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R425

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ID = 37842
       
Country:
United States of America (USA)
Brand: Texas Instruments, Dallas
Tube type:  Transistor   RF/IF-Stage 
Identical to R425
First Source (s)
Mar.1960 : -- Schematic

Base Wires
Description Material/Aufbau/Pol.: Silizium (?) PNP;
Form/Case: TO-1;
Daten/electr.data: I F: __ mA; U F: __ V; Isp: __ µA; ß (beta): __; N: __ mW; Imax(Ic): __ mA; Umax(Uce): -__ V; f g(FT): >30 MHz; tmax: __ °C.
KW Oszillator. 
Dimensions (WHD)
incl. pins / tip
6 x 10 x mm / 0.24 x 0.39 x inch
Weight 2 g / 0.07 oz

r_425.png
R425: Funkschau 24/63 S.685
Egon Strampe

to1_138.gif R425: TVT 1969 Verlag Nolde Dachau
Günther Stabe † 19.8.20

Usage in Models 2= 1962

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
 

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