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ID = 35080
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Transistor   Audio Frequency 
Identical to OC66
Similar Tubes
Other shape (e.g. bulb type):
  OC71 ; OC811
Normally replaceable-slightly different:
  OC58 ; OC623
First Source (s)
Mar.1957 : Valvo-Berichte
Predecessor Tubes OC65  
Successor Tubes OC58  

Base Wires
Filament Solid State
Description PNP germanium alloy miniature transistor for hearing-aid applications.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
4 x 7 x 3 mm / 0.16 x 0.28 x 0.12 inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   KTT 1969/70, VALVO Adv.
  OC66: Valvo-Adv.Funkschau 1957 H.1 S.44
Günther Stabe † 19.8.20
Karl-Heinz Entrich † 7.21

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OC66: Valvo
Günther Stabe † 19.8.20

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OC66: Miniwatt Halbleiterdaten 1960, Wiveg
Markus Müllner

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Usage in Models 1= 1958?? ; 1= 1961

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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