I remember a similar effect. Many years ago, when I was a student, in my room I had a TV set with a simple loop antenna. 2 meters away from the antenna was the radiator of the central heating of that house. On seams of the elements of that radiator the paint had come off. Below the paint the metal was slightly oxidized with a black colour.
When I took a scewdriver and rubbed the metal blade along that seam the TV picture would become distorted with some black lines. I always wondered why, and in fact still do. Rene Charton --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
