History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1947 11

P.01 - Front Cover

The Australasian Radio World

Registered at the G.P.O., Sydney, for transmission by post as a periodical.

1/-

Vol. 12 - No. 6; NOVEMBER 15, 1947

P.03 - Contents Banner

THE AUSTRALASIAN RADIO WORLD

Devoted entirely to Technical Radio

and incorporating

ALL-WAVE ALL-WORLD DX NEWS

VOL. 12 - NOVEMBER, 1947. - No. 6

P.03 - Publication Notes

Editor, Publisher, Proprietor — A. G. HULL, Balcombe St., Mornington, Vic.

Short-wave Editor — L. J. KEAST, 6 Fitzgerald Road, Ermington, N.S.W. 'Phone: WL1101

Ham Notes By — D. B. KNOCK (VK2NO), 43 Yanko Av., Waverley, N.S.W.

Advertising Representative for Vic. — W. J. LEWIS, 20 Queen St., Melbourne, 'Phone MU5154

Advertising Representative for N.S.W. - Amalgamated Publications Pty. Ltd., 83 Pitt St., Sydney, Phone: B1077

Subscription Rates: 6 issues - 5/3; 12 issues - 10/6; 24 issues - £1; Post free to any address in the world.

Address for all correspondence - Australasian Radio World, Balcombe St., Mornington, Victoria

Printed by Bridge Printery Pty. Ltd., 117 Reservoir Street, Sydney, N.S.W., for the proprietor of the "Australasian Radio World," Balcombe St., Mornington, Vic. (Footnote P.52)

P.03 - Contents

CONTENTS

CONSTRUCTIONAL —

"Sally" . . . . 5

TECHNICAL —

A Record on Six Metres . . . . 9

Signal Tracer . . . . 11

High-Fidelity Transformers . . . . 17

Highlights of Radiolympia . . . . 19

A New Method of Tuning . . . . 23

"Transmitter, FS6 Plus" . . . . 29

Among Our Readers . . . . 33

Calling CQ . . . . 41

SHORTWAVE REVIEW —

Notes From My Diary . . . . 46

THE SERVICE PAGES —

Answers . . . . 50

P.03 - Editorial

EDITORIAL

Like most new things, the advent of the "personal" set, a baby version of a self-contained battery-operated portable, brings along its crop of worries. Whilst waiting at a radio counter in town recently the customer ahead of me was trying to dispose of one of these sets. He told the man at the counter that he had only bought it a month ago, but already it had used up three sets of batteries. Having a few moments to spare, I suggested that we check the current drain, borrowed a meter and did so. The drain was still a shade over 12 milliamps, although the batteries were both down fairly low. This is a fairly normal drain for sets of the type and with it a 467 type battery will last about 15 hours. The running cost works out at well over a shilling per hour. Unless buyers are acquainted with the true position about running costs these portables are likely to earn a smelly reputation, thereby spoiling what would be a further wide application of radio if handled properly. Public reaction to the price of the minimax batteries is also easy to understand. They know that a small torch battery costs 8d. or 9d. The minimax is two or three times as big and as heavy. It is expected that the price will be, likewise, two or three times as much. Unless the running costs of personal portables can be greatly reduced, they are going to go down in history as one of the worst flops in the radio business. A. G. HULL.