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BF441

Information - Help 
ID = 35558
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transistor   VHF 
Identical to BF441
Similar Tubes
Normally replaceable-slightly different:
  BF243 ; BF340 ; BF341 ; BF451 ; BF540
Different maximum ratings:
  BF342 ; BF343
First Source (s)
Mar.1973 : -- Collector info (Sammler)
Base Wires
Description Material/Aufbau/Pol.: Silizium Planar PNP;
Form/Case: TO-92 Anschlussfolge BEC;
Daten/electr.data: I F: 1 mA, U F: <0.8 V, Isp: <0.1 µA, ß (beta): 30-125, N: 300 mW, Imax (Ic): 25 mA, Umax (Uce): -40 V, f g(FT): 250 MHz, tmax: __ °C.
Vergleichstypen: BF451, BF324, BF540...542. 
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)   TVT 1979/80 ECA, TTT Steidle 1981
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bf441_ukw_touring105.png
BF441: ITT SCHAUB-LORENZ
Thomas Günzel † 1.8.22     More ...
bf441_so.png BF441: ECA TVT, Bd1, 1986
Anonymous 10 Collector
bf441_dat1.png
BF441: Telefunken
Thomas Günzel † 1.8.22
More ...
Usage in Models 2= 1970?? ; 1= 1971?? ; 1= 1971 ; 1= 1972? ; 17= 1973 ; 5= 1974 ; 2= 1975?? ; 9= 1975 ; 1= 1976? ; 3= 1976 ; 1= 1977? ; 10= 1977 ; 1= 1978? ; 1= 1978 ; 1= 1979? ; 1= 1979 ; 1= 1980?? ; 3= 1980 ; 2= 1981?? ; 1= 1983? ; 1= 1987? ; 1= 1989?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):66

Collection of

Museum Roggenhofer (A)
Jacky Parmentier (F)
Marcello Astolfi (I)
Günther Stabe † 19.8.20 (D)
Oskar Elm (D)
 
bf441.jpg

BF441
 
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