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2SB257

Information - Help 
ID = 50015
       
Country:
Japan
Brand: Toshiba Corporation; Tokyo
Tube type:  Transistor   Audio Frequency 
Identical to 2SB257
Similar Tubes
Normally replaceable-slightly different:
  AC107 ; AC122

Base Wires
Filament Solid State
Description PNP germanium alloy transistor intended as AF 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 1 g / 0.04 oz
Literature - - -   
- - -   Towers IVT
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- - -
 
to1_ttt_313.gif
2SB257: TTT Steidle 1981
Günther Stabe

 

Usage in Models 1= 1965?? ; 1= 1966 ; 1= 1967?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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