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AF279

Information - Help 
ID = 37210
       
Country:
Germany
Brand: Siemens; D (S.& Halske / S. Electrogeräte)
Tube type:  Transistor   UHF 
Identical to AF279
Similar Tubes
Normally replaceable-slightly different:
  AF267 ; AF367 ; AF369
Predecessor Tubes AF239  

Base Wires
Filament Solid State
Description PNP germanium planar transistor intended as VHF pre-stage amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
5 x 3 x 5 mm / 0.20 x 0.12 x 0.20 inch
Weight 1 g / 0.04 oz
Literature -- Collector info (Sammler)   KTT 1969/70, TTT Steidle 1981, TVT 1979/80
  af279af280_1.gif
  AF279: Schema: Yunost 402 BE
Egon Strampe
 
d_siemens_af279s.jpg
AF279: Eigene Sammlung
Siegfried Neumann

 
w22_3.gif
AF279: TTT Steidle 1981
Günther Stabe

 
d_siemens_af279_dat1.png
AF279: Siemens Einzelhalbleiter 1972/73
Thomas Günzel


Usage in Models 1= 1968?? ; 4= 1968 ; 2= 1969? ; 2= 1969 ; 2= 1970? ; 6= 1970 ; 1= 1971? ; 1= 1971 ; 1= 1973 ; 6= 1975?? ; 2= 1975? ; 1= 1975 ; 1= 1977?? ; 8= 1979?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):38


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