Antique radios, Old Time Radios

OA73

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

OA73: Funkschau 5/65 S.121 Egon Strampe
OA73: DVT 1971 ECA Günther Stabe † 19.8.20		OA73: Valvo_Dioden_Transistoren_1959 Thomas Günzel † 1.8.22 More ...

Usage in Models

1= 1955?? ; 1= 1956 ; 1= 1960?? ; 1= 1960? ; 1= 1960 ; 1= 1961? ; 2= 1961 ; 1= 1962? ; 7= 1962 ; 2= 1963?? ; 3= 1963? ; 3= 1964? ; 1= 1964 ; 3= 1965? ; 2= 1965 ; 1= 1966? ; 1= 1968 ; 5= 1969?? ; 1= 1970? ; 1= 1970 ; 1= 1971

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):40

Collection of

Roy Johnson (GB)

Marcello Astolfi (I)

Peter Pfeiffer (D)

Karlheinz Fischer (D)

OA73

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