Download pdf - RELESS WEEKLY - americanradiohistory.com...F bni1.1.ry t1tt\ c-b1ldrf'n's lavorit.t'. 'Hally Hum r." l"Oruplett'd hit Jftttmd 3·._-.a1·

$Page 1: RELESS WEEKLY - americanradiohistory.com...F bni1.1.ry t1tt\ c-b1ldrf'n's lavorit.t'. 'Hally Hum r." l"Oruplett'd hit Jftttmd 3·._-.a1·$
The wireless weekly : the hundred per cent Australian radio journal

Page 1nla.obj-699342489National Library of Australia

RELESS WEEKLY

Broadcast Progrrunmes a Week in aril 1ance

VOLUME 9 NUMBER I~



r J.a7. h \1 h 1'•2-: Wl1'£LESS WltEltLT

• .. ........ - ..... ~ ... !

3LO

a 4QO -'CL 3AR ~ -

SON --- 2k'-' ~ :__

H A\'!<: )OU nb~olute control of your rec••1ver'/ Absolut~ control means the ahihtJ to tuni, in an> J1Urt1r11l.1r ~t11tion witl1•1ul 1111f,rfrr~11c~. Il mcnn~

I, u•g nble to tune ,J,mn oft!} on th,• lo,:al stallon, urn I ) ..t l,,. alill tn !Jrlllll ur1 th,• \'nlum,• of th~ distant

tat on "1thout 11acnlkmg tone or auffcnnic 111krtt rcnre.

A Centralab Radiohm does it for you!

Control your rnrlio n'<'e1wr ,nth u C,ntrnl:ili Ra•hohm for 11Teal t II, x1b1hl>' and power. Gh<'! smooth ,·ariat1un uf n•siMt:llln' ld11ll for 1,)111•• r1n·111t ,·ontrol of o dllal1on. :-:ow uar.d ,.,. n •tandanl Ly mo t u! th~

promu1cnt manufactun•r~.

c. c-ntnl,1b Redatihm..

Pe.rfttt control, fron,. a, "hi I r lo ltllllman \: lum<•.

kl I 111 l'fllCI· II •

If your Dealer do~ n o t yt"'t &l<.u~k: thl1 part.. wralie- tc:, ull direct:

United Distributors Limited WHOLESALE ONLY:

7 2 Clarence Street, Syd ney. 343 Queen 5 1., 27 Che.u•r S14, i6 Queen St.. Cr. Jt-n·tll• Quay & Han-1• St., 66 Chatln 5L,

81llSBANL ADEl.AIDE PERTH WELl.11\CTON. N.:L. I AUNCESTON, T a,

------.. -••-•u••-•••••••--••------•---H•--------------..J



Frtd4J, ]~27. WIRELESS WEEltLT l'<za Ono

•••••••••••••••• •••••••• D ••• D ••••• D •••••• • • • • • •

• • • • • • • • • • • • • • • • • • 0

Price Reduction! A.W.A. and RADIOTRON VALVES

The

Amalgamated Wireless ( A' sia.) Ltd . ANNOUNCE that from March l, 192 7

followng Prices will obtain for the! undermentioned i Values :

A.W.A. IOlX A.W.A. 55 A.W.A. 99X . A.\V.A. 99

11/-11 /-13/-13-

GENUINE RADIOTRONS UV. aud UX. 199 . UX. 201A ux. 120 UX. 112 U:X. 200A ux. 210 ..

13'-11 /-15/-

£1/15-£1 / 10/-

• £2/ 10/-AT ALL DEALERS

Amal~_.!$~~~ Wireless ~ 1u. lrula$~

97 Clarence Street, Sydney 167 9 Queen Street, l.\lelbolll'lle

King and King Chambers, Queen Slrccl, Brisbante.

~ ................. .. ...... ........•...••

• • • • • • • •



Patfll T o • WIRELESS WEEKLY

LAST DAYS! - further beavy reductions to clear!

Ha ,r,natetn, Radu, s.1¢ h .. Cl'Hltd • ~e.oo1•tu:,n !",r., DrHhc Rod1,1diori• 1anil ltu i 0 Oi• lO\.lf\t ,n "•di .i! maLf" final •ad doubt~ •tUuti.,,~ c,lf•t• 1h•t ., .. ...,,lh8'11 pa,,.Hrl

lrn.[l('1 .. ~ N.-u1rc,<l)n,. K,1~ .£4 s .. s1011,. >! d,.ils B.,kelilr l 9 I. ou,I '-p,-.,k.,,, I 1111mon•) .£2 3-< o,I I lolJ,-,_ 5 /.

