6 ms·
The 50Hz and 60Hz is quite noticeable. I'm used to hearing mains hum at 50 Hz, so hearing it at 60 Hz sounds a little different. (You can sometimes hear it in a
by HPsquared 3y ago
The 50Hz and 60Hz is quite noticeable. I'm used to hearing mains hum at 50 Hz, so hearing it at 60 Hz sounds a little different. (You can sometimes hear it in audio recordings etc).
50 Hz is about a G, and 60 Hz is about a B-flat. Video comparison: https://youtu.be/pMtn-loUrg8 https://youtu.be/pMtn-loUrg8
- dvh 3y agoThere was a video recently where YouTuber diodegonewild was fixing old power supply, he turned it on, listened to it and said "the transformer has DC offset on it, because it's humming at 50Hz, the magnetostriction doesn't care about polarity, healthy transformer hums at 100Hz, I think one of the diodes in bridge rectifier is bad" and he was right. https://www.youtube.com/watch?v=bWxS2njU-JI&t=355s https://www.youtube.com/watch?v=bWxS2njU-JI&t=355s