azdi - lamp tech

LAMP BUSINESS GUIDE.

,.

AZDILAMPS

Yfu /Va/@rr" tofM@\r/

PRICES APPLY ONLY IN GT. BRITAIN & NORTHERN IRELAND

L6rt SEPTEMIER I93C

Whyyou should sell MAA)ALarnps

(l) MAZDA L/IMPS are the product

of the great scientific skill and patient

experimental work of the BTHMazda l-amp Research Laboratories

in Rugby, England.

Q) MAZDA LAMPS for general

lighting service have the wonderfulMazda Non-Sag Filament, which

ensures maintenance of candle'power

and uniform service throughout life.

(3) IIIAZDA IJIMPS are contained inattractive cartons which facilitate

rtocking and handling. The cartons

are eminently suitable for display

and protect the lamps in transit.

(4) MAZDA IAMPS are mqde from

materials produced within the British

Empire.

Th"y stay brishter longer

Page.

rrilIililt1ilililililIIltIiltItililtIIillilltililil1r

CONTENTSMazda Service DepotaExtra CharsesPearl Mazdi and BTH Tvpe " B "Gasfilled and Vacuum Cliar and Tvpe " O " (Opal)C.otour Spraved, Natural Colour and DayliehtDual-Purposi, Gotbic, Newel and l.onslite (Opal)Candle and TubularNeon, Cruciform and BTH CarbonSisn and Soecial DecorationSriitchboari Indicator, Traction' and Mazda-Vite

Mazda Decoration Lights

Mazda Light Tubes and Holders

234567I9

t0ill2t3l4tom2t))23242526to29303lto343536to39404t4243to4546to5t5253td64

Mercra

Mdrcra FluorescentMercra Ultra-VioletSodra

]r.i"*o,J

,ro,o Flood, Photo Pearl and Aircraft

]*** Gr BulbsJ

Bu, *d Cy.l"

]*o,o, Gr Lishting InformationJ

BTH Hundlu-p TransformerFlashlight and Miners'BTH Ught Meter

]r.o'o oo,ifDi*ensioned

Lamp Outlines

' Con""riion Table (m/m into inclies)

]Dir-rrnt Tubl",)

ilililililililillililililililililillilfi llllllllllllll

USE ELECTRIC LAMPS'-I MAZDA SERVICE DEPOTS

LONDON . Crown Hourc, Aldwycb' W.C.zTelephone: Tempte Bar 8040. Telegramr; Artoroidal Ertrand, London

TRADE COUNTERS AND STORES:Crown House, Aldwvch, W.C.Z. - Temple Bar 1343

3-7, Wenlock Rod, Ciw Road, N.l Clerkenwell 2822

BELFASTBIRMINGHAMBLACKBURN

12 Alfred Stret ..l0 and I I Snow Hill" Old Bank,"

King Street4 and 5 Cedar Square ..7 Haviland Road, Boscombe

7 MillereateI 19 Victoria Street58 King Street

Jotham's Buildings, 26-27 St,Mary Street

l7 Grosvenor Street5 BouehtonCulver Street54 Selsdon Rmd.Mazda House, 25 Suftolk StreetI 7 Baltic Street130 George Street53 Pitt SteetBedford House, Bed(ord Road ,.17 Dorset Place

7 Brook Street2 Prince's Dock Chambers,

Prince's Dock Street .,46 Wellington Street . .

5 Campbell Street27-29 Stanley Street ,.King's House, 42 King St. West

Po*t Office Buildings, MartonRoad

Ellison Buildings, Ellison Placc .,

College StreetGmbridge House, 26 TomblandKing's Place, Stoney Street90, St. .Aldates

Farley Chambers, Ststion Road.Millbev ..

54, St. Vincent Strect ..Mazda Buildings, Campo I:ne . ,

Belfart 4521Ccntral 8301

Old Bank Street,.. Blackburn 7093

BLACKPOOLBOURNEMOUTHBRADFORDBRISTOL ,. ..CAMBRIDGECARDIFF .. ..

CHELTENFIAM ..CHESTER..COLCHESTER ..CROYDON, SouthDUBLIN .. ..DUNDEE.. ,.EDINBURGHGLASGOWGUILDFORDHASTINGSHUDDERSFIELDHULL

LEEDSLEICESTERLIVERPOOLMANCHESTERMIDDLES-

BROUGTINEWCASTLE-

ON-TYNENORTHAMPTONNORWICHNOTTINGHAM..OXFORDPLYMOUTH

PORTSMOUTI.I ..SHEFFIELD

Blackpol 2853

Boscombc 2038

Bradford 1205

Bristol 201 I I

Cambridee 54170

Carcllfr 5258Cheltenham 2776Chester 2746Colchester 2843

Croydon 5633D$lim21379Dundee 5600Edinbureh 30896

Central 4331

Guildford 2788Hestings 2734Huddenfreld 3291

Hdt3624tLeeds 2801 I

Leicester 2281 I

Bank 5700

Blackfriars 269116

Middlesbroueh2476

Ncwestlc 25040

Northampton 2981

Norwich 2541

Nottingham 2061

Ox{ord 41 70

Plymouth 4837Portmouth 4383

Sheficld 23086SOUTHAMPTON 6 West Strect . . Southampton 6209STOKE-ON- King's Chambers, Kingsway . . Stole-on-Trcnt

TRENT 48768S'fi/ANSEA .. Mazda House, 7 Melbourne Place Swaosq 2l5lTREFOREST .. Treforest Tradirrg Est{te,

nr. Pontypridd.WATFORD .. Bridle Path, Vatford Junction .. Vat{ord 5885

Woths:RUGBY, WILLESDEN, COVENTRY,. BIRMINCHAM, CHESTERFIELD

)

THEY STAY BRIGHTER LONGER

EXTRA CHARGES--Croups I and II

Gasfillcd

Extn

Vecuum CrrhonVariation

GROUP T

dcapt

l0o,/o

6d. cach

l/- each

Ion

eacheach

?d.td.

2d. ach 2d. ach

wtts

Caps.For S.B.C., S.E.S., and S.C.C.in placc of A.S.B.C. or A.S.C.C.Arerion lntcmcdiatc ScrcwCapsFor G.E.S,. in plaq of E.S..and B,C, or uia oerso includingG.E.S. chmo Cao for 1000 and1500 mtt Gcncnl LishtingScrvicc lammMedium Prc-feus Crp forProicctor lamprGolialh Prc-lms Qp forProieror lamusFor all othcr rpccial ops up tomd includiro 100 wattr

No extra

6d. ach

I '- ach

l/- ech

216 ach

| /- ach

Variation Extra

FROSTING:For outsidc froting or rhadow ctchingNOTE : No lamq oJ a lupe ot rctine uhidt h oilcd iridetrcsled n k ruoplied whollu utsille lrcilclbal oailiallualsille ltosld, a h wpOlid, Headlizhts cin E shadoi.rdGd iBid. ot alide-

COLOURING:For ruperfcial olouring ot nmishing, includins rpraying

SILVERINCFILAMENTST

For U Shapc or Coilcd-Coil Filamcnk on Hadlampr ..

(to L 6ttJ onlv't" lj'*/-' ""d ii

prie tabuhtionr)

ld. och

lf/oOn Aptliqlion

3d. ach

ld. oclrld. achlld. qch3d. och

No qtra4d. ach6d. ach

-

USE ELECTRIC LAMPS

PEANL MAZDA TIIMPS

Thc inside frorting difiusce tho light and preventr glac, whilethe amount of light obscured by the frosting is practically negligible.

fu the outside surfaces of thc bulbs are of smooth glasr, they are as

casy to clean as dear lamps,

Madein a rangc of seven rizes-|5,25, 40,60,75, l0(), and 150

watts, whicJr covers most normal lighting requirementc of industrial,

commercial, and domestic users.

I Supplied with Coiled-Coil Filaments.

BfiI TYPE "8" ("r'APl) TAMPS

BTH Type " B " Lamps are good qualitylamps, which, although notas efficient as Mazda Coiled-Coil Lamps, are very much superiorto many other low-priced lamps,

Wett!

254060

t00

4

Caprcnlulrrupplied

B.C.

Wrttr

t525406075

100r50

d.

lal6l7*l7*

1IIII3

,*

&30

25

Voltage

364646

60,70,80,

35,40,45,50,

55

65,75,85

d.

I122

50

2222

100, 105, ilo. il5,120, 125, 130,200,210,220, 230,240,

250,260

r. d,

2l2l2630

r. d.

2l2l2630

r. d.

2l2l2630

B.C.

Cap

1

ItI

006

THEY STAY, BRIGHTER LONGE'R

CI.EAR GASFILLED IJIMPS

I Supplied with Coiled-Gil Filamentc.

CTEAR VACTJT'M LIIMPS

l525

t The lrmpc qn be 6ttcd with Capr without qtrr chargc,

TYPE'O " LI\MPS (Opal-Gar6lled)

I Supplied with Coiled-Gil Filamots.

