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OC57

Information - Help 
ID = 34351
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Transistor   Audio Frequency 
Identical to OC57
Similar Tubes
Normally replaceable-slightly different:
  2SB158 ; AC129 ; OC350 ; OC53 ; OC54 ; OC65
Different maximum ratings:
  OC622
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.
Also manufactured by Mullard, Philips and other related companies.
-

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
3 x 4 x mm / 0.12 x 0.16 x inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   KTT 1969/70
  d_valvo_oc57_appl.png
  OC57: Valvo_Dioden_Transistoren_1959
Thomas Günzel
 
oc57.png
OC57: R.O.
Rudolf Osterkamp

More ...
 
oc57ff_s.gif
OC57: Valvo Handbuch 1968
Günther Stabe † 19.8.20

 
d_valvo_oc57.png
OC57: Valvo_Dioden_Transistoren_1959
Thomas Günzel


Usage in Models 1= 1962 ; 1= 1963?

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

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