TV preamplifier circuit

Posted on Mar 28, 2007

Amp circuit as shown in the pre-television. The pre-amplifier circuit is Qioi and other parts of xlol. Q [ol and biasing element is configured as a common emitter IF amplifier,

TV preamplifier circuit
Click here to download the full size of the above Circuit.

IF signal through a coupling capacitor c] ol Qioi added to the base, is amplified by the collector output, and then through a coupling capacitor C103 is applied to a surface acoustic wave filter XjoJ input device (the coupling capacitor has a DC blocking effect). Inductor Lioi and collector load resistor R106 in parallel Qioi, the use of high-frequency signal L10l high impedance characteristics in the pre-amp to compensate for high-frequency characteristics.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Simple GAL Programmer
    Solar tracking System with AT89C2051
    USB Audio Interface based DAC PCM2902
    Arduino Multiplexing
    300w power amplifier circuit with 2n773
    maximum minimum voltage indicator
    motion detector schematics
    Battery status indicator circuit diagram