History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1944 06

P.03 - Contents Banner

The Australasian Radio World

Devoted entirely to Technical Radio

and incorporating

All-Wave All-World DX News

Vol. 9 - JUNE, 1944 - No. 1

P.03 - Publication Notes

Proprietor - A. G. HULL

Manager - Dudley L. Walter

Secretary - Miss E. M. Vincent

Short-wave Editor - L. J. Keast

For all correspondence: City Office - 243 Elizabeth St., Sydney - 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 -

Utility Battery-Operated Set . . . . 6

A Long-Range Utility Receiver . . . . 8

Direct-Coupled Utility Design . . . . 10

TECHNICAL -

Details of Victorian Amplifier Contest . . . . 5

Some New Ideas from Modern Circuits . . . . 11

Output Transformer Construction . . . . 13

Adjustable I.F. Selectivity . . . . 16

A.B.C. of Frequency Modulation . . . . 19

U.S. Claims Invention of Radar . . . . 20

Signal Officers in the Making . . . . 21

SHORTWAVE REVIEW -

Notes From My Diary . . . . 23

New Stations . . . . 23

Shortwave Notes and Observations . . . . 24

THE SERVICE PAGES -

Answers . . . . 26

P.03 - Editorial Notes

Editorial

Every now and then a new reader takes me to task for my rough and ready way of sketching out circuit diagrams without paying due attention to indicating suppressor grids, for example. Often enough I leave out the symbol for the heater, and my neglect of such things as iron cores in coils, or using the same condenser symbol for even electrolytics, is becoming almost notorious. I can only plead "guilty" to these crimes, but I would point out to my critics that there are several extenuating circumstances to be considered. I consider that "Australasian Radio World" is not the same as a text book, so there is not so much need to be pedantic. Most of our readers are men with a working knowledge of theory, and most of them are busy, so that they want simple circuits, easy to read at a glance, and with all essential details and values clearly shown but not cluttered up with intricacies. I consider, too, that the placing of capacity and resistance values right at the symbol is far more effective than giving each one a letter and then tabulating values, even if it doesn't look quite so professional. Not that it would make much difference if my style was all wrong, for it is now just as much a part of me as my handwriting and my signature. It would be a most difficult task to change either after all these years. - A. G. HULL.