Back before digital control, I built an entire 200 sf model railroad using stupid low voltage RS components.
Their consumer electronics were pretty bais.
Like John, I also did amatuer stuff with Heathkit and Dynaco kits.
A friend of mine did a color TV from Heathkit. I think it was that company because I can't recall any others that made kits like that. He said the cool part was that the instructions told him what the function was of the assemblys were that he was putting together. It wasn't just solder resister #176 into hole # 98 and 101.
Bill