Cr)'&ldl "ds Iron, I lradphon,., from I \lah,. :\rnphfirr .!-uh,. Ampltn~r

38 6 George S treet, S ydney At :oi.0 \ I

26 7 6

25 • £2 2.

Hurry! Hurry!



1111, 1, ~ ... 19. rRIIJA\, MARCH 4, 1U?1.

The Lowbrow Wins

ti I h lh 2.f C

el tetl Beetho~en ! oil th da kn! m

r,



Pago Foll!' I WlllELBSS WEEltL'I' ______________________________ ,....,_,.,,, _______ _ Between You And Me And

The Microphone

THE FUND, lnit!Atod by th• Lon don D ly Nl'W for • u PIiing 8riLI h Uirttlhlµa wfth brua <II: t rec "r , bu be<>n romp! ted bl' a gift of £1,..,u frum Lt.rd I b<upe, chalruu,n f lb• P, and 0. Lino.

Conducted by Jack Plugge

LtSTt-!.XJ::R~ "nhou:t li("ton,;,~ !"VI!:' bear ao7 tood ()f r henur-lvcs

AX EXPERT I• com11 n ~1 L •\ e \ 1 n<"Pn a nQunc<"rs 1po I Hr r

loc:tltionory ~1f, l ~ by lriAtL'lwtlr t ht i r reath t quld1..ly Well, 1bort p1m•

alway.a, , l e- the fuhlon Cvt".r l.hre.

,1 lr4CHO F'IE\'D.

A LE< ren.1-! on tpec al "crm!I I f rt t;• v. 1 l'J11 Pl\ ncr1Ltly fron1 oneof the Amt."riL'Dn stadons. .At th, ( bA..r •l.l anJ Blut'I,; B Uom "fr' rl.QI.; mMU-ltJr.ed, tb~ orr. l'Tidently n i:a:,:ded u ordl:IIIU')' to=:.

~ MI:SS,,,GP r, om Stocl.hhlm

,:.':.~c-r~~t •i ~~~'~\;:al~:.';; tat ons \'l:ofh Tllt ttt1 t..he :,,attw ~ •' ,..

lt'ntrth hu bt-c-n produced by th.e Lror..rka tlrnr e-.pt"rt u! tM ~wt•dl,t ft-h:,¥rar,h (Hlir-e- Xo dri•it!'l ar"' at. pr .. rnl q,..o,i•hl,.

UWlTT 1.011<> P.l::RSUNS Are npt,r. t J to h ._.o b.tL.l•rt out wirtoJt-,,,..c rcct-l\. tr.i! hcc ~ in lht, lriah Frr(' ~L&l:l', wh.•lc,, according to th~ "lriwh (nde-

n•l 1,t." t 1·r•· re &a! prox1111.itrh 10 OU! 1 ,1 ers of wuelc3!1 fctJ. Thr: \I' r I 1 8111 'f'O:l51!d hi th, F,·,•e Stat-c! ra1 hAmt'nt, durinr ntte-mhrr. pro-\'id t ,r nncs ui, to no tor tht 111 t u e of w,rd~,s upparalu •

m RJ!'.C: rm: SEC0'.11O WE.EK in F bni1.1.ry t1tt\ c-b1ldrf'n's lavorit.t'. 'Hally Hum r." l"Oruplett'd hit Jftttmd

3·._-.a1· <•! unlntrrruµtcd tenure ot hi! rh rl h,d lk1 uh n 1U1 3LO'~ only "-ifl'• l~a und,.. lit! u1 nAturally vt-ry proud o! thl1, IU!d It Is a little wonder ti al a \ft"ll>ournP d,dly p,\_pn mii:i• prmtcd hl namo >lightly •• Mr •·Brool," u L'\;dt-ntlv ho UII dl'filtrnC'J stl ·,.;ut. In ih joys ,md 11wmur1e~ ,1f rhJ1Jhood. to ••g1"> on 1orcvrr." In lns tnr,re e(>rrt.rt title of Mr. Bo.:,k, how. t"Vt-r • t ,. 1s n~ ~lrf(!nlly dot\ to nm ir.to many oo.iUonJ and at th~ f'nd of t'.&th 31enr "to b~ continuP<I in our na:t.11 or at. lra,t 10 far 111 his happ) ch.iltlrrn ccm havo it 10.

