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ID = 34183
Brand: Intermetall Halbleiterwerk, Düsseldorf
Tube type:  Transistor   Audio Frequency 
Identical to OC303
Similar Tubes
Other shape (e.g. bulb type):
  OC70 ; OC71 ; OC815
Normally replaceable-slightly different:
  3AX31D ; AC122 ; AC151 ; OC1303
First Source (s)
Mar.1957 : -- Collector info (Sammler)
Predecessor Tubes OC33  
Successor Tubes OC304  

Base Wires
Filament Solid State
Description PNP germanium junction transistor intended as AF pre-amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
6 x 10 x mm / 0.24 x 0.39 x inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   TVT 1979/80 ECA, KTT 1969/70
  OC303: TEFI KC1/Ko-Ba
Günther Stabe
OC303: G.S.
Günther Stabe

OC303: TVT 73
Günther Stabe


Usage in Models 3= 1958 ; 2= 1962 ; 8= 1963 ; 2= 1964 ; 1= 1965?? ; 4= 1965 ; 4= 1966

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):24

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