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ID = 11230
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:
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 P8A (Au P, 8SC) (Codex=Sc) Top contact with a cap.
Filament Vf 6.3 Volts / If 1.35 Ampere / Indirect / Specified voltage AC/DC

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)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1942

EL50: Internet
Miguel Angel Trujillo-Rodriguez

134.png EL50: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
EL50: own collection
Peter den Boer

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

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

Collection of



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