5

Wattg

Gprcgul-. ult

t5035.4,45,50,

55

65,75,85

II

100,I rt.

r. .d,232S3357I

12l5l9

0I6363

r, d,2329335090

106133166,:o

c. d.1819xl9*20x23*365690

11 6150160t26

L

.t

2

I6I

l1t4l91926

44

l9*l9r20*23*3656901l 61501602:2 6

Voltagc

220,250,

r. d.

Wrttr

25406075

100tt02W300500750

t000tr00

E.S.

ql0

tifrlU

25&30

L223

I3

B.C.

t

)

t.22

t50

Voltaca

t.II 8

t00, r05, ilo,fi5, t20,125,

t30

r. d.1818

Caprcguhrlvrupplicd

25&30

35,40,45,50,

55

60,65,70,75,80,85

t00. 105, I 10,

|5,120,125,130

Wattr

t52540@75

100t502W300500

B.C.

E.S.

G-E.S.

lz27t670910

12 lll5g

l9I l0*1 l0*22*24*4066

103130

!. d,

24242103_6 6

30606

223

bl0t2t518

398I6

58

1013t7

410

s. d. !. d. r. d.s. d,24242t036

10*10*'2*4*0630

t50

It

II22I6

10

USE ELECTRIC LAMPS

COU)IIR SPMTED UIMPSGrru,

NATT'RAL COLOTJR L/\MPS

DAYUGHT LAMPS

-

Availeblo in

Wrttr

t5+25406075

t00

wrtl

6

G.E.S.

E.S.

B.C.

Cufillcd

l lot

rd.

19I l0*I l0*22*24*{066

103130

25 &30

Vacuum

323

t.2

l.

2WZt(21{t.

Gprcgularlyrupplicd

Vrttr

t5254060t>

t@t502N300f500I750r

l-eftJt10*l0*2*4*0630I

II2246

l0l3

r. d.Vacuum

r, d.

67*7*6*9*

22233

r. d.r. d.

23:

.. d,

2324*24*30x33*

1,. JItVscuumGufillcd

,:2t.

Vacuum

CbloRcd, Ruby, r84;wi-j5j:0,240,250,2

C-fill.d

Crprcguhrlyrupplicd

r. d.23*23*33*49lt6

Voltagq

B.C.

G.E.S.

40@

t00t50300

Wattr Gp


DUAL'PURPOSE LAMP(oPAL)

This opal lamp has two filaments, either of which can be operatedat will. It

- is specially recommended for use in Hospitals,Nursing Flomes, Hotels, and Nurseries.

The changc from one Gldment to the other is eflected by means ofa cord-operated 3witch.

The Mazda Dual-Purpose Lomp can be used on either alternatingor dircct current.

Appror,Wattr

4and25

Voltr

00, t05, ilo, il520,125,130,2N,10,220 230,240,

2r0,2&

II)

Gp Prio

r. d.

{3B.C.

GOTHIC LAMP (Vacu.-;ruIME AND PARCHMEI{T SPRAYED

'lffgttr

25

Cap 270,

!.4

l.

4B.C. or E.S.

S.B,G or S.E.S. Gpr en bo rupplird * 2d. qch ctra.

NEWEL LAMP (Vacuum)FIITME AND PARCIIMENT SPRAYED

S'B.C' q S'E.S. Gpr qn bc rupplicd at 2d. ech qtra.

LONGTITE LAMPS (Opal-Vacuum)

40

Wdr.I vol*."l----m, z]d:m:N:N-I 250,2ffi.r-lru.T| 4e

Gp

B.C. or E.S.

Wrttt

4060

Gp

8.C.,E.S. orc.c.

t50

Crlour

{r. d.76r. d,50 r. d.56

r. d.80I

USE ELECTRIC LAMPS

CANDLE 11\1!lP$-llgsurrn & Gasfilled

qtn.Onngo,

SINGTT-ENDED TT'BT'IJIR IJIMPS

S,C.C,, 8.S.. aod CC. Caps {or 25 watts onln 3d. ach crtn.

MAZDAI^ITE TUBTJUR LI\MPS

r 25 mlmxZMmlmonlv. 38 m/mx 308m/m," Clip Canta"t " Crpr, 3d, och ctra for Double

I

Cl"ar Spraved 6/4.

40{5,t650

3

3

33

0

I6

11

{0t6{650

6

1t3

0

3

3

I4

(J

#fr-aQuca

s.OUf.rted.s.our-

'ved.

50Watti

Voltago

25

40

25

40

383n10:

303{36

5236t740

t50I50

Gprecul6rlvrupplied

r. d.46

rd.303686

r. d,{0

r. d.36

8.C., S.B.C.,or S.E.S.

B.c"E.S., B.C.

or C.C.

36

2530

40

25

COLOUR-SPRAYED

CLEAR

WattsVoltago

r. d,303666

cc {

t,44

CIUClar

Voltaga

t.4

ilColou SpnycdCalour Sproyed

CapWstte

30 I*60 Iln0

Endcd Tubular hmpr,


NEON LAMPS

TYPE "N" COR MGITT I,JGHTS)

Vattr csp

5 or E.S.

Voltagcr

rclnn, 2ffi1260

d.I

Voltaco

r00/r30 2n1260

CRUCIFORM IAMPThe Mazda " Cruciform " Lamp is the ideal illuminant for the

home shrine. The filament is in the form of a crucifix which

glows with a soft rosy light. At night the effect is very appealing

and significant, This attractive little lamp uses only one unit ofelectricity in 200 hours, is absolutely safe, produces neither smell

nor smoke, and requires no attention of any kind.

Volu Wattr

twlt3O 2ffi12ffi 5

Gp Prico

B.C. or E.S.l.

3

BTH CARBON TAMPS

Gp

L2

Priod.6

B.C., E.S.,S.B.C. or S.E.S.

lur, tu),t1

Vluimumbul lVattr

0, il5, I20,D0--T;*

i- d.

zw,Zto,225(-ili;ffi;

Toal Watt*

I616l9

37.074.053.0

l619

Sizo oIbmp inBritishcP.

t6

Gprcgularlyrupplicd

I';l 1l Z?8I E$ {l tzt.o

9

USE ELECTRIC LAMPS-r

SIGN LI\MPS

15 uil &n

qtro. ,mrsl0d,SERIES BURNING FITTED WITH SHORT-CIRCUMNG DEVICE

thePink,

SPECIAL DECORATION TYPE IJIMP.S- For seasonal and temporary outdoor and indoor decorative

illuminations.Supplied inGreen, Red,

standard colours: BIue, Yellow, Orange,Ivory and White.

rd.

28

r. d.

181S

a. d,

2328

a. d.

2328

rd.2023

ClorSprayed

!,.5,B.c'S.E.S

orsRc

t50

I00. t05.ilo. ili,t20, 125,

t)0

fi,65.70,75,80.85.

50BulbGp

36

22

6I2

r.dr. d.l0l8tg2023

r. d,2623262326

r. d.262326262S

g. d.202023202t

ClerClor

Spraycdt

ClarSprayed

E.S.ot

B.C.

PYGMY BULB

t0

l5

z0

STANDARD BULB

t5

l,

25&30

Voluge

L

II

II

1Bl92225

SprayedNsmralColour

t. d.l5 r. d.l8

c. d.l3s.E.s.7

Volte

l4

CluCrpWottc

l"'1iJ

5

7

E.S.or

B.C.

It 2'

t5

II

I 1i

It

0tr

1r+

Prie achr. d.

GprreslarlySupplied

W.ttt

2M,210 220,230,240, 250,

260

l4(*viea burningfitted with shorrcircuiting device)

Voltago

only.

l0

rprayed


SWITCHBOARD INDICATOR

Thir lamp is rimilar in cvery repcct to ttc 15 ntt Pygmy Sign [rmp, butig 6ttcd with r rqirtrm in rhc bulb.

TRACTION LIIMPS (Scrie Bunirg)Garfilled Vacuun

Wattr A.pl.

Caps rcguldy rupplicd B.C. c E.S.

IRACTION (Gasfilled) WITII FUSIBI.E CUTOT T

Wattr

4n60

Voltaga

40 and 50

Pol Dtylight

Cap recularlv rupplicd E,S.

ITIAZDA-WIE LAMP (usrnrco)FOR THE UGHTING OF FLOWER BEDS, ROC(ERIES, ETG

Daription

Speciol bluo, insidc frqtcrl l20n/mdia., 210 m/n ovcrall.E.S, Gp, 6tted with asbetc ring in-aerted betwen the thred ond thc gLirt,

Volts

r00.t0t.l 10.u5,120,t25,t30,200,2t02m,2t0,240.

250,2@

Wattr Pris

" -e.

