1932-01-12 — Page 11

TUESDAY, JANUARY 12, 1932.

BUSINESS DIRECTORY

ATTRACTIVE TAILORING

The Latent in Gentlemen's Outfitting

AT PRICES TO SUIT ANY PURSE PERFECT FIT

AND

RELIABLE SUITINGS.

WING HING CO.

Gentlemen's Outfitters

64, Queen's Rd. C. Tel. 21417.

Very Nice Woollen Materiala

For

Making Ladies' DRESSES

&

OVERCOATS

Also

FURS &

SILK HOSIERY Expert Tailoring

Department.

LEE MOW

Chinese Silk Hosiery Store No. 1, D'Aguilar Street

DENTISTS.

HARRY FONG, Dentist,

ist door, No. 74, Queen's Road

Central. Tel. 21255.

TANG YUK, Dentist. Successors to

the late SIEN TING, 14, D'Aguilar Street.

TERMS VERY MODERATE Consultation Free.

ENGINEERS & SHIPBUILDERS.

W. S. BAILEY & CO., LTD.

Kowloon Bay.

Now Work & Repairs. Call Flag “L” Sole Agents for Kelvin Motors.

FOR SALE.

COLLECTION OF POSTAGE

STAMPS.

HAIR DRESSERS.

LEE YEE,

Ladies' and Gentlemen's Hair Dressers & Booksellers.

No. 12, D'Aguilar Street. (opposite Queen's Theatre),

OPTICIANS.

THE HONG KONG OPTICAL COMPANY,

'Phone 22232.

53, Queen's Road Central.

SHOES.

Fair

Black or Brown

Shoes from $6.00. Black Browa Boots from $8.00. Children's Bosts or Shoes from $2.00.

Best styles, most complete stock of all sizes. Repairing a speciality. WONG SIU WOON

21. Pottinger SL Phone 21474.

SPORTING GOODS.

ATHLETIC GOODS

AT

THE CHINA MAIL.

RADIO TOPICS

THE VALVES IN YOUR

SET

IT PAYS TO LOOK AFTER THEM

A wireless correspondent to a Malayan newspaper emphasises the necessity of looking after the valves in a wireless set. He also says, you should never run your set with the Grid-Blas plugs out.

awful distortion and

After only a few weeks of this use one day it exploded, due, no doubt, to a weakening of the glass caused by the excessivo hent and that was the end of that valve.

and that is what happened to the pentodes in my case. I now it fuses in the various h.t. leads when I use pentodes..

So if you want to get the best out of your valves, treat them properly. Do not give them too much h.t.; keep to the maker's specification.

Flying Spot Pick-up. Television station WSXK of About a week before this hap the Jenkins Laboratories at pened the valve had begun to Washington, D.C., was installed get soft, and the plate current a flying spot pick-up in anticipa. was gradually going up and up tion of going on the air with while the valve was in use, so direct pick-up by camera this that it would not have been long, autumn. Until the present the in any case, before the emission Washington station has broad- would have reined, and the valve cast motion pictures only, lack would have been of no furthering the equipment for direct

pick-up. Internal Breakdown.

With the co-operation of prominent groups in both Washington and Baltimore, Maryland, the station plans to offer a series of interesting pro- grammes, and is now getting ready for the inauguration of this

use.

I have just heard of the case may say that I recently lost a of a keen wireless enthusiast really good large six-volt super-

In the case of the pentode, such who went away for a few days' power vave simply because it careless treatment is even more holiday leaving his set, quite a was run for half an hour with likely to be fatal, for I have ruin good four-valver, in the hands of the grid-bins plug out. The ed several of these five-electrode the family to be used as they emission of that valve, when valves by giving them too much wished. When he came back, he properly biased with proper h.t., ht found he was getting the most had dropped from 35 to 20 mil- The electrodes have to be so!

that no liamps. It was a really big| thing he could do would clear it valve, as you may imagine; but, close together that too much h.t. is liable to cause a breakdown of course, is now totally useless. between them, with fatal results; So in desperation he asked So be kind to your valves, and me to go round and have a look. whenever you change your grid- spent some time over the set, bias voltage, take your b.t., and eventually came to the con-plug out firal. Never have a clusion that the valves had lost grid-blas plug out when the b.t. their emission; so we tested plug is in. them with a miilliammeter, and

up.

