In this particular case I have an old tube tv giving off a high pitched squeal
Sent from my Galaxy S3
And I guess if I want to be a lighting tech I will probably have to learn this stuff at some point?
The flyback transformers in CRT's output voltages on the order of thousands of volts. Be careful with those things as well!!! You'll know it when you see it if you ever take apart something with a picture tube -- it is the component that has a single lead attaching to the side of the tube with what looks like a suction cup (but isn't). Yeah, be careful with that thing! I (thankfully) don't speak from personal experience, but I know several people who do.
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