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THE CHINA MAIL.
RADIO TOPICS
DRAMA ON THE AIR.
AMERICAN MAKES SUCCESSFUL INNOVATIONS:
ENSURING CONTINUITY.
Drama is admittedly, difficult to "pat across" by radio.
The fact that listeners do not see the characters, and so miss the
more than words has militated against the complete success of the indio play.
VALVE DESIGN.
THAT IRRITATING HUM ELIMINATED.
RUGBY'S WONDERS.
MARVELS OF WIRELESS TELEGRAPHY,
-GREAT BRITISH TRIUMPHI.
When the great wireless station Was at Rugby was completed It claimed that it was the most power ful in the world. The records of
en-
indus-
Decidedly novel and interesting features are incorporated in ǹ new valve which is to come on the mar- ket shortly. This valve permits al low tonaien battery to be entirely dispensed with, and works direct from alternating current maina. It gestures-which sometimes tell is in no sense the "cold valve" pro- the Inboratory for special radio! mined by wireless experimenters as conducted jointly by the Bureau of
transmission research, which is a passibility of the future, but by Standards and the American Sec- means of a new method of "henttion of the International Union of Now, however, Dailey Paskman, ing by radiation," it makes it pos- Scientific Radio-Telegraphy, proves manager of the American station,sible for almost any receiver to be that it is also the most efficient. WGBS, claims to have achieved re-
successfully ran from the mains. Its latest report deals with the markable results by means of
At present its use is limited to al-signals of the wireless stations several innovations.
He started experimenting with lernating current mains, hefu throughout the world in the months of September and October last, and broadcast plays in 1925, when he operated through a step down trans-
former without any rectifying or the results constitute a triumph for booked players for a condensed
smoothing circuit. Existing
British British scientists, version of "The Taming of the
methods of obtaining filament Shrew." This attracted moderate voltage from the mains are asso. try, for, except for one
gineers,
British and attention, and later Mr. Paskmaniated with an irritating hum, and detail of equipment, the station is smati successfully adapted some of 0.
there are other technical difficulties, entirely British. Its design was Henry's short stories,
In his broadcast plays he has in- ture from previous design immade sion, over which Mr. W. H. Eccles but in this valve a radical depar-prepared by the Wireless Commis. troduced an extra character- with a view to overcoming these
presidea: practically all "scene actor" who describes to drawbacks.
the material, not excluding the remark- listeners the nature of the play and.
Everyone knowe that the purposeable thermionic valves, was mnde the identity of the players. Не
of a filament is to give off a stream in Britain; and the station WAH inkes listeners from one scene to of electrons when heated. The re-erected by the Engineering Depart- another when the action changes, velutionary point in the design of and so provides the necessary con- this now valve is that the electron Colonel T. F. Purves presides. The ment of the Post Office, over which
tinulty.
emission takes place from A station was in some degree experi- The radio play must be con enthode, a tiny cylinder conted mental, as it represented a tinuous," saya Mr. Paskman in the with a radio active substance, which departure in equipment, and it was New York "Herald-Tribune." encloses the filament. Through a "There can be no intermissions
fila- step down transformer the whatever, or else the listener willment is connected to the alternat- "He regards music as essential.ing current mains, and when the Without it the biggest scenes lose rounding cathode, being heated by half their value. The music must radiation, gives off an enormously he scored to interpret the mood of high electron flow. This cylinder the play. just as it is scored in the
remains unaffected by any small
tune out."
on the screen.
Musical Background.
יוי
filament is at white heat the sur-
AERIAL AND EARTH.
When installing à radio set it is
new
with
therefore thought in some quarters would give in comparison to be uncertain what results it those which had been obtained from the other powerful stations abron which were already operating. All
at
doubts have now been set at rest by the report which has just been einema to fit the mood of the action changes in the temperature of the issued of the observations made at
in Washington September and filament, and the electron flow re October. mains Consequently unchanged.
