By Charles Hansen
Hansen has covered the history of these mysterious tubes and presents the details of these rugged, highly reliable tubes made for the military for use in guided missles. An interesting story of one company's approach to extremely high quality vacuum tube design. The book includes several appendices including Eric Barbour's 1006 article from Vacuum Tube Valley"Bendix company documents and tube data sheets for many of the company's tubes.
81 pages8 1/2" x 11
