2 ms·
It can be a bad flyback transformer some leads loosen and you get a whine. Power is 60Hz in US and Canada but the whine is much higher than 60Hz. Even a proper
by dghughes 3y ago
It can be a bad flyback transformer some leads loosen and you get a whine. Power is 60Hz in US and Canada but the whine is much higher than 60Hz.
Even a properly working CRT TV had the very high pitch whine. Any kid from the 80s or I guess 90s and back knows of the CRT whine. I recall it so high it's almost like it's in your head as imaginary or you could "taste" it in your 1970s/80s mercury amalgam fillings (maybe that was just me).
You lose that ability of your hearing pretty early in life or early teens (loud music damage?) but it couldn't be more than 20KHz the highest pitch of sounds that humans can hear.