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ID = 43028
Brand: Intermetall Halbleiterwerk, Düsseldorf
Tube type:  Transistor   RF/IF-Stage 
Identical to BF127
Similar Tubes
Normally replaceable-slightly different:
  BF198 ; BF225 ; BF310
Other base and data slightly different:

Base Wires
Filament Solid State
Description Material/Aufbau/Pol.: Silizium Planar NPN;
Form/Case/Outline: Plastik, 4 Pins;
Daten/ I F: 4 mA; U F: 10 V; Isp: __ µA; ß (beta): >30; N: 330 mW; Imax(Ic): 25 mA; Umax(Uce): 30 V; f g(FT): 350 MHz; tmax j: 125 °C.
Ahnlich/similar: TT55, TT67, TT127, TT136, TT167, TT343, TT501, TT502, TT503, TT505, TT516, TT524, TT515 (STC-Cannon);
Dimensions (WHD)
incl. pins / tip
5 x 3 x 5 mm / 0.20 x 0.12 x 0.20 inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   Towers IVT
  BF127: Funkschau 22/73 S.872
Egon Strampe
BF127: Ebay:michaelwalther1946
Günther Stabe

BF127: Intermetall
Günther Stabe

BF127: ITT_Transistoren 1971_72
Thomas Günzel

Usage in Models 1= 1966? ; 1= 1968? ; 2= 1969 ; 2= 1970?? ; 1= 1970 ; 1= 1971? ; 2= 1972

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

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