I LOVED his articles in Popular Electronics in the late 70’s. Some really interesting ideas, and the hand drawn visuals were wonderful. To me they are as good as Roger Hayward’s classic drawings in “The Amateur Scientist” in Scientific American. Different, but both did a great job conveying complex technical designs.
My favorite Mims article was probably his solid-state oscilloscope from April 1979. Amazing, and very much ahead of its time.
The full article is available online as part of a nice repository of Popular Electronics issues:
https://worldradiohistory.com/Archive-Poptronics/70s/1979/Poptronics-1979-04.pdf#page=85
