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E408

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ID = 15805
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to E408
Similar Tubes
Normally replaceable-slightly different:
  4010K ; E408N ; E410 ; P6_Grammont ; T104 ; U4H
Other base:
  E408_UX4
First year 1928 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Sep.1929 : -- Original-techn. papers.
Successor Tubes 1928   E408N  

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.9 Ampere / Direct / Parallel, (AC/DC)
Description Also to be used as a modulator in a Heising curcuit. 
Dimensions (WHD)
incl. pins / tip
56 x 134 x 32 mm / 2.20 x 5.28 x 1.26 inch
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
philips_e408.jpg
E408
Rudolf Osterkamp

 
s_0_g_11.gif
E408: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
e408kldata1.png
E408: own collection
Peter den Boer


Usage in Models 1= 1928 ; 3= 1929

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


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