TUESDAY, JUNE 17, 1930.
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RADIO TOPICS
TO-DAY'S PROGRAMME.
The following programme will be broadcast to-day from the Hong Kong Broadcasting Station Z.B.W. on 365 metres:
6-8 p.m.Programme of Colum- bin Records by courtesy of Ander- son Musle Co.
6 p.01.
"The Rose", Selection,
to
the LEAGUE OF NATIONS]
for privileged visitors studios. It is intended only for talks and lectures and is used, for instance, by the Prince of Wales and Mr. Baldwin. It is quite near the lift- necessary precaution in the case of persons whose time is invaluable.
no
One Targe studio contained fewer than three microphones. They were not used aimultaneously; Grenadier Guards Band. twe are reserve instruments in case 4.08 p.m.-
the one in use happens to break "Come Silver Moon",
down. Two were supported on framos; the other was suspended from the celling.
This particular studio contained a litter of musical instruments: timpani, saxo among them were phones. Д double-bass, and two pianos, and it was evident that Mr. Jack Payne and his famous band had only recently censed playing.
Duet: Dora Labbette and Huibert Eisdell 3.14 p.m.- "Raphaellito"....Albert Sandler and
Orchestra. 8.20 p.m. "Shallmer"..Piccadilly Revels Band.
6.28 p.m. "The Village Blacksmith",
Columbia Dramatic Players. 6.35 p.nt. "Fugue, alla Cigue" (Bach),
Herbert Walton (Organ).
Arranging an orchestra before 6.13 p.m.
the microphone is no simple matter. "Where E'er You. Walk" (Semèle), It is essential to get the correct Master John Griffiths, balance of sound and this can only
be done by getting the Instrument In a prescribed position. Violins and other stringed instru- ments are, for example, nearest the microphone and they are followed by saxophonea, trumpets and drums. Some idea of the patience which gnes to the broadcast of a success.
6.52. p.m. "Casse Noisette Suite",
B.B.C. Wireless Symphonyalists
Orchestra. 7.18 .. "The Gentle Maiden" (Somervell);
W. F. Watt (Tenor), 124 p.m.- "A Musical Switch".
Plaza Theatre Orchestra. 7.44 p.m.- "Three Dances from Henry VII",
Bournemouth Municipal Orchestra,
·7,50 p.m.- "Devotion" (Ketelby),
Turence Casey (Organ). 1.56 p.. "Sunnyside Up" (Selection),
Jack Payne and B.P.G.
Dance Orchestra.
8 p.m.-Chinese Programme re- Jayed from Ko Shing Theatre
RADIO.
AGREEMENT WITH SWISS COMPANY.
Zurich, May 15. The negotiations concerning a radio station for the League of Nations, which have for
AONO
time been conducted between the secretary of the League and the Swiss Federal Council, have now resulted in an agreement ready
to be alyned. The idea of a radio station owned by the League has been given up. The League will avail itself of the services of the
station at Prangins, near Geneva, which belongs to the "Radio Swiss" Company, but will be put at the League's disposal in timej of crisis. This solution has the advantage of being very cheap.
year, whereas natation of its It will cost the League about £500 own would have cost nearly £100,000 construction, and annual expenses amounting to an- other $20,000.
ful musical
for item may be gained from the fact that the precise poai
tion which each performer must take is marked out with chalk. Encouraged by Spotlight. In each studio there are lighting signals which show the performer when he is "on" and when he is "off." Outside the door of each studio are two lights-one red and
blue. the other
When the blue light is switched on the studio will shortly be required for use.
until the end of the Play. CONTROL.
obtainable, everywhere.
Local Distributors:
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Donations and Subscriptions must now
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Goldsmith, 525, The Peak.
HONG KONG BENEVOLENT SOCIETY
A GENERAL'S WIFE.
Abandoned as a Baby, Now Sues" Mother."
Paris, May 5.
A case which is shortly to come before the Paris courts would read like a fairy which has resulted in a
law sult.
Thirty-five years
ago, says The
Journal, a servant girl named
Antoinette gave birth to a child
whom she named Adrienne Edith.
mother handed the child to the Poor
Law authorities by which she gave
up all right to her child.
