Publisher SummaryDistortionDigital ConceptsThe Fast Fourier Transform (FFT)Designing for Low DistortionSignal AmplitudeGrid CurrentDistortion Reduction by Parameter RestrictionDistortion Reduction by CancellationDC Bias ProblemsIndividual Valve ChoiceCoupling from One Stage to the NextDistortion and Negative FeedbackCarbon Resistors and DistortionNoiseNoise from ResistancesNoise from Amplifying DevicesNoise in DC referencesReferencesRecommended Further Reading