CompuServe Messages

Raster rotation due to component aging or shift would require a simultaneous and equal change in both the horizontal and vertical amplifiers: very unlikely, since H is resonant and V is linear. This is assuming that I understood the original symptom as being an overall rotation, and not a vertical trapezoid distortion. Also, a magnetic field near the neck can cause raster rotation. Fields (as from speakers) nearer the face cause localized distortions, though.