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  1. hakyman

    Electronic Stethoscope 2

    hi again i built the circuit but it seemed not so good. the filter part seems ok when i give a sound like sssssss it not sense to this but i gave a bass sound like boooo yeah it give an o/p. but when i heard a sound its have pıt pıt pııttpı i cant...
  2. hakyman

    Electronic Stethoscope 2

    Thank you so much audioguru for your kind and quick reply. i get the components. i'll share my experiments with you when finished and then ill add the circuits to apply an ADC circuit and try the output convert in digital. Thank You so much again...
  3. hakyman

    Electronic Stethoscope 2

    hi again. audioguru u wrote the cutoff frequency of LPF is 103hz but i read that the heartsound frequency range is 20 to 200 hz. and for medical care the cutoff should be 600hz(for listening lung etc.) what do u think? i'd like to say smth about the lm358 circuit i built it up and i get a weak...
  4. hakyman

    Electronic Stethoscope 2

    hi audioguru. i need to ask that the output of the circuit is sufficient to apply to a adc circuit. could i transfer the output to a pc in digital format. i mean i want to monitor the output signal of this circuit on pc. and second question; can i add a power amp circuit to output of this...
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