1931-12-31 — Page 2

.ו

Page

HONG KONG DAILY PRESS, THURSDAY, DECEMBER 31, 1931.

RADIO

EVERYTHING.E.C.) ELECTRICAL

your guarnutes

GECOPHONE

ALL-ELECTRIC RADIO

SETS

and

RADIO GRAMOPHONES "SPEAK FOR THEMSELVES.

DEMONSTRATIONS DAILY from 11.00 am.

All apparatus to the value of £5 or over can be supplied on hire purchase terms.

Free service for 3 months

G.E.C. SHOWROOM Queen's Building, Chater Road, Hong Kong

sram Osram

Valves

PURITY OF TONE

THE

SINCERE

CO.,

LIMITED.

FEATURES

MYSTERY OF THE ATOM.

LORD RUTHERFORD'S NEW X-RAY DISCOVERY.

An X-ray discovery of far-reach- ing importange was announced by Lord Rutherford recently, when he opened the British Institute of Radiology Exhibition at Central Hall, Westminster.

Lord Rutherford said that scientiae problem which had defled solution for years had just been solved at Cambridge.

The question of the origin of the Gamma rays had been a most dif- cult problém.

**I and my workers in Cambridge have been much interested in this problem," he added. "In the last year-in fact, in the last few weeks --a concentrated attack on the sub. ject has been made in my labora- tories.

The Gamma Rays.

I now secris clear that the Gamman rays arise from the Alpha particles in the nucleus of the ntom, and have, nothing to do with

tae electron.,

This "discovery will throw light on the nuglens itself, and is a re- Emalt of great interest and import:

ance,"

[The Gamma rays are high-fre. quency X-rays.]

Chronicle:

ULTRA SHORT WAVE EMPIRE

WIRELESS:

of

IMPORTANT DEMONSTRA- TION BY MARCONI,

TWENTY FIVE MILES ON FIFTY CENTIMETRES.

IMRORTANT DEVELOP- "MENTS IN NEAR FUTURE

poor quality. Additional stations can be brought in with hair-line may be secured by taning right up tuning and no undue employment of BROADCASTING to the oscillation point, but apart the reactive principle....

from the risk of wasing oillation It must be remembered that the by turning a fraction 100 far-there-loading radio wufacturers-test- is the danger of depreciating their sets to exhaustion point. Bc. quality in reception.

tween 13 and 20 different classes of tests are administered, from the smallest twist of flex to the clac- trien wave-teste wheatbed room.

Sets can now get a fine range of stations without any fear of oscilla. Modern acts are so fully cont; tion so long as it is carefully tuned- structed that expessive reaction is in In such tuning women are toinily unnecessary; ample stations better than men,

(REUTER AND BRITÍJA WIRELE85, ]

LONON, Dec. 29. In the presence of representatives Important developments planned

the Italian Government, an for the near future, like the Em official demonstration took place on pirowide

programme which will November 20 in Italy between materialise within a year, are Santa Margherita Ligure and Le-stated to have influenced the Gov. yanto a distance of 25 miles-of ernment's decision in connection the new Marconi quasi-optical, with the appointment of the Gov- ultra-short wave radio-telephone system. The wave length used was påly 50 centimetres (the same as that employed in the previous de monstration recently carried out be tween Santa Margherita Ligure and Sestri Levante over à distance of 11 miles), corresponding to the en- ormous frequency of sixty million eyeles per second.

<1

The success of the demonstration

Mester distance, Marconi's Early Experiments" with Ultra-Short Waves,

ernors of the British Broadcasting Corporation, in, consequence of the expiration of the present Board's five-year tenure of office.

Lord Gainford has been ronp- pointed Vice-Chairman for a period of five years. Viscountess Snowdon and Dr. Montague Rendall have bees reappointed Governors for a period of one year.

←

Excessive renetion will coarsen the quality generally by squeezing the treble notes and roughening the

ny.

Testa for Sets,"

HAVE YOU HEARD THESE?

Here are lets of long-wave and short-wave` stations which should be picked up by 'anyone in Hong Kong who has a mode- rately good, soț suitable for re- solving such signals. Success in picking up thesą stations also dopando very largely upon lay- enrable, atmospheric conditions..

· Readers are invited to add to this list should they succeed in picking up any station not in. cindad in either of these lists:

The King has also approved the was nil the more complete because, appointment of the well-known although the range had been in commercial and financial expert, to be a treased from 11 to 25 miles, the My Harold G. Brown margin in the signal strength was Governor for five years. Mr. Brown" such as clearly to indicate to all pre- takva the place vacated by Sir sent that the apparatus used was ¦ Gordon Nairne, who has resigned. capable of covering a considerably The New Transmitters.

