Search The Technical Bookshelf Collection
Enter one or more keywords to search for in the search box Select the years or decades you want to search in. If searching by years, uncheck "All" If 'all' is checked results include all issues Select how many results to show on each page '*' and '?'  may be used"K?I" gets KFI, KOI, etc. "K*I" gets KFI, KFDI, KFYI, etc.. Enclose expressions in double quotes "WXYZ" for exact matches




 
Select "Relevance" for word match or "Date" to select sort type. Click Date again to toggle ▲ or ▼ date order
Do not link to search pages for Wikipedia citations. These pages are not static and change often.
On the list of search results the Issue Date "1951-01-17-BC-OCR-Page-0012" is the link to an issue containing your search terms in YYYY-MM-DD and page order. Click on any link to view the actual page. Once you select an issue, you will quickly see the image of  just the single page where your search term appears.  If you want more context, view the entire issue from the issue listing page. 
The text you see in the search results may be inaccurate or garbled as Optical Character Recognition on old documents is not perfect, so try different keywords if you don't get the desired results. The text will be clearer in the full page view of the selected reference. The file linked to each search result is a fast-loading single page PDF and will be an image of the original where the search reference occurs. You will see a clear page just as published when you select any of the results. There are now 310,000 indexed pages so enjoy your exploring of radio's history!
You may view entire issues by selecting the title you wish to view at the home page of this site.
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