Much earnest tube development, around the world was taking place in the time period starting in 1900. In the UK, Fleming was working on the “Edison Effect” light bulb and saw its potential for use in communication. This became the Fleming Diode. At the same time, H. J. Round, working for the Marconi Wireless Telegraph...
This author is going to try and present the information on H. W. McCandless and Paul Wallace and the related documents without comments or speculation. While some information is known regarding McCandless, much of his early work is a mystery due to a fire that destroyed his tubes sales records in the beginning. Tyne quote...