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OA81

Information - Help 
ID = 33866
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Solid-State-Diode   Universal 
Identical to OA81 = MF5336
Similar Tubes
Normally replaceable-slightly different:
  1G21 ; AA117 ; AA118 ; AA132 ; AA134 ; CG62H ; CV1353 ; OA91 ; RL43g ; SFD108
Different maximum ratings:
  AA113 ; OA150 ; OA161 ; OA174
First Source (s)
Mar.1955 : Valvo-Berichte
Predecessor Tubes OA71  
Successor Tubes OA91  
Base Wires
Description

Germanium point contact general-purpose 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-Taschenbuch 1963, KTT 1969/70
oa81_umgeb1.gif
OA81: Braun transistor 1: Anodenspannungserzeugung
Günther Stabe † 19.8.20
do29_6.gif OA81: TVT 1969 Verlag Nolde Dachau
Günther Stabe † 19.8.20
d_valvo_oa81.png
OA81: Valvo_Dioden_Transistoren_1959
Thomas Günzel † 1.8.22
More ...
Usage in Models 1= 1955?? ; 2= 1955 ; 1= 1956?? ; 5= 1956? ; 14= 1956 ; 2= 1957?? ; 7= 1957? ; 46= 1957 ; 2= 1958?? ; 11= 1958? ; 96= 1958 ; 3= 1959?? ; 9= 1959? ; 81= 1959 ; 32= 1960?? ; 2= 1960? ; 123= 1960 ; 16= 1961?? ; 26= 1961? ; 87= 1961 ; 16= 1962?? ; 21= 1962? ; 90= 1962 ; 16= 1963?? ; 19= 1963? ; 49= 1963 ; 27= 1964?? ; 12= 1964? ; 49= 1964 ; 20= 1965?? ; 23= 1965? ; 48= 1965 ; 39= 1966?? ; 10= 1966? ; 38= 1966 ; 3= 1967?? ; 21= 1967? ; 30= 1967 ; 10= 1968?? ; 8= 1968? ; 9= 1968 ; 9= 1969?? ; 15= 1969? ; 10= 1969 ; 25= 1970?? ; 1= 1970? ; 6= 1970 ; 6= 1971?? ; 1= 1971? ; 1= 1971 ; 2= 1972?? ; 1= 1973 ; 1= 1974 ; 1= 1975? ; 2= 1977? ; 1= 9999??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1206

Collection of

Reinhard Zwirner (D)
Martin Renz (D)
Alois Wolf (D)
Peter Pfeiffer (D)
Günter Kudicke (D)
Oskar Elm (D)
Hans Smit (NL)
Museum Roggenhofer (A)
George Papaiz (CDN)
Joachim Haas (D)
Howard Craven (GB)
Collection of a member from E
Hermann Fleischanderl (A)
Wilfried Hofmüller (A)
Marcello Astolfi (I)
Peter Steffen (CH)
Michael Ludwigs (CH)
 
oa81_3ta.jpg

OA81
 
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