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EL50

Information - Help 
ID = 11230
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to EL50 = 10E/131
Similar Tubes
Different maximum ratings:
  4654
First year Nov.1940 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Feb.1941 : -- Original-techn. papers.
Predecessor Tubes 4654  

Base Europe side contact base P (P8A) (Codex=Sc) Top contact with a cap
Filament Vf 6.3 Volts / If 1.35 Ampere / Indirect / Parallel, (AC/DC)
Description

Typical Working Condition:- Va=375, Vs=275, -Vg=17.5, Ia=48mA, Ri=28k.

 
Text in other languages (may differ)
Tube prices 2 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1942
  el50.png
  EL50: Internet
Miguel Angel Trujillo-Rodriguez
 
el50_a.jpg
EL50: RFJ
Roy Johnson

 
134.png
EL50: Telefunken Werkstattbuch
Wolfgang Bauer

 
el50data1.png
EL50: own collection
Peter den Boer


Usage in Models 1= 1941?? ; 1= 1945?? ; 1= 1954 ; 1= 1960??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


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