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2T51

Information - Help 
ID = 35619
       
Country:
Japan
Brand: Sony Corporation; Tokyo
Tube type:  Transistor   Frequency converter 
Identical to 2T51
First Source (s)
Jan.1955 : -- Collector info (Sammler)
Successor Tubes 2T73  

Base Wires
Filament Solid State
Description Material/Aufbau/Pol.: Germanium Fläche NPN;
Form/Case: TO-22;
Daten/electr.data: I F: 1 mA; U F: 4.5 V; Isp: 10 µA; ß (beta): ___; N: 40 mW; Imax(Ic): 5 mA; Umax(Uce): 25 V; f g(FT): 4 MHz; tmax j: __ °C.
Manufactured by Sony (Japan) 1955-1957. 
Dimensions (WHD)
incl. pins / tip
8 x 9 x 4 mm / 0.31 x 0.35 x 0.16 inch
Weight 1 g / 0.04 oz
Literature -- Collector info (Sammler)   DatasheetArchive.com
 
to_22_21.gif
2T51: TTT Steidle 1981
Günther Stabe

 

Usage in Models 2= 1955 ; 1= 1956?? ; 4= 1956 ; 2= 1957 ; 1= 1958

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10

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