A Very Short Life, found that that was really what And while discussing the had taken place.

grid-biasing of valves, it may be As far as we could see, there just as well to remember that was no reason why they should too much h.t. may have the same have gone in his absence, but in- effect as too little g.b. I recent quiries among the family elucid-ly lost a very good valve through ated the fact that the day after running it at an h.t. voltage he went away the set was going greatly in excess of the maxi- quite well at the beginning of mum recommended by the mak- THE LIANG YOU CO. the evening, but not long after-ers.

True, I expected the valve to wards results began to get dis-

have a very short life, and was torted.

Then it was that one of the running it from the point of members of the family noticed a view of testing the absolute little red plug from one of the maximum apparently safe out- batteries hanging out, apparent put which that valve would give. ly doing nothing; and so they It was working excellently on tucked that into the battery about 850 volts h.t., instead of where they thought it ought to the recommended 200, and, al- Ebe, and the distortion, instead of though it got very, very hot, the

being better, was worse.

70, Queen's Road Central.

TYPEWRITER DEALERS

T Y

+

L

HOP SING & CO.

A

N

I

N

G

Tel. 21420 28, Pottinger 8t CANTON-116, Sun Kee Sai Rd.

R

Mounted in Books containing Both Mint and Used Stamps.

1,000 Stamps, All Different for $8

1,500

do.

2,000

do.

3,000

do.

4,000

do.

75

5,000

do.

100

10,000

do.

800

FULL SATISFACTION

GUARANTEED.

GRACA & CO.,

Dealers in Philatelic Goods, Pictorial Postcards,

គ្គទី៨២៩២

Garden Seeds, Toys, &e. No. 10, WYNDHAM STREET, P.O. Box No. 620. HONG KONG

(O

Job Printing

REASONABLE

PRICES

THE NEWSPAPER ENTERPRISE LTD.

CHINA MAS), B556. • BE WYNDHAM ST.

TYPE also in

"PART OF THE PICTURE"

BEAUTIFUL

PRINTING -

YOUR. business folders,

announcements and printing of all sorts will be more resulsful if rýpo graphically more expreside of the nature of your business.

We have not only the standard types but alto a dafiery of free and sketchy designs that will” rubllý indicate quilibel I}" hanli{"} work and craftsmanship,

THE NEWSPAPER ENTERPRISE LTD.

mdham St.

"A Lot of Black Plugs.” They thereupon put the little red plug "right up at one end of the battery," away from a "lot of black plugs" which they saw,

results left nothing to be desired. But, naturally, the valve had a very, very short life.

ADVICE YOU MAY NEED

the subject to be televised, which is then picked up by the banked photocells arranged to catch the light reflected from the subject.

In the camera method, which will teately be used, the sub. ject is luminated by flood light ing and the photocell is placed behind the canning disc. The television camera gives much greater flexibility and range, al- lowing the televisor to pick up a stage seven feet by seven feet, whereas the firing spot will only allow for a half-length pichire, or about three by three.

Following... the

example

of

America Finland is to have a chain of wireless stations. It is belleved that twelve of these will be sufficient to serve the country.

A little drop in business does not bother Charles Littlewood, * steeplejack (says Reuter from Dan ver, Massachusetts).

He fell 70ft. from the top of a service:

The flying spot method is that flagpole. At the hospital it was method of picking up television found he had received only minor in images in which the scanning | brúises, so he took the afterndon: disc projects a spot of light on off and repaired a roof.

HONG KONG

Butcher Meat.

Beat Sitlain ........

Bullock's Brainé ........

■

18

Tongue, fresh Tongue, ourned

Hand 鹼

24

#

*

14.

MARKET PRODUCE.

