Learn More
  • R T Langley
  • Proceedings of the Institute of Radio Engineers
  • 1936
Basic radio industry figures for 1935 are given and are compared with 1934 and earlier years. Increases in average price, total units sold, and total retail dollar volume to date are noted, and(More)
  • R T Langley
  • Proceedings of the Institute of Radio Engineers
A review of the literature on selectivity including the important recent contributions shows the necessity for coördination of the results and clarification of the definitions. The present(More)
  • 1