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ID = 34902
Brand: Siemens; D (S.& Halske / S. Electrogeräte)
Tube type:  Transistor   Power/Output 
Identical to AD157
Similar Tubes
Normally replaceable-slightly different:
  AD161 ; AD165
First Source (s)
Mar.1963 : -- Collector info (Sammler)

Base SPECIAL TUBEBASE in general
Filament Solid State
Description NPN germanium alloy transistor intended as power amplifier in AF applications.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
19 x 31 x 10 mm / 0.75 x 1.22 x 0.39 inch
Weight 6 g / 0.21 oz
Information source -- Collector info (Sammler)   KTT 1969/70
AD157: Daniel Doll
Daniel Doll

More ...
AD157: ECA TVT, Bd1, 1986
Michael Schlör


Usage in Models 1= 1971? ; 15= 1971 ; 2= 1972? ; 15= 1972 ; 15= 1973 ; 2= 1974 ; 1= 1975

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):51

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