Grinding out copper is one way to create a printed circuit board, and low-cost CNC milling machines have improved to the point where it’s possible for many. How milling machines can be used to create ...

Back in 2010, Bob Pease sent me a couple pictures of some prototype printed circuit boards (PCBs) he had made in the early 1960s. Pease got to be a great analog engineer because he would hack away at ...