@tubetime Yeah, the only circuits I've ever seen that look like that are Seymour's. (If it's from a CDC-6600, the transistors should all be CDC-nnn named, because he had to special order them because he wanted silicon instead of germanium.)

Tube🍂Time, but that's the only way they could pack components as densely at the time, isn't it?

@tubetime the symmetry of the components and placement though. This was designed and assembled with passion.

@tubetime
Does that mean if a part dies in the middle of the board, you have to desolder 63746875 components to replace the part?