Now let’s be clear, this is not the first time we’ve come across this idea, there was a breadboard ... LTSpice model of a NAND gate implemented with 555 and diodes From there it was a simple ...

NAND and NOR gates, and Minecraft redstone. Conventional wisdom says you can’t build a flip-flop with just one transistor, but here we are. [roelh] has built a flip-flop circuit using only one ...