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OC72

Information - Help 
ID = 33685
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Transistor   Power/Output 
Identical to OC72 = 2OC72 = 2N282 = 2N281 = WN5432
Similar Tubes
Other shape (e.g. bulb type):
  2N320 ; 2SB56 ; 988T1
Normally replaceable-slightly different:
  2G108 ; 2G109 ; 2G270 ; 2G271 ; 2N188 ; 2N241A ; 2S113 ; 2S114 ; 2S115 ; 2S14 ; 2SB156 ; 2SB79 ; 3AX71B ; AC128 ; AC152 ; GC509 ; GTE2 ; L-5028 ; OC1072 ; OC307 ; OC308 ; OC602spez ; OC604spez ; OC74 ; OC76 ; OC78 ; OC78D ; SFT121 ; SFT122 ; SFT123 ; SFT322 ; SFT353 ; ST122 ; T-1008 ; V10/15A
Different maximum ratings:
  AC124 ; AC131 ; AC153 ; AC188 ; AC193 ; GFT22 ; TF66 ; V10/30A
Other base and data slightly different:
  987T1
First Source (s)
Oct.1954 : Valvo-Berichte
Predecessor Tubes OC12   OC14  
Successor Tubes OC74  

Base Wires
Filament Solid State /
Description

PNP germanium transistor intended as low power amplifier / switch in AF applications. All-glass body with heat sink. Red dot indicates collector.
Also made by Philips and related manufacturing plants.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
5 x 15 x mm / 0.20 x 0.59 x inch
Weight 4 g / 0.14 oz
Literature -- Collector info (Sammler)   KTT 1969/70

  oc72_umg.gif
  OC72: Grundig Micro Transistor 59
Günther Stabe
 
d_valvo_oc72.jpg
OC72: Eigene Sammlung
Thomas Günzel

 
Variants
 
r9_3.gif
OC72: TTT Steidle 1981
Günther Stabe

 
d_valvo_oc72_1.png
OC72: Valvo_Dioden_Transistoren_1959
Thomas Günzel


Usage in Models 1= 1955? ; 1= 1955 ; 1= 1956?? ; 4= 1956? ; 21= 1956 ; 3= 1957?? ; 6= 1957? ; 48= 1957 ; 5= 1958?? ; 22= 1958? ; 73= 1958 ; 4= 1959?? ; 22= 1959? ; 82= 1959 ; 37= 1960?? ; 31= 1960? ; 86= 1960 ; 5= 1961?? ; 7= 1961? ; 58= 1961 ; 8= 1962?? ; 11= 1962? ; 44= 1962 ; 6= 1963?? ; 7= 1963? ; 21= 1963 ; 2= 1964?? ; 4= 1964? ; 9= 1964 ; 10= 1965?? ; 3= 1965? ; 8= 1965 ; 2= 1966 ; 1= 1968?? ; 1= 1970? ; 1= 1970 ; 1= 1973? ; 2= 1975?? ; 3= 9999
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):661

OC72*Box

aus eigener Sammlung
Karl-Heinz Entrich
   

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