Lot of vintage Popular Electronics experimenters handbooks w/projects

Large lot of 11 1970s and 1980s vintage Electronic Experimenter's Handbook from Popular Electronics magazine. They are full of tons of fun, do-it-yourself electronics projects with lot of photos, illustrations, circuit diagrams and much more!

There are: 1970, 1972 and 1975 - all marked as the Winter Edition. There are also 1977, 1978 and 1979 - We didn't see what edition (if any). There are also included in this lot the Experimenter's Handbooks from 1980, 1981, 1982, 1983 and 1984.

We saw lots of fun projects like shortwave radio antenna tuners, electric train speed control, a signal enhancer for video editing, an audio level meter, a metal detector and many others.

These are all from the estate of an electrical engineer and short-wave radio buff. They have wear and age, as well as some areas of sun fading from storage. the 1977 edition is missing part of the back cover.