Transmitter - Received AM radio


Posted on Feb 6, 2014

Using ceramic tuning 3. 587 mhz resonator and resonator filters are also sold with a value of 5. 5mhz, 7. 7 mhz and 10. 7 mhz. Distance transmitter range is approximately 2-4km. the working principle of this circuit are filter resonator/ceramic filtersraise the frequency of the value of the resonator filter. This frequency is amplified by the transistor can be changed t1.


Transmitter - Received AM radio
Click here to download the full size of the above Circuit.

Frequency so need C7 as a regulator / placement. sound signalsuperimposed over the audio transformer. frekuensi which awakened byresonator filters and t1 is fed to the next amplifystrengthened so as to achieve the desired power passed toantenna. t2 and t3 as a buffer as a final power amp. For AM radio because it`s hard to find IC ZN 414then now could be replaced with the equivalent of IC MK 484. Frequency coverage between 550 kHz-1600 mhz, 3 pins of this IC includeseries of radio tuner, RF amplifiers, automatic gain control, the AM detector. The series voltage regulator or a power transistor made by BC108B, 4diada IN 4148, 2k7, 820R, and the 10K trimpot, trimpot functions forselectivity of the controller of all series. Then weusing a booster class A and class B amplifier for signalmodulated not disappear.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    LED Power Meter
    12V White LED Driver
    Simple Audio-Frequency Vco
    Reverse engineering the Elco heating protocol
    Mini-MosFet Audio Amplifier
    Circuit 3 LED battery monitor Schematic Diagram
    COLLEGE QUIZ BUZZER
    battery charger circuit
    stereo
    Lighting Consultancy and Supply
    YD9088 FM RECEIVER CIRCUIT FOR BATTERY SUPPLY
    A three-phase motor phase automatic protection circuit
    CIC2851E refrigerator closed remind schematic



    Top