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2S31

Information - Help 
ID = 38430
       
Country:
Japan
Brand: TEN (brand), Kobe Kogyo Corporation; Kobe
Tube type:  Transistor   RF/IF-Stage 
Identical to 2S31
Similar Tubes
Normally replaceable-slightly different:
  2N409 ; 2N410 ; 2N412 ; 2S25 ; 2SA53 ; OC45
Predecessor Tubes 2NJ5  
Successor Tubes 2SA32  
Base Wires
Description PNP germanium alloy transistor intended as AM IF amplifier.
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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 1 g / 0.04 oz
Information source -- Schematic   
to1_ttt_38.gif 2S31: TTT Steidle 1981
Günther Stabe † 19.8.20
Usage in Models 1= 1955?? ; 1= 1957 ; 1= 1958?? ; 2= 1958? ; 3= 1959? ; 2= 1959 ; 2= 1960?? ; 1= 1960? ; 2= 1960 ; 6= 1961? ; 1= 1961 ; 1= 1962?? ; 1= 1962? ; 1= 1962 ; 1= 1963?? ; 1= 1964? ; 1= 1965??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):28

Collection of

Günther Stabe † 19.8.20 (D)
 
2s31_kobe.jpg

 
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