1927-06-09 — Page 2

Cuborg B

for Hispa

JUST ARRIVED

A SHIPMENT OF

TUBORG BEER

Purveyors to

The Royal Danish Court. The most popular Danish Beer

on the Market.

6 doz. pts. $21.49 duty paid.

Sole, Agents

GANDE, PRICE & CO., LTD., Wine and Spirit Merchants.

St. George's Buildings, No. 2. Ice House Street, Tel. Central No. 135.

Hong Kong

GREEN ISLAND CEMENT CO., LTD.

Best Portland Cement.

SHEWAN, TOMES & CO.

GENERAL MANAGERS,

HONGKONG.

Kelvinator Keeps Food Better and Longer

Call at our office for a Demonstration

REISS, MASSEY &

CO., LTD.

(Engineering Department)

Agents for Hong Kong and South China.

Briablished 15k44

Kelvinator

Electric Refrigeration

The Woman who

motors

knows the value of

'HAZELINË”.

When she needs a touch of colour she uses

HAZELINE

(Thale Mark

ROSE FROST"

Both in glass pots

Drade Mark)

SNOW"

Applied to the face before starting, it prevents dust entering the pores of the skin. On arrival, another application removes all traces of the journey.

All Chemists and Stɔres

BURROUGHS WELLCOME & CO.

THE HONG KONG DAILY PRESS, THURSDAY, JUNE 9th, 1927.

BRITISH WIRELESS ACTIVITIES.

SOME IMPORTANT EXPERIMENTS.

ENGLAND'S GROWING EXPORT TRADE.

[BY A LONDON CORRESPONDENT]

CATHEDRALS AND

ACOUSTICS.

WIRELESS FOR HOSPITALS.

The equipment of hospitals with wireless apparatus is continuing steadily though there are a number of smaller country hospitals and need, probably institutions etill through lack of funds. According to medical opinion extremely bene ficial effects accrue in patients in

General

less

Girent Britain is justly proud of her ancient ecclesiastical buildings. The work of preserving these buildings in a proper state of re- pair is a gigantic ope while, at the same time, the task of moderuspitals equipped with wireless, and this is really not surprising. nising the is steadily carried ou.

for a wick man who is made to Electric lighting, central heating forget his illness will recover more and modern systems of ventilation guickly than one who is allowed to

brood. are now commonly found, but the A very interesting set has been latest problem to be tackled is in-spcially built by the

Electric Co., for the Cambridge

No provement in acustics.

Hospital at Aldershot. than 400 pairs of headphones, had to be supplied, so that very lig The amplification was essential. designers were faced with the pro blems of obtaining this huge ampli- fention without introducing distor- tion and accomplished this by a specially designed low frequency portion consisting of transformer coupled stages, followed by resist-

coupled single stages ance parallel.

A feature of the design of the tuning apparatus is the use of three tuned circuits which incorporated s that interference from a nearby telegraphy station could be eliminated.

The seating capacity of most of the cathedrals is strictly limited by the fact that a preacher can only be heard within a comparatively smalt radius of the pulpit. At Canterbury, for instance, the south Fransept and west end of the nave are notoriously difficult to hear in, while only a very powerful peaker can make himself beard elearly from the pulpit in the choir and Chapter House.

ferent tests carried out by the Marconiphone Co. proved so sue cessful in overcoming these defects that a set of microphones, ampli- fers and projectors is now being installed. A microphone and two special projectors are being fitted atench of the pulpits in the nave, choir and Chapter House to cover points where audibility is poor, Lines are run to a control board in the tunnel under the transept, and the emplifiers are placed in a crypt below the chair. A special devine fitted to the seven-valve unit enables the pitch of the reproduc ting to be adjusted to hurmonise exactly with the preacher's tones,

in

were

RADIO VALVE DEVELOP-

MENTS.

A number of important tests have lately been carried out on radio valves and the report of, but the official Government report the Mullard Company makes particu- larly impressive reading.

1 a 1000-hour continuous life a period equivalent to a test on year's broadcasting service, the valves retained 100 per cent. eff- ciener and were still worth over 97 per cent. of their original price. These qualities throughout the whole batch of valves dested.

were COMMON

One of the most reliable methods of obtaining faithful reproduction is by using resistance coupling, but in the past it has been impossible to

COMMUNITY SINGING. Community singing has been one of the features at large gatherings during the past winter and the effect produced by the combined vices of the gigantic crowd at aobtain anything like as much ampli- popular football match, for exam fication per stage when using this ple, is most uspressive. In this, forms of coupling as with other wireless has played an important more popular types. part, for without its aid the effec- tive control of these huge choirs would be impossible. Public Speech Equipment has been successfully employed by the con- ductor on many occasions.

its

This was not satisfactory and Cossor, Limited, have produced

iTz Ampliona valve the volt range. known as the 610 B.C. which, will give as much amplißention per stage as with other forms of

At the recent Olympia eirens it intriguing Lo observe the modern shownan almost whisper-

into ing his announcements microphone instead of shouting himself arse through a megaphone as did his counterpart in the past An Amplion Band Repeating Outfit was employed to augment the music of the orchestra for the benefit of the thousands of spectators at each performance."