The weakness of the signals from The grid and plate, of course, sur the famous Germun station But music, he thinks, is excced-round the cathode in the usual way. Nauen, of which so much was ingly more important for radio A curious point is that it takes drama than for the cinema, because the new valve some time to start heard during the Great War,'ie par- the appeal of the radio perform functioning aftur switching on the ticularly Interesting, and even the ance is limited entirely to the sense heater current, owing to the time French stution at Bordeaux, ence regarded as unapproachable for the of hearing. Music is the scenery, taken for the cathode to reach a strength of its signals, is revealed and setting of radio plays.
suitable temperature. It is has sending far less strong signals General opinion is that the public factured by the Marconi-Osram than Rugby. The claim that the likes short, snappy broadcasts, but Valve Company.
super-British station, which is now Mr. Paskman says he has evidence
being used for transatlantic tele- to the contrary. He broadcast a
phony with such remarkable auc- dramatisation of the life of Mozart,
cess, is the most powerful as well with the composer's own music as a background. This occupied an important that the aerial and earth as the most efficient, is consequently hour and 20 minutes, and was re- should be given avery eare and at-supported by the most impartial
evidence. ceived enthusiastically by listeners. tention. In fact, some of the A similar Beethoven broadcast aerials which are seen about are drew high praise from radio fans.
anything but beautiful, and could
TALK OVER ARCTIC CIRCLE. hardly be expected to give the best results. Do not expect maximum
Marconi International efficiency if your lead-in is resting against the guttering of your house. Marine Communication Company You will not get it, as there is states that the first recorded trans- usually a leakage to earth. Keep mission of the human voice from A new terror for wireless lis- away from the guttering and also one merchant ship to another over from the walls, and you will find the Arctic Circle la. reported by the teners is developing daily, especially afflicts those who are far great difference in signal strength Hudson Bay Company as having from their "home" station, or those and selectivity. An aerial which is taken place during the last voyage who are picking up distant broad- too long is not conducive to selec- of the B.B. "Bayrupert." This ship was fitted with a 100 watt Marconi casts, and it is due to the selfish- tivity. The ideal aerial should be ness of other listeners who employ between 30ft. and 40ft, high, and wireless telephone act at Montreal the latest methods of fine-tuning 75ft. long. A single wire aerial is, before starting on its voyage to the while still oscillating. This new perhaps, the best type to erect, and trading posts in the Hudson Bay at The crime has been termed "oscillating three insulations at each end form the beginning of the summer. on the silent point," and there is
a good insulation medium. an ever-growing volume of com-often a good plan to have two plaints.
LATEST RADIO PEST.
It
The
It is primary object of this equipment was to enable the Hudson Bay Com- aerials, one long, as stated above, pany's officials to speak to the posts and the other one short, about 30ft. about twenty-four hours before overall. A switch can be used to reaching them so as to enable them change over from one to the other to make docking arrangements, and at will, and this is a distinct ad- so to have time when the ship vantage where radio frequency is arrived.
If you find that your signals, after a preliminary whoop or two. either double in volume and be come horribly distorted, or twist for a moment and then fade away to almost nothing, you may suspect employed in the circuit. Such re-
Very much greater ranges than
that you are being "sat on" by a eelvers 48 the Browning-Drake, had been anticipated were achieved, silent point oscillator. Listening Neatrodyne, or Superbeterodyne do and on August 80 speech from the in his private capacity, an official not need any aerial at all for local "Bayrupert" was clearly received of the British Broadcasting Cor-stations. The distant station is
on the "Baymand" and the "Bay- poration recently was "sat on" in best received on the short aerial, chime," which were six hundred this way for an hour and 25 na selectivity.
asaured. The miles and 1,100 miles distant res- minutes!
earth, of course, is equally impor-pectively, over the Arctic Circle. The explanation is this: A set tant. Keep it short; also keep it Not only was this the first time, so in a state of strong oscillation tunes moist. An excellent earth feb far as the Hudson Buy Company in. Coarse handling of the contained by burying a length of 50ft. is aware, that the human voice has densers would result in the old too- or 100ft. of 3/20 or 7/20 bare cop been sent across the Arctic Circle familiar howls of the ordinary os per wire. Another excellent earth from one merchant ship to another, cillator. Very delicate and skilful is the waterpipe. Never use a gas rupert" and the "Baychime" is pro but the distance between the "Bay- touches on the fine-tuning devices pipe. It is dangerous. The very
now available bring the howls down important point is to keep the earth bably & record distance for tele- finat to a deep mutter and then to moist if the wire is buried in a dry phony with this particular set. silence. The sounds have fallen place.
below the limit of human hearing.
Sensitive wireless impulses, how-
ever, are still very much affected STOPS NEURALGIC PAINS AND
by the re-radiation from the aerial
HEADACHE.
of the silent point oscillator. TORMENTING neuralgis is eased and
is tuned in to the same station.
tho
tha
BROADCASTING PICTURES.
..
