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ID = 34443
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Solid-State-Diode 
Identical to OA61
Similar Tubes
Normally replaceable-slightly different:
First Source (s)
Mar.1955 : -- Collector info (Sammler)
Predecessor Tubes OA51  
Successor Tubes OA71  

Base Wires
Filament Solid State

Material/Aufbau: Germanium Punktkontakt (Schwarzpegel-) Diode;
Form/Case: rund, mit konischen Enden;
Daten/ I F: 7.5 mA; U F: 1 V; I sp: 40 µA; U sp: 50 V; Imax: 5 mA; Umax: 85 V; tmax j: 60 °C.

Dimensions (WHD)
incl. pins / tip
6 x 14 x mm / 0.24 x 0.55 x inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   KTT 1969/70
OA61: my collection
Andrew Wylie

OA61: KTT 1969/70
Günther Stabe † 19.8.20

OA61: Manufacturer's Literature
Anonymous 15 Collector

Usage in Models 1= 1953 ; 3= 1954?? ; 1= 1955??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

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