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ID = 34301
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transistor   Power/Output 
Identical to AD138
Similar Tubes
Other base and data slightly different:
  AD133 ; TF90/30
First Source (s)
Mar.1962 : Telefunken-Zeitung

Base OTHER TUBEBASE in general
Filament Solid State /
Description PNP germanium junction transistor for AF power amplifier applications.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
26 x 38 x 12 mm / 1.02 x 1.50 x 0.47 inch
Weight 10 g / 0.35 oz
Literature -- Collector info (Sammler)   KTT 1969/70, TVT 1979 ECA

  AD138: Funktechnik 14/65
Egon Strampe
AD138: Eigene Sammlung
Siegfried Neumann

AD138: TVT 1979/80 ECA
Günther Stabe

AD138: Telefunken, Halbleiter Handbuch 66/67
Michael Schlör

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