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BC638

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ID = 40314
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Transistor   Power/Output 
Identical to BC638
Similar Tubes
Normally replaceable-slightly different:
  2SA561 ; 2SA697 ; 2SA719 ; 2SA773 ; 2SA953 ; BC538 ; OC926 ; OC9276 ; OC952 ; OC9566 ; OC9746
Other class quality (otherwise equal):
  BCY11

Base Wires
Filament Solid State
Description PNP silicon planar transistor intended as driver / low power 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, TTT Steidle 1981
  bc_637_bc_638.png
  BC638: Schema R7200
Egon Strampe
 
bc638_1.jpg
BC638
Egon Strampe

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sot54_ttt_1.gif
BC638: TTT Steidle 1981
Günther Stabe † 19.8.20

 
bc638_data1.png
BC638: Valvo Transistoren, 1974
Michael Schlör

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Usage in Models 5= 1975?? ; 1= 1976 ; 1= 1977 ; 1= 1978 ; 2= 1980

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10


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