THE HONGKONG TELEGRAPH.
WEDNESDAY, MARCH
RADIO NOTES AND NEWS.
THE BUICK MODEL "50"
LIMOUSINE SEDAN.
: 0:
Combining the qualities of a chauffeur-driven car with those of a closed car for family use, the Buick Limousine Sedan is a distinctive addition to the Buick line for 1924. It is another evidence of Buick's policy of furnishing a car for the majority of motoring needs.
12
The one-piece curved glass that separates the driving compart- ment from the tonneau can be lowered completely out of sight by simply turning a small handle on the back of the front seat. The car is then converted into a Sedan for the use of the owner or members of the family.
Sole Agents :
Hongkong and Kowloon Taxicab Co., Ltd.
CARETTES
ENG GETZ & MYERS INSATTE IN
Telephone No. 1036.
C
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We buy only the choicest and most expensive grades of Turkish and Ameri- can tobaccos. And then these fine to- baccos are blended in just the right pro- portions for full flavor and pleasing taste. You can't buy such quality in any other cigarette at the price.
Try them today.
"They
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Feat By A Schoolboy,
At 5am one day recently, D.; which the compass needle is fired W. Gorder, a schoolboy at Mill in a horizontal position. The Hill School, near-Hendon, ran to needle is thus at the centre of the the school's wireless experimental coil, and the arrangement then: station to test a set that had been constitutes a galvanometer. If |finished the night before.
an ordinary galvanometer can be By Tam. he had spoken-by borrowed fram'a friend for a short Morse-to a friend at Maine Unitime, the two can be placed in versity, a student at Harefield saries with one another, and with College, Pennsylvania and three a rheostat and various currents United States and Canadian stapassed through. The positions tions.
of the needle on the home-made No one has bean more surprised instrument can then be marked by the feat (says the Danly Mail) according to the readings given than this 18 year-old boy himself on the standard instrument. This The school wireless apparatus is called "calibrating "the instru had been dismantled during build-ment. An instrument of this kind ing operations, and Goyder baving is also very useful for determin- finished reassembling the night (ing polarity. befora was anxious to see if the apparius worked properly.
He licked out his station sigual in the darkness of the early morn
Almost at ag. 28X SX 28X. once came a reply. "BN" and he knew he was in touch with Montreal.
A POLARITY INDICATOR. Talking about polarity indica- tors, ona is frequently asked how a simple one of these can be made. Well, a simple method is to take a short length of glass tub- ing, sas 6 in. long and about 1 in. in diameter (the exact size is not He exchanged greetings, and then, came the sequel, IXAR-important, however), and obtain a tight-fitting cork for each end, a short brass screw being inserted through each cork, with a binding screw on the outside.
دا
IXAR,” an American station be lieved to have a special licence. But the whereabouts of which is
not certain.
More greetings and then an in- sistent 30T." This was Gayder's great achievement. He was in touch with Irving B. Smith, said bis message, of Harefield College, near Pittsburg. For the first time, probably, two shoolboys were 'talking' over the 3500-miles width of the Atlantic.
Time was short да the Post Oce will not allow this station to transmit after 7 a.m. so the
talk ended..
IBDT." "1BDT." & thrilling call for young Goyder. He had been corresponding with Mr. E. F. Handy, of Maine University, and knew that this was the univerity's signals. He now found himself speaking to his American friend and receiving replies by wireless.
A small nut may be placed on the inner end of each screw-rod, so as to make a tighter fit in the cork. The tube should be filled nearly, but not quite, with a solu- tion of phenol-ptialein (which can be obtained from the chemist). When the poles of a battery are connected to the terminals of the tube, a red spot will be noticed in the liquid in the region of the negative terminal After use the tabe should be shaken up, when the red colouration will disappear, and the tube is ready for use again.
•
POPULARITY OF RADIO.-
What more proof does one want than this, of the popularity of radio in America alone? The
acts were presented recently by
HEARTBEAT OF MOTH HEARD.
A microphona so sensitiva, that it can transmit the faintest sounds to the human car is the invention of Dr. Phillips Thomas, researchen- ginner of a large electrical concern. Dr. Thomas is shown here listening to the heartbeats of a moth through the new microphone.
SYNCHRON ORE
·ELECTRIC- CLOCKS,
TEX SYNGHRONOME System of Electrical Impulse Clocks
'consists of
Electrically-Driven Pandalum skich operates any
wah Dinizi The Pandulum is combined with A simple switch lima-keeping and switchis 176 performed
**
that oth
fvestions automatically and
AR Ideally parla MARKET. Each dial has only a 'one-what? *** sovament behind it, yet this simple
socarea wwform an Lime-karping
147
ZETOŽE
wikkort winding attention.
other
They are correct to within half
minuta
MGalax
for.
us quota completa installation.
SHEWAN TOMES & CO. Sola Ajaals. Tat TBL
Die handle handles it"
Outing
Master of Movable Music
Chesterfield
CIGARETTES
of finest Turkish and American tobaccos-blended
LIGGETT & MY211 Tobacco Co., U. S. A., Manufacuser
A permanent roofing at a price competitive with corrugated iron. "ITALIT"
The perfected red and grey corrugated cement asbestos
ROOFING
-
The Inspecting Engineer to the Crown "Agents for the Colonies
M
M
has conducted LE in- teresting and conclu- sive series of tests on
"ITALIT"
and a copy of his report, together with full parti culars of ITALIT," will be forwarded post free on request.
