I've designed, drawn, corroded, and soldered entire soundcards, synthesizer blocks, and various systems with microprocessors, back in the day. All by hand. To

I've designed, drawn, corroded, and soldered entire soundcards, synthesizer blocks, and various systems with microprocessors, back in the day. All by hand. To quote Linus, it's quite "studly" to operate like this, but the result is big and ugly. Fabbed PCBs are much more compact.