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AA138

Information - Help 
ID = 34223
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Solid-State-Diode   Detector 
Identical to AA138 = OA70 = OA90
Similar Tubes
Normally replaceable-slightly different:
  1S80 ; MA51 ; MA51A ; MA80
Different maximum ratings:
  OA160
First Source (s)
Mar.1962 : -- Collector info (Sammler)

Base Wires
Filament Solid State
Description Material/Aufbau: Germanium Punktkontakt;
Form/Case: Allglas, ähnlich DO-29;
Daten/electr.data: I F: 10 mA; U F: 0.9 V; I sp: 18 µA; U sp: 10 V; Imax: 25 mA; Umax: 15 V; tmax: 100 °C.
Dimensions (WHD)
incl. pins / tip
5 x 10 x mm / 0.20 x 0.39 x inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   KTT 1969/70
  aa138_sch.png
  AA138: Telefunken Laborbuch Band V
Heinz Höger
 
diode_aa138.jpg
AA138: J.K.
Jürgen Küting

 
sod6_13.gif
AA138: DVT 1971 ECA
Günther Stabe

 
aa138_data1.png
AA138: Telefunken Handbuch Halbleiter 66/67
Michael Schlör


Usage in Models 3= 1967 ; 3= 1969 ; 2= 1970?? ; 1= 1971?? ; 1= 1972

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


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