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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:
  BF173 ; 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
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
Information source -- Collector info (Sammler)   TTT Steidle 1981, TVT 1979/80
bf311.png
BF311: Telefunken Ch 709
Egon Strampe
r185_1.gif BF311: TTT Steidle 1981
Günther Stabe † 19.8.20
More ...
 bf311_dat.png
BF311: Telefunken Taschenbuch 1971
Heinz Höger
Usage in Models 1= 1968 ; 1= 1969? ; 6= 1969 ; 1= 1970?? ; 1= 1970 ; 1= 1971? ; 1= 1971 ; 4= 1972? ; 2= 1972 ; 1= 1974 ; 1= 1989??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):20
Literature "Telefunken Laborbuch V (Taschenbuch dunkelblau)"

Collection of

Oskar Elm (D)
Museum Roggenhofer (A)
Peter Pfeiffer (D)
Egon Strampe (D)
Wilfried Hofmüller (A)
Marcello Astolfi (I)
Jörg Kulbe (D)
Michael Mischke (D)
 
bf311.png

BF311
 
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