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NR4

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ID = 14549
       
Country:
Hungary
Brand: Sator (brand of Tungsram for tubes)
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to NR4
Similar Tubes
Normally replaceable-slightly different:
  AR495 ; E438 ; REN1004 ; W415N

Base Europe 5-Pin (O5A, B5) (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
nr4_sator.jpg
NR4: www.radiowelt-austria.com
Manfred Kröll † 2.9.2013

 
7_30.png
NR4: Telefunken Werkstattbuch
Wolfgang Bauer

 
nr4data.png
NR4: own collection
Peter den Boer



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