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E438M

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ID = 3897
       
 
   
Tube type:  Triode, vacuum   Universal 
Identical to E438M
Similar Tubes
Normally replaceable-slightly different:
  MH4 ; REN904

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

E438M is equivalent to MH4 (Marconi) and REN904.

 

7_100.png E438M: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1931 ; 1= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
 

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