350500

q

I t0,t?J.,

Gp

L

t50

r. d.2C t., d

t

50

Voltager

A*pn.

t.I1

d.11

!.I

d.il

Pwl

d.4

!,2

Clw Opul

100, ilo, t20, t30

r, d.18

r. d,110

Wattr

4060

.35

.\? 3010

.27

.?t

t.II

One or morc Mazda-Vite lrmps in ruitablc rcfletorr, rupendcd orcr forerbed, rclerie, etc., will produce a brilliant aunshine cficct ind all 0owrr udIoliagc will !e slpm in their true colow!, Thc ultra-violct and infra-rcd rryrdso hrvc a beneficial cffct on groMh,

USE ELECTRIC LAMPS

IT{AZDA ..SNOW TYIITIE'' UGIITS

If Walt Disney had begun and ended his cinematic

career with the production of " Snow White and the

Seven Dwarfs," he would deserve for that alone the

enduring affection and gratitude of children the worldover. It is believed that this picture will break all

box-office records, before (if ever) it is consigned tothe limbo of forgotten films.

This story, written by Grimm and animated byWalt Disney, has now been illuminated by Mazda.The eight lively characters of this fairy drama have

been reproduced in charming action pictures on theshades of Mazda " Snow White " Lights-the mostattractive outfit of its kind ever produced.

Every child who sees one of these sets will want itand every parent who sees one will at once decide

that no home with children can possibly be com.plete without the added grace of Mazda " Snow

White " Lights.

200-260 Volts

"Snow White" Set fitted with atrrac-tively tinted translucent shades,and comprising fexible cord, lamp-holders, special combination plug-adaptor, berry bead device, andMazda [,amps.

l2-Lamp Set(with one spare lamp)

16l'

l2


MAZDA DECOMTION SETS

NOTE : The Mozilq Lqmps, ailabtots, plugs uil BeII E Stor shadq uql in MqdaDqorctin Liahk arc nuih in Englud. The otlrer qtngqqir ate nqde in Cuada ,

Voltager

20p1260 100/ 130

l6-lampSet

(withtwo

6parelamps)

s. d.

241-

l2-IampSot

(withone

sparelu-p)s. d,

t6l-

8-[rmpSet

(withonc

8parelamo)s. d.

rzls

l6-LampSet

(withtwo

spafelamps)r. d.

1e/6

l2-lampSet

s. d.

5/'

MAZDA MICKEY MOUSE LIGHTS

The most original lightingoutfit of modern times. Fittedwith attractively tinted trans-Iucent shades bearing actionpictures of Mickey Mousecharacters, and comprisingfexible cord, lampholders,special combination plug-adaptor and Mazda [.amps.Berry bead device enableseach lampholder to be separ-ately secured to branch ofChristmas tree . .

MAZDA BEIT-STAR LIGHTS

8-hmpSot

(withone

aparalamp)

r.d

16i6

ul- t4l6

Fitted with tinted translucentbells and stars and comprisingfexible cord, lampholders,special combination plug-adaptor, berry bead deviceand Mazda Lamps.

MAZDA FAIRY IJGHTS

t4ls

The range of popular "Fairy Lights"has been extended to include thenew l2Jamp set priced at 5f. MazdaFairyLights are ideal forthe festoon-ing of lounge, dining room, or hall,and, of course, for the lighting ofChristmas trees. It is a simple out-fit without shades, comprising fex-ible cord, lampholder adaptor, andcoloured Mazda Lamps. A novelberry bead device for securing thelamps to Christmas trees, etc,, is alsosupplied with the l6 and SJamp sets.

It

II{AZDA LIGHT TUBESARCHITECTTJRAI SERIES

Mazda Light Tubes.are su.ppJicd in_a number-of lengthsof straighttube, in curved sections of three dillerent radii, and-in right-ar;lesectiom.

In the home, theatres, dance halls, hotels, shops, etc., extensive use.c.an be made of JVlazda Light Tubes {or unr.raL anJ--atlractiveligh.ting effects. They_are also highly eflective f"r th";jluminutionof display windows and the outlining of advertising signs.

USE ELECTRIC LAMPS

-t

Muda Light Tubes of over in length cu only be supplied inalso b.

voltr.at

l9

colours :

colours:

respectivelt

Prier for otber lengtht end curvsc-availabtc on applicationt4

3633N0t00256n01304060 ){m

Volt gcr : 100, 105, I 10, I 15, 120, 125, ln,200, 210.220, 230, 240,250,2fi

I Ovcnll Lrth. Diametcr 40 m/m

Col.Sp.yd

STRAIGHT LENGTHS

t50254273n5

500

610915

1220

r. d,

160

2ts23s2

I66it8

CLJRVES-*, 1. or * CIRCLEIi

500 309

RICHT.ANGLE_CENTRE BEND

500 359

Col.oml

WhiteOpal

Nom.WatlrSprvd

Col.Col,Op.l

\VhitcOp"l

Nom.Wattr

Nom.imha

Dimcter, 30 m/m

r. d.

163

z2g2453it 6393

r. d.

1{9203

226296350

60

]'*)

t20t80240

r. d,

1l 6156t56170?.3 0276

r. d.8686t20

12016916tr8-62462tg

r. d.7676

r0610614 6*t{62tsr80210258

20n3035

r40{60t loo

t,ll0150

6t0t0lt2

20

2436,a

309?80t00n0230200{ f3im

500

72


IT{AZDA UGIIT TUBESDIMENSIONS IN MITUMETRES

OUTLIITES

6tA

I

5

|4I6 I

3

4

I 22Q

zq5

F-r. -.-.II to 5-Straisht Type. 6-l Curyed Type, 7-l Curved Tvpc.8-A Cwed Tvpe. 9-Right Angle Type.

All lvtezda Ught Tubq on bc rupplbd altcmtiveb with 30 or ,10 m/m dia, tu[o.

NOTE :-All dimcnsiou Sivcn uo rubiet to mulecturing toldsns

t5

lncbes mlm lncher m/m

'.ll1,50628&9{

10.{31t.03

3184244425005346t0

12.5216.6917.$t9.6921.0224.00

6368369t2|441220

CONVERSION TABLE

25.01:n.9t35.0t45.0{{8.00

2938

159227265

i:USE

-

ELECTRIC LAMPS

MAU)A UGI{T TUBES-aPH$rI SERIES

Mazda Alohabet Seria Licht Tuba arc rupplicd in two rizcs-llin' 1nd 20 in.leii"r". Ui"J fq ricn and lacio lettcring, thii provide q mort-1ovel and attraclivccfiect. In addition to *hite opol they qn bo rupplicd in vcllow, 8ren, orogc'oinL red- and flamo ooal.

12 INCH LETTERST

)zro8/6tzl.)rre o718

l0/6jnz3036

J2

4.2A.1

)r 068/6tzl-

150

l tt

18071810/6Iuu

2036

II

A.lA.4

)"08/6gt6

tzt.

7187t6

r0/8I*m3036

ItIKn,i

18928lS2sl.5t5lIflo',

t20tzt.106t0l6%t6IA.4

)rrz e8/6t2l-)r 86716

10/6ln2036

I2

A.lA.4

)rre e8/8sol-)rrr o7la

26lt)m2060

IIS*l'

)', 08/8tzl.)r 60z16

r0/6l,u2036

,,

Illu)rrz e8/6

tzl.)rn o7t8l0/6)r20

36tISu

j,, 0tzl.30/-)rre er0/8

2813)r3663

II

4.44.25

110 03o/.16326lg6363I$l o,,

)' 08t2!-2819289)'o'

r0/6zil.251.)'''

363645

IIIillt

I, 038/6tzt.28lS), 30716

10/6251,)'*

2036/A

IIIill ll,

TotalI r.d.

(nl.OpulPrio*ch

Total

I s.d.

Op"lPriocach

Wattr

Setionda

CodoNor.

l6


Total

I r,d.

(bl.opolPrieach

Toral

t, r. d.Section Total

Wattr OpalPrioech

CodoNor.

bq

E

111 I tzl. 116 036 108 10/6A.4 t

217 6251. 210 0 n192 45 90A,r4

tzl-28!S

t0/6t5l. )rrs oI

I3645 )u'

8/028tS23lS

)zoe

)"0716

25t.251- )'" '

A.4A.r5

A.lA.l3A.t4

203945

t04)8/0

l2l.28lS

93),716

r0/62Sl-

30),III

203645

t0tl210 0 1819 217 I78 231.39

A.t5

A.lA-4

A.l0

8/6tzl- )roeI

I3032 Iu, 716

10/0 ) 1804,24.3

33/9 I130 38/0 rfi 0I 8l

tzl' tt0z 72 10/6 11036

4.12

A.4

718r0/6 )rre o 8/6

tzl. l0jz22

3036 ]inz4.2

A.4

217 6261. 210 0 ws2 ?9 78

8/0?f.l9 )rrz r)se

7162sl. )rrz eI

Iz039

56)r8/6

tzl. 90)r2I

n36

96i 71610/8

ITTIR

T;,

U

\1"

\(

^7",

MAZDA UGIIT TUBESAIPHABET SERIES_U INCH I.ETTERSI

A.t2

A.lA.II

A.2A.4

Tw lomlholilqt src wutrcd ln afr ffi ol lcrra, HokIqt arc aol includal in

l7

USEE

ELECTRIC LAMPS

MAZ)A LIGITT TUBESATPHABET SERIES_Z(I INCH LET1ERS

CodeNos,

4.74.2?4.33

4.74.36

A.44.74.34

A.l94.20

A,I4.24,7

A.t4.24.7

A.tA. t7A.t9

4.24.7

Tw hnplnlilan atc rcqaircA lq u-ch rytion ol l"tti. ilo&at qrc not iachtdcd intlu atrooc brica.

