Also DO NOT use youtube videos for anything but entertainment: best bike-crashes, kitten videos, but NOTHING educational, so many incorrect and fake stuff there.
https://boingboing.net/2022/05/04/fa...denounced.html
Link to original page on YouTube.
Or this one showing you how to destroy your phone's SIM card
Link to original page on YouTube.
DC TIG welding aluminium still isn't that great. I think aluminium brazing is best if you don't have AC TIG unit. This is one of few Youtube channels that's trustworthy.
Link to original page on YouTube.
Other alternative to AC TIG for aluminium is laser welder.