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BF494

Information - Help 
ID = 36478
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Transistor   RF/IF-Stage 
Identical to BF494 = BF495
Similar Tubes
Normally replaceable-slightly different:
  BF233 ; BF238 ; BF240 ; BF254 ; BF454 ; BF454 ; BF594 ; CS1655 ; ED1502 ; OC933 ; OC934 ; S300T
Other base and data slightly different:
  MPS9603
Predecessor Tubes BF254  

Base Wires
Filament Solid State
Description NPN silicon planar transistor intended as AM/FM 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)   TVT 1979/80 ECA, TTT Steidle 1981
  bf494_umgeb1.gif
  BF494: FM-ZF-Verst.:Philips 22AC860
Günther Stabe
 
bf494_1_1.jpg
BF494: MM
Michael Mehnert

 
to92_bec_4.gif
BF494: TVT 1969 Verlag Nolde Dachau
Günther Stabe

 
bf494_dat1.png
BF494: Valvo
Thomas Günzel


Usage in Models 1= 1967?? ; 8= 1970?? ; 3= 1970? ; 2= 1971? ; 2= 1972?? ; 11= 1972? ; 3= 1973? ; 3= 1974?? ; 3= 1974? ; 4= 1974 ; 29= 1975?? ; 15= 1975? ; 17= 1975 ; 8= 1976?? ; 13= 1976? ; 30= 1976 ; 2= 1977? ; 26= 1977 ; 4= 1978?? ; 6= 1978? ; 16= 1978 ; 2= 1979?? ; 10= 1979? ; 15= 1979 ; 18= 1980?? ; 20= 1980? ; 9= 1980 ; 2= 1981? ; 4= 1981 ; 1= 1982?? ; 16= 1982? ; 5= 1982 ; 5= 1983?? ; 5= 1983? ; 14= 1983 ; 2= 1984 ; 2= 1985?? ; 1= 1986?? ; 3= 1986 ; 2= 1987?? ; 1= 1988?? ; 1= 1990?? ; 2= 1991 ; 1= 1995?? ; 6= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):353


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