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ID = 51669
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Solid-State-Diode   Universal 
Identical to AAY21
Similar Tubes
Normally replaceable-slightly different:

Base Wires

Material/Aufbau: Germanium Punktkontakt;
Form/Case/Outline: DO-7;
Daten/ I F: 10 mA; U F: 0.5 V; I sp: 50 µA; U sp: 10 V; N: __ mW; Imax: 20 mA; Umax: 15 V; 12 ns; <1.5 pF; tmax j: 60 °C.
Schneller Schalt-Diode

Dimensions (WHD)
incl. pins / tip
3 x 7 x mm / 0.12 x 0.28 x inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   KTT 1969/70

do7_132.gif AAY21
Günther Stabe † 19.8.20

AAY21: Valvo Taschenbuch 1970
Heinz Höger

Usage in Models 1= 1967?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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