Replying to questions in, the These re-radiations affect the set. stopped by Chamberlain's Pain House of Commons, Sir William Postmaster - of any neighbouring listener who Balm. Being penstrating, it reaches Mitchell - Thomson,
congested spots, starts the General, stated that experimental There is now a new device called circulation, removing the pressure and wireless licences had been issued
Inflammation that causes the pain. main. the radio-goniometer, which, in con Helps headaches, backaches, stiff, swal-
to several people to enable them to junction with a frame aerial, should ten joints, bruises, sprains and sora experiment in broadcasting both be equal to the work of tracking muscles. Sold and recommended every still and moving pictures. Several down silent point oscillators.
systems had been suggested, but the
YES-DEAR- I'LL NEED AT LEAST TEN HATS-TEN PAIRS OF SHOES AND I HAVEN'T DECIDED. ON THE NUMBER OF DRESSES. I'LL BE IN TO SEE YOU
SOON!
where,
BRINGING UP FATHER.
THIS IS MRS-JICCS-THE TRAVEUNG AMBASSADOR'S WIFE SPEAKING- AS YOU KNOW WE START ON
OUR TRIP AROUND
THE WORLD: I'LL
NEED A LOT OF, CLOTHES-FM
COMING DOWN TO
SEE YOU!
TUESDAY, APŘIL ‘19, 1927.
DAILY CROSS-WORD PUZZLE.
(This croka-word puzzle has been made by an expert but our readers are warned to look out for occasional phonetic spellings, such as harbor, plow, and altho.)
7
18
10
n
13.
14
16.1
17
na
19
20
12.1
120
24
25
2.7
28
31
36
3-MOTRES
B-Hint
24
15
48
·
32
37
(42
M3
26
THE INTERNATIONAL SYNDICATE.
HORIZONTAL
HORIZONTAL (Cont.) 36-Quldo
37-To permit
7-Intended 9-Those having
Questa
139-Ta peruma
40-By or near
11-Prefix meaning
"two"
12-Entrance to New York harbor
14-Italian river 16-8mall herd 18 Travola 19-8ulk
20-Want
22-Metallic element
23-A coagulated meas
24-Clook face
26-Tribo
27-Light-minded 28-Expired.
29-Wagics
31-To plant good 32-A serpent 34-Dispatch
41-Actors
43-13th letter of the
alphabat
|44-Entries
46-Wild animal 48-Dried grass 48-Kettle
VERTICAL
1-Lend
2-Ado
-Exist
4-Inaoot
6-Bovine quadrupeda.
-And (La) 7-Dug for ors
6-A brisk proa
B-Wind Instrument
10-A pleas of table
allvor 11-Anathematiza
VERTICAL (Cont.) 13-Disastrously 15-Three strikes In
barchall 17-Exalted
Mixture of limo, sand and water 21-Risked
23-Hints that gulde
through a maze 25-Caver
26-Kind of horno 20–Cessation of life 30-Scoff
31-Dosan 32-Alack
33-One who writen
versa
35-Obstruction 37-Associato las-Cipak
41-Drama
42-Blemish
|45–Exclamation
47-Pronoun
SUGGESTIONS FOR SOLVING CROSS-WORD PUZZLES
Start out by filling in the words of which you feel reasonably sure. These will give you a clue to other words crossing them, and they in turn to still others. A letter belongs in each white space, words starting at the numbered squares and running either horizontally or vertically or both.
(The solution of the above cross-word puzzle will appear in to-morrow's issue along with a new cross-word. puzzle,)
matter was not yet out of the ex- perimental stage.
Asked whether he was aware that in Vienna 3 pictures were sent out every evening by photo-telegraphy and whether he had received a re- quest from Mr. Thorne Baker to transmit photo-telegraphy on the same
system, in Britain, Sir William said he was aware of the experiments being made on the Con- tinent. The Thorne Baker process was one of those working experi mentally at present.
Sir William announced that the number of wireless licences issued during the year 1926 was 2,178,000 compared with 1,642,000 in 1925. The total receipts were £1,089,000 in 1926 and £821,000 in 1925.
YESTERDAY'S SOLUTION.
DAUNT SNIPS ESS ACTION TRI TA ERR BUI OR E ANTO OGEE U RIND SADE TRAP MASS BE LEEK MADAMGI ETUDES: BLOW CE SLA LEAN ETNA ANON E AULT BARD AS SET
SAM FASTER CIS TWIST JSTORE
BEER MATERNATIONAL SEMIRATES
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..
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·AH-MRJICS-YOURE A LUCKY MAN 'GETTIN' THAT |JOB- JUST THINK HOW-
CHEAP YOU CAN LIVE IN:
EUROPE
THAT'S WHAT I THINK
OF YOUR "THINKIN'!
1927 BY INTL FEATURE Service, "ING,
·Great Britam rights ́ensorvad
ד