Tables of contents (and sometimes abstracts) of technical books related to electron tubes and old radiotechnics. Books presented here are successively transferred from the catalog of books on the FonAr website.

The list of books presented here has the advantage of its search capabilities by using search engine available on the Triode website. This allows a visitor to not only view the contents of the directory, but also generate rankings based on entered keywords

The system used in the alphabetical menu applies to the names of the author or first author of the book. The list of books for the selected letter is automatically sorted alphabetically by title. The sort order can be changed by pointing and clisking the table header (title or author).