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Then I would suggest getting a breadboard and starting to build some oscillators, LEDs and phototransistors can be a good way to learn about modulation, small and easy to get something going.
other than that
1, don't let the smoke out
2, be wary of inductors, it is quite easy to accidentally let one discharge back through your circuit and fry everything
I was a big fan of the books, if this game had been made I doubt that I would have made it through school. Would have been a bigger time sink than civ and championship manager combined