Adrienne grew up nameless but beautiful, the pride of her peasant foster-parents. She had grace and intelligence.
Shortly after, the War she became the wife of a British General. *
She then started a search for her mother. A woman bearing the same name was found; both, how- ever, are widespread in France
PRESS ANNOUNCEMENT:
Local radio listeners will again have an opportunity of hearing the Queen's Theatre. Orchestra broad cast from the studio of Z.R.W. on Friday.
The previous studio performance of this orchestra having proved a most successful feature, and in response to many requests received from listeners, arrangements have been made for a performance of one hour commencing at 9.30 p.m. This will be preceded by a studio concert commencing at 8.30 p.m.
Further details of the concert and concert orchestra performance will be published in the complete radio programme on Friday.
AT THE B.B.C.
A Peep Behind the Scenes.
I
The
red light shows that rehearsals are in progress, while the blue and red together indicate that a broadcast is taking place.
In all the corridors is a large sign exhorting everyone to "Silence."
There is only one studio of the old type left at Savoy Hill. It is heavily draped on ceiling and walls,. but it is used for the broadcast of variety turns. It has a spotlight which is turned on for the benefit of those artistes who find that the nearer the music-hall atmosphere is reproduced, the better they can per form.
able.
The question of stage costume largely depends upon the time avail- The actors in a two or three- hour play will probably dress for their parts, but the comedian who gives a "turn" at the studios in be tween a twice-nightly, performance at a music-hall often has no time for dressing.-Weekly Telegraph.
ABOUT RECTIFIERS.
[Dy William Piggott.] Would I step into the waiting- room and hold myself in readinesa to Many are the types of rectifiers visit the studios at short notice as that are on the market at present. and when they became disengaged? and a few points about the three I had not long to wait. Within most popular types will not be out a few minutes the names of my of place. The three types referred companion and myself were called to are the valve, the copper oxide, out and we began a round trip of and the electrolytic. The valve rectifier has the advantagea that We first visited
the most up-to-under proper conditions the retifica- date studio, a room of moderate tion ratio is very high, whilst alan
the studios.
The objection to this plan, which WILY raised chiefly by France, was that this arrange- ment did not grant the League the necessary. Independence. It reason that the
Wig
for this
clause about a time of crisis was added. The station will be oblig ed not to violate Swiss neutrality in any way.
INDIAN RADIO.
Move for Wireless Telephones.
It is understood that negotia- tions are proceeding between the Indian Radio Telegraph Company and the Government of India with a view to establishing a wireless telephone service between India and the United Kingdom.
While, it is understood, the ser- vice from the United Kingdom to India will be conducted by the British Post Ofice through Rugby, a reciprocal service from
India, if the present negotiations are successful, will be operated by the Indian Radio Telegraph Company,
+
The necessary. arrangements, including the installation of special transmitters, are not like. ly to occupy more than three months.--Allahabad Pioneer.
size containing a grand piano and a single-valve rectifier unit is POWER OR PENTODE.
capable of operating, under quite high voltages.
a microphone, about ten feet apart They had been nicely adjusted, our guide told us, so as to obtain the
The principal disadvantages of best effect. The bass notes of the the valve rectifier are fratly its piano are, of course, more resonant liability to damage and its limited than the treble and the piano working life; and, secondly, though, Was 80 arranged that. the by means, so important, the treble notes were nester the energy consumption in the heated microphone.
Alament. Although this type of rectifier is very much used, it is not used as much as it ought to be. This type gives excellent rectification and there is a security and stendi- ness about valve rectification, which is very often lacking in other types of rectifiers.
-
The microphone was covered with a hood which is only removed for the enlightenment of visitors, or for the examination of the B.B.C. engineers. 'It was taken off for our benefit, and, disclosed a circular instrument, about four inches in diameter, suspended from thu
A great deal has been sald and written about the five electrode valve commonly known as the "pentode," but there still seems to exist a con- siderable amount of doubt na to to the true usefulness of this par- ticular type of valve.
