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BF440

Information - Help 
ID = 36015
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transistor   VHF 
Identical to BF440
Similar Tubes
Normally replaceable-slightly different:
  BF324 ; BF340 ; BF450 ; BF540 ; MPS6580 ; S331T ; TIS37 ; TIS38

Base Wires
Filament Solid State
Description PNP silicon transistor intended as FM mixer and oscillator or IF amplifier.

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
  bf440_appl.png
  BF440
Thomas Günzel
 
bf440_1.jpg
BF440: G.S.
Günther Stabe

 
to92_16.gif
BF440: TVT 1969 Verlag Nolde Dachau
Günther Stabe

 
bf440_dat1.png
BF440: Telefunken
Thomas Günzel


Usage in Models 1= 1970?? ; 1= 1972 ; 4= 1973 ; 7= 1974 ; 1= 1975?? ; 1= 1975 ; 2= 1976?? ; 1= 1976? ; 1= 1980?? ; 1= 1980? ; 4= 1980 ; 1= 1981? ; 1= 1984 ; 2= 1985?? ; 1= 1985? ; 1= 1989? ; 3= 1990? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):34


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