·
**ITALIT, A provides the mazi mum in durability and safety at minimum cost,
a
Deilvered or fixed in any quantity anywhere. Just ask for a copy of the “ITALIT” Booklet.
STOCK CARRIED BY—–
SHEWAN TOMES & CO.
HONGKONG & CANTON.
SOLE AGENTS
E. HING & CO.
SHIPBUILDING MATERIALS, SHIP' CHANDLERS &
HARDWARE MERCHANTS.
PHONE CENTRAL 'No. 1116.
25, WING WOO ST.
Central.
ness
thing may
periment is easily tried.
As time passed his enthusiasm, Mr. Pierre Boucheron, member grew, and without any intention of a large radio corporation. of breaking the law be carried on They summarize: 363 licensed
stations in thei his two-way communication for broadcasting about an hour-for more than United States; 3,000,000 radio) twice the time the Post Office al-receiving sets: 10,000,000 listeners:
lows him to send a messages. 250,000 persons connected with THOSE ATMOSPHERICS"
the industry: 3000 manufacturers There followed quick messages of radio supplies: 25,000 retail Often when you switch over to
to and from "LBQ," thought to the second L. F. stage (using be a Mr. Greig, of Novia Scotia, dealers: 1000 newspapers which phones) the advantage in loud and then Goyder dashed back carry radio news: 3000 weeklies is outweighed by the into the school to break the news, with radio sections:.30 radio scratching and crackling. Every He had previously had two-way periodicals; 50 magazines carry. communication with the Uniteding radio sections; 250 books on apparently be in
States, but not to such an extent radio seven radio trade papers; and Gold $175,000, estimated ox- order, apd yet a surprising nor with the same receiving set.
penditure by the American public improvement may sometimes be
Goyder, who is a science
during 1923 for radio material. made by placing a very high enthusiast, is the operator of the
" ON "CAT-WHISKERS." resistance across the secondary school wireless society. His ap-
A Cat-whisker makes only one! leads of the last stage. The ex- paratus for this feat consisted of a contact. It is often recommended 250-watt one-valve transmitter to use iron or brass fillings in and a two-valve one a detector contact with the crystal, so that Instability of dull emitters and the other, a low-frequency there shall be a large number of when used in the ordinary re-amplifier-receiver.
contacts. This, however although A USEFUL GALVANOMETER. effective enough, has the disad- generative circuit can sometimes be overcome in the following There are many purposes for vantage that the crystal mast be simple way. A piece of ordinary which a simple form of galvano in a horizontal cup, or else some electric light "flex" is untwisted meter or amperemeter comes in form of tube must surround it. A useful to the experimenter. The method which has the advantages for about two inches, so as to form more elaborate forme of instru-of the fillings without their disad- two "lega" proceeding from the ment are usually expensive, andvantages consists of a small twisted part. The braid should in many cases are unnecess- bunch of steel wool-instead of: (bundles of this preferably be removed, leaving arily accurate for general work. cat-whisker
A simple galvanometer can be material are to be had in iron- only the rubber covering. This
made with an ordinary compass mongers' shops, and are used for now forms a small condenser and needle (the kind which is mounted cleaning pans). Properly arranged, if one "leg" be laid on the anode inside small glass-covered this gives excellent results.
There is a great variety of lead, and the other on the grid circular metal box), and a card-
probably "cat-whiskers," and lead (care being taken that there board tube about 311⁄2 in. in is no direct contact) the capacity diameter and about 1 in. long. every amateur has his own par The cardboard. tube should be ticular fancy. Here is an idea of will sometimes be found to have wound with about four layers of a cat-whisker made from a piece the effect of keeping the valves No. 30 S.W.G. wire (the exact size of tinfoil, the latter being cut in a steady, The capacity will de-of wire is not important, however, serrated manner by means of a pend upon the length of twisted nor is the number of turns or pair of scissors. The tinfoil is flox which remains attached to layers), and should be mounted in then coiled around the stem of the two legs. It will be noted a vertical place, by attaching to the holdes, and secured by means of a piece of twisted wire, or in that this is contrary to the rule a suitable baseboard. that capacity around the anode Across the horizontal diameter any other suitable way, and it circuit should be kept as low as of the tube should be placed amakes contact with the crystall possible.
strip of wood, at the centre of at a number of points.
THE PORTABLE}}{PHONOGRAPH -SUPREME,
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ment of beauty at home amidst the best of furniture.
If you are fond of picnicking, motoring "or swimming the "OUTING" is just the thing to make your parties a 100% success.
OKEH STUDIO,.
8. Des Voeux Road (Comer of Ice House Street and Des Voeux Road, Central). Sote Agents.
Telephone No.-Central 4453.
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GOERZ GOERZ
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THE HUMAN ZOO
By C. D. Batchelor ·
1941 19
Medine. Corngany
LITTLE GIRL WHO KEPT ON PLAYING