All, My 7 year old has been talking about building "machines" for a while now, but recently he has been discussing electrical circuits, even watching some youtube videos about them. I would like to get him a kit or something to work with. I still have my breadboards, leds, ICs, caps, resistors, etc. from years ago, but the textbooks and lab manuals are long gone. Also, my explanations and instructions often include too much information at times resulting in a 30 minute tangent into some theory. Can anyone recommend a beginner set or something? I am also in need of a power supply. I have PSUs from computers lying around I thought about repurposing, and I have a variable wall wart adapter I could use (but it is currently on my pedalboard, small sacrifice). Since this forum is replete with fathers, electricians, engineers and hobbyists, I figured it was as good a source as any.