Thanks! The directional magnetic feedback from the LED/diodes and aether disturbances. Something happens in the background of the high frequency noise in the next video. Mike ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-K8irQqTxu6E.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-yqHNzK5ktj4.html