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KF4M

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ID = 33777
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to KF4M
Similar Tubes
Other class quality (otherwise equal):
  KF4
Differences not known by us:
  KF4MB

Base Europe side contact P8A (Au P, 8SC) Top contact with a cap.
Was used by Military and/or Government
Filament Vf 2 Volts / If 0.05 Ampere / Direct / Battery =


Just Qvigstad
Usage in Models 1= 1938? ; 1= 1943?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
kf4m.jpg

KF4M
 

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