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EL3

Information - Help 
ID = 281
       
Country:
Netherlands
Brand:
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
Identical to EL3 = 3REP6 = TEL3 = VEL3
Similar Tubes
Heater different:
  EL3N
Heater and shape different:
  AL3
Other base and data slightly different:
  PP6C
First year May.1936 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
May.1936 : Philips Bulletin
Predecessor Tubes AL3  
Successor Tubes 1938   EL3N  

Base Europe side contact base P (P8A) (Codex=Seo)
Filament Vf 6.3 Volts / If 1.2 Ampere / Indirect / Parallel, (AC/DC) /
Description The EL3 of the red series is a 6.3 volts- version of the AL3, inclusively the round cathode, though with a straight tubular bulb with a narrowed upper section. As with AL3/AL4 before, after some months the EL3 was replaced with the directly replaceable EL3N, with the more efficient profile-cathode, reduced heater current and the usual dome bulb
[Jacob Roschÿ, 13 Feb 2003]

Only an EL3 with a straight cylindrically bulb is a true EL3, which was produced only during a few months in 1936..37.

Versions with a bulgy bulb are normally the newer EL3N's, even if only EL3 is printed on, due to indolence.

The same happened with tube lineup lists on radios or on schematic diagrams, where EL3 is mentioned, though EL3N is meant, since the former EL3 was obsolte then. 
Text in other languages (may differ)
Tube prices 6 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   

  el3.png
  EL3: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
el3_146r.jpg
EL3: Collection JR
Jacob Roschy

 
38_4.png
EL3: Telefunken Werkstattbuch
Wolfgang Bauer

 
el3_spec_1.png
EL3: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 2= 1936?? ; 7= 1936? ; 88= 1936 ; 2= 1937?? ; 17= 1937? ; 148= 1937 ; 6= 1938?? ; 21= 1938? ; 210= 1938 ; 16= 1939?? ; 17= 1939? ; 119= 1939 ; 24= 1940?? ; 9= 1940? ; 79= 1940 ; 2= 1941?? ; 12= 1941? ; 90= 1941 ; 2= 1942?? ; 1= 1942? ; 68= 1942 ; 8= 1943?? ; 43= 1943 ; 3= 1944?? ; 3= 1944? ; 13= 1944 ; 16= 1945?? ; 14= 1945? ; 47= 1945 ; 19= 1946?? ; 7= 1946? ; 46= 1946 ; 15= 1947?? ; 5= 1947? ; 50= 1947 ; 41= 1948?? ; 11= 1948? ; 20= 1948 ; 19= 1949?? ; 9= 1949? ; 51= 1949 ; 25= 1950?? ; 6= 1950? ; 17= 1950 ; 6= 1951?? ; 2= 1951? ; 5= 1951 ; 2= 1952?? ; 2= 1952? ; 4= 1952 ; 2= 1953?? ; 1= 1953 ; 7= 1955?? ; 1= 1955 ; 1= 9999? ; 7= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1468


Forum contributions about this tube
EL3
Threads: 2 | Posts: 5
Hits: 2343     Replies: 0
EL3 (EL3)
Reinhard Hanschke
11.Aug.07
  1

Neupreis 1938: 59,00 FFR. Lit.: Catalog der Fa. MANUFRANCE (MF) von 1938.

 
Hits: 4348     Replies: 3
EL3 and EL3N
Bruno Gandolfo-Canepa
20.Mar.06
  1 Respected tubes specialist,

Do you can comment the differences between the EL3 and the EL3N tubes? 

It is significant the difference to replace an EL3 by an EL3N instead of another EL3? 

Thanks in advance,
Bruno.
Robert Sarbell
20.Mar.06
  2 Caro amico Bruno,

According to the Funke RPG model W19 test data cards on sheet 0225, the EL3 and EL3N are equivalent. The primary difference is essentially between the shape and dimension of the tube envelopes. Both tubes have the 6.3 volt heaters and 0.9A current.

For the possible use in the model 360A, either tube will suffice, unless there are dimensional limitations for the tube.

a piu tarde,
Roberto
Jacob Roschy
20.Mar.06
  3

Hello Bruno,


the EL3N is the replacement for the older and original EL3.


Aside the bulb, the difference between them is the reduced heater current of 0.9 A by the EL3N compared with 1.2 A by the EL3, as a result of a higher efficient cathode.


Due to negligence some later specimens were designated as EL3, although they were actually EL3Ns by their construction and data.

 

See more about EL3 and EL3N in  4

 

Best Regards

Jacob

Bruno Gandolfo-Canepa
22.Mar.06
  4 Caro amico Roberto,

Thanks by your comments and aid to obtain the NOS EL3N for the Cathedral Philips 360A.  As you know I am seeking two EF5 to initiate the restoration. 

Hello Jacob,

I have seen in the market that the EL3 and the EL3N are offered indistinctly. Now I know that they are not exactly equivalent.   
Congratulations by The Philips Red valves series.  They are three very stimulating articles.  Thanks by your comment. 

Best regards,
Bruno.



 
EL3
End of forum contributions about this tube

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