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EA50

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ID = 4051
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Signal Diode - one single system   Detector 
Identical to EA50 = 6D1 = 4623 = CV1092 = VR92 = 10E/105 = 2B35
Similar Tubes
Normally replaceable-slightly different:
  6DR4_Fivre ; EA50N ; LG14 ; SD61
Other characteristic (electr. data):
  CV375
Heater and shape different:
  D1_Mazda_GB
Other base:
  CK606BX
Other base and data slightly different:
  4674
Multiple differences or of other kind:
  4Д5С ; D1_HF-Diode ; VR78
First year 27.Mar.1939 -- Original-techn. papers. Philips Datenblatt
First Source (s)
Apr.1939 : -- Original-techn. papers. Philips-Archive
Predecessor Tubes 4674   T6D   LG14  
Base 3 pin wires in line (1937, B3G) (Codex=So 11)
Filament Vf 6.3 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Description

EA50 substitute = 2B35

 
Dimensions (WHD)
incl. pins / tip		 12 x 37 x mm / 0.47 x 1.46 x inch
Tube prices 4 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
ea50.png
EA50: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
ea50.png EA50: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector
More ...
Just Qvigstad 		ea50_techdat01.png
EA50: SEL Handbuch 1964
Peter Hoddow
More ...
Usage in Models 2= 1939 ; 1= 1940? ; 1= 1941? ; 1= 1942?? ; 1= 1942 ; 1= 1944 ; 1= 1946?? ; 2= 1948?? ; 2= 1948? ; 2= 1948 ; 2= 1949? ; 5= 1949 ; 2= 1950?? ; 10= 1950 ; 3= 1952? ; 2= 1952 ; 2= 1953? ; 3= 1953 ; 1= 1954? ; 1= 1955 ; 1= 1956? ; 1= 1956 ; 1= 1957? ; 1= 1958?? ; 2= 1958? ; 1= 1959?? ; 1= 1960?? ; 1= 1962 ; 1= 1964? ; 1= 1965 ; 1= 1967
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):57
Museum "Porthcurno Telegraph Museum"

Collection of

Museum Roggenhofer (A)
Robert Gillespie (USA)
Jay Kinnard (USA)
Christian Schaufelberger (CH)
Patrice Zeissloff (F)
Emilio Ciardiello (I)
Georges Werts (B)
Collection of a member from FIN
Sándor Selyem-Tóth (H)
Danko Tkalec (HR)
Otto Frosinn (D)
Collection of a member from D
Michael Niermann (D)
Stefan Müller (D)
Jacob Roschy (D)
 
ea50_a_en.jpg

EA50
 
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