Jan. 5, June, Juzo,

1932. 1918. 1914.

Cie. Cts. Cts.

20 22

Chicken Capons, Email

Poultry.

Doves

Eggs, Hen (cooking);

Fowls, Hainan

Geono

Pigeons, Cantor.

H

Bolbow

Turkeys, Cock

Turkeys, Hen Enipe

1b.

Jan. 5, June, Judo, 1982. 1918, 1914.

*ench

Cta. Ct. Ct.

70 30 81

5828781

82 28 B0

45 22 21

per dog. 88

40.

SB PKKEDE EEŽEROMM

19

*********N$8 | = ||| |

22. 21

25.26

Ib. .76

24

84

48

24 24

sách gỗ

86

lb. 80

76

each 28

pair 2.40

each Eb

1.00

Abonds

Apples (California)

Bananas (bride's)

Fruite.

£ lb 1.20

85 ****

牛尾把

b.

84 24 18

• Prime Cut ..........

#

80 28 11

*

Corned

23 19

Capons, Larg

Boast

+

88 24

Duck

Breast

80 20 18

H

Boup

97

Steak

#

20 18 88 24 94

Eggs, Hen (fresh)

"

Steak Biricin ... Sacnagrod

46 36

80 .85

Fowls, Canton

20 20

per set 17

10

12

each 75

50 60

-

60

$1.20

$1.20

Hears

Ib.

24 18

14

Hump, Hal

20

18

oach 18 10 12

Phenant

Kidneys

15 10 18

Quail

Tall

19

27

Fartridges

Liver

24

13 14

"

Tripe

8 6 7

Calves' Head & Foot ..

#et $1.50 $1.00 $1.00

Hatton Chop

Ib.

44

20

Log

44 20

Shoulder

鑰

40

24

Saddle

鞍肉

44

· 80

M

"

Per set 4

1b. 18

1

30

15

20 20

Beach 18 10

Liebees, Dried

荔枝干 16. 1.00

15- 10

tb.

68

80

24

Oranges (Canton)

新侖症機

18

88 25 23

branges

#

14

#

40

и

44

60 10

26

21

Pears (Canton). .................. Peanuta

*

#

#

生

par set DO

70

Persimmons, Largs

***

M

each 18

7

Plantain

* *

15

12

10

Parilo. Blam

45 28 15

Mench

15

15. 25

25

22

80 20 18

Walnuts ....CITRI Grapes

80

80

38

28

22

and the distortion, though a little bit better, was still very bad;

One easily overlooked snag în | Pig's Chitlings and so they gave it up as a bad

Brains job.

short wave working is the use of If these We then saw at once what had metal panel brackets.

Feet happened.

Fry Evidently the posi- are placed too near the coils or tive grid-bias plug had been grid wiring the set may working without grid-biss and considerably in sensitivity and with the grids of all the l.f. valves general efficiency. "in the air."

loose

Head

Haart

Kidneys

Liter

Then they placed the grid-bias Among the common causes of Pork Chop plug in the battery, but in the weak reception are dirty contacts wrong position, so that all the at the aerial terminal and the valves were running with too aerial swithc, and soot or direct little grid-bias, or with a posl collecting on the insulators. tive blaa --we never knew which.

Finally they found the right| Any break in the earth wire, place, and put it in right at the even underground, will generally

*

Leg

Lölni

Fat or Lard

Sheep's Head & Feet..

Heart

Kidneys

Liver

41

19

end of the battery. But it was have serious results upon recep- Sucking Plex, to order too late; the valves had lost their tion. emission and were no longer of any use. When new valves were

* *

*

Sust, Beat

Kation

#

Intermittent signals clear Veal

purchased, of course, the set one moment and weak the next Sanaagin

went in good order.

Different Tappings.

