Please contact the contributing institution for more information regarding the copyright status of this object.
Biographical clippings and articles on Major Edwin H. Armstrong, inventor of the "feed-back" radio circuit that enabled a local battery to contribute energy for the amplification of a signal received at a wireless station. Includes: -- news photo of Armstrong and his wife on honeymoon, sitting on a beach with his portable "six bulb suitcase set" radio. -- photocopy of "Systeme de Reception Antiparasites Applicable Particulierement a la Reception Des Ondes Entretenues (L. Levy) dated 21 October 1918, and a translation from French to English. -- Armstrong's article, "Evolution of Frequency Modulation," Electrical Engineering, December 1940. (Filed under "Armstrong")
Electronics (LCSH) Electric circuits (LCSH) Radio broadcasting--History (LCSH) Radio--History (LCSH) Portable radios--United States--History (LCSH) Radio--Receivers and reception--Heterodyne reception (LCSH) Telegraph, Wireless (LCSH) Radiotelephone (LCSH) Armstrong, Edwin H. (Edwin Howard)