History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1943 12

3 P.03 - Contents Banner The Australasian Radio World Devoted entirely to Technical Radio and incorporating All-Wave All-World DX News Vol. 8. - DECEMBER, 1943 - No. 7. P.03 - Publication Notes Proprietor - A. G. HULL Technical Editor - J. W. Straede, B.Sc. Short-wave Editor - L. J. Keast Manager - Dudley L. Walter Secretary - Miss E. M. Vincent City Office - 243 Elizabeth St., Sydney - For all correspondence: Phone MA2325 Office Hours - Week-days: 10 a.m. - 5 p.m., Saturdays: 10 a.m. - 12 noon Editorial Office - 117 Reservoir Street, Sydney Subscription Rates - 6 issues 5/3, 12 issues 10/6, 24 issues £1, Post free to any address Service Departments - Back Numbers, 1/- ea., post free; Reply-by-mail Queries, 1/- each Printed by Bridge Printery Pty. Ltd., 117 Reservoir Street, Sydney, N.S.W., for the proprietor of the "Australasian Radio World," 117 Reservoir St., Sydney (Footnote P.28) P.03 - Contents CONTENTS: CONSTRUCTIONAL - Five-Way Tone Controls . . . . 9 New Design for Folded Horn . . . . 15 TECHNICAL - Electronics in Industry . . . . 5 Operation of Output Valves . . . . 11 Guide to Back Numbers . . . . 13 High Efficiency Aerial for Shortwaves . . . . 17 Speaker Location for High-Powered Amplifiers . . . . 18 SHORTWAVE SECTION - Shortwave Review . . . . 20 Notes and Observations . . . . 21 New Stations . . . . 22 THE SERVICE PAGES - Answers . . . . 26 P.03 - Editorial Notes Editorial In a recent issue we reprinted some remarks about a court-case in America, dealing with radio patents and more particularly, the part which Marconi played in the invention of radio communication. This article aroused considerable comment, especially from those who are loyal supporters of Marconi. It has been pointed out often enough that wireless waves, as such, were first known as hertzian waves, after Hertz, German scientist who holds credit for their discovery. A correspondent has pointed out, however, that in December, 1889, an engineer, named Huber, wrote to Hertz and suggested the use of his oscillations for communications, but Hertz turned down the idea! Another correspondent points out that the preliminary experiments in the use of hertzian waves for communications were carried out by a Russian named Popov, who demonstrated reception before the Russian Physical-Chemical Society on May 7, 1895. This demonstration was not the mere starting of Popov's experiments, either, as he had lectured on the subject at the Marine Officers' Club in Kronstadt in the spring of 1889. Dealing with the recent interpretation by the Supreme Court in U.S.A., it is still far from clear that the court ruling did anything which could be defined as a contradiction of the generally-held view that Marconi was the father of radio communication. There seems little doubt that Marconi and his organisations reaped the honour, glory and financial reward to which they were rightly entitled. P.05 - Technical - Electronics in Industry P.09 - Constructional - Five-Way Tone Controls P.11 - Technical - Operation of Output Valves P.13 - Technical - Guide to Back Numbers P.15 - Constructional - New Design for Folded Horn P.17 - Technical - High Efficiency Aerial for Shortwaves P.18 - Technical - Speaker Location for High-Powered Amplifiers P.20 - Shortwave Section - Shortwave Review P.21 - Shortwave Section - Notes and Observations P.22 - Shortwave Section - New Stations P.26 - The Service Pages - Answers