radiomuseum.org

OA51

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ID = 34444
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Solid-State-Diode   Universal 
Identical to OA51
Similar Tubes
Normally replaceable-slightly different:
  1N54A
First year 1952 ? -- Collector info (Sammler) Lit. Radio Vol. 5 No 1 1952-02
First Source (s)
1954 : Philips Bulletin Germaniumdioden Dr. S.D.Boon 1954
Successor Tubes OA61  
Base Wires
Description

Germanium point contact diode for universal purpose.
-

 
Text in other languages (may differ)
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 Funk-Technik (FT)   17/1953 S.525, Valvo Germanium-Dioden, Tabelle
-- Collector info (Sammler)   KTT 1969/70
oa51_typical_circuitry.png
OA51: Philips Service Manual TD1420U
Bernhard Nagel
oa51_s.gif OA51: Valvo
Günther Stabe † 19.8.20
oa51_data_ft_17_1953.png
OA51: FT 17/1953 S.525
Bernhard Nagel
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Usage in Models 1= 1950 ; 3= 1953 ; 2= 1954? ; 1= 1954 ; 1= 1955? ; 1= 1955 ; 1= 1958?? ; 2= 1958
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12
Literature "Radio" Vol. 5 No. 1 | 1952-02
Literature "Germanium-Dioden"

Collection of

Jan Terranea (NL)
Bernhard Nagel (D)
 
philips_oa51_img1.jpg

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