37016/s218 0t4l62406044.7

53)r8i6

tclg20)r7!7

t4l6)ton60

II

4.24.7

73),tzi.18/616/9

10),ro/et6l.t4l6

r38)364260

III

2?0431.t17 637la8484I

A.4A.54.7

4.35

169t6/9t46tli66060I4,7

20)z8/8

1619)rro o716ula)'t

30fi

II

60)'816

ntg28!9)'" '

7162sl-i25i,

125i205t54

III

)'" '8/68,0

r6/9)1967,87,8

l4l6il0I

I2A3060

III

23)'8/88'6

r6/9)'" o7i67i6

l4i8140)

203060

I2I

)rt6i95r/0)zrs e

t4l6451-)'*60

108II

)zu ow!928S)zro o

251.251.) roo

5454

II

10i9301.38/g)'" u

lt1626t333/0

20ri60608t

III

)'

|ouu

76tzt-l6r938/0)""

t016t4t833/9

tnl36608t

III

ToulSetionTotal

f,,rd.

(-1.Or*lPrie

Total

f,, r. d.

OpolPriccoch

WaroI.ITTER

l8

THEY ST Y. BRIGHTER LONGERMAZDA LIGIIT TUBES

AIPTIABET SERILS_zo INCH LETTERf;

TotslS, s, d,

cbt.OpalPrice

Total

€ s.d.CodeNor.

'9 W!ttr

Toul

OpulPricccoch

\zn o4.7A.8

)I

6062 ) rez t4l6

t6l. 50lz16/918/6

38/9 31? 6A.?l a 78 156 33/9 3?6

)zrr oII

608t ) rar 1l16

33/9 )zoa t6/938/s

4.74.33

)r" t 8/634/638/9 )n"

A.t4.29A.3l

207278

170)716

30/,33/9

l7l)7!8

14l633i 9 )," , 8/6

l6/938/9 )'no

4.24.7A.33 8t

3060

3902 72 144 30/- 300 34i6A.30

)rn o r8i 6l8/6 )rrz o42

56 )oat6l.16/.

A.5A.6

3,Cl.30i - )roo 3{/6

34/6 90)rII

6969 )'t

1t3 6t20 1{i6 r90 r6/9

4.274.28

A.7 2 60

3?0240 r4l6 218 0 16/94.7 4 60

390ln 30/. 300 3464.26 2 66

|zzo)ee10/62sll )rre s tzl.

30/-A.4A.24

II

366)

t2!"161t

09jz3660 )tu 10/6

14/6 )rrs o8.44.7

aI

Tw lamlholdets are requircil lot uelt seclion ol lellet' Holdss sre not iacludcl in' the obooe Fies.NOfi :-Metal Moune {or all letters are ovailable. Partiolars o-n -aqolication'

s.l'i"'n! 2o iii*"ill'l-"i f*;h"iJ";':Typ"- "b-'-tob**d *itb Alphabet Serier

Light Tubs. lg

USE

-

ELECTRIC LAMPS

TAMPHOTDERS for MAZDA LIGIIT TUBES

Type "B" for Flat.sided Caps.

Single contact holder of unique design in black moulded compositionwith special ball clips at either side, both being fitted with lockingscrews which hold the lamp safely and securely in position withoutthe use of external wire clips.

PRICE

4l-PER PAIR

Type "C" for Peg Caps.(Patent No. 451773)

Black.moulded composition single contact holder, incorporatingspecial sliding locking device. Siigle fixing hold provided at actuajcap centre point, consisting of a loose sleeve which makes permanentyet non-rigid fixture. No attempt should be made to diive fixingscrew right home.

PRICE

3/6PER PAIR

Type "D" for Peg Caps(Patent No. 476577)

This ]r.older is of neater appearance than the usual rectanzular typeoJ holder and has a single'fixing hole. The lamp cap ir i"ur"dinthe holder by means of an inteinal projection *hi.lt ir forced intoposition by the ring on the outside of ihe holder. Where it is desiredto conceal the base of the holder, this ring can be used like an ordinaryshade ring to secure the holder in position. The holder is made inblack moulded composition.

PRICE

3l-PER PAIR

AII lampholders can be supplied colour spraged in ans stanilardcolour at M. per pair eilra.

20

Mercra lamps are mercury vapour electric discharge lamps'

and find theirprincipal applications in street lightins' foodlightine

and industrial lighting.

The lamp consists of two glass envelopes' the space between the

inn", unj outer envelope being for heat r'etention putposes' The

electrodes, which require no separate heating transformers' are

mounted one at each end of the inner tube and are heavily coated

to give a high electronic emission when incandescent'

A third elecrode situated close to one of the main electrodes and

connected to the mains through a series resistance serves to stimu'

late conduction at starting'

Each lamp reguires a choke in series with it, to control the current

purring, .in""ihe lamp has no electrical resistance of its own' and

ir, ,o-" cases certain other auxiliary equipment is desirable' such

J o. u "ond.nser

connected acroer the mains where power-factor

correction is required.

Full technical detailr will be supplied upon application'


MERCRA LAMPSFOR USE ON ALTERNATING CURRENT ONLY

250 and 400 wattg.

Dimetsions on Page 50.

2l

Vattr

250

400

Cap Voltogs Initiql LuminorOutput

Priesach

d,

6

E.

37

{0 0

G.E.S.

G.E.S.

t00/130zcf1260r00/1302001260

Lurens8,5009,000

16,000I 8,000

=:USEEI

ELECTRIC LAMPS

MERCRA LAMPSFOR USE ON ALTERNATING CURRENT ONLY

80 and 125 watre.

The new 80 watt and 125 watt lamps represent an addition to theoriginal well-known Mercra range, so that Mercra lamps arenow available in a range of wattages capable of meeting almost anysireet lighting, foodlighting or industrial lighting requirements.

The new lamps are designed to secure high efficiency combinedwith compact size, For the 6rst time a mercury vapour dischargelamp resembles in its genera! shape and size, the incandescentfilament lamps of normal practice, and the long tubular outer bulbdisappears to give place to a bulb similar in shape and dimension tothe 150 or 200 watt standard gasfilled bulb.

They operate on the same principle as the higher wattages describedoverleaf, but may be burnt in any position. A choke is requiredfor each lamp, and to prevent the possibility of accidental insertionof the lamp in sockets not provided with a choke, the bayonercap has three instead of the standard two pins.

If the circuit voltage is liable to fall below 200 volts, or if theweather is liable to be extremely cold at night, the use of an auto-transformer is recommended.

Pricecach

l.

3035

d.00

Lumens30405000

2ffi1260( 3-Pin )

1 B.c. i

Waus

80125

InitialLuminous

Output

A.C.Voltages

Gp.

Dimensiors on page 50.

Specially designed BTH L:nterns, Mazdalux Fittings and Flood-Iight Projectors are manufactured for use in coniunction withMercra l:mps. Write for latest lists,

{22

MERCRA FLUORESCENT LAMPSFoR usE *-*tffiffi CI',RRENr oNLY

The light from the ordinary mercury dischargc lamp, because of

the smull emission of red light, has a distorting effect upon certain

colours. It is impossible, for instance, to distinguish between

reds and various shades of brown. The Mercra Fluorescent l-amp

has been developed to meet requirements where some degree of

colour rendering is imPortant'

The mercury vapour discharge tube is mounted in an enlarged outer

iacket, the inn"i ,urfu"u of which is coated with powder which

h.ror"."". under ultra-violet radiation from the inner lamp' This

flrror"r""n, radiation provides colour correction, by adding both red

and middle blue light.

The electrical characteristics of this lamp are similar to the standard

400 watt Mercra Lamp in that it requires to be operated on alter-

nating current with a- standard choke and i{ desired, a condenser

for power factor correction.

These la-ps have been designed for industrial lighting' - They are

available in two shapes, pear-shaped (iso+hermal) and tubular'

r The iso-thermal is slightly more effrcient, but the tubular has been

designed for situations in which the greater diameter of the former

cannot be accommodated.

While the degree o[ colour correction does not render the light

"-itt"d {ro-1he lamp equivalent to daylight. it is nevertheless

much more pleasing than uncorrected mercury light'


Tvpe

Iso-thermal

Tubular

Wattg CapA.C.

Voltages

InitialLuminous

Output

Price

each

400

400

G.E.S.

