
Edit: The Naval Electricity and Electronics Training Series (NEETS) [2] is good as well.
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 Outdated?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.
Navy Electricity and Electronics Training Series: Module 13—Introduction to Number Systems and Logic
http://www.tscm.com/NEETS-v13-Logic.pdf
Boolean logic, or Boolean algebra as it is called today, was developed by an English mathematician, George Boole, in the 19th century. He based his concepts on the assumption that most quantities have two possible conditions TRUE and FALSE... Boolean algebra is used primarily by design engineers.
I became fascinated with it. Most of my buddies went to the nuclear industry when they got out but I got out as soon as I could and went into computers.
Fun fact: Boole's youngest of five daughters Ethel [2] married Wilfrid Voynich, who acquired the Voynich Manuscript in Italy in 1912 [1].
[1] The Voynich Manuscript is one of the world’s most mysterious books written in code. The manuscript gets its name from Wilfred Michail Voynich (1865-1930), George Boole’s son-in-law. Several attempts by world class codebreakers (including Alan Turing) have failed to definitively unravel its meanings.
https://georgeboole.com/news/the-mysterious-voynich-manuscri...
[2] Ethel Lilian (1864–1960), who married the Polish scientist and revolutionary Wilfrid Michael Voynich and was the author of the novel The Gadfly. https://en.wikipedia.org/wiki/Ethel_Voynich