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2T20

Information - Help 
ID = 71830
       
Country:
Japan
Brand: Sony Corporation; Tokyo
Tube type:  Transistor   Audio Frequency 
Identical to 2T20
Similar Tubes
Normally replaceable-slightly different:
  AC128

Base Wires
Filament Solid State
Description

PNP germanium junction transistor intended as AF medium power amplifier / driver.
-

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
8 x 7 x 4 mm / 0.31 x 0.28 x 0.16 inch
Weight 1 g / 0.04 oz
 
to22_ktt~~45.gif
2T20: KTT 1969/70
Günther Stabe † 19.8.20

 

Usage in Models 1= 1958 ; 1= 1959? ; 1= 1959 ; 1= 1960? ; 1= 1960 ; 2= 1962

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7

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