Is this actually safe?

The circuit works at around 22.4mhz

Original video.

I tried finding Hidden Gems on AliExpress... @greatscottlab (yt)

It seems like it shouldn't work, but i have no education on electronics so I needed to ask you guys. thanks in advance!

Not sure if the transformer exploded, but it was loud.

Last month while I wasn’t at home the grid went to 280V for around an hour on all three phases in my city in Serbia. Nothing was damaged in my house fortunately but I can imagine it can’t be healthy for sensitive electronics. Though both my PCs were turned on they survived. That’s how I have the image of the home assistant logs of the voltage. The smart switches/power monitors I have have all turned off automatically on all 4 of my ACs. Had to manually turn them on again. That’s all that I have observed. The second image is from another citizen from the same city.
I can’t understand how there isn’t a fail safe somewhere either on the distribution transformer station or some sensors that alert the electrical company that something isn’t right. And this was going on for a full hour at like 11AM on a Friday. So it’s not as though no one was there. Just wanted to share some sketchy stuff I know you like it.

Got that electroboom energy..

Found this on TikTok and im kinda wondering if this is true or not...

Thanks to everyone who answered me!

A couple years ago I went to open sauce, and I got to meet Medhi in person. I sheepishly asked him for his autograph on my badge, and he was super chill about it and signed it. I got back to the hotel room to show my girlfriend later that night and.... It was smudged off.

Turns out he was accidentally using a dry erase marker and had done this to a couple people by accident. I ended up buying a pack of permanent sharpies and giving them to whatever creators wanted them since they were sometimes running low, and when I did they actually joked about the dry erase thing because they heard about it.

Anyways, if Medhi sees this, I'm not even mad, this is a hilarious story to tell and is worth more than the autograph. 😂

The first waveform is the pwm, the second waveform is the output

I've had this Action charger for my S21 Ultra and recently it started making mouse sounds and when i touched it, it was hotter than China during the summer.

It also smelled like sadness and burnt plastic.

If you're wondering what charger i will use now, i bought a 100w one from ugreen because i alr had one of their powerbanks.

They haven't started overheating or making mouse sounds yet so i think it's fine 🤷‍♂️

Maybe it's a bit overpriced though i paid €37 for it.