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ID = 48413
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  IC - Integrated Circuit 
Identical to TDA2140

Base SPECIAL TUBEBASE in general
  • High stability of the 4,4 MHz subcarrier oscillator against temperature and supply voltage variations
  • High noise immunity by triggering ACC and APC circuits
  • High noise immunity of the identification circuit
  • Internal generation of a combined blanking and burst key pulse by means of the flyback pulse
  • When the antenna signal decreases, chroma saturation is automatically reduced before colour killer action
  • Colour killer acts at low antenna signal, or oscillator not locked, or PAL-flipflop incorrectly identified, or no burst
  • The colour killer is working with a hysteresis
  • No adjustments of ACC level and gain are needed
  • Integrated 90° phase shifter
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
22 x 7 x 8 mm / 0.87 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
Information source -- Original-techn. papers.   

dip16_sot38_87.gif TDA2140: TTT Steidle 1981
Günther Stabe † 19.8.20

TDA2140: Telefunken
Thomas Günzel

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Usage in Models 1= 1979?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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