0:-Jt: OF THE ADVAXTAGES of th• n ., SLO :Stodio1 wlll 1w that \he tumult of htuldm,: open.ti(ms and b I v trc~t4 \\ 111 be blotted out or t ~ dn)'.• proJt'r:urmw. For fon1e, Hn1it0 now. LO'si pntn,n~ have been t••m.in• dud rlurln$r tho worldr.g houn ot the r 1 • that llelbournu '" A pro,,...., ... J,~- ... c ty tn thn nnd, o{ l.ht• buIIJ.cri;. Ac.ro th irr,ad th('I DC'\\ 'Town Hn.H Ii Jlf"t lrta rn I olJt- la.ur,; otf"•"lio11n1l)· lrom th loud pt.a.kcr thci whar.Je o! U t4 1 :ltl tu•JM.•ndl d i11 mi.I.air ur1 ~nw v rd, r I f'IOE' }llnttd m f'OJ-itlon. Thr ( I nc of A ln1m h«-U. th\!' 1bouh ut r w,.;1 CIYI, thi-- bnng r thr rl\rttlng r acl-,"ne c n tltt:" tinfrrR lurtht1' up the- treet near tk1 Audltw-1wn. may fteu lM! distingtr hr-J, nut onh in the

inten-al~ brtwten 1tmt , but tven 111 ti.a miJ~lo of lhem.



f t11 t' :· h \f ,tr h. let 7 WIRELESS WBEltLY r ll"' J- lfl

H T 1' 10 l.o•dot1 b

' ,. cf

Microphone Sense and Radio Effects An -0nnounccr'• ob~crt·alio11• of the 11 "" orltM-8 act u_·hen bl.'lorc the micraplwnc and his (';q><!rinw11ts u ilh

arhfiC'iol sound.

By LAURF.:~CE IIALBEUT

'..her-~1ze Burgess ror n~a,, l urn nt llrnin_,.



WlllELESS WEEltL1

The Story of the Microphone How Emile Berliner, a German, mode the first microphone, i~ f()fd in hi~

biography rerieired heloll'.

huttt1hurn t h rl. • c;,xI tt"nco in hit h l•ffl<" tn~11 1 1 llanuv ,. J e •t..:11 to th.-t nlt 11 :Slilt n. I aa Mr \\ U, fAY", .. an ltt. ~UI \\Ill ~Nfl Qf ti.

rcmu.s.



,. 'dr1 1 h 'fa , 1 1 ... r WIRELESS WEEKLY

\ nu c11n Rt,t•har11" a Philco for u I•\\ pt•nce. .... '



Page F, irr.l WIRELESS WEEltL'I

Utlu•r C'LIIUJI htur:s huiH raJin • l~ in D P.-X:kt>l bode und 1n D hirhthou.n. A :S•vaJ , llflt "'"~ huu li!d rn a ~rambulator lOgt"th, r wilh G doll whi..:h W:t'.'I J .1rt of th st\, an,i the oY.-nl'r bee'• t ou h t'Dlh.-.J J ! ch•at1un E ••cr)·uJyrlt': (1h1.1h r .. v1tlt>J1th h.- ,~a 1 rnarr,t"d u111n,

A "'b, }Un.till ~ t .. \\'Ii 1J!n• uf th~ mo•t arnu 11,: of lhfl work n( tht~motrur lt w~ DUid ul bits c.a! Wirt, th, , tu! W und 1 ourad a brokt-"h 1.mtll , anJ linikt-n forJ..: l~ u i.:tl as b ru :i.ns 11C m.a.kmg \;eantuct So.rnt- Qi U,11 l 111 lh• UOlld~ur ,·u•ol)t•l t 10ll ,, rt> ,, \ b,•1n1t1ful nnJ th,· thrre

ldR'l hrirl ,rrrat cWitculty '11 :lwurJH' 111 ,,ri , s. Ju ~\ t"r:Ll c-a .. .-"' it

\\ h ) Bla me Sta lk? Bui '1 Phllrol

lfJIJl'Rtrrl hM thrre ""oulrt b • ;i~ dlvck, .a.n,I nnl.> nfh r con,r11r1s,,11 of th1• :u.:b r)(.11nt hy pqint coulJ uruu1h11it>" be ntriv~d ~t.

T 1 fflit' by Hndiu. To the ncw1.:om1:r tu r.u,ltf') thr rn")rt

M.1trnct1,e fitntun• Whi the (·1, lroll nr and ynchtn1muna: f t lnd1: Ly "' r Ii: .• This WH on \'!t•w ut the t..J.U ! !-J, w Sy,tt·m 1'1·h•1)h1 111:-~ Ply l.td .. wh<:-n:111 WM Fi1u111f' I t.ht" w 1tlt lrllli!mlltt r for the ('Qntrol o! thl> l"lock, Tht• "lrnli:> 11! tht" "lr tr1tul l'UHITT" wa 1urrhr-d hy .Burgey Rnd o R1t lt·r1es.

