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OA74

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ID = 46364
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Solid-State-Diode   Universal 
Identical to OA74 = MF1193
Similar Tubes
Normally replaceable-slightly different:
  2AP1_Diode
First year 11.Jan.1955 Valvo-Berichte Germanium-Dioden in Allglas-Technik OA70 - OA74
Base Wires
Description

Germanium contact point diode for universal purpose, 60 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
do29_148.gif OA74: DVT 1971 ECA
Günther Stabe † 19.8.20
oa74_daten1.png
OA74: Philips Techn.Bibliothek Ge-Dioden 1955
Günther Stabe † 19.8.20
More ...
Usage in Models 2= 1955 ; 1= 1957? ; 1= 1957 ; 1= 1958? ; 1= 1960?? ; 1= 1960? ; 4= 1960 ; 4= 1961 ; 1= 1962? ; 9= 1962
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):25

Collection of

Michael Mischke (D)
Rudolf Osterkamp (D)
 
oa74.jpg

OA74
 
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