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OA73

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ID = 34735
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Solid-State-Diode   Detector 
Identical to OA73
Similar Tubes
Normally replaceable-slightly different:
  1N87G ; OA159 ; OA70
First year 11.Jan.1955 Valvo-Berichte Germanium-Dioden in Allglas-Technik OA70 - OA74
First Source (s)
Mar.1957 : Valvo-Berichte
Base Wires
Description

Germanium contact point high-frequency diode, 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
Information source - - Manufacturers Literature   Valvo-Handbuch 1968, KTT 1969/70
oa_73.png
OA73: Funkschau 5/65 S.121
Egon Strampe
do29_28.gif OA73: DVT 1971 ECA
Günther Stabe † 19.8.20
d_valvo_oa73_1.png
OA73: Valvo_Dioden_Transistoren_1959
Thomas Günzel † 1.8.22
More ...
Usage in Models 1= 1955?? ; 1= 1956? ; 1= 1956 ; 1= 1960?? ; 1= 1960? ; 1= 1960 ; 1= 1961? ; 2= 1961 ; 1= 1962? ; 9= 1962 ; 2= 1963?? ; 3= 1963? ; 3= 1964? ; 2= 1964 ; 3= 1965? ; 3= 1965 ; 9= 1966?? ; 1= 1966? ; 2= 1966 ; 1= 1968 ; 3= 1969?? ; 1= 1970? ; 1= 1970 ; 1= 1971
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):54

Collection of

Roy Johnson (GB)
Marcello Astolfi (I)
Peter Pfeiffer (D)
Reinhard Zwirner (D)
Karlheinz Fischer (D)
 
mullard_oa73_detail.jpg

OA73
 
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