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EL5

Information - Help 
ID = 2500
       
Country:
Netherlands
Brand:
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
Identical to EL5 = 6E7_Ultron = 3RKP6 = TEL5 = VEL5
Similar Tubes
Different maximum ratings:
  4689 ; EL5/375
Heater different:
  AL5
Other base:
  EL35 ; EL5G
First year 1936 -- Collector info (Sammler)
First Source (s)
May.1936 : Philips Bulletin
11.Feb.1936 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Predecessor Tubes F443N   L495D  
Successor Tubes EL12   EL6   4654   4699  

Base Europe side contact base P (P8A) (Codex=Seo)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 1.35 Ampere / Indirect / Parallel, (AC/DC)
Description

By demand of more output power new output tubes appeared in 1936 with plate dissipation increased from 9 to 18 watts. In Europe it were the pentodes AL5 (4Vf) and EL5 (6.3Vf), in the USA it was the worlds first and most famous beam- power-tetrode, the 6L6 [Jacob Roschÿ, 5 May 2003]

 
Text in other languages (may differ)
Tube prices 5 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  el5.png
  EL5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
el5_18.jpg
EL5: Collection JR
Jacob Roschy

 
38_5.png
EL5: Telefunken Werkstattbuch
Wolfgang Bauer

 
el5_kennlinie.png
EL5: Ratheiser RTH,3.Aufl.,1964
Egon Penker


Usage in Models 1= 1936?? ; 4= 1936 ; 1= 1937?? ; 28= 1937 ; 6= 1938 ; 1= 1939?? ; 4= 1939 ; 2= 1940 ; 1= 1942 ; 1= 1946?? ; 1= 1946 ; 1= 1948 ; 1= 1952?? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):53



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