}.vlq hulf-ho 1f t)u, hn ,I~ of D b1g chck \\.-rre )'DL hroro. J. Fi to t 1.• 1dl)' thf nj,Z'ht tune-, h\ th!IJ •qr k:,i:•

ttlln .. n11tt(·t Tl t•rt? ·~t,-,t r o wir, c r nn<"ition CJi n.nv loud betwc-cn the

'" o tl H. l.:A, ~ ~ ·t•J•l tht. I11tnnR'ibl , •}11 r nd l h<· t>lectr1 nl I rn11lll f?IJ pfUlJ I g

thruu~h 1t Tb.ta W(!lr,l r1rlorm1u, e n, nrlt"il \ lfllo1· < 1 th~ re<.'<'nt cat Jet

wnclMJ!'t>- d rlt1•ns,r th t ran" ( ,ill ( JllY mot,)r, ul" hy m<'nnt of "'11 ll' •

,1 n f111lt1\\ ·me c,tr. Tih- lr,rn mitt r wu d •1,cm• J nwi huilt b)' \1r f' 1)'• mond AJl~QPP, L'h1ef Bridneer of -BL .

..Efutriral 1-:,h1h1lii, Th\ t uu tw1fo found n ch l at•

tr,ht hc,r u1h•11t or, 111 tt,,. dertr1d1J cxh1b1te:. tlt l:tr1 '\:Alu Hn de1uM•r11 bu.ngnl) r,,J on thelr t.nrl dt t. -011 t C.JUJ1mtl) dr J t •1ik ffic1:.te,J o ~I' thl dt<·I rn.· rant?~. I urn tlJt" out ill • rt of titt:'tJlent J Ila.•,. cl, u,l)' n.n1l h:'l'l'""''---ally Watt-1 \\a l,oih J fr 1\ ftuh.or, Jl It Pim! abutu J11'4..>S l:d ond ~ h•lt bath D""-.!m4.:d c,oc

Patti>~ tt.<1•1\'1 f ll full ,,,hWu~·· -.·orth ff\im the concert pro~r.an !nff k1\1~ or1 tl11 Tuwn ltall i1.lli.f rnt rarh •ft~rnoun a11d f'\t•h.111,t.

l ht• fivt• chi,•1 t..ron ka!!th1g t.nt 111

of Sy\lnies to<>.k turn fo trt.'"At the Town U.11! f lat!u1 ,n u th lr tudio for t.h4 vcco w11 bnd to ,:n, Ht Ir 1u1 )..!"raru..nwa from tht! hnU tr t"nd ot fr1111• ltw 1ot..1.l1011 Each nrti t \\U.S hroa,ku. t "'" that \'l!iil ,r tu tht"' f-'-• hib1tion heartl llntl uw the nrt u.. f .l,.tt-nt'ril i11 tiu 1r humr 11U O\ E-r th1 State }u~ant tht·m nl o~

Soy~ Br~ Stand. All•BMtb-h nppm·HtU V.ii. ~111 ,how

by M.vsn. No,·t.11 Bru.s L..:.)dlH:J • l.t<l The world-!o..mout Jgru1m· SuJ)('t Hetnod;inf' J92i Mudt1I \\U 1,r m nently t.k. ployN;f. Oldham An·otnu I.Jitoh ( pt-iclul uctn-ation proc 1, llrHwr1 '• lolHI pt•.tkn• and a Cq ,. .. x "'·orkrnl? dirN~Ch ,ti t1 m 111 , f)

stul ttet h<'lp1.•d 10 i::.ruite ,111 int r-e t Jn udd1uu11 ,u:,v.-tHI t11ntrt::-&l labeir u1,nne dl''-'ICC' \\t•r,• .J, I Oll"ltraled

\\ u. W1l~s. SL"1111J Nu. h l1ou rd I h•• _p, 1id (If

M,$N. I\ Harn \I,! . \I 11,• l\"an,lt·rful Wi1th: 111 k.u1v.11 t-, all. 1111,1 th, ,r \\dl-k,14 ,\11 ru,1 •~ 01 rr-ca\·ers we-re f.'111 Jl1• \\1111rft<r tun\! ru>m, l.'Ot1stri,1,·tii>h n:,~1,,.·,·r 4



