Buy some kits
and assemble them. Now get them to WORK.
Kits are great at teaching you to solder,
to identify compoennts and
to put things together. They are less good at teaching electronics.
Depends on the kit. The one kit I built included a schematic, a block
diagram, and a reasonably detailed theory-of-operation section.
Of course, that _was_ some 35 years ago.
Eep. I'm getting old. :(
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