I’m curious, how many people are aware of these sounds. I have designed, etched, and built my own switching power supplies along with winding my own transformers. I am aware of the source of the noise. So, does anyone else hear these high frequency sounds regularly?
Hope you can recover!
Had suffered sound damage prior, my ENT doctor said I was super lucky to not cross the line after which it would get irreversible.
Currently having no ear sounds above normal.