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2SA31

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ID = 38663
       
Country:
Japan
Brand: TEN (brand), Kobe Kogyo Corporation; Kobe
Tube type:  Transistor   RF/IF-Stage 
Identical to 2SA31
Similar Tubes
Normally replaceable-slightly different:
  2N411 ; 2N412 ; 2S30 ; 2SA52 ; OC44
Predecessor Tubes 2S30  
Successor Tubes 2SA52  
Base Wires
Was used by Radio/TV-reception etc.
Description

PNP germanium alloy transistor intended as AM IF amplifier

 
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
to1_ttt_137.gif 2SA31: TTT Steidle 1981
Günther Stabe † 19.8.20
Usage in Models 1= 1959?? ; 1= 1959? ; 1= 1959 ; 1= 1960?? ; 1= 1960? ; 2= 1960 ; 2= 1961? ; 3= 1961 ; 4= 1962? ; 1= 1963?? ; 4= 1963? ; 2= 1963 ; 1= 1964?? ; 3= 1964? ; 4= 1965?? ; 1= 1965? ; 1= 1966?? ; 2= 1966 ; 2= 1968?? ; 3= 1970??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):40

Collection of

Michael Gnaedig-Fischer (MEX)
Günter Kudicke (D)
Marcello Astolfi (I)
 
2sa31.jpg

2SA31
 
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