Extracting the 5th Harmonic

#11

March 12th 04, 03:21 PM

Reg Edwards

Posts: n/a

According to Fourier, at some mark-space ratios of a square wave certain
harmonics may be missing from the spectrum.

Just generate a a train of very short sharp pulses from the oscillator and
you will find all the harmonics are present allbeit with reducing
amplitudes. A single transistor should do the job.

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