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OA70

Information - Help 
ID = 33694
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Solid-State-Diode   Detector 
Identical to OA70 = AA138
Similar Tubes
Normally replaceable-slightly different:
  17P1 ; 1K34A ; 1N60 ; 1N87G ; 1NN41 ; 1S188 ; 1T23 ; 2AK1 ; 2AP ; 2AP9 ; 36D22 ; 40P1 ; 41P1 ; AA116 ; AAY27 ; DOG52 ; GEX34 ; MA51A ; MA80 ; OA160 ; OA73 ; OA90 ; RL31 ; RL41 ; SFD104 ; SFD110 ; WN5457
First Source (s)
Mar.1954 : Valvo-Berichte
Successor Tubes OA90  

Base Wires
Was used by Radio/TV-reception etc.
Filament Solid State
Description Germanium contact point high-frequency diode, intended for use as detector in AM receivers. 75 degrees C max operating temperature.
Also made by the other Philips related manufacturers. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
5 x 12 x mm / 0.20 x 0.47 x inch
Weight 1 g / 0.04 oz
Literature - - Manufacturers Literature   Valvo-Handbuch 1968, KTT 1969/70
  oa70_umg.gif
  OA70: Grundig Micro Transistor Boy 59
Günther Stabe
 
oa70_3.jpg
OA70: Sammlung
Wolfgang Bauer

 
do29_1.gif
OA70: DVT 1971 - Dioden-Vergleichs-Tabelle
Günther Stabe

 
oa70_kennl1.png
OA70: Valvo Handbuch 1968
Günther Stabe


Usage in Models 1= 1953? ; 2= 1954?? ; 2= 1954 ; 2= 1955? ; 3= 1955 ; 4= 1956? ; 19= 1956 ; 3= 1957?? ; 3= 1957? ; 55= 1957 ; 3= 1958?? ; 31= 1958? ; 107= 1958 ; 4= 1959?? ; 18= 1959? ; 92= 1959 ; 24= 1960?? ; 33= 1960? ; 71= 1960 ; 9= 1961?? ; 31= 1961? ; 52= 1961 ; 14= 1962?? ; 36= 1962? ; 46= 1962 ; 13= 1963?? ; 10= 1963? ; 32= 1963 ; 16= 1964?? ; 6= 1964? ; 25= 1964 ; 25= 1965?? ; 7= 1965? ; 36= 1965 ; 5= 1966?? ; 6= 1966? ; 24= 1966 ; 6= 1967?? ; 9= 1967? ; 26= 1967 ; 14= 1968?? ; 1= 1968? ; 8= 1968 ; 1= 1969?? ; 1= 1969? ; 7= 1969 ; 5= 1970?? ; 1= 1970? ; 2= 1971?? ; 2= 1971? ; 2= 1971 ; 1= 1972?? ; 1= 1972 ; 1= 1973?? ; 4= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):962


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