The news Empire broadcasting station which the Broadcasting Corporation is erecting at Daven- Dr. J. H. T. Roberts, consulting In an interview granted inmedi-try will comprise two transmitters, scientist and formerly engaged on Eately after the demonstration to reach capable of working on a nuMI-, research work with Lord Ruther-presentatives of the Press, His Ex-er of wave length so that the ford in the Cavendish Laboratory, celleney the Marchese Marconi maderious parts of the Empire will Cambridge, said, to the Ners the following interesting statement:

be rouched at the times suitable for local reception.. Rines 1950, when I was already This is the first I have heard experimenting with wavelengths of of Lord Rutherford's discovery-20 centimetres, I had no doubt in From what I gather from the pre-ry mind but that the short waves, liminary statcirent, I should say it which "are called quasi-optical be- would have A very fundamental cause they behave very much like effect on aur notions of the won the waves of visible light, would one stitution of the acom

day come into use for commercial It has always been supposed complications. The results of that Gamma rays consist of pulses those very early tests were confirm in the ether set up by suddened by the more recent experiments An interesting experiment in text- changes of mation or stoppages of

I carried out at Leghorn during the ing the suitability for broadcasting 18.4 electrons. It now appears that world-way using a wavelength of 50 purposes of ultra short waves will Lord Rutherford has shown that timetres. However, upbody, my shortly be made in conjunction the rays come from the centre ofeiringladed, had then succeeded in with Marconi's Corporation en- the atom around which electrons producing ultra short wave apparn-gineers and a special transmitter tus sufficiently powerful, economi- using waves in a 6.5 10.8 metres ealand reliable to justify its imme-wave band is being installed at diate use for Public Telephone or

Broadcasting House, the huge new Telegraph Services over suitable beadquarters, to which the Corpo- ration's activities are gradully be- ing transferred from Savoy Hill.

move.

WHAT ELECTRICAL

ENERGY IS

distances.

Sir James Jeans, in an address to To Be Used For Public Talophone the Institute, ondeavoured to an-

Services in Italy. swer the question, "What is Radia-

"During the last six months, my tion ?**

Assistants, particularly Mr. G A. He said: Radiation is made of Mathieu, and myself have been can.

THE LARGEST RADIO DEALERS|| buffets of electrical energy, burthing centrating our efforts towards a

IN HONGKONG & S. CHINA

SOLE

AGENTS,

AND DISTRIBUTORS,

FOR

PILOT RADIO & TUBE

CORPORATION

LAWRENCE, MASS., U.S.A.

THE LARGEST

RADIO

PLANT IN THE WORLD

time.

Past Year's Work."

STATION

Wave length

in

M

copper-

LONG-WAVE STATIONS.

Call Kilo-

(Matres) Station

Sign ayola KZIB. 1,189

K.S.M.S. 1,083 J.O.A.K. 870

230 Manila 277 Shangbai 343 Tokyo 363 Hiroshima J.O.F.K. 860 355 Hong Kong Z.B. W. ·840. 357:1 Bombay

840 381, Sapporo

300 Keijo 370 Nagoya 370.4 Calcutta

V.U.B. J.O.LK 8:20

J.O.D.E. 890

3.0.0.X.. 810 V... '800.b

380 Kumamoto J.O.G.K.

390 Sondsi

305 Dairen

100. Ozaka

410 Canton 180" Manila

SHORT WAVE STATIONS.

CALZ SIGN

OTCLKS

790

J.O.E.X, 770 JQ.A.K. 760

J.0.3.K. 760 C.ML.B. 739 K.Z.R.M. 025

TIME (BONG KONG)

OF WORKING

4,484 Mon... Wad. &'Fri., p.m. &.2. **, 4,920 6-10 p.m.

5,291 Not regular

6,000 Tue, Thurs., Sat, 8 pu..

6,890 Sunday midnight

7,162 Daily 8.30 p.m. & 11 p.

7,810 Not regular

7,780 Daily Up.m.

8,108 Tues. & Fri., .pa- ..

0,237 Not regalar

2,603 Not regular

W.3.X.A.F. 6,630 Daily 7 ...

PJ...

·H.S.L.P.J.

8,620 Ft 3o., Sat. I am. & 10a.m.

9.690 Not regular

0.077 Midnight daily

10,328 Not regalar

11,020 Midnight-3 m. daily

11,7617.80 p.m. & 1 mm, daily, except

Satu day and Sunday

:

12,240 Nightly

12,850m, Wed., Fri, Sat.! 18,102 Daily 6.30p.m. io midnight.

13,304 Daily 7 pm.

17,280 Daily 8 pas, to midnight

17.761 Sundays 7 pm & midnight

18,404 Ench afternoon,

10,220 Daily 0-7 p..

10,851 Daily 3.

