HONGKONG TELEGRAPH,
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SATURDAY, APRIL 19, 1924.
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'2, Queen's Buildings
Tel. Central 236
GECOPHONE
UTION IN WIRELESS VALVES
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C. OF CHINA, LTD.
Queen's Buildings,
Hongkong.
Chesterfield
Manufacturer
(FEATURE SECTION).
RADIO NOTES AND NEWS.
Some Hints About Aerials.
You are
All that is necessary is to at-
In spite of the frequent appear-ploce with the aorial, thus doing anca in most wireless journals of away with soldored, or, worse articles, concerning neriale, still, insoklered joints, and all short train journey through the the attendant ovils. suburbs reveals such a vast num- allowed to use any aorial the her of badly dosigned and roughly combined longth and height abovej constructed aerials that one is load-in point of which does not forced to wonder that many of foxcood 100 ft. them function at all, says a writor
Yet intach one ond of your 100 ft. to un in Popular Wireless. almost every case these could boinsulator, measure from this point! replaced, at a very small exponse the length of your norial, attach by something far more efficient another insulator, and use part or And more pleasing to look upon. all of the romaining length for For the wireless public will judge your lead-in. The insulator at you by your aerial and your time the load-in end is best attached will cortainly not be wasted in by binding the wire to it with putting us something more worthy tarred string.
similar. of the name.
Although this no-joint чуда Atemis by far the best, if you still intend to indulge in a soldered joint, don't attach your lead-in wire some 5 ft. from the end of your aerial. If you do so you will change it from an invertąd L to a very bud T aerial with the lead-in very far from central. The result will be two natural wave lengths, and consequently! poor results. Yet one vory fre- quently sees norials arranged in this manner.
Homothing
M
Erect your aerial as high above all surroundings as you can. short, high norial will give better results than a long, law one under the same conditions. If you are erecting it on a roof, have it as higit above the roof as possiblə not a few feet about the slates,
If the wires must slope, try and arrange to take your lead-in from the ground. Do not run the wires parallel to any near-by telephone or telegraph wires, or to your neighbour's agrial. Subject to these conditions, arrange it, to point as nearly as possible in the direction of the station it is most Liesired to receive. Results will usually be improved by tak
reach the instrument ing the load-in from. the end
TOVI. Text books frequently! nearest the station to be received.
The writer would not recom- advise joining the two wires and mend the twin aerial for other having a single lead-in. By the than experimental purposes, pro- uno of two separate lead-in wiros, vided a fairly long single wire is jaining at the instrument table. practicable, since the extra ex-the twin aerial can be used for penso and trouble involved, and receiving on the longer wave-
WE ARCHONS IN THIS MOMAN'S OBVIOUS IN PRIORITY FO MAN, ETC.
Another point which for no apparent reasoh nearly every-1 body overlooks is the advantage of keeping the two inad-in wires from a twin aerial separate until they
Prof. Honpeck, broadcasting'his views on "Love and Marriage. enjoys the delicious and altogether unique' experience of having his wife so situated that she cannot answer back.
the heavior fittings required, are lengths and ono wire disconnect- not justified, by the almost od for short wavo recoption. And, negligible increase in sigos! still more important, yet another" strongth obtained. The inverted joint has been avoided. Finally, L typo of aerial is almost keep your lead-in away from any gutterings, always need by the amateur, be-cast-iron pipes, or ing simple to erect and quite otherwise energy will be lost in satisfactory for ordinary require-inducing eddy currents in the!
metal.
monts.
THE WIRES.
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RADIO
COMPLETE SETS OR PARTS
ALL MATERIALS IN STOCK INCLUDING HEAD SETS "A "B" BATTERIES.
COMPLETE SET OF PARTS TO MAKE UP A THREE › VALVE SET, ALL IN ONE CABINET
- RELIABLE NEAT-COMPACT-
PRICES MODERATE FOR HIGH CLASS EQUIPMENT OFFERED,
SHEWAN TOMES & CO.
Tel. 781,
Tel. 781.
DORECTIONS FOR VEIL
Put the Las Malva anto *bout. wist on hepoting wal and wheal into
cryum
Radar to Ju imprehe
tindly uncaster regiamų
The traite. Than conan ar
Lux for Lace
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the valung and perurning of ilunay labere. I Monterualité delightåkl 19 am Live, and we give here a few peroculars of Chaully, knowag tral, whmer you think of Lace in general, a Glently in partnalo, you will always remember that, kna in sou ne'endul lia mantuming Las in the. Fulmens of a beauty and charm. CHANBLLY Ţie perskat dolupen af Channily,
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with sogle Branded wil swed moh là air of Frauen, to a high stand fhose warfare 1991 name the Calingi, shung parabants of True Chestify the commmend as if the tenke st The magneming va « incom, shirtma. bely, as the Past For the Ford Cham and it may be taken we vanding of Just prepa man in wang den ↑ tightful farve in Crepe de Chame, Arndt,
LUX
..
