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OA79

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ID = 33566
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Solid-State-Diode   Detector 
Identical to OA79 = OA72
Similar Tubes
Normally replaceable-slightly different:
  1G95 ; 1N60P ; 2AP13 ; 2AP3 ; 40P1 ; 41P1 ; AA111 ; AA113 ; AA119 ; AM32 ; DS81 ; GEX34 ; GSD5/105 ; K5/105 ; K5/2 ; OA159 ; OA172 ; OA179 ; RL232g ; RL32g ; RL52 ; SFD107 ; SFD111 ; SFD115
Different maximum ratings:
  OA182
First year 1956 -- Collector info (Sammler) Aufgrund fixer Modelle.
First Source (s)
Mar.1957 : Valvo-Berichte
Successor Tubes AA119  
Base Wires
Description

Germanium contact point high-frequency diode, intended for use as detector in FM receivers: for this application factory matched pairs were also sold. 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 - - Manufacturers Literature   Valvo-Handbuch 1968, KTT 1969/70
oa79_umgeb.gif
OA79: Braun T22
Günther Stabe † 19.8.20     More ...
do29.gif OA79: Dioden-Vergleichstabelle 1971 ECA München
Günther Stabe † 19.8.20
oa79_kennl1.png
OA79: Valvo Handbuch 1968
Günther Stabe † 19.8.20
More ...
Usage in Models 1= 1956? ; 11= 1956 ; 8= 1957? ; 52= 1957 ; 4= 1958?? ; 20= 1958? ; 100= 1958 ; 5= 1959?? ; 14= 1959? ; 135= 1959 ; 29= 1960?? ; 33= 1960? ; 182= 1960 ; 19= 1961?? ; 24= 1961? ; 175= 1961 ; 15= 1962?? ; 51= 1962? ; 166= 1962 ; 21= 1963?? ; 36= 1963? ; 92= 1963 ; 13= 1964?? ; 20= 1964? ; 81= 1964 ; 32= 1965?? ; 9= 1965? ; 58= 1965 ; 16= 1966?? ; 14= 1966? ; 37= 1966 ; 2= 1967?? ; 6= 1967? ; 18= 1967 ; 4= 1968?? ; 2= 1968? ; 11= 1968 ; 6= 1969?? ; 11= 1969? ; 5= 1969 ; 9= 1970?? ; 2= 1970? ; 4= 1970 ; 3= 1971?? ; 1= 1971? ; 2= 1972?? ; 2= 1972? ; 1= 1973?? ; 4= 1973? ; 2= 1975?? ; 1= 1975? ; 2= 1980?? ; 2= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1573

Collection of

Jacky Parmentier (F)
Michael Mischke (D)
Horst Willers (D)
Wilfried Hofmüller (A)
Wolfgang Bauer (A)
Hermann Fleischanderl (A)
Marcello Astolfi (I)
Hans Smit (NL)
Michael Gnaedig-Fischer (MEX)
 
oa79_1.jpg

OA79
 
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