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ID = 39420
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Transistor   Power/Output 
Identical to 1124A = CT1124
Similar Tubes
Normally replaceable-slightly different:

Base SPECIAL TUBEBASE in general
Description Material/Aufbau/Pol.: Germanium Flächen PNP;
Form/Case: TO-3;
Daten/ I F: 0.5 A; U F: 12 V; Isp: 1 mA; ß (beta): 50; N: 25 W; Imax(Ic): 2 A; Umax(Uce): -45 V; f g(FT): 0.4 MHz; tmax: 100 °C.
Austauschtyp: 2N242 (Daten s.o.)
Varianten: 1124 entspr. 2N236A, 1124A / 1124B entspr. 2N242.
Hersteller: (vermutlich) CTP Clevite (USA); vollständige Bezeichnung(en) wäre dann CTP1124(A/B/C). - 
Dimensions (WHD)
incl. pins / tip
38 x 10 x 27 mm / 1.50 x 0.39 x 1.06 inch
Weight 15 g / 0.53 oz
Information source -- Schematic   

to3_159.gif 1124A: TVT 1969 Verlag Nolde Dachau
Günther Stabe † 19.8.20

Usage in Models 1= 1959? ; 2= 1959

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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