The whole directory it's amazing too:
gopher://tilde.pink/1/~bencollver/links/
Also, there's Usenet. Subscribe to to sci.electronics.repair and sci.electronics. Outdated? Delayed answers? ok, but you will get correct ones and if you set your learning at a slower but dedicated pace, with no distractions (turn the notifications off), with either PDF or Physical books and a electronic simulator like TkGate, you will get the theory at really fast speeds.
gopher://tilde.pink/1/~bencollver/ia/details/neetsmodules_202003
The whole directory it's amazing too: gopher://tilde.pink/1/~bencollver/links/
Also, there's Usenet. Subscribe to to sci.electronics.repair and sci.electronics. Outdated? Delayed answers? ok, but you will get correct ones and if you set your learning at a slower but dedicated pace, with no distractions (turn the notifications off), with either PDF or Physical books and a electronic simulator like TkGate, you will get the theory at really fast speeds.