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emf detector

Discussion in 'General Electronics Discussion' started by nuraqilah3, Mar 12, 2014.

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  1. nuraqilah3

    nuraqilah3

    10
    0
    Jan 27, 2014
    hye guys..

    I'm currently building an emf detector to detect the electromagnetic field of a wire.
    The circuit is as shown in the png file that I have attached.
    But in my workshop there is no LM741 op-amp so I changed to an available op-amp OP27. Because the function is still the same.
    The question is why is the circuit not working?

    Can someone briefly explain how the circuit works?
     

    Attached Files:

  2. Arouse1973

    Arouse1973 Adam

    5,165
    1,087
    Dec 18, 2013
    First off, how are you trying to test it to see if this works? And what results are you getting.
    Adam
     
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