History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1941 11

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P.01 - Front Cover

The Australasian Radio World

NOVEMBER 15, 1941; Vol. 6 - No. 6; Price, 1/-

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

Cover Photo: Spot-welding the elements of a valve in the Australian factory of Philips.

Highlighted Contents: Circuit Contest: First Essay: Compact 4/5 D.W. Receiver: Inter-Office Communicator: Dual-Wave Six with Vibrator

P.03 - Contents Banner

The Australasian Radio World

Incorporating the

All-Wave All-World DX News

Vol. 6 - NOVEMBER, 1941 - No. 6

P.03 - Contents

CONTENTS:

CONSTRUCTIONAL —

Inter-office Communicator . . . . 5

Dual-wave Vibrator Set . . . . 7

"Nugget" Dual-waver . . . . 11

Handy 12-watt Amplifier . . . . 11

Elementary Signal Tracer . . . . 19

TECHNICAL —

Interesting Experiments with Amplifiers . . . . 21

How to Use Your Oscilloscope . . . . 23

Beat Frequency Oscillator . . . . 26

Answers to Queries . . . . 37

SHORT-WAVE SECTION —

Why They Change the B.B.C. Wavelengths . . . . 20

Notes from My Diary, by L. J. Keast . . . . 28

Loggings of the Month . . . . 30

Battery Circuit Contest Coupon . . . . 37

P.03 - Editorial Notes

Editorial

It is abundantly clear that our Battery Circuit Contest is going to be remarkably successful. It has created considerable interest in many country towns and provided a topic for conversation in most factories, according to reports from our readers. Country dealers appreciate the value of the publicity angle of having their views published and, from our point of view, we don't begrudge them this free advertising, so long as it is all for a good cause. What better cause could you imagine than helping the country man to get better performance from his set? The candid expression of opinions by country men, who are on the spot obtaining practical experience, must be a big factor in assisting in this direction. From our own point of view, we are especially delighted, as we have in hand a stock of editorial matter which should make the next half-dozen issues of infinite interest to all country readers.

P.03 - Publication Notes

The "Australasian Radio World" is published monthly by A. G. Hull. Editorial offices, 117 Reservoir St., Sydney, N.S.W. Telephone MA2455.

Subscription rates: 1/- per copy, 10/6 per year (12 issues) post free to Australia and New Zealand.

Printed by the Bridge Printery, 117 Reservoir St., Sydney, N.S.W., for the proprietor of the "Australasian Radio World," 117 Reservoir St., Sydney (Footnote P.40)