History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1942 02

3 P.03 - Contents Banner The Australasian Radio World Devoted entirely to Technical Radio and incorporating the All-Wave All-World DX News Vol. 6 - FEBRUARY, 1942 - No. 9 P.03 - Publication Notes Proprietor, Publisher, Editor - A. G. HULL Editorial Offices - 117 Reservoir Street, Sydney, Phone MA2455 Office Hours - Week-days: 9 a.m. - 5 p.m. Not open Saturday morning Subscription Rates - 6 issues 5/3, 12 issues 10/6, 24 issues £1, Post free to any address Service Departments - Back Numbers, 6d. ea., post free; Reply-by-mail Queries, 1/- each; Laboratory Service, 2/6 per set 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.32) P.03 - Contents CONTENTS: CONSTRUCTIONAL - Tried and Tested One-valver . . . . 5 Detector Unit for Amplifiers . . . . 17 Re-building Radio Batteries . . . . 19 Alternative Bias Amplifier . . . . 21 TECHNICAL - Victorian Champion Amplifier . . . . 9 Two Effective Battery Circuits . . . . 11 Baffling the Loud-speaker . . . . 14 Crystals for Frequency Control . . . . 16 The Reduction of Harmonic Distortion . . . . 22 SHORT-WAVE SECTION - Short-wave Review . . . . 24 Tokyo's Broadcast Propaganda . . . . 25 The Month's Loggings . . . . 26 New Stations . . . . 26 Latest Loggings . . . . 28 THE SERVICE PAGE - Wanted - Old Transmitting Valves . . . . 18 Answers to Queries . . . . 30 P.03 - Editorial Notes Editorial Owing to difficult trading conditions - most radio lines being easier to sell than to buy - there is a falling off in advertising, thus allowing more space to be devoted to reading matter. Scarcity of paper, however, tends to offset this gain, and so we find ourselves this month with an issue which contains only a small number of pages, a few scattered advertisements, but a full complement of technical matter which will give some idea of the way in which "Australasian Radio World" will face up to changed conditions. Space being so much at a premium, we are unable to go over the fundamentals thoroughly in each issue, but we do keep a stock of back numbers so that these may be referred to for such matters. We find that these back numbers are in keen demand, and the success of our recent special offer of a set of a dozen for 5/- prompts us to make another special offer. This time we are prepared to supply, post free, a complete set of the 1941 issues to every reader taking out a subscription for 1942. Only a limited number of sets are available and so an early application is essential. P.05 - Constructional - Tried and Tested One-valver P.09 - Technical - Victorian Champion Amplifier P.11 - Technical - Two Effective Battery Circuits P.14 - Technical - Baffling the Loud-speaker P.16 - Technical - Crystals for Frequency Control P.17 - Constructional - Detector Unit for Amplifiers P.18 - The Service Page - Wanted - Old Transmitting Valves P.19 - Constructional - Re-building Radio Batteries P.21 - Constructional - Alternative Bias Amplifier P.22 - Technical - The Reduction of Harmonic Distortion P.24 - Short-wave Section - Short-wave Review P.25 - Short-wave Section - Tokyo's Broadcast Propaganda P.26 - Short-wave Section - The Month's Loggings P.26 - Short-wave Section - New Stations P.28 - Short-wave Section - Latest Loggings P.30 - The Service Page - Answers to Queries