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3NFW

Country:  Germany      Brand:  Loewe-(Opta); Deutschland 
  Tube type:  MULTI-SYSTEM, internal coupling   Universal 
Tube ID = 1208
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Identical to 3NFW
First year   1929 Tube leaflet collection E.Erb Analysis by original leaflets

Base Loewe Bajonet, 6-pin + middle pin (Codex=Sp 92)
Filament Vf 4 Volts / If: 1 Ampere / -: Parallel, (AC/DC) /
Description Audion-Triode, NF-Triode und Endtriode kombiniert mit Bauteilen zur Signalkopplung zwischen den Systemen. Die beiden Vorstufen sind indirekt geheizt, die Endstufe direkt.

Das hier dargestellte Sockelschaltbild ist von OBEN gesehen! 
Text in other languages (may differ)
Tube prices 2 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   

3n.f.w.jpg
3NFW: ebay
Uwe Rössler

 
3nfw_sock.png
3NFW: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

 
3nfw_spec.png
3NFW: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models   2= 1929 ; 1= 1930? ; 8= 1930 ; 1= 1931? ; 1= 1932?? ; 2= 1932
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   15

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