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OC71 Info
Country:  Europe      Brand:  Common type Europe 
  Tube type:  Transistor   Audio Frequency 
Tube ID = 33679
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Identical to OC71
Similar Tubes OC75 (other class quality (otherw. equal))   OC602 (can normally be replaced - small diff'ce)   OC604 (other class quality (otherw. equal))   TF65 (other shape (e.g. bulb, size))   AC122 (other shape (e.g. bulb, size))   AC125 (other shape (e.g. bulb, size))   AC126 (other shape (e.g. bulb, size))   AC151 (other shape (e.g. bulb, size))   OC70 (can normally be replaced - small diff'ce)   OC303 (other shape (e.g. bulb, size))   992T1 (other shape (e.g. bulb, size))   GFT21 (different maximum ratings)   OC603 (can normally be replaced - small diff'ce)   2N132 (other shape (e.g. bulb, size))   SFT153 (can normally be replaced - small diff'ce)   OC870 (other base and data slightly different)   SFT151 (can normally be replaced - small diff'ce)   SFT152 (can normally be replaced - small diff'ce)   SFT102 (can normally be replaced - small diff'ce)   989T1 (can normally be replaced - small diff'ce)   2SB44 (can normally be replaced - small diff'ce)   2SB75 (other shape (e.g. bulb, size))   2N406 (can normally be replaced - small diff'ce)   TK22C (can normally be replaced - small diff'ce)   WN5420 (can normally be replaced - small diff'ce)   GTE1 (can normally be replaced - small diff'ce)   OC302 (can normally be replaced - small diff'ce)  
First Source (s) Mar.1954 : Valvo-Berichte
Predecessor Tubes OC11  
Successor Tubes AC122   AC125   OC75  

Base Wires
Was used by Radio/TV-reception etc.
Filament
Description PNP germanium transistor intended as pre-amplifier / driver in AF applications. All-glass body. Red dot indicates collector.
Also made by Philips and related manufacturing plants.

Text in other languages (may differ)
Dimensions (WHD) 5 x 15 x mm / 0.20 x 0.59 x inch
Weight 3 g / 0.11 oz
Literature -- Collector info (Sammler)   KTT 1969/70

  oc71_umg.gif
  Grundig Micro Transistor Boy 59
Günther Stabe
oc71_1.jpg
Eigene Sammlung
Hermann Fleischanderl

 
r9_2.gif
TTT Steidle 1981
Günther Stabe

 
d_valvo_oc71_1.png
Valvo_Dioden_Transistoren_1959
Thomas Günzel

Usage in Models   1= 1955? ; 1= 1955 ; 3= 1956 ; 9= 1957 ; 4= 1958? ; 15= 1958 ; 1= 1959?? ; 1= 1959? ; 16= 1959 ; 2= 1960?? ; 6= 1960? ; 14= 1960 ; 14= 1961 ; 3= 1962?? ; 2= 1962? ; 10= 1962 ; 2= 1963?? ; 1= 1963? ; 5= 1963 ; 1= 1964?? ; 2= 1964 ; 3= 1965?? ; 5= 1965 ; 1= 1966?? ; 1= 1967 ; 2= 9999 ;
Number of Models with this tube   125
No further Information for

OC71    

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