looking for the date of a magazine article

[The Professor]

 I am trying to find the month and year of a diy article in I believe Popular Mechanics magazine. I think it ran a year or more  after a Nov 1972 Popular Science article about making a 10 ft down wind turbine. The PM article was a close copy of the PS one.
I have spent a hour trying to google different search terms, unsuccessfully.
Maybe one of you has that very issue on the end table next to your recliner.
I want to copy  it and add it to add to my digital library. thanks

[MagnetJuice]

I have digital issues of Popular Mechanics. I have all the issues of 1972, 1973 and 1974.

If you can give me a little more details of what you are looking for, including some keywords, I can try to find it.

Ed

[The Professor]

Thanks for the offer to help. The article that I do have is "Wind Generators: Here's an advanced design that you can build" by Hans Meyer, pg 103, Nov 1972, Popular Science. The article that I am looking for is almost a copy of this with slight mechanical differences, and a different propeller construction. I think it was  in Popular Mechanics several years later.
Here is google books free copies of Popular Mechanics from 1900-2000
https://books.google.com/books?id=Vc8DAAAAMBAJ
and Popular Science
https://books.google.com/books?id=ZAEAAAAAMBAJ
  I searched for different combinations of DIY wind generator, turbine,
wind electric, homebuilt. couldnt find it and looked a the contents page for
each issue in 73 and 74.
  And just for fun heres Popular Aviation from 1927 to Flying 2008
https://books.google.com/books/serial/ISSN:00154806?rview=1&lr=&sa=N&start=900

[The Professor]

 I found the issue, Mechanix Illustrated, Feb 1978