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Solve noise for amplifier

Discussion in 'Electronic Basics' started by Chauny, Apr 20, 2007.

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  1. Chauny

    Chauny Guest

    Hello people,

    I make a amplifier circuit with TDA2030, the amplifier works but when
    i connect it to loudspeaker, turn on the power, i hear noise from
    loudspeaker without input. I can not solve this problem although i
    make layout with center ground.
    Could anybody help me solve this problem?

  2. patel moni

    patel moni Guest

    i made instument for that i use same ic for audio amplifier
    so u want that ckt?
    i ll give u?
    i got output corectly
    may be other signal amlified &u get wrong result
  3. Chauny

    Chauny Guest

    Yes, i do. Could you give me?
    Thank you so much!
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