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BF257

Information - Help 
ID = 36459
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Transistor   Universal 
Identical to BF257
Similar Tubes
Normally replaceable-slightly different:
  2N1338 ; 2SC154 ; 2SC470 ; 2SC58 ; 2SC59 ; 2SC65 ; 2SC66 ; 2SC805 ; 2SC95 ; BD150 ; BF109 ; BF110 ; BF114 ; BF140 ; BF156 ; BF157 ; BF179 ; BF258 ; BF305 ; BFY43 ; BFY45 ; SFT186 ; SFT187 ; TVT6 ; КТ601А ; П308 ; П309
Different maximum ratings:
  2SC64 ; 2SC69 ; BF137
Other base and data slightly different:
  BC117 ; BC236 ; BC394 ; BF297 ; BF411 ; BFR86 ; MF178 ; MPS-L01

Base Wires
Filament Solid State
Description NPN silicon planar transistor for video applications.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
9 x 7 x 8 mm / 0.35 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   TVT 1979/80 ECA, TTT Steidle 1981
  bf257.gif
  BF257: Funktechnik 15/69
Egon Strampe
 
bf257.jpg
BF257: g.h.
Gerhard Heigl

 
to39_ttt_23.gif
BF257: TTT Steidle 1981
Günther Stabe † 19.8.20

 
d_siemens_bf257_dat1.png
BF257: Siemens Einzelhalbleiter 1972/73
Thomas Günzel


Usage in Models 1= 1968 ; 4= 1969 ; 3= 1970?? ; 1= 1970? ; 4= 1970 ; 2= 1972 ; 1= 1974 ; 3= 1975?? ; 1= 1975? ; 3= 1975 ; 2= 1978

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):25


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