Heinl radio business letter (Jan-June 1932)

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"Dynamic Symmetry", by A. F. Van Dyck, Radio Corporation of America "Radio Test Methods and Equipment", by W. F. Diehl, RCA Victor Company. Friday. April 8. Afternoon Session: "Modern Radio Equipment for Air Mail and Transport Use", by C. G. Fisk, General Electric Company; "Two Way Radiotelephone Circuits", by S. B. Wright, American Telephone and Telegraph Company; "Sound Collection and Directional Microphones", by H. F. Olson, RCA Photophone Company; "A New Field Strength Meter", by P. B. Taylor, Westinghouse Electric and Manufacturing Company; " Campbell-Shackleton Shielded Ratio Box", by Leo Behr and A. J. Williams, Leeds and Northrup Company. Saturday. April 9, Morning Session: "A New Circuit for the Production of Ultra Short Waves Oscillation", by H. N. Kozanowski, Westinghouse Electric and Manufacturing Company; "A Stand¬ ing Wave Type of High Power Ultra Short Wave Oscillator", by I. E. Mouromtseff and H. V. Noble, Westinghouse Electric and Manufactur¬ ing Company; "Magneto-Static Tubes for Variation of Ultra Short Waves", by G. R. Kilgore, Westinghouse Electric and Manufacturing Company; "Transmission Lines for Short Wave Radio Systems", by E. J. Storba and C. B. Feldman, Bell Telephone Laboratories; "Calculation of Directivity and Mutual Effects in Directive Antenna Systems", by P. S. Carter, RCA Communications; "Design of Resistors for Precise High Frequency Measurements", by Leo Behr and R. E. Tarpley, Leeds and Northrup Company. Saturday. April 9, Afternoon Session; KDKA Symposium "The Saxonburg Station of KDKA" , by R. Li Davis , Westinghouse Electric and Manufacturing Company; "A New Water Cooled Power Vacuum Tube", by I. E. Mouromtseff, Westinghouse Electric and Manufacturing Company; "Application of Transformer Coupled Modula¬ tors for High Power" by J. C. Hutchinson, Westinghouse Electric and Manufacturing Company. In addition to the technical sessions, there will be a number of inspection trips to such places as the Westinghouse Research Laboratories, Carnegie Steel Mill, Springdale Mine and West Penn Power Company plant, Research Laboratories of the Aluminum Company of America, and the transmitting station of KDKA. X X X X X X COMMISSION GRANTS TWO NEW TELEVISION STATIONS Construction permits for two new visual broadcasting stations whose proposed plan of research is expected to result in "substantial contributions to the development of the art of visual broadcasting" were granted last week by decision of the Federal Radio Commission. 3