There are a ton of beginner kits based around Arduino boards like the Uno. Usually come with breadboards, jumpers, LEDs, sensors, displays, keypads, and other things to plug into it. There are many on Amazon and elsewhere, and lots of YouTube courses.
That’s true, there are, but I haven’t seen anything pre-built and self-contained like this with easy spring terminals and color coded sections.
No, I have seen one that was modular but also missed out on a lot of what made wiring things up interesting. I could maybe see someone making one as a hobby project but I think less as a commercial product when the “real thing” is also so accessible and easy to work with, which wasn’t necessarily the case in the past. They have also gained a lot with the addition of coding to dynamically change behavior in a user-defined way.
Even looking for a crystal radio kit ends up with a lot of results that are throwing some PCB in a case, which is a shame.
https://a.co/d/9J2fStU This seems pretty close, but kinda babyish. It would be cool to see a cross between something like this and the breadboard kits you mentioned.
I got an old Radio Shack Electronics learning lab off of eBay a few years ago. It was the one I wanted as a kid. If you get one make sure it has both workbooks. You’ll also find that you will need to get new capacitors. Most of mine went bad long ago. Price should be between 40-100$
