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ID = 44807
Brand: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München
Tube type:  Transistor   Power/Output 
Identical to BD109
Similar Tubes
Normally replaceable-slightly different:
  BD106 ; BD107 ; BD124
Other base and data slightly different:
  GE-66 ; PC100 ; SO5003

Base SPECIAL TUBEBASE in general
Description NPN silicon planar transistor for switch / AF power applications.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
19 x 8 x 31 mm / 0.75 x 0.31 x 1.22 inch
Weight 8 g / 0.28 oz
Information source -- Collector info (Sammler)   KTT 1969/70

BD109: Funkschau 1971 H.23, S.774
Günther Stabe † 19.8.20

sot9_valvo_1.gif BD109: Valvo
Günther Stabe † 19.8.20

BD109: Siemens Einzelhalbleiter 1972/73
Thomas Günzel † 1.8.22

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Usage in Models 2= 1968 ; 1= 1970?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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