History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1943 11

3 P.03 - Contents Banner The Australasian Radio World Devoted entirely to Technical Radio and incorporating All-Wave All-World DX News Vol. 8 - NOVEMBER, 1943 - No. 6 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 - Receiver to Operate from 32-Volts . . . . 7 TECHNICAL - Servicemen get Radio Parts Priority . . . . 5 Future Applications of Frequency Modulation . . . . 9 Design of Screening for Receivers . . . . 11 Are Multiple Valves a Good Proposition? . . . . 13 The Limits to Audio Amplification . . . . 15 The Construction and Amplification of Pick-ups . . . . 16 Speaker Location for High-Power Amplifiers . . . . 18 Common Errors of Radio Testing . . . . 19 SHORTWAVE SECTION - Shortwave Review . . . . 20 Notes and Observations . . . . 21 New Stations . . . . 22 THE SERVICE PAGES - Answers . . . . 26 P.03 - Editorial Notes Editorial In this issue will be found the full details of the parts priority plan for radio servicemen. It is bound to be of vital interest to all our readers. Not actually covered in our issue, but already well publicised in the daily press, is the order controlling the sale of radio receivers. At the moment of writing, Dame Rumour has it that parts are to be frozen, too, and only released to servicemen. This is logical, so we won't be at all surprised if it has become a fact by the time these lines appear in print. There appear to be two trains of thought on the above moves. One is that control is inevitable; the other, a pious hope that the efficiency factor of the administration will be such that a better result will be achieved than could be obtained if the manpower hours of the organisation involved were applied to the production of materials and components. When the history of this period is being written, there is a chance that it will not appear as efficient as desirable, especially if account can be taken of the manpower hours wasted in wangling, hunting for black markets, waiting in queues, and so on. However, be that as it may, it is the clear duty of everyone to do their utmost to accept regulations as they come, abide by them as far as practical, and do everything possible to discourage the corruption of morals and principles which seem to be the unfortunate wake of Regulations. - A. G. HULL. P.05 - Technical - Servicemen get Radio Parts Priority P.07 - Constructional - Receiver to Operate from 32-Volts P.09 - Technical - Future Applications of Frequency Modulation P.11 - Technical - Design of Screening for Receivers P.13 - Technical - Are Multiple Valves a Good Proposition? P.15 - Technical - The Limits to Audio Amplification P.16 - Technical - The Construction and Amplification of Pick-ups P.18 - Technical - Speaker Location for High-Power Amplifiers P.19 - Technical - Common Errors of Radio Testing 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