1906 · New York, N.Y.
Shiers (History of Telecommunications Technology) calls this paper the "Pioneering paper on the three-element tube." (Shiers 11-016). This paper was quite early in the development of the device - He had applied for a patent on a three element vacuum tube (not the grid version) on October 25, 1906, one day before his presentation to the AIEE. The first public disclosure of the grid type audion wasn't made until March 14, 1907. Davis in his Electrical and Electronic Technologies notes that De Forest ordered the first grid-type audions in November of 1906 from his tube manufacturer H.W. McCandless & Co, the same time period at which this device was being discussed in the 3rd of the articles in this volume.
De Forest won many accolades. The 1922 Medal of Honor from the Institute of Radio Engineers, the 1946 Edison Medal from the AIEE 'For pioneering achievements in radio and for the invention of the grid-controlled vacuum tube with its profound technical and social consequences', and the Edison Medal 'For distinguished contributions to the art of electric communication, notably the regenerative circuit, the superheterodyne and frequency modulation.' (ethw)
In Origins of Cyberspace (#203), Norman and Hook suggest that the Audion was the first successful electronic amplifier.
An early and important work in the development of wireless, radio, and cradle period telecommunications. (Inventory #: 26733)