FOR DAINTY FABRICS
AGENTS:~'.
The Chunk Suup Co., Ltd.), Shanghai Hongkong. Tjentein Haukow-Talnanfu-Moukden
HONGKONG HARDWARE CO.
TAI LEE CHAN.”
ESTD. 1884
METAL GOODS and HARDWARE. Tel. No. C.1993.
ample section answers the pur- pose quite well.
ITEMS.
SONGS IN LOS ANGELES
RECEIVED..
119 Jervois Streek.
PROOF OF POPULARITY.
A written reply by the Post- master-General to a Parliament- ary question shows the extent to which broadcasting has been. taken up by the British people. On January 31 about 830,000 wireless receiving licences were
in force. The total amount act-
The success of the British ually paid to the British Broad-
i
Copper wire is nearly always An item of considerable im- used nowadays, its chief advan-portance in aerial design is the tage being good conductivity, and almost inevitablo mast. Do not its chiof disadvantage a 'low ton-use flimsy material. A bamboo eile strength. In view of the mast consisting of three or four latter property the reador may pieces bound together seldom profer to use hardrawn oopper or makes a satisfactory job, and is phosphor-bronze wire, obtainable usually not worth the trouble. at a slightly increased cost. A metal mast is probably the best Broadcasting Company's experi-casting Company by the Post Stranded wire is vary suitable. typo if properly erected, but those mente in transmiting programmes Office to date is £71,450; but sub- sinco It possesses a greater sur cost money. Old scaffold polos received from the United States jact to Parliamentary sanbtion, face than the single wire; 7/22 are choup: and a good sound recently varied considerably. and to their obligation to return. or thereabouts gives very good specimen, if trimmed up and The first attempts, made between any ultimate surplus, as provided their last agreement with the given a low coats of paint, is 11 p.m. and midnight on a Satur-
day, to radiate music from Post Office, the total amount the quite suitable.
The writer obtained an old W.GY. at Schenectady and company will be entitled to re- railway slooper, sunk one end of K.D.K.A. at East Pittsburg, were coive in respect of the fdes on this to a depth of: 5 ft. into the badly marred by weakness of the these licences will be about ground, and bolted a 30ft. signuts and strength of the atmos- £348.000. scaffold pole to the protruding pherics, but there was compon. Railway sleepers are eation later for this partial failure and. thoroughly imprognated with in good reception of songs from creosote, and can be relied upon the
}
THE PLATINUM LURE.
rasults.
Enamelled wire is usually stated to ho betier than bare wire sinco the latter is liable to corrosion. It is doubtful whether the corrosion is sufficient to affect results though the tensile strength of the wire may be decreased. For seaside aorials
station of Mr. Erle C 'An attempt has been made to enamelled or rubber-novorod wire
not to rot for a considerablo Anthony at Los Angeles, Cali- stool the metro measure which would perhaps be preferable.
fomia, these having been first serves as the international stand- Larga sulators are quito out period.
The rope used should be thick picked up by W.G.Y. and reard for the metra length. This of place on receiving aerial. Not only are they unnecessary, enough to withstand a much transmitted across the Atlantic, measure made in platinum, is/ but they increase the weight on greater strain than that imposed Conditions still further improved, kopt in the Pavillon de Breteuil, the supports. For single wire upon it by the weight of the and during a period of great free-noar Savres. The keeper, while two, or at the most arce, small serial. It should be free from dom from atmospherios a pro- going ble rounds, noticed,s man insulators of the egg, real or shell knots, and long enough to allow gramme from the Albany Hotel, running away from the building type are quite sufficient. If two of the aorial being lowered New York, via the station W.G. Y. at full speed. Near the entrance wirds are used, one insulator at to the ground without getting out and also items from the station was a complete burglar's outfit, each end of each wire, and two of reach. Stranded Iron wire studio itself, were received very with the aid of which, the man between the apronder and the up should be used for stays, galvanis clearly. An official of the com-apparently hoped to be able to port, are all that are necessary.ed to prevent rusting. For the pany stated that during the last reach the precious metre and also The lead-in is the wealt.point's as twin serial iron wire is 20 minutes the reception was the a large stock or platinum kept in many aerials. The best ar suitable, or provided the serial is clearest yet attained in these the building. The man was rangement is to have it in one not too heavy, insulated cable of