In my second job out of college, I worked for a very small electronics company whose business plan was to see what the Government wanted and we'd bid on it. It was mostly small items, mostly related to what the company owner used to work with in his former job, which was telemetry recording. He hired me because I knew tape recorders (this was 1967 or so) and one of the products we made was a wow and flutter meter. Another was an analog delay with a rotating magnetic drum and tape head.
Part of my job there, in addition to design and test, was to make PC layout drawings and prototype boards. I got pretty good with tape on mylar, and etched boards in the office bathroom.
I don't do that sort of work any more. In fact, I encouraged the owner to hire a real drafstman to do the layouts, as they were getting more complicated and I didn't have the patience, and when he told me how good of a job I was doing, I started looking around and went to work for the Government for the next 35 years. I was still doing some design work and prototyping (until I wanted to get paid more) but everything I designed and built was one-off so no compelling reason for using real circuit boards. This was for the Navy Oceanographic Office, and a lot of the stuff we made sank and was never retrieved anyway.