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Reply To: Machine riddle no.2 – 100 HZ signal producing

#1188
Haajee

    Other than pure sine wave have harmonics; but keep in mind it depends that Even or Odd harmonics are in the distorted wave-form Square & Triangular waveforms have only one of the even or odd harmonics, I do not remember. Fourier Analysis can reveal it. So filter may pass such harmonics if those are there in the distorted waveform.