G.E.S.

2W12.60

2N1260

Lumens

t1200

14800

r, d,550550

Dimensiotu n Fage 50

23

USEI

ELECTRIC LAMPS

MERCRA TIIMPWITH ULTRA.VIOLET FILTER BUIB

FOR USE ON AI.TERNATING CI,JRRENT ONLY

125 watts

This special lamp has been developed as a hiehlv efficient sourceof near ultra-violit radiation with a-minimum oi

"Libb licht. The

near ultra-violet radiation lying only just beyond the vioiet end ofthe visible spectrum, does- no1 calrse sunburning, but has manyinteresting^pioperties. The_most important of t[er" is its powerto excite fluorescence and phosphoreicence in many substances.

Where identification is almost impossible in visible light, manysuh-stances can be easily identified by m"un, of such fiorescence,Stqins o-n {abrics often become strikingly evident under this radia-tion and it is possible to distineuish-between apparentlv similarmaterials such as natural and artiGcial gems.

The lamp is of-th_e mercury vapour electric discharge type and withthe exception of the outer envelope, is similar to the 125 watt MercraI+mp, It consists of two envelopes, the outer one beine .uJ" oiUltra-Violet-filter glass, which cuts-ofi the ui.iUt" Ugti emissionalmost completely. lh" in_ner one is of a special grade oT transparentquartz. This miterial withstands adequafelv th; hish temDeratureof the.arc light source which is highly concentraied. Tt," "i.passes between two special activated eljctrodes, one of which isassocjated with an auxiliary electrode, in order to ensure reliable

Istartrng.

The lamp can be rrsed at any angle and operates on altemating currentwith a,correctly designed lho[e, and, lf desired, a cond"ir"r "u, Ibe used to improve the power factor.

If the circuit _voltage is liable to {all below 200 volts, or if theweather is liable to be extremely cold at night, the use of an auto-transformer is recommended.

5262M12603-pin, B.C.

Watts

12,

Pricooachs. d.

A.C.VoltagesGp

Dimensiors on page 50

24

SODRA LI|MPSFOR USE ON ALTERNATING CI'RRENT ONLY

50,65, 100, and l5l) watts

Sodra Iamps are sodium vapour electric discharge lamps primarily

degigned for street lighting purposes.

The Sodra lamp consists of two separate comPonents' an inner arc

tube bent into n " U " thup" uttd an outer envelope which is a double

walled vacuum flagk. At the end of its guaranteed life (25m hours)

only the arc tube as a rule need be replaced.

The electrodes which require no separate heating transformers arc

mounted one at each end of the inner " U " tube and are treated

to give a high clectronic emission when incandescent'

A special 2-pty glass is used for the arc tube. A thin sheet of sodium

resistant glase, which withstan& attack ftom sodium vapour at

high temperatures, is fused to the inner surface of a glass tube which

porrurr", the mechanical properties required by the arc tube as a

whole.

As with all discharge lamps some form of auxiliory gear is necessary

to limit and stabilize the current when the lamp is operated' For

this purpose a high reactance transformer is necessary.

The lisht grven by the Sodra lamp is monochromatic, and is orange-

yeilowln colour. It grvesa single tine spectrum as distinct-Jrom the

continuous spectrum of the tungsten lamp and the multi-line apcc'

trum of mercury vapour disc.harge lamps'

STANDARD CAP: B.C. (Gramid.


5065

t00t50

Dimedorc on pqge 51.

25

VattrwithFLcdJacLet

VitloutJacLct

Stan&rd A.CVolugatmllm,2w1260

r. d,fi050061 6786

r. d.326{00500650

r. d.35{8453 10696

USEE

ELECTRIC LAMPS

rJ\MPS (GASFTILED)CLASS AI_TT'BTJIJIR BT'I^B

For Cinema Proicctorr, Home Cinema Apparatus, Advertising Pro-jectors, Photo-enlarging Apparatus, etc. They can be broushi closeto the lens a1d by-qlre.use of-a short focus condenser, an unusuallylarge proportion of-light can be transmitted. For the home cinema,the introduction of the pre-focur cap has reduced focussing diffi-cultieg to a minimum. MAXIMITM LIF'E-100 hrr.

r. d.

-n5-o-

Pricc qch

0dI60000006606I9II00000066000II000

5010?235352l2t26n12t7n6

1l101616202525Ei35243?423030551110202430

Vert. Grid

Coiled-Gil

V"rt.'b;a.Giled-Coil

Vert."Crid.

Vert. GridGilcd-Gil.

BiplaneVert, Grid.

Biplane

V".t.'brid.Arc

BiplancCoiled-Coil

Stan&rdCep

G.E.S.

E.S.or G.E.S.E.S.

A.S.C.C.

E.S.A.S.C.C.

E.S.E.S.

PrefocusE.S. or C.E.S.

PrefocusPrcfocusC.E.S

A.S.C.C.E.S.E.S.

E.S. or G.E.S.G.E.S.

GE.S.E.S.E.S.

G.E.S.G.E.S.

E.S.

PrefocusE,S,E.S.E.S.

A.S.C.C.A,S.C.C.

E.S.

E.S.

G.E.S.Prefocus

Wattr

750c750ct002505009002N2505002@t00t80375t50

t00t00200t2ffi12r03003003oof400 st500500st750$t

t000t000r0005tt00too l

250 I

500 it(m I

II

{

l)artb

30

50

5260

75

I5

100,ll

0,

2N,210,220,230,240,250,

260

Typc o{FilamcntVoltr

Rating

%

PROIECTOR TAMPS (GASFIIIED)CIJISS Az_ROTJND BT'LB

These lamps are suitable for Stage Limes, Spotlishts, etc', and

sho"ld be tumed vertically with cap below. Slight variations inthe burning angle do not affect thc life' IAIXIMUM LIFE-300 boun.

CUISS A3_ROT'ND BT'IATlruse lamos are desisned for horizontal burning and are suitable

t*- Spmlicnrs. Su-cs LlMrs, MsolcAl Exlt"ttt.tlrtox Tunus,Anwnrrsrr.rc Pnoyecrons, rrc' MAXTMUM LIFE-300 hn

CTASS BI_ROUND BT]I3For the floodlighting of buildings, hoardingsr .signs, etc',-or..{orift""tr" u.Ja"""r',a Jpotlighting w-here length of life and reliability

"i. JJi.f l*r.rta"ce. -Gribt

used in-any positionexcept withcap uppermost at an angle ol 45" or less from-vertlftllnr

lre+oo rr".


Voltr

II)00,20,t0,

I t5,2M,240,

StandardCsp

Type ofFilament

Prio echs, d,

E.S.E.S.

G.E.S.cF.s.

Bunch gl72N30

0600

Typc ofFilamcnt

StandardCap

Vat, Grid 8l020n885276

1051020n

6I060600I06

Priccl.

200,210,220,210,240,250,

2ffi

20

" 100-l l0lt5

E.S. or S.B.C.E.S,E.S,

c.E.s.c.E.s.G.E.S.G.E.S.G.E.S,

E.S.E.S.

c.E.s.G.E.S.G.E.S,C E.S.G.E.S.

RatinqStandard

CspType olFilament

Pricc oachd.!.Volts Watir

10

50

t00, ll0.il5

200,210,220,230,240.250,

260

100100250t00250500

t000t500t00250500

1000t500

E,S.E.i).E.S.E.S.E.S.

G.E.S.G.E.S.G.E.S.

E.S.E.S,

G.E.S.G,E.S.G.E.S.

HorizontdlGrid'

l010ut102027385210202738Kq

I90I060600I00

27

USE

PROJECTOR TAMPS (crtfiucd)CLIISS B2._PEAR SHAPE BT'IA

Thesc lamps on bo burncd in any porition including ep up,

FLOODLIGIITING LAMPS. MAXIMUM UFE-800 hrr.

CIJTSS E_ROI'ND BT'IAEpidiascope

Suitable also for spotlight and shop window proiectora which haveto be rotat-ed through_ wide_angleJ. _ Can be used in any positionup to 45' from vertical cap downwards.

ELECTRIC LAMPS

MAXIMI M LIFE-100 hrr.

E hmpr en aho be supplicd with G.E.S. qp,

MAXIMI'M IJFE-TI)O

Prioechr. d.

?330

00

BunchBuncl

G.E.S.G.E.S.

Rating

Voltr Wattr

2W,n0,

2t0,240,260

220, I250,

1

Typc otFilamnt

StanrladGp

CUISS F (Below 20 voltr)Deeigned.fo.r the smaller _forma of home cinemaa, delicate surgicaland ophthalmic work. Intended primarily for use with battjier.

28

Fie ach

r. d.

%30

00

Tvpe olFihmnt

GridE.S.E.S.

Rating

Voltagc

100 to I 152N to 260 {

StlndudGp

Hor-Helix

Hor.Tung-sten Ribbon

Hor-helixTwin Pillar

Round

Tubular

Round

Tubulart

S.E.S.E.S.

