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SF197

Information - Help 
ID = 64893
       
Country:
Spain
Brand: Piher, Tudela
Tube type:  Transistor   VHF 
Identical to SF197
Similar Tubes
Normally replaceable-slightly different:
  KSC1674
Other base and data slightly different:
  BF199
Base Wires
Description

NPN silicon planar-epitaxial transistor for FI stages with AGC in TV tuners.
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Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 5 x 2 x 2 mm / 0.20 x 0.08 x 0.08 inch
Weight 1 g / 0.04 oz
Information source - - Manufacturers Literature   PIHER
x_149~~10.gif SF197: TTT Steidle 1981
Günther Stabe † 19.8.20
Usage in Models 2= 1972? ; 1= 1974?? ; 2= 1977?? ; 2= 1978?? ; 1= 1979??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8
 
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