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OA71

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ID = 34220
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Solid-State-Diode   Universal 
Identical to OA71
First year 11.Jan.1955 Valvo-Berichte Germanium-Dioden in Allglas-Technik OA70 - OA74
First Source (s)
Mar.1957 : -- Collector info (Sammler)
Predecessor Tubes OA61  
Successor Tubes OA81  
Base Wires
Description

Germanium point contact universal diode.
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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
Information source -- Collector info (Sammler)   KTT 1969/70
0a71_sch.png
OA71: Röhrenhandbuch 1995 Franzis-Verlag
Heinz Höger
sod6_2.gif OA71: DVT 1971 ECA
Günther Stabe † 19.8.20
oa71_daten1.png
OA71: Miniwatt Halbleiterdaten 1960, Wiveg
Markus Müllner
More ...
Usage in Models 1= 1955?? ; 3= 1955? ; 6= 1955 ; 1= 1956? ; 1= 1956 ; 1= 1957? ; 3= 1957 ; 2= 1958? ; 6= 1958 ; 5= 1959 ; 1= 1960? ; 2= 1961 ; 1= 1962 ; 1= 1964? ; 1= 1964
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):35

Collection of

Roy Johnson (GB)
Reinhard Zwirner (D)
Nikolaus Löwe (D)
 
mullard_oa71.jpg

OA71
 
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