E.S.E.S.

s.B.c.E.S.E.S.

c.E.s.

r. d.

00I996

203033

1032

Priorarh

3943

Typc ofFilamnt

Typo oIBulbGp

StEndard

46

66*

l2l2l2t2

Voltr

Ratins

inUat

vcrtiql


PROIECTOR LAMPS (casru.uo)CLASS G

ETCIIER L/IMPS FOR SOUND FILM APPARATUSMNIIMUM LIFE-100 hourr.

Thae lamps must bc bumt vertiolly ep dom

L/IMPS FOR FIIJ\{ STI]DIO SPOTIJGHTSTho onrbuction of tho filamcnt oI thcrc hich wattagc lampc cmbler thcm toburn undortho most mcting onditionr, and drcy aro ahsolutely rilcnt in opcntion.

& 2000 200 5000 & 10000 100 houn.

t There lappr are ln

BROADSIDE IJIMPS FOR FIIJI,T STUDIOS' Ttnr" bum at including ep LIFE-1000 hourr

tn

..LIM'' FILIIMENT TTIBTIUIR L/IMPSTLs bopr arr ruitablc {or vltiql or Lorirpntal buninr.

MAXIMT'M UFE 8(}O

Rating

WattsVoltr Aunpr.Cap

Pricr sach

s. d.

66s660767A

E.S.A.S.C.qA.S.C,C.A.S.C.C.A.S.C.C.

Rating

Voltr Wattr

t00, 105, lr0, il5,t20,125,130

200,2t0,220,230,240,250,260

t00, 105, I t0, I t5,120, 125, t30

StandardCap

Typc olFilamcnt

Prie qch

r. d.

n658585

115105300/tll0

Biport

or

Grid

Rutins

Voltr Wattr

StandcdGp

Trpc ofFilarent

Prio och

ar d.

n60

60

tm, r05. ll0, il5,J120,125, ln I

t5002500$

G.E.S,G.E.S.

I Sragscrod Jt Spirol t

t00.105, ll0. l15,120,125, t30. 2W, 210, 220,2n, 24.0, 250, 260

Rating

Voltr

tI

Prio oacrh

l.I/attr

250500

1000

d.

000

29

USE ELECTRIC LAMPS

PHOTO FTOOD

PHOTO PEARLGivinc a lilc oI approimtely lO hourr, which ir ruGcient lor hundrcdr o

qpo!ur6, thec lamp arc most gnomiql in urq

AIRCRAFT TAMPSLANDINC LIGHTS

All the Iqmps listcd hcre comply with Air Ministry regulationr,

t For S,B.C in plae of S,CC.. ld. qch sln.30

2

Il5

0

0

0

2

6

t0

BC.sith fue

E.S. with fus

G.E,S.

275

500

t000

100-125 and2W-2502M-260

100-130 and2W-260

Pric och

r. d.

Stanrlard GpLifc hrr,

VattrVoltr

Ratins

m0

Rating

Voltr VrttrStrnddd Cop

l0fl30 and2m-2fi 500 ES.

Prio qch

r. d.

Pricc ecb

r. d.

18n18n2!tI259

00600000

SinrlcD""ht"SinglcDoubloSinglcDoubloSingloDouhla

PrcfeuPrcfeuPrefaurRefqrPrclcurPrelaurPrcloorFcfmr

15t5t2t224t22424

Rating

Voltr

I9

t2l2t2ililil

FilrmtCapAmpc.

Pric ach

r. d.

3020t020t2l0l0

s.c.cs.c.c.s.c.c.s.c.c.

s.c.c..s.c.cM,E.S.

%Jb36%

66

'2.4

612"v"Fil

612"v"Fil

612t2

Tvpo

NAVICATION LIGHTS..

CABIN.'LIGHTS .."

codkPlr irNo'6lsH]BOARD LIG}TTS

INDICATOR LIGHTS ..

Gpt\0attrVoltr

Rating

T H EY STAY BRIGHTER LONGER

CAR BULBS-SIMPIIFIED SERIESListed on this and the next page are the bulbs in most frequent

demand for the vast maiority o{ cars used in this country' }or con-

ili;;;"';i ;;J";i'c, ";L 6i'lL is designuted bv a catalogue number

itJlir-f;;i* t"i'tt. ""'npt"rc

rungiof Mazia Gr Bulbs is given

on other Pages.

3l

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MAZDA REGT'LI\TION BTITBS

" U " Filament, Patent 352fiii!

Mazda Reculation Bulbs provide a flat beam complying withii'; t.;;;a;;i;s "'ilt"

tght for the-av-erase motorist.. TheSingle "U" Filament Bulb gives a safe light without drpprng

or -manioulation. The Double Filament Bulb provides tn

"ia;ii*G-"ti.-"tiue bea- covering thc trec tops, etc., foroccasioncl use at high spceds.

HEADUGTITS . REGI,JLATION 'U" Fil,ament

M 263646Mt7M18

HEADLIGIITS ' IREGL]LATION"-D.ubI"

M26 36ttV" Filament

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USE

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33

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USE MAZDA ELECTRIC LAMPS

CAR BT'LBS-COMPLETE MNGE-(Continued)

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t tS ;i; ei.. 50 ;7- "virsl length.' t 50 m/ri f,ia. 70 mlm wcrall lcngrh'

BT LBS for CYCLE SETS

NOTE,-Moy bc supplied with clor or utin etched bulbs as dqircd.

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USE ELECTRIC LAMPSlEr

BTII HAITTDLAMP TRANSFORMER

Tbc urc of hanillanpr comected dirccly to 200/260 vottmaiur can bc highly dangcrous and har lod to many fatalaccideutr from elcctric choclr.

fie BTH Handlamp Transformer climinates this risl completely,ar the output tcrminals, to which the flexible lamp lead ir connected,

,

arc at a potcntial of 12 volts only,

These Transformers, togethcr with a suitable handlamp, ehould bcused instead of mains-connected lamps in all ruch places a3 garages,workohops, tramway pits, boiler houser, brewcries, farmr, ctc., infact, wherever inrpection lamps are normally ueed, and cspcciallywhetc moirturc or damp prevails.

The Transformer is of the air-insulated type and ir providcd withseparate input and output windings, efie*ively inrulatcd from eachother. It ic cndosed in a stout metal caee, but ie not to beregarded as a portable appliance; for thig rearon lugs arc providcdfor fixing permanently to a wall or other flat rurface.

The input winding is connected to an cndored terminal board.A 3-core cablc should be uscd for the mainr connection, theearthed corc of which should bc brought back through the holein terminal cover and connected to the carth terminat in accordancewith thc inatructionr given with each transformer.

The output winding is provided with a 2-pin plug and aocketterminal, complete with 5-amp. furcr of tho replaccabte cartridgctype.

Primary (input) rating : 2N1260 voks,50 cydes.Secondary (output) ratingl 12 volta,36 wattr.Dimencions: 8* in. x 3f in. x 3f in.lamp to bc used in llandlamp: Mazda 12 volt, 36 watt

Hcadlight bulb, with S.B.C. Gp.

pRICES| r-BTH Handlamp Transformer with output plug

Rcduction Adaptor for converting B.C. holder in Hand.lamp to S.B.C. rl.

r5l-

40

THEY STAY. BRIGHTER LONGER

FLASHLIGHT TAMPS

MINERS' CAP AND HANDTAMP BI.'LBS

E.l4-E.14123 + 15 - S.E.S. E.l0: E.l0/13 - M.E.S.

953 : S.C.C BA.l5d/21 - S.B.C

(a) Mav bc rupplied I utcrmlly frosted without utra clurge,

G) Vith pip. (c) Scut bulb. (e) Round bulb.with E,l4 or 953 qp only, 1/11 each.

Volts

2.53.5

A-pr. Cbpregularly gupplied

M.E,S- Prices onapplication

0.20.3

Ratings

VoluStandard

Gp" Cls

2.02.02.5

2.5

2.5

25

2.5

0.850.850.5

1.0

1.0

r.0 1&l0.75)1.25

E.r0E.l4E.t0E.t095)Et4953

BA.t5d

B.io

I lOe

l828

III

I

For us in-

MTNES DEPARTMENT-Category I (8.S.S.535).

MINES DEPARTIiIENT Catogory 2

Prie uch

Pol

Crp Larnp

lland ,,

Hand ,,

Gp

Hand .,

Hand .,

t6l8

20

l0

l6

hmpGpCapCap

Gp

&p

Cap

CapCao

1_8

I 10o

1826

2.0

2.5t

2.5r

4.0

4.0f

4.0f

1.0

1,5

1.75

r 0.551

to3'j0.75

t.0

E.r0Er495tE.t4953

BA.t5d

l6a10t620

16

t6

4l

(l) Krypton filled

USE ELECTRIC LAMPS

-BTII UGHT METER

FOR DOMESTIC, INDUSTRIAL AND GENEML IIGIITING.

