I had one of the much smaller ones from Tandy (which was the European name for radio shack). I especially loved the flipflop circuit. And the meow thing for th

I had one of the much smaller ones from Tandy (which was the European name for radio shack). I especially loved the flipflop circuit. And the meow thing for the piezo speaker. Really cool. Edit: I think it was this one, the 30 in one: https://www.picclickimg.com/auIAAOSwNPhhbIBS/Vintage-Science-Fair-30-In-1-Electronic-Kit.webp https://www.picclickimg.com/auIAAOSwNPhhbIBS/Vintage-Science... I never liked the spring thingies to affix the wires though. It was messy.