· '"'t ~·hich ma~ b~ I, nl t.,.,, •>· -t••J h) th\'l ltoh1f' c:un .r 1 tvt, war ('~ pl:i•nC'J rourte,c,1,.1 ly u1tt full} :-ibl !<led Ht , the I t~tit uL fu.te1), hn I a rrornintmt 1,u11itior1. Ttus u1d eu.ablhhL-d firm wa1 not bt"hmJ 111 ar y wv.y. 1n farl, 1.h .. y \l.,._.r~ ruth,•r lo t.lal! for... Th~ Tc.lag u•ne apcakcr t• wdl worth ha v1 nl('.

:<iln:tmfff'r~ C.Hl"ltiu. ".\lot J•lurle h.t\t! ht 111I (t( th

~U'umbr~ ( &rl;ion ~li .. a•IJ d ~1 utro• tl}"M', 111·bi..-!1 tit th• lut \\ord n dc-c• tivit)", llilfl'f'n1t. rnu,l,,J of II :t n 110" 11••d r~i!.IVn, o.nd an , Xl'f"llr·nt Uln~(' gf Jt•Wt<ll l\ft u uri..ns: ln.ilta menu ltttrac-ted rru.ny vf 1ton al A-ltsHs. L. P R. Bean & Cv, dud.

\Ja1:niuo1o. At Anthony llurtl,·rn .t Su l.t,l.

oht- !uund rnua.:h to aurac• I h '.\Ing f!4YOX on ... flint Rt'U'l\••t \\tth ti •. tu.a .. n·ellous MAJ.:"T\DVOX lnud peakrr c:u.1-irJ on,, tu ~lei11 nr J. lute-rt. M~ny ,htruent •tl! from a tnit I~ <"~fttal ttoni\ .. r t.., a klOr1uu mulh vu.1\"e ""'re upen to in ~t1on. The t1i«Jy d .. 1fgn..J 11bl1 ,..,.us 111 l.el'ptng- w1th rbe cood of thi~ v.t'IJ•I no-.-:n firm.

BC •. ~~ St':.;l 1loor \.I.JI.I thr JttrnJ or the

Brnl h G,•ntnal t.lc.'(;tr c <. o. l~tU,.

:!~~'.rl~~ ~.t:~11•1i~P!.';.):'s "a!":~il ,.! hr.ciadl·:•:,11t nceiv,·n. F:l~tdt.·al domPS• tic apphtHK'i• n.l~ 1-1) hau.l ,~ cr,,w,I xn,ur,d •. 111,J on,- wr.: lmrr1."l•tt11 with the a:11l~nd1d K lu.·me ur dhruunauon ur1 th~ starul.

\\. <i. \\ ahun, Prot,ably nil t•lfft.Tlcal Ar,plt.a.nc "

art" on 1hov. nt the, !'it• I ut M,,._._r..._ W. G, Wat.Ion de, l'u. Lt,l. The rnJou tsrtthu iad sloJJ et th~ llltt11 B"U.n}· Ch.t1..'1t('r and thL• G. anJ GU Repro-•IUct<r,.

'-•-~n~ S.. Jl:rn.son. \ ranr,-_. of ttana111ittl11i antl rt ,·~tv

lng val-.tt fur all rtldiu purpolk".f, la 1,ur-~a, i 11g 1to:.-\ 1ct-!I, fl.UC'h ,u. Vtlt!Utan

tl,aners. lkClar; Sw-, und lie la product-. V.il'rt- wortl1 a4H:h~ at Th~ Lawrllll£~ & li11.n.Jcm Elecu-1 aJ c 1

•

l,td. C•:dl-,"·au.

~Rdhrwan" Ju bi~ h·t.ten coul1I Le ucn all ovt-r tl,t:t ]~xi 1Lit1u1. 111 r~

WIRELESS WEE KLY

, 11 h;<>x Sr,1•;t.kt-u, F.J1 Yiour, \ ahie.15 11 ,t J np:s. , u,tphon, .• u11 fom1rn1 ., .i Hy, o1« n b. ,t,11-t:'. ii, 11it-H •• D'ftsny clc:ctncal dt:\1CC:3, m"dc thdr e ,II

Paire Nine

~.ia thnl or tho- M1111ufact.arcr.s Pro. dUltl l-'t} Ltd. AH lh J?uod1' of l,mn4•0 hr•nd n• "\!la a comtJl'th-d 1 nimco :S•1i,~r lit.!t~rud)'ru: R1:c:.dv1:r.

