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Guys, if you want, subscribe to my Instagram, where I post spoilers for new videos on the channel, and a lot of interesting things that I develop / happy_proger For those who are interested in what kind of microscope and power supply: Microscope http://ali.pub/qaj3l Power supply with current and voltage stabilization http://ali.pub/cl3qk In this video, I will tell you how to increase or decrease the charging voltage of a laptop.