By W. A. Rheinfelder, R & D Anaconda-Astrodata Co.
In this discussion, distortion will be limited to the effect called "windshield wiper" distortion. Harmonic distortion,
spurious frequencies noise hum and other forms of distortion will not be considered here.
By C. Bailey Neal, Archer S. Taylor, Donald W. Levenson, Orville D, Page, J.D. Cauldwell, P. Knight and E. R. Mertz, John Campbell and Joseph P. Gleason