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OF9

Information - Help 
ID = 19817
       
Country:
Argentina
Brand: Philips Argentina, FAPESA, Miniwatt tubes; Buenos Aires
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to OF9
Similar Tubes
Heater different:
  UF9

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 / Series, AC/DC /
Description

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

 
Literature

 
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OF9: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
of9babanidoc.png
OF9: Patrice ZEISSLOFF
Patrice Zeissloff


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