11 Iler rade l'orUI R1•nrldt-, flA,Jiol."':1 ir d \l.rsont; producta cnuted lntere,t The m>W Jtad kes 1erwo1...J •ml hh 1.1 J.11.r eolla were- on ~ di.splay bo:a.rd od cout<l be 1ee-n fnm1 1 Jt l :ttc

1h C dt 11 tl Ii ,tall, "'' att ,,r/ bit.

.\sk any Radio En&hwer a~oul llurg~~ -



WlllELESS WEEltL'f

Classic:Cll Music

llur~•,. \\.-nt \\llh I ._ llail n,rr--.



.Frldoy, F"bruary 25, 192';. WIRELESS WEEK:LT Pap Ele~II

Licence Dodgers Pay Heavily in Victoria T l!F. im•t• I 11ul.horlt!oR app11ronll:,

llJ'1! m:ikmg: 11 vjxnrc1U!I n1lack ou MclL1,1urno pco11J1~ whr> fo1•gtt Lo

puy th .. i.J- liroadca,ti11fi:' (t•e14. T..n?t~ "'ed. thcr, .. WftD nt·&-rl)· 20 prcs-i.:cu• thllt 111 ,·1ar,0U 1wl:ct• t·ourt iu 1111J nrounrl thnt city. 'fhf• !org-c,tful ones w,•.rr !lnr I frnrn JO/- to n'i plu~ c1Jurt. <-.:tJ1on1a

\\1th !In mnny warnin,:t J(h,n bJ 3T.O to Ii tNl 1· who bn. cl O'H.!tloo.kN! th nnr•le rluty or J:Ulfll,j,C' tht<ir ,uberlptlonr:., It i .rea.11,\ eurprhh1F that

1110 manr Jol•uplt 111 e ('1Uml wa11trng .. lt cecrtuinl; mu.tt ln, ll cun of proc:-.t"AA-litu1tio11 that ex1>:..iln11 thH ,.Xpt'U!IJVl' omiulon Qrt thl'I IJatcner'a r,zu t. Thl'! l•~•t•I ,,ftOJ)J.,, ha\"'Q 11(.,t lo11J u• \\'1Hll: n.t·P thn UJ1l)bri:-nt c:au .IJ or Jallint: to ~~l k hr.:nt'e: J•r•)L:,l1l3- t.lu y t'ould oc,1: ,·rry we II !~nov., .··tnd th, f".Xl.'UM'3 <•r 11x1,lunitt1orL1 r11odo- to thtt nuagl Lrat4,i nre d1lftcult of <,lwnfn in 11 r l.11.•-.t llgl1t-1t I• hurJ lu I• II 1,hl lt 111 ll,n fnu.• .IJlQrY~

Tl,e mai,:i,,.truti::1' vh•wr ,i11t a11l I!! }1urd to ju ti(y. In :-am \11.~ nn r,tft..11cJ r UI ftmwt 10/- \\'}1 Jo in oll1t'M1 tfo, t\11u u, ns hlsrh t~ ib. Prut.nbh \he t-vldenc(\, 1 Ii •lflt+ n1•e o.nd tho Jcti t!-lu1?u.r fJ( U10 otr~,,(h t1 h 1 ,.,. mo t t11 do wh.h lha n.rHty of \:lU\\'11 tl.llu:.• liy mnKi•trAtH,.

Or,1• rAnm,c. htilp fl't.'lin~ Oft'III #)'1u ... pnthy for thtt J1,.tcnrr who d1tt:1d1:.a to g t hi!! lice:t1N! wht!II u .1:t nt·ar 1h,~ JlQ!'t fllfict.--ond il1en fio,t-11. Nn th1t !int n111lnif .r or hi fnr,;etlu.,n~:e. lhnt a w1, rlt•t11,s inart,-, tt,r comt bliJnU wiU1 a P.ummon.1f Th Gn-.~l'nmcnt t,tfl .. f:tl1 l1t1n, no mtrC'y Arni tole Io uu· I h f!I 11acl 11• sa ins: '"Im nrr)·, I ln-1• 111ft-d gt--ttlnit 1111 He, 11u L1 ~ \\., 11k nnd I'll now I:' tit 1r glH wo '"