In these days when the importance of good illuminationis becoming generally recognised, the possession of areliable instrument for the more common measurementsin connection with lighting is a first necessity to all who 'are responsible for the design or upkeep of lightinginstallations.

The BTH Light Meter has been designed as a high 'quality instrument at the lowest price compatible withgood performance. It consists of a micro-ammeter socalibrated as to give direct readings of the illurninationfalling on the cell face, in terms of foot-candles.

Up to 75 foot-candles may be taken direct, but by theuse of the special plate supplied, readings up to 750foot-candles may be obtained.

The instrument (which weighs only seven ounces) maybe carried in the pocket. A special pigskin case isprovided with each instrument.

The smallness and compactness of this light-meter, infact, suggests that it should form part of the equipmentof all lighting engineers, contractors, etc., who will findit invaluable, not only for direct measurement of illumin-ation levels but for ascertaining reflection and trans-mission factors, brightness, etc.

For the majority o{ illuminants, this instrument may beused for taking direct readings. For sodium lighting,however, it is necessary to cdd one-third to scale read-ing, and for daylight to subtract one-third.

PRICE T

BTH Light Meter-complete with 'nispecial PigsLin case . . . . . &+

a:1? :6


IAMP CAPSThe illustrations 3re approximately one+hird full size, and the

dimensions are in millimetres.Bayonet Capr

Doublo Conract (8.C,)

1r

i Plau of Gps

ffit

,@+k-.L7*t

Plon of Gps

No, B22l2l

.a6No.822125x26,

Centro Contact (C.C.)

io.--16No. B22l2l x26.

3l

No. 822131 x 30.

xt

i...--16 --.;

No. B22sl2l x26.

T4<

:

I

--22--- i

3"pitr Cantrc Contrct

No. B22s121

.16...

No.B22sl25x26. No. B22sl3t x30.

Hollow Tubular

I.r5 3l

t-

to)iYii.-215 I e18.7

!I

14I

2t'5Boech

e43

o

No. BA Z)d.

20--

No. BA 20e,

USE ELECTRIC LAMPS

IAMP CAPS-(Con tinucil)

Small Bayonct CrlrsDoublc C.otact (S.B.G) Caxrr Contact (S.C.C.)

@i--rs --i

,r@r 17.94r

1l-

45

..t-

Nq E l4l23x 15

t5-.

No.E27l25

Goliathl(G.E.S.

r-....-.40.-- r{

No. E (}/45

rt7.g4 t5--t8.-r

No. Bl5/25x 18 No.BA l5d/17 No.BA l5r/17

Amerien S.B.C. and Amerion S,C.C havc shorter pins,and slightly longcr bgrrel.

Edison Screw CapsStmdard (E5.) Miniaturs (MJ.S')

t"'

17'i@

i"-.

'1ffi','

?5

.rL7 to

No. E l0/13

T'i

Minerg' Hanrt'IanpCapr

f'tisEr...f-l

i r5-,;'+@

Festoon IsnF Capa

[$i Ai Hioo @i.? 1 loii i..o .i

A'

13'i_o No.S7i8 lloS'5r8 No.9/l0x l2

CEAG

44

r--------

_Ft

TH EY STAY .: BRIGHTER LONGER

LAMP CAPS-(Continueil)Caps for Double Ended Tubular Caps

Centrc Contactc

I @i.-r5.i et5

No, S. l5r. No, S. l9q

No. S.22g.

Oip Contacts

@it '15-'i 9'

No. S. 15 N& S. 19

Pre,focur Capr.

26"

40

No, P. $/{r No' P 28/25

3-pin Bayonct Crp.No, B 22125x26(3-pin)For 8{l w. and 125 w. Mcrsa lampr.

4t ffiii"'lrrre i

40

@;@

No. P l5l19

-26

45

@"

OUTTINES--MAU)A ETECTRIC UIMPSDiuoarioor in Millinetrcr

T- It000

45I1500 w. G.E.S. Go.

G.F. Clar.750 w. G.E S.G.F. CIer.

Gp.

r:t

2Ow. E.S. Cao.G.F.Clo. -

Ow. B.C. Gp.Perl, G,F. Clw.

(,.l. l6chon.Coilcd-Coil. Tym "O"and BTH Tvpe "B"

l50u B.C. Go.G.F. Clar.'

25 w. B.C. Cap, 15 w. B.C. CroPorl, G-F, Clor. Pqrl & Vqc. Cliar-ufiS"*'O:n, and Trpc'o.' '

I

Illulrctims aqnwirrctelu qetltth tull tl2a,AII dimiw goa abue arc tblcd lo moufu&ndrng toletw.

4

i-i

I

r

OUTTINES-MAZDA EIECTRIC TAMPS. trlincoriour b Millincrror

lI

Ir

45

-I500 w. C.ES. G*

G.F. Clar.300 w. G.E.S. Gs,

G,F. Cls.

302

40 & 60 w. E.S. Gp. [onglitc.

l(X)w. C,C.Cap. DoublcEndcdTubuh.

Illubatiffi aDurqinatcla opsi,;ah lull sit

All dirmimt floa ahoc arc mbld ao mosladarint tolq@@

47

6

"*r{hti.#n? t4i.f$-:',*i

*i$i':d;Siand BTH Tvm " 8."

l

OUTTINES_MAZDA ELECTRIC TAMPSDimenrionr il Millimctrs

.---. 6 0.--

92

i

t

,,i"I

i:

i

25 w, S.B.C. Gp. 30 & 40 w. B.C. Cap. Vac. Traction,Sincle Ended Tubirlar. ' I

l0 15 & 20w. B.C. Ge. Signand 25w. BTH Tvpi " 8."

r-28

89I

I

56

I_lGp.

Sien.

_ll5 w, B.C.

Bulb.Pygmy

D

J4!

I

I

_l *25 w,B.C, Cop. Cothic, ,O w. B.C. Gp, Newul,

I llu sh alions a'ptuimstelu one-.t.hird lull size* This illuslrclion is opitqinatelc me-quarlet lull size,

All dinatius gioa abooe are subjul lo muulachting toletuces.

48I

OIITUNES-MAZI)A EI,.ECTRIC I/IMPS,Dinaoriou il Mitliortrcs

l-46---1-t- r

Twirtcd Gndlc.,Ow. S.B.C Gp.

Twirted Candlc,25w. S.B.C Gp.

r-,'

,10 w. S.B,C Gp. Phin Chndle 25 w. S.B'C Gp. PlrinlGndlc.

30 &60w S.CCCip. Doublc EndedTububr.

221

$w. S.CCCap. Doublc EndcdTubular'

Illutrations abptoxlmarcb methtuI luII drc'. Thqc illslru/dnt arc aqprqimatd]4 @e-qaatlq tull tbc,

All ilinaldw gioq abac orc tVql b mmlactwittg tolam,NOTE-MAZ)A LIGIII TIJBES r Dimorioncd oudimr ar. tivm

oD IEgc 15.

49

*

*

OUTLINEFMERCRA FI FCTIUC IJIMPSDimonaionr in Milliaetrs

il5

60

t@

325

t95

80 w.3-pin B.C. Cap.

Mercra.

125 w,?-pin B.C. Can.

Mercra and Mercrawith Ultra-Violet

Filter Bulb.

400 w. G.E.S. Gp.Mcrcra Fluoresccnt

Tubular Bulb.

t65

330IE

r95

_2J9., 400 w. 400 w. G.E.S. Cap.G.E's. Gp. C,E.S. Gp. M;.;;; F[;;;;iM€rcrE Mcrcra lco-Thirmal Bulb,

Illuhations artlroximatelu one-sitlh fuIl size,All dimensius gioa obooe are wbject to manufacluring lolelance.

50

ouTuNEs-sgDRA ETECTRIC IJLMPSDimeasianr ia Millimetreg

55

50 w. B.C.Crramic Gp.

Sodra.

3r0

50

t40

100 w. B.C,Cersmic Cap,

So&".

150 w. B.C.Gramic Cap.

So.lrs.

65 w. B.C.Granric Cap,

Sodra.

Illutrcliw spptuinatels ue-sixth lull dze.