#

-can generally. be traced to a coil, or valve fitting loosely in its

Now this, I thought, was suf-holder, or to a faulty flexible Barbel ficiently important to mention wire.

here, for although I am sure a

*

J

Bream

Cary

Catfab

Codisk

Craba Cattle Fish

Dab

BEBEEEEEEEEE***+###++

29 14

驗 繩

IPERPARK 1878 PARK BERLI

Carambola

•

金山粺業

24

燕山香蕉

B

#

12

椰

each 14. 10

14

Cocarruti

Lemons, Olina ............... # Lemons (American)

12 ME: 1b.

is ench 14

Brinjala, Green

# # 1b. *** Vegetables, &c.

lb. 52 16 24

tr

82 20 16

Artichokes Beans, Sprout

Long Best Root..

Bitter Squat

Fish

32

R

86 18 10

Rad

$6

16

27

86

12 9

*

Cabbage, Chinese

(Shanghai)

#

54 16 17 26 28 26 25 16 27

great number of you - I might A two-volt battery is fully Catton Fresh Water: say, perhaps, the majority of discharged when the voltage: you never run your sets with reading is 1.8. A four-volt bat the grid-bias plugs out, yet I ara tery is fully discharged when the just as sure there must be a lot voltage reading is 3,6, and a six- who take their grid-bias plugs volt accumulator when the volt- out to try different tappings age is 5.4. while searching for the best position without in any way The specific gravity of the cells Dai thinking what is happening to in an accumulator newly receiv-Dog P the valves.

ed from the charging station Cogerk Now, if you take an ordinary should be about 1.2. super-power valve, having, say,

*

*

W--Fresh. Wäber

Tallow

18 volts grid-blas, with 120 volta When the specific gravity of careups h.t., you will find that it is taking any of its, cells falls to 1.15 or adgton somewhere about 18 milliamps, thereabouts, the accumulator re possibly a little more, depending

quires recharging. upon the actual characteristics of the valve.

Hücrlőgy Halbuk

13 | Labena",

If revoltage or hydrometer

Lobate

Suppose you come to the con- readings show that one cell in a Lonch.. clusion that the grid-bias wants altering, that it is not quite four or six-volt battery is show enough, or a little too much, readings widely different you immediately pull out the from its fellow of fellows, this bias plug and search around to fact should be pointed out when

it is returned to the charging PARIS TAK pop it into another tapping. What happens? The grid of that station, so that It may receive per valve has lost ita negative poten- special treatment when rep tial, and immediately the resist charging. ance of the valve drops.

Oysters

Apart from spilling or leakage, pa Raising H.T. Voltage, a cărtain amount of the electro") In other words, it is, tant- amount to raising the hit. volete in an accumulator is lost by gassing, so that a supply of dis- nge, for the pull of the piste, tiled water should be kept on voltage on the electrons is in hand to make good this loss... creased many times, the electrons passagYELER

fly over and the plate current. Never let the little holes in goes up, say, to somewhere about the plug at the top of an sacen 40 to 60 milliamps. Not only mulater become stopped bad for the hot battery; but very there play bad indeed for the filament,

allowing, the

Just to how you how very] [20 vital this grid-blas business l

White

***

ERICU MARE FOR ME CEE LES PAS QUE TRE QUE QUE QUE SUE QUE SE SLIDE DE DE DE DE SE QUE SE QUE

"

Cane Shoots, bunsh

Cauliflowne (Largy)

(Medium)

(Brsal)

44 28

22 10 84 110 8 70 16

Carrota Celery, Chisen Chillies, Dried

52 10. 8

Hed

80 26 80

Gree

1.10 22

Garry Star, Engi

24 40 80

82

18

Cucumbers Gartie

28

18

Ginger, Young

80 18 16.

80

18

Horseradish, Sha

Indian Corn

46

21

Lettuce

20

80

18

-48

123

25

46

Water: Chisti

Mushrooms,

Ofrom

adioda, Bombay

Potato

26. 10

*800 30 810

2010

55 88 20.

1:55

Grom

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བ

སྟ ། །

བྷ⪜|ཀཱཝཱ⌘* །

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a

14

10

12

each 12

lb.

8

12

B

osch 36

80

20 6

Ib. B

.5

16 .10 13

14 10

8