The whole trouble is that it is quite unlike any other type of valve and so there is no precedent' to guide the average constructor. not judge things from his expert ences of the ordinary super-power output valve.
He can
The oxide rectifier has gained The whole problem is wrapped up framework of a pedestal... The popularity during the past year or in the extraordinarily high im- cover is used to keep the microphone two mainly owing to its robust con- pedance of the pentode compared Irce from dust and to prevent struction and its freedom from any with that of the usual output valve. damage. •
need for attention. The exide The average output valve has an! As to the room itself, it was rectifier is well adapted for main Impedance of about 5,000 ohms, but pleasantly decorated with a sort of units where one of the principal ob the pentode valve has an impedance: coloured lacquer finish. The walls, fecta in view is to use components of anything between 50,000. and calling, and floor were padded with which can be boxed up and do not 60,000 ohms. It is abvious, then, asbestos, but a pleasing marbled need subsequently to be "got at.”. that when using 靄 pen- wallpaper concealed the padding For this reason the oxide rectifier, tode the electrical properties from view. The object of the both in the high-tension and low-of the output circuit of padding is to reduce the tension models, has become etan the receiver are going to be very
sounds.
#11
you a
Unable to support her baby, the Children And Sweets. volume and frequency of the dardised by several manufacturers different from those when one is ceho, and so prevent over of main units and charging devices. using an ordinary output, valve. lapping
different of
A point with regard to rectifiers For instance, if you take an ordinary Over-indulgence in sweets, spells Of windows there was no sign. The which is sometimes overlooked is the
valve super-power
having a disordered stomach in children room le ventilated by pumps, which features required in a rectifier which Impedance of somewhere about 8,000 end adults alike. children this may be speedily coun- one for letting in the filtered air and those in one which is to be used loud speaker, you get certain In the case of are Hidden in the ceiling: there is in to be used for a mains unit and ohms, and use it with any particular teracted by Baby's Own Tablets another for drawing off the stale merely for charging purposes. It results; an absolutely harmless yet super-alr
certain responso may be said that within fairly wide curve which gives latively efficient. remedy for The Studio for Privileged Visitors, limits almost any rectifying device certain character
of repro- stomach and intestinal disorders in Some of the studios have win is suitable for battery charging beduction. You may or may not the very young.
dows. These are normally cover.
cause the actual waveform of the like it,"dependant upon your taste) ed with interlocking panels but rectified current is of little or no im and the kind of loud speaker em are opened to let in the fresh air portance. Although this statement ployed but use a pentode valve în whenever opportunity allows. There should not be taken too broadly, it the place of that ordinary valve; are small windows on the Inside of is nevertheless, in a general way, and the results are likely to be very. some of this studios. These are for correct
different (nly prompted by the hopa
observation purposes and are used When we come to a rectifier for
On the other hand you are meat of obtaining a pension from not only remedy infantile indiges by the engineer during rehearsals use in a mains unit or in à mains- likely robbed of the bass, and with the now wealthy daughter. She tion, constipation and colic, but Every Item is rehearsed before it is operated receiver, however, the the average speaker it is not un- began to doubt whether the woman they promptly check diarrhoea, re-broadcast. For this purpose it is wave-form of the rectified current likely that the treble will pre- was in fact her parentuce feverishness, allay teething listened to on the telephones of the becomes a very important point to dominate to a rather unpleasant de Antoinette, however, continued to Palhe, relieve croup and colds, B.B.C. and relayed when astie consider. The less pronounced the gree: We are assuming, of course, assert her claim.
expel worms. Or chemists every factory,
irregularities in this wave-form the that the pentode valve is being used general's wife is now bring where, or 60 cents the vial, post I was shown small, well easier it in to smooth out there dhectly in the place of the ordinary ing a sult to obtain the cancellation free from Dr. Williams Medicina padded room, entered through irregularities in the subsequent valve, and without any alternation of the recognition of materalt Co., 60, Klangse Road, Shanghai, double doors which e usad smoothing circuit
to the output cfrcuit.
This woman legally recognised, Adrienne who soon realised that. thia-recognition
The
WAN
Baby's Own
Tablets
THE
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