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E409N

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ID = 15808
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Power/Output 
Identical to E409N
Similar Tubes
Normally replaceable-slightly different:
  DW704 ; 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 , B5 (Eu O, F, O5A) 1928 (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source L'ABCDaire des lampes de TSF des jeunes années   p. 57
- - Manufacturers Literature   
-- Collector info (Sammler)
Taschenbuch zum Röhren-Codex 1948/49

7_104.png E409N: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
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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