasasta (RA)
Collection of Tomasz Szczesniak (PL)
Collection of Michael Gnaedig-Fischer (MEX)
Collection of Wolfgang Bauer (A)
Collection of Hannu Alho (FIN)
Collection of Marco Lagendijk (NL)
Collection of Christian Schaufelberger (CH)
Collection of Georges Werts (B)
Collection of Jacky Parmentier (F)
Collection of Karl - Heinz Bossan (D)
Collection of Hartmut Völler (D)
Collection of Jacob Roschy (D)
Collection of Frank Cuffe (IRL)
Collection of Patrice Zeissloff (F)
Collection of Antonio Bordini (I)
Collection of Jean-Luc Prevot (F)
Collection of Jean-Jacques Pontigny (F)
Collection of Alexander Hofer (A)
Collection of Ottmar Rollmann (D)
Forum contributions about this tube
EF5
Threads: 1 | Posts: 1
Hits: 2357     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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