But evidf'ntl.v t'hrt,· art' !t 11, nwnn-11p1t1ted pi&<)Jtlo \\ ho l."'-'"' Lt1 Ht t1ut to dodl:'f! pa)·fns: th h rkt, ii .. r ,I ,...:1 1,) hi)()~ or by t ruok 'l'J1,.v U Ill hAvc no rulbl~ aerinl •n tluit theu ~,r. ,,111,11 nvri11l ~a.nnnt 1 '-" Ftcm.. fhu ("nti b" no 1ymru1thy for 1r-h rll'opt,. Tr the hron,lca. tine- 10.nic-t> l \1'f•rth li tl!rriu~ tr, it it . IJI th p:tJ, mg r,,r -an1I 1 h1 pafbtf1lt l Jr: th.u1 • JH nt y • ,Jar. Th•1 11-f•ll.JII nuthorlth • an doJOJ."" a 1<.·rvite to all r,1n "'""Iii • li1dt<nc Ly liringlnJt 1u~~h c,lf nder1 to ~ok.

Ml'I ROl'fl'.;J; fl H>IO F\lllBITIO'i,

T !tf-: r •mm~ Wir I,, F~h1b1twn 1'l :'llulbourno will Jin I the uuho world (1( ·\ lt tr aim i1 n htrl (I[

oxdtntl ilur.r)·. l-:v~rythln~ !\-l' m lo ti~ iu Q 11u1tu cq ll~x t,,~ 1 r~ 1J..,n·t kno.'K what, they ttar11J, t•i1.1•r,t that It u n ,I 1fo1t~t'r- pot kr1.,1.u.dtu t I hf.?'. comtnun •s '1n '\J,undt•rinlC' JU t Yihal I.I ft Hoy.if ('01u10Ul$io11 wm rcrum hlf'~d bc111t1 \\ tt~h\!U, ts fin lla trial

MF.l.H \ \HY Ullll \DC,\ST FOR Cllll ORE~.

T II rR!'l I• a ,h,tln<t V, slblli1;· tlwt J tam.. ~ ... 111.. '.\h·lh11 rn ,

tnke thar "' or th• <1111,lr,• ,• Hout" ()H tl , :lLO progranuu, , Ju l to eho.w how it rc.:1ll~" Jwuld l,1.• 1'tln ..

du,•t0<l,

I wtt.s t:'likinu to !tt-r Ll1P ofhttr ,Jo)• nbout J11"0Qdc-41!t11w. uod th<.~ <~.JtprP ·•·J thr, or,i.niun thut: ,tntluntt •br ad tir..t• '\ uf1t,t ti,;_ o tUU'l' >W f• 11rc,Krnmnu~ for child,••~ M rel 1u 1,11 1,t<ltimo • t wt and to YI h I tUo 1'Al1th inn,t Harry u 1 :2111111, t rth,luy Yi t!I I ot enoutch.

1'\\'e O\tt'a a tnm en Jqu J, t tit c-hi1Jr11n. nl,J ~t IL1t. "\\'t' h.t1ve t" rtHwmber tluit w, thll}'i fht·lr <'hlld 11 lndl no°"'• 10 th wul 1:ru¥i m th• fuUln· I huuld like to ·•-tt rilnlly 1:Tt-w1t. Ill cia, rnaru~d to 21:11 ,t:' t'ln111 -.c" g and pl iY fir mu e io Lhtrm. 'tha) fh1JUl1J f;f"

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Ul\1 •l1L U 4,ad 'II 11111-•lbl, tho Leauty 1iult lu in 1100,l rn k"

• ll'oul I ro. do l )Olin I/?" J oskod h r

l-s r)•one- (1 d \l flt ,ire nre on thtt rf°r. 'f nf lffl('IOrblJlt 1\:tllt • '\\(! Ur• 11tn11d inK: nL tho 11 rt: h ,ld of n m~w trn, n ,1 "'t ,d,,n·t bww 'llhwthttr 'l\et '\ ill l,e kl k l or m,•11(-d throu,tb.

Th \\ lri•h a l!xhlb,tlc11 i n i.: I thu f I> h , A nuully. It I l,k • 11h1r Jo~. thrt.iWTt nn honrd t n1 k ,,ur progrcu. ,\11 the 1tnprovonn 11

1 l~~ ,.ire! I r!,1 )'ill l,c h•w , c lch 11r.11uy ttck.t.'tt•d wilt· lhu 1 )ttlt)' Amnlc;trn.lltcd e.x111 cb l•) cQl\L'Ct. fr11rn .,

