HV voltage tester beeping on everything! What a surprise. All of a sudden everything connected to the project would set off a voltage sensing pen that requires 90-1000 volts to activate. I thought the experiment would easily be repeatable so I put it aside for a while to work on something that was currently a topic on the forum. I could not get the same results after coming back to the original setup. On the first setup the effect only worked when I had the scope ground connected. No other ground or earth ground made the effect work. I figured it was the scope that was bad and causing the effect but now I'm not so sure. I have no clue.
John
