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E409N

Information - Help 
ID = 15808
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Power/Output 
Identical to E409N
Similar Tubes
Normally replaceable-slightly different:
  E409 ; RS4309
Other class quality (otherwise equal):
  4614
First year 1928 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
1929 : -- Original-techn. papers.
Predecessor Tubes E409  

Base Europe 5-Pin (O5A, B5) (Codex=F)
Filament Vf 4 Volts / If 1 Ampere / Indirect
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
7_104.png
E409N: Telefunken Werkstattbuch
Wolfgang Bauer

 
e409n_dat.png
E409N: Franzis-Verlag_Röhrenhandbuch Ratheiser
Heinz Höger


Usage in Models 1= 1933?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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