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BF311

Information - Help 
ID = 37213
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transistor   UHF 
Identical to BF311
Similar Tubes
Normally replaceable-slightly different:
  BF197 ; BF199 ; BF224 ; BF271 ; MPS6511 ; SE1001 ; SE5020 ; SE5021 ; SE5023 ; SE5024 ; SE5029 ; SE5030 ; SE5031 ; SF245
Other base and data slightly different:
  BF125 ; BF168 ; MF500
Base Wires
Filament Solid State
Description NPN silicon transistor intended as IF amplifier in TV applications.
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Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 5 x 5 x 4 mm / 0.20 x 0.20 x 0.16 inch
Weight 1 g / 0.04 oz
Literature -- Collector info (Sammler)   TTT Steidle 1981, TVT 1979/80
  bf311.png
  BF311: Telefunken Ch 709
Egon Strampe
 
bf311.png
BF311: Eig. Samml.
Egon Strampe
 
r185_1.gif
BF311: TTT Steidle 1981
Günther Stabe
 
bf311_dat.png
BF311: Telefunken Taschenbuch 1971
Heinz Höger
Usage in Models 1= 1968 ; 2= 1969 ; 1= 1970 ; 1= 1974
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5
Literature "Telefunken Laborbuch V (Taschenbuch dunkelblau)"
Collection of Jörg Kulbe (D)
Collection of Oskar Elm (D)
Collection of Wilfried Hofmüller (A)
Collection of Egon Strampe (D)
Collection of Peter Roggenhofer † 25.4.18 (A)
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