"

THE IMPORTANCE OF EXPORT TRADE,

coupling. This remarkable valve has an impedance of 80,000 ohms and an amplification factor of 50. It consumes only I amp.

If anything approaching faithful reproduction is to be obtained it is necessary to have in the last stage of the receiver a valve which can deal with large inputs without valve is the distorting. Such n

Cossor Stentor Six. This valve with an impedance of only 3,000 ohms has an amplification factor of 3.5 and can deal with voltages on the grid up to 15 volts.

its

S.Y. "CONQUEROR'S" WIRE- The most cursory inspection of

LESS APPARATUS. the exhibits at the recent British Industries Fair made it clear that

One of the most interesting wireless manufacturers are taking yachts that have been fitted out in the question of export very serious London this season is Mr. Gordon ly and realise fully the possibili- Selfridge's 900-ton steam yacht ties for British apparatus oversens.

In addition to Conqueror,

luxurious equipment for Particularly prominent in this very

travel the Conqueror direction is the firm of 8. G. Brown, pleasure

a Marconi wireless in- Ltd., of Acton, manufacturers of carries headphones and loud speakers, stallation which will enable Mr. touch with his whose exports in 1926 amounted to Selfridge to keep nearly 10 per cent of the total affairs while at sea.

The wireless installation com- wireless exports from the United Kingdom. To obtain an idea of prises a Marconi kw. Quenched the volume handled, one shipment Spark Transinitter with a range of alone weighed some 10 tons but 300 miles, which ensures that dur- only represented a portion of the ing practically any pleasure cruise actual order. As the average the yacht will never be out of com- weight of each instrument was only munication with coastal wireless stations or other vessels. A two- 48. t can be judged what an enormous quantity of instruments valve telegraphic rociver will en

able commercial messages to be were involved.

The increasing demand for Am received as well as general news plion products in Germany has led bulletins, time signals, and meteo- from the the House of Graham to establish rological information yet another link in the world chain wireless stations in all parts of the this reveiver, of Arption Associated Companies world. In addition

the Deutsche Amplion Gesells a special Marcour marine broad- chaft," Berlin-and this will be casting receivor has been installed,

working from

independent manufacturing at an early date.

serial and capable of receiving, In Denmark the local agent over + very wide range, both had the honour of supplying lon Princess Dagmar with a Standard long and short-wave broadcasting stations for the entertainment of Amplion Dragon AR. 18, following those on Gourd Loud speakers upon the recent supply of a similar model to the King of Denmark. have been fitted in various parta It is encouraging to learn of this of the yacht so that broadcast music approval of British loud speakers and news item may be heard

wherever required. by the Royal Houses of Europe.

EXCHANGE RATES. (BRITISH WIRELESS SERVICE.]

RUGBY, June 7th.

Paria Brussels Amsterdam

Berlin' Copenhagen **

Vienna Helsingfors Lisbon

124

34.98

18.12

has

New York.

Geneva

Milan Stockholm Oslo Prague Madrid

Athens.

Rio Bombay

Yokohama Bhanghai

4.88

25.25

872

18.14

18.72

1637

28.00

386

5.27/39

1/5.03/84 1/10.18/18 2/71 2/01

WHITE HORSE

WHISKY

Wherever you see this statuette, they sell "White Horse"-real old Scotch. Millions and millions of gallons always maturing. AGE, STRENGTH and QUALITY GUARANTEED.

Made by the largest Independent Whisky Firm in Scotland. LANE, CRAWFORD, LTD.

P. O. Box 83.

HONG KONG.

THE TYPEWRITER

THAT INTERESTED

H. M. THE KING.

WHY ?

Because, not only was it British, but it was proved to be better and cheaper than Foreign-made typewriters.

HOW ?

Not only the Rome, Dominions and Colonial Governments, but also the Swedish Government have decided to replace Foreign-made typewriters by the Imperial.".

BECAUSE

As the result of open competition they were proved better and cheaper. Leading Firms in Britain, Australia, S. Africa and Canada are doing the same.

The

'IMPERIAL" TYPEWRITER

is a typewriter no Firm that values Efficiency and Economy should fail to inspect, and the stricter the In- vestigation, the more surely will its overwhelming superiority be proved.

NOW ON SALE

by the Sole Agents:

T. E. GRIFFITH, Ltd.

20.49

19.17 24.01

1027

*****

LONDON AND SHANGHAI

Bucharest **

2.7/16 807+

Hong Kong ...

6 Queen's Road Central,

Silver (spot)

20.3/10

A'f Rights Hevurmal

We 5071

Buenos Aires

17.11/18

Silver (forward) .......

96.3/16

ta f

Tel. C. #517,

[A.V.B.]