@nprofile1q... "The most important memory for me with those is building a metal detector and then realising that I could hear radio on its sensor output when I held the detector write close to the radiator. It was the US military's station in AM,"
Damn, the exact same thing happened to me. Sure about US military station, though? For me it was "Voice of America" which was/is in English and US government, but is not military.