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ID = 43989
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transistor   Audio Frequency 
Identical to BC156
Similar Tubes
Normally replaceable-slightly different:
  BC121 ; BC155

Base Wires
Filament Solid State
Description NPN silicon epitaxial planar miniature transistor intended as AF amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
4 x 2 x 2 mm / 0.16 x 0.08 x 0.08 inch
Weight 1 g / 0.04 oz
Information source - - -   
- - -   KTT 1969/70
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BC156: Eigene Sammlung
Siegfried Neumann

BC156: Telefunken
Günther Stabe † 19.8.20

BC156: Telefunken_Halbleiter_1967
Thomas Günzel

Usage in Models 1= 1970 ; 3= 1971? ; 1= 1985??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

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