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    Hi all
    Does anyone know how the audio circuit of this device works. . does he use 4046?

    Click image for larger version

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  • #2
    Hey there yes the audio oscillator is built with 4046.

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    • #3
      sniff sniff in new repack. audio circuit is PWM released on NE555.

      https://www.youtube.com/watch?v=9KMS9jQc7TY

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      • #4
        Attached Files

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        • #5
          whole schematic now. must see sniff sniff with 4046.

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          • #6
            It's nothing new, nothing novel, nothing to be excited about. Copy/paste from Pulse Star 2.

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            • #7
              a schematic of Pulse Star 2 is unaccessable. the time to do sniff sniff.

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              • #8
                Thank youkt315
                I tried it but it gives a continuous sound like minelab... it does not cut the sound

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                • #9
                  [附件]55595[/附件][附件]55596[/附件][附件]55596[/附件] J2-9 J2-10 Connected by 10 potentiometer
                  Attached Files

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                  • #10
                    Originally posted by beiduo View Post
                    [附件]55595[/附件][附件]55596[/附件][附件]55596[/附件] J2-9 J2-10 Connected by 10 potentiometer
                    Do you have layout this audio

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