Based upon his 1943 paper Professor Charles F Dalziel extended his Let-go effects analysis to mixed AC and DC waveforms plus various shaped non-sinusoidal waveforms to determine reasonable safe current limits feeling that it could be applied to any waveform. This paper revisits his analysis and extends it to modern non-sinusoidal waveforms to provide a substantiation for application of this analysis to non-sinusoidal touch currents found in modern electronic equipment.