21,54) Not regular

87.86 Dabiste (Germany)

A.F.K. 00:12 Khabarovak (Buenia) | BA.97. 58.7 Nationw 50. Мовсо

LG.J.

B.F.N.

48,5

Home Porth

1.M.A.

6.A.G.

It is expected that the station will be available for in A Your's

47.8

Singaporo

7.8.1.A.B.

35.8 Kootwijk (Holland);

P.C.L

C

67.

Bangkok (Stam

H.S.AP.J

88.4

Sydney

2.B.L.

81.86 Melbourne

S.LO.

81.48 Schenectady

81.30 Eindhoven (Holland) 31.28 Sydney 81.

P.C.J.

2.F.C.

Nairobi (Kenya)·

7.1.0.

28.5" 27.8

Sydney

2.M.M

j

Bandoung

P.LR

Chelmsford (England)] 5.8.W.

24.5

Manila

K.1.X.R.

28.85

Sobonectady

W.z.X.O.

18.88

Brodoong

P.L.G.

Kootwijk (Holland)

P.C.L

17.4

Bandoeng

ง

10,9

Bangkok

183

Koodwijk (Holland)

16.74 15,0

Bandoong

P.C.K P.L. E.

Nancy (France)

13.98 Pittsburg

W.8.X.X.

In a roview of the past year's work, the B.B.C. mention that their stations transmitted for nearly 69,000 hours and the percentage of 38.5 breakdown time was only .03.

TINKERING WITH

THE RADIO SPOILS LISTENING FOR OTHERS.

through empty space. They are commercial solution of the problem

Womea make the best radio spiring round as if fired from a and many unexpected and valuable stead of taken with the set, and Esteners, because they listán in- rifle, but are also capable of wave-discoveries have been made. Ibecause their light tonen enables like motions."

would, therefore, ask you not to con- them to tune the set better, These bullet-like particles Sirsilar this demenstration as a mere est finely, being coatent to accept Men tane in more hurriedly and James termed "photone."

scientific experiment,, but as a tost the programme

40 soon as they When we pay our electric light of a new practical and commercial bring it in. bills," he said, "we are in effect radio-system which will very short that extra touch walen trims off Women give the turning knob just" buying photons. The electric lightly be used for public services in Earsh and scratchy tones and, company may tell us we are paying Italy. Owing to its simplicity the secures the bread, warm tones that td. a unit for our energy.

What they really mean is that price and in running costs: it will

new system is very moderate in complete tuning affords.

Women, too, cause the least owvil we are paying, 217,000,000 an ounce thus soon afford to the inhabitants Intion. Their light touch enabier for our photons.

of many small islande scattered in its finest point one fanction past them to trist. the reaction dial to the Mediterranean a reliable teles that and neighbours know all about

No Charge.

"Yet, the sun is distributing phone service which they could not, it. photons free of change throughout heretofore, enjoy in consequence of space at the rate of over 4,000,000 the high cout of the submarine cable tons a second. This gives us some

telephone installation."** idea of the amazing prodigality and generosity of nature as compared with similar qualities in the electric light companies) (Laughter.)

Requested to state whether it was correct that the application of this 'quasi-optical" wave' was strictly limited to very short distance com

#

Perfect tuning results in Twinging in stations at satisfactory strength and Clarity with a minimum of re action. The ether-searching fiend who wants stations at any price nows that by twirling the reaction dial until it reachen à point when another traction of a turn would caise the jet to osolllate will in- crease sensitivity, so that stations

That, surely, is not the apex of rulia enjoyment; there is soine? thing better than that.

Marconi If we could learn the secret of municationa, Marchese

added: Well, at the present pour. In. annilitating alter Sir James : added, "we could turn an ounce of stage of our knowledge, I do not base-patter of any kind into an anticipate a reliable range of more ounce, of photons, and we should than about 100 miles; but this is of bave query of which the present coureen very useful range in itself vajuo ir ebout £17,000,000.

and could, of course, be very great- Quality is better than range. It bely increased by making uso of relays in more andisfactory to

get 20 or repeaters wherover possible!!! "stations at high quality than 20: at

Doubtless prices would lower then !!!

*

[Allowance must be made for

summer-time" in mort Euro

pean countries, which is one hour ahead of true time.]

, י

Ideal for New Year's Gifts.

PILOT A.C. Midget Superheterodyne

(Lowest Price Ever Offered:)

Skilled Radio Experts Supervision

Free Service to Patrons

1932 Model Engineering Features

7-Tube Superhet. Circult

Including Multi-Mu Screen. Grid and Power

Tubes.)

Pentode

air Line Selectivity

Volume and Tone Controls

Local-Distance Switch

Pick-up Connection Moving Coll Speaker

THE WING ON COM

T266714

Distributors,

LTD

THE 26072