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2T81

Information - Help 
ID = 35653
       
Country:
Japan
Brand: Sony Corporation; Tokyo
Tube type:  Transistor   Audio Frequency 
Identical to 2T81
First Source (s)
Jan.1957 : -- Collector info (Sammler)
Predecessor Tubes 2T66  

Base Wires
Filament Solid State
Description Material/Aufbau/Pol.: Germanium Legierung NPN;
Form/Case/Outline: TO-22;
Daten/electr.data: I F: _ mA; U F: _ V; Isp: __ µA; ß (beta): ___; N: __ mW; Imax(Ic): __ mA; Umax(Uce): 25 V; f g(FT): __ MHz; tmax j: __ °C.
(no data available yet)
Manufactured by Sony (Japan) 1957-1959.
Weight 1 g / 0.04 oz
Information source -- Schematic   
 
o_16_1.gif
2T81: TTT Steidle 1981
Günther Stabe

 

Usage in Models 1= 1956

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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