4-Bit Vacuum Tube Full Adder

I just grinded and did most of the schematic for 1 bit. I just have to finish it, duplicate it, then reconnect it to make it 4 bits

I got the idea, then I had to figure out how to do it. I lowkey will have to use a lot of AI in this project (to learn, not to make stuff for me) because there is nothing online to help me learn about how this stuff works. I then spent a lot of time trying to find a schematic. there are none, so I had to make one myself.