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BC257

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ID = 40119
       
Country:
Germany
Brand: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München
Tube type:  Transistor   Universal 
Identical to BC257
Similar Tubes
Normally replaceable-slightly different:
  2A257 ; BC177 ; BC204 ; BC212 ; BC251 ; BC307 ; BC557
First Source (s)
Mar.1971 : -- Collector info (Sammler)
Base Wires
Description

PNP silicon planar-epitaxial transistor for general purposes.
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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)   KTT 1969/70, TTT Steidle 1981
2n3703_1.png
BC257: Funktechnik 14/75
Egon Strampe
to92_bc_11.gif BC257: TVT 1969 Verlag Nolde Dachau
Günther Stabe † 19.8.20
d_siemens_bc257_dat1.png
BC257: Siemens Einzelhalbleiter 1972/73
Thomas Günzel † 1.8.22
More ...
Usage in Models 2= 1969? ; 4= 1969 ; 1= 1971 ; 1= 1974 ; 1= 1977? ; 1= 1980?? ; 1= 1982? ; 1= 1983 ; 1= 1984? ; 2= 1985?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):15

Collection of

Karlheinz Fischer (D)
Peter Pfeiffer (D)
 
bc257b.jpg

BC257
 
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