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PF9

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ID = 19822
       
Country:
Argentina
Brand: Philips Argentina, FAPESA, Miniwatt tubes; Buenos Aires
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to PF9
Similar Tubes
Other shape (e.g. bulb type):
  6K7G
Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description

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

 
Information source
s_321_g_6.gif PF9: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

Just Qvigstad 		pf9.png
PF9: Röhren-Vademekum 1947
Helmut Weigl
More ...
Usage in Models 1= 1938?? ; 1= 1940? ; 1= 1942? ; 1= 1942 ; 1= 1945?? ; 1= 1948?? ; 1= 1950??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7
 
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