All dim*ins gioa sbooe are subjqt to mnulactuting toleronw,

5t

USEII

-

ELECTRIC LAMPS

CONVERSION TABTE

MILUME'TRES INTO INCHES (to s'g of u iach).

fi132318

131327lt6t12

t7 1329l16

t9lJz2t132nl16

IIIIIIaII{

l0lll2l3l4t5t6l7l8t9

3142513227132718

29132t5it5

tl?2I lt6r/8

707l7273747576777879

t 3lt6I 7132I t11I 5lt6I lt t32t 3!8I t3!32t 15ltzI lt2I 17!32

m/m

I234567I9

l0ill2l3l4I5t6t7t8l9

202t2227242526272829

30?t?2,tt43536,73839

Inchrs

3 5A'3 3lt63 7132I 9l?2t 5il63 |t323 3i88 ?lt6s 151323U3s tTazs 19132t 518321172I il/163 3143 251328 t3lt63 27 1323 29132

swt-s 3t 132a utzI ul6I 3132d l/8| 3lt6| 71324 t14t 9132

000t020t0405060708a

3t813t327lt6

15132t7 1329lt6

19132518

filt623132

606l626364656676869

0 251320 t3lt60 7180 291320 r51160 3t 132I ll12t ltt6I 3132I 5t32

909t9293949596979899

t 3t 13222 tlt62 31322 tl&2 st322 71322v42 91322 5lt6

505l5253545'56575859

131327l16

t5132v29lt69tn518

2U3223132

314

808t8283848586878889

9l165t8

21t32Ilt623t322513213il6271327t8

t5lt6

IIIIIIIIII

404t4243444546474849

U25lltzl/85t323lt6U491325lt6

nl32

m/mlnchem,lmInchq

52


?

DISCOI.'NT TABTES

2I%2%

':*

I

lt

':*

t

IltIlt1lll22l2l2T33313l3lIt1{l

IIIrlr*n22'2l39l3I{dlrl{t55l5l

7Lt2Ir9l2tt803?ll2Iret5|l00120r80a0100le020EOil000c0

9o/o

d.

I

tI$u?t2I3t$Irt|t56l5l60l6t

t=

{t0lt2l

1712g24*291321371{080120lc01001{01E0

112 0118 0200t00

6060I000I00000000000

tI22S3aI5

l01t05

10t505

t00

LI23I50ItI

10ll12l3t4t518t71819

4,I23{56IEt

t02030{ll5060708000

100200

Pgnce

thillingr

Pomdr

d.rtlzl!lll5{0lzl8lsItcLtr

53

USEI

ELECTRIC LAMPS

DISCOT'NT TABTES

d.aII+

lttItr+rlr1

r*3i5*?lI

t0l0*ztrrt67te*ll*1l3{t6+8l

101

s060s0t20150180lt0

l{0170It0 0300{10 0600?10 0900t0t0 01?0013l0 0t5003000

15%

s.

IIII1I1222222

f

2Ad06080

100t20140160t80100200300400500

600?00800900100020p0

1234567II

10I(l110202t030310{041050

100

d.tz3AI

678o

l0l1

t.I23I56780

t0lll2l3t41516171819

s'I2345678I

l02030405060708090

tc0200

Pencc

Shilliugr

Poudr

u2*3*4t67T8*9*

r0l0u2+3*4t67L8l9*

r0*

IIIIIII11I

Irl7tz,38l4'4l5t66*7L7g8tIsl

r0l1011lt

d.

ltlitttIII

l.t€ rd't*tllli++

t0%5%

54


DISCOU$IT TABLES

Peace

Shillingr

Poundr

d.I34567I9

10ll

t.I234a6789

l011t213t1l516l7l8ls

37

l0l4t7tlt418ltlll5

3105570815

t0 l0125l,t 015 151? 10350

fI23t567II

102030405060708090

t00200

55

t7L% 20%

d.+1

T&

II11rl1lrt2

ts. d.IiaItlr+T}u2zl

4r.

2{f6l8*

10+0;2T4?7s

I11l3I5l7lt9|lltu4

2t57L9l021t4l7l9i02+4*7Le+02l417L9l

42*84*

12 ?Ile 9t110152;rs4l

1r3 7l117 9*224444660880

1010 0tztz 0u14 01616 01818 021 004204

21%

d.*

iIIrtrt1*222+

f. l-

Zlt57*

t0r0ir3115it8+1 lc*2tl2312st2 8X,2 tt+3r*8r136t39+{0

18

t2l610l4t8

lt211620406080r00t201{0160180200{00

EIJSE ELECTRIC LAMPS

DISCOT'NT TABTES

___r__€r.d.

IIIIrl

1trlu2!l2'

-"5lET

t1tltr{}t7Ill0t0t2tI26l2S30s2t3518813lltu{{}

,"02tl3 el18 rl130177+ttz 2t

116 9ltr{t,60atz 0618 09d01ll0 0

1316 0t82918802014 02300t800

II1t18l2l7Itl

l162026dl061590rl 5lt t0

t5 t5180206n${5 .,0

ltt89ttt 2l11 7I120

t8{ltl0 0*1t5 2l119 7lr{0{80812 0816 IlI 001340

ISEO1?12 01916 02'200lt00

d,I23ID

678I

t0lt

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l01lt213tll6l6l718l9

f,I23I50780

l02030{05ll0ll708{l90

1mt00

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2t5l8

1011l{}70l0l35t8lntl{}7T

100l3l

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r0l1l8l6lIrrl2L6l7t

t0lI3l61I

1112L

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d.lIIIt+1+1Irl22Tztr

L3d.IiI

1l1+1lr*22t2l

€r.n+%n%

56

THEY STAY BRIG TER LONGER

DISCOT.'NT TABLES

d.I234567II

l0ll

t,I2II607I0

l011t2l3tts10Itt8l9

f,I2IL567II

t020E(,{t5000708{t90

t0020e

Puc

Shillirrr

Pou&

2r% 2s% 26%

lr.d.aftIIIrl

1t22L2T2t

s6I9l0l3l6tc!II7l

r0lur+7\

t0l258l

1$

2lrl7T9t02T.lITst00000000eIe

{{4I

51015l0l8

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108t30ts t2t8 I20 t6a8280ut

d.*ItIlt

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fr.

35t8t

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1il 0l80lltN 7lt18 ll282128 0l16 07{0912 01200lt80t816 019402tt2 02t0t{800

5l015

t0t5110t16,02521050710

100t2 l0150t? l0msn$280500

57

-

USE ELECTRIC LAMPS

DISCOUNT TABI.ES

nt%d.

iIIlt

n22l2T2t!

3l6l

t0tl|l1lll2T5lD0l3i7

r0lrirt8

1tl2l

t.

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irll627

l3l8I9

151050

l5l060

l5t00

t

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llt3l8l0nAn55

6tlt0 0l16 2llrTlt?0ltz 4ilt7 9l2r2l28?l2ll 05t0

820l0l8 013t0 0t8a0l0lt 02ll2 021 8027, 0,05r00

w%d.I2tI65?t,

10ll

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fI23I567tt

l0m30l05060?0t090

t00200

Po<r

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Poudr

318l9tIrl7l

r0l25l8lrrl369l0lI7l

l0lD

d.tIIil22l2l2lI

Lfn%

58


DISCOUNT TABLES

aI2tI567II

l0ll

t.I23I561tt

l0ll12t3tlt5l6l1l8l9

tI2tI567t0

10m30{0lt6{l70t090

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8% No/. $%f,, r, d.

ltIltu22T2lE$

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5 tollr 9ll7$t 3?ll!6r15 ll,l!l2tzt2rt ll2lr 06lt 0l1? 0iltt 0rt6 0t?lt 020lt 0

''',020ll 02tl0 05t00

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r13 7ltl9 2l2t9I2t0 tl216 0512 0t80ll{0il00l0l8 0l9tt 0t2t0ulo28005003

59trl7lr7ftItztIt0rlt 9t207128tI2t2 2l218 0518 0tlt 0lltt 0il10 0Itt0t000?'a0n2023005800

59

USE ELECTRIC LAMPS

DISCOTINT TABI.ES

d.ltItlri22t2*333l

0t7tlrl9l7TuI88

r0l2t8+

10126l9trl5l

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6ttt2 0lle 2l1671ltz 0rt8 rt2{e}zlt 2lzfl 1I840880gtz 0

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60

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11522292t63 3..31070

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114 62t{L28312t5 2LN:2 lt3006.18 01070

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DISCOTTNT TABLES

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DISICOI,'NT TABTES

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63

USE

-

-

ELECTRIC LAMPS

DISCOI,'NT TABTES

6l-td.

II

The foregoing discounttables have been com-piled for the conveni-ence not only of lampre-sellers,'but of theelectrical trade gener-ally, for which reasonall the discount per-centages commonlyused are included.

In order to find thetotal discount on anamount such as $163l6s. lld., it is neces-sary to add togetherthe discounts on thef ollowing separateamounts:

f;,100f,60s3

These tables have beenvery carefully checkedand it is believed thatthey are entirely accur-,ate. It is not,however,possible to guaranteethe correctness of everyfigure.

. 100'l 0 0'lt0 0200. :210 03.0 0310 0. d00110 0.50010001500.2000. 25,0 0.3000

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600010000

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64

PATENT NOTICE

MAZDA I,"AMPS

Mazda l-amps are made in'England by TheBritish Thomson-Houston Co.' Ltd., under one

or more of the following British Patentg:-

and others.

MERCRA I/IMPS

Mercra lamps are manufactured in England byfie Britigh Thomson-Houston Co., Ltd., underone or more of the following British Patents:-

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n1449

228W7

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#7432

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BRITISH THOMSOI|-HOUSTOI{

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ElectricalEngineers

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azdi - lamp tech

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