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3AX71B

Information - Help 
ID = 46032
       
Country:
People's Republic of China
Brand: Common type China (PRC) tube/semicond.
Tube type:  Transistor   Audio Frequency 
Identical to 3AX71B
Similar Tubes
Normally replaceable-slightly different:
  OC72 ; OC75
Predecessor Tubes 3AX31D  

Base Wires
Filament Solid State
Description

Material/Aufbau/Pol.: Germanium Legierung PNP;
Form/Case/Outline: ~ R-43;
Daten/electr.data: I F: _ mA; U F: __ V; Isp: <10 µA; ß (beta): 50-150; N: 125 mW; Imax(Ic): 125 mA; Umax(Uce): -18 V; f g(FT): <1 MHz; tmax j: __ °C.
Varianten: 3AX71A = Uce: -12 V; 3AX71C = Uce: -25 V;
3AX71D = Uce: -12 V, Imax: 20 mA;
3AX71E = hfe: 20-85, Uce: -12 V, Imax: 30 mA, N: 100 mW;
3AX71F = Uce: -9 V, Imax: 30 mA; N: 100 mW;
3AX71H = Uce: -6 V, Imax: 30 mA, N: 100 mW.
Manufactured by Dongxin Electronics (PRoC)
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Dimensions (WHD)
incl. pins / tip
6 x 15 x mm / 0.24 x 0.59 x inch
Weight 1 g / 0.04 oz
Information source -- Schematic   
 
r43_4.gif
3AX71B: TTT Steidle 1981
Günther Stabe

 

Usage in Models 2= 1965?? ; 26= 1966?? ; 1= 1966 ; 1= 1967 ; 4= 1968?? ; 1= 1969 ; 1= 1974??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):36

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