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OBF2

Information - Help 
ID = 19813
       
Country:
Argentina
Brand: Philips Argentina, FAPESA, Miniwatt tubes; Buenos Aires
Tube type:  Double Diode-Pentode   RF/IF-Stage 
Identical to OBF2
Similar Tubes
Other base and other heater:
  EBF2

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 8.5 Volts / If 0.15 Ampere / Indirect / Parallel, (AC/DC)
Description

See also: Mysterious P-, O- and U- tube-series

 
Literature
 
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OBF2: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
obf2.png
OBF2: Röhren-Vademekum 1947
Helmut Weigl


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