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  1. phil7

    Ultrasonic cleaner

    I have a project to develope an ultrasonic cleaner for cleaning fruits,vegetables,dishes and so on. But I have no idea about this. Could anyone help me on this? A theory and schematic diagram will be a great help for me.
  2. phil7

    Electroneuro stimulator

    Thanks to everybody read this article. I need a help to find out a schematic diagram for electroneuro stimulator that use low frequenciy rectangular  pulse ranged from several  hertz to hundreds hertz. Is there anyone who give me a help on this?
  3. phil7

    cuckoo sound generator

    I found the schematic for the cuckoo sound generator at the electronics-lab.com/projects/misc/011. But,when I check the schematic diagram, I found the collecotr of the Q1 was just opend and floated. Did  anybody check this circuit? Is it O.K?
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