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AC172

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ID = 33963
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Transistor   Audio Frequency 
Identical to AC172
Similar Tubes
Other characteristic (electr. data):
  AC127
First Source (s)
Mar.1962 : Valvo-Berichte
Base Wires
Description NPN germanium alloy transistor for AF low noise pre-amplifier applications.
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Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 6 x 10 x mm / 0.24 x 0.39 x inch
Weight 2 g / 0.07 oz
Information source -- Collector info (Sammler)   KTT 1969/70, TVT 1979 ECA
ac_172.png
AC172: valvoinfo 11/64
Egon Strampe
to1_ttt_194.gif AC172: TTT Steidle 1981
Günther Stabe † 19.8.20
ac172_daten1.png
AC172: Philips Semiconductor Handbook, 1966
Markus Müllner
More ...
Usage in Models 1= 1963? ; 2= 1964? ; 4= 1964 ; 2= 1965?? ; 3= 1965? ; 15= 1965 ; 1= 1966?? ; 3= 1966? ; 24= 1966 ; 2= 1967? ; 12= 1967 ; 1= 1969 ; 1= 1970?? ; 1= 1970
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):72

Collection of

Christian ADAM (F)
Museum Roggenhofer (A)
 
ac172_web.jpg

AC172
 
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