record telephone conversations by building this bugging equipment


Posted on Feb 5, 2014



record telephone conversations by building this bugging equipment
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    LM555 LED Blinkers
    Automatic contrast meter
    GUITAR COMPRESSOR SCHEMATIC
    Voltage regulator or resistors to change voltages for motors
    geiger power supply circuit
    simple stereo electret microphone preamplifier
    piano
    prepaid energy meter at89s52
    Telephone transmitter
    LED torch using NSI45090JDT4G constant current regulator
    Lessons In Semiconductors
    LM741 IC for Light Dark Sensor Circuit



    Top