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DE3

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ID = 3602
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Triode, vacuum   Universal 
Identical to DE3 = VT28_GPO
Similar Tubes
Normally replaceable-slightly different:
  DE3_Nelson
Other base:
  DE3_UX
First Source (s)
1923 : British Radio Valves - The Vintage Years, Thrower

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 2.8 Volts / If 0.06 Ampere / Direct
Literature Saga of the Vacuum Tube, Tyne   1925 Brown Brothers Catalog 217
Taschenbuch zum Röhren-Codex 1948/49   
 
marconi_de3_bild1.jpg
DE3: Meine Sammlung
Rudolf Osterkamp

 
de3_spec.png
DE3: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector


Usage in Models 1= 1922 ; 1= 1923?? ; 6= 1923 ; 1= 1924? ; 4= 1924 ; 2= 1925? ; 5= 1925 ; 1= 1926? ; 1= 1926

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):22


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