Tom Kneitel the grandson of Seymour Kneitel was an avid Radio operator (and even ran a pirate radio station in Manhattan back in the day .. this is from his page on HFUnderground) and wrote several books on electronic projects such as “101 Easy Ham Projects” back in 1968. Tom Kneitel was an editor as well as a contributing author for “Popular Communications” magazine, as well as a contributing author for CB Horizons, S9 and Popular Electronics… More on Tom Kneitel at ARRL, HFUnderground, some of his books are available to read on the internet for free at Open Library