‎"CARSON, JOHN, R.‎
‎Selective Circuits and Static Interference. - [ONE OF THE EARLIEST DISCUSSIONS OF WAVEGUIDES AND TRANSMISSION LINES]‎

‎New York, American Telephone and Telegraph Company, 1925. Lex8vo. Volume IV, April, No. 2, 1925 of ""The Bell System Technical Journal"". In the original printed blue wrappers. Tear to upper part of spine. A bit of minor browning to extremities. Internally fine and clean. Pp. 265-279. [Entire issue: Pp. (2), 187-348].‎

Reference : 43342

‎First publication of Carson's influential article on the need of a correct understanding of the behavior of selective circuits when subjected to irregular and random interference. Carson was one of the most prolific inventors of the radio era and was a noted transmission theorist for early communications systems.The is one of the very earliest discussions of waveguides and transmission lines.‎