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ID = 37868
Brand: Toshiba Corporation; Tokyo
Tube type:  Transistor   Frequency converter 
Identical to 2S12
Similar Tubes
Normally replaceable-slightly different:
  2N140 ; 2N410 ; 2N411 ; 2SA52 ; GT761R
First Source (s)
Mar.1957 : -- Schematic
Successor Tubes 2SA52   2S30  

Base Wires
Filament Solid State

PNP germanium alloy transistor intended as AM mixer / oscillator.

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
  2S12: Radio Shack R-6277
Günther Stabe
2S12: TTT Steidle 1981
Günther Stabe


Usage in Models 2= 1957 ; 1= 1958? ; 3= 1958 ; 2= 1959?? ; 5= 1959? ; 3= 1960??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):16

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