'ln..Tou~i. nil UlG: wdlt•r t C iem !Inn ar1 i fH.--ruUthm 3}.n ht tf•nrtll) h ,t f lnr 1 en no:.. I ,. Ill. I uud Nt•t rt. havo ,~ 1tu1Ilo rttctoJ at the T .. xh1I tiu11 •.. , l1 U<'t' l \.-ill 1,roml•·U.:-i.t ull ti I' e<:1 ,m1,1r.)I tQnnflCt d n llh t.h<" 11'11 u,t ottt!nlNC, '11tC't1•nct1 r for half I hour dnll'): u;, ¥.'ltl l,rotuka ta. ftrogrn.mmcr

Jh: 1 ho w 1y lti1 rci hae bl!ien a lI "t ~ ~nt m <,f thi crlt1rhni 11 s:rn.n1wu h.uvo 1 ttu rnuc-h·1n 1-t, Arnn un flnn,t """ l,l'(!n t 1 to Ul pl QlU!fC for ti ci ln\'I! t •) 11 ••J t on f WAIi ann,:h·•l. how, v , to fl'Atl II flrl~ f Ult' Jlllth.•rs l.,t" 11 lt f ,tn}'. u tom11IA .M f I um o. cu, t,• po11d• nt. \VRO, l.il'h•r ,,ra.1 1~ J1,e Aron O IUI J hi§ u1a!i:ic .. 1nul, r11, ''put Ll1c buo• 1r1' wuh ,. ~1111•1 ulou1t---uilt1L v.tt <' ,, hav,. loo mu.ch ¢f n good 1h1:,,c-. wr. du ihl') rJ1 I I I lutl "'•" \ J 11):. )' hr('thrr-n, it I imp0 ~Lk, t11 JJI f'\r-f)one 11. J,;fJLO.

Philco,, have Yi.~1t1fc Chur:" Indicator.



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Sa fety Valve , \ d<'purtm.-nt in tt·hic/1 readers are :m •il<'d to r<'lict•e th, Ir t,·elings bu commendation o r condcm11otio11 of broadcasring • t u tion s and their 1>rogramm<>s. All letters must be addr._.s,cd Ir, "'Tire Sllfel !J Valve,•· \Virc tess

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TII \'I II inn \Ill\ ... J IZZ. '•I I 'fl!l•lll l'llf><,ll \)l\1F.S. I I

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Your., (lr!-1

\ F.R'il"R DIAL. !t.1 r 11111 I !lh

7 p.m. '"' I IL\\ LIWIT. J1.-,, Sir-fl l\,dun H. Suttor, cit

Tnn1wo1lH, "•r'"',r :.!t't'("(1mmK 1n w,•11 lluri ~ ila)lii:ht '"·\\. 11 ~ ~7), ahu tl1 ll t1,e is , ow f'Ont"I u•d to lh1.· tu" \\D\:1• J( Mr. Sultur 1..11,trat,.,t a r:n<lin ~ t wh ... n 21-·t: ·, u qn tt.e lorn:- wa,·~. l nut hanc- bt-fo.n h \tr)t mthh hs-.

!It'll 1t1\·t" UJlfHHAtu, 11:im wh1fh ht' u\l IL 1ww, U11k-u ha \\ WJ In ~ Jtf rrrrnt r:.t.•i:UI)' IO 11th.,,r 10,lin fnmJ, ltu lif'"1J L duit.111tl! frum :-:ydt1,.)'.

The 1•ow1.:r uf _J, ,•, •\,lG· nn,I ~UL nl f 11 m. In th1 I iwn, i;u, r,,·d:.h. ~x nuJ !rn :,1 '1 • tnwflrth, 111 J?t nrr-ally murh ,:r uta:r D' thu time if t.hr y,•.ur 1h11 ,,ru· \1!1011·~ Jmrnh i1o1 M 8or

{I I Ill , t, 1t . I t11. i f\Clt d .. 1.~ li,cht frotu r1 ,1,t , ,0111t ni ,hw.

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Th },d tur tt•rl••c,m.- ,-, , •>rf11 n/ ,tirj/ , ,/ , Jit( , r1•µt ,., of .F( uwd

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Why Stations Interfere ~very reader should be able lo follow this simple explanation of 11,e cause of uiterference. The wriHngs o/ the Chief Englnet•r o/ the British Broadca$llng C-Orporalion are already wl!ll known here, /or lh;,y hat•e pre1•iously appeared

in this iour,,al. This article has already been published in the official organ of his organisation.

By CAPT. P. P. ECKERSLEY

W f: ha.vt'I Just c:onch1 , J r 6l" on nUi.k.ms.: two it t 11 i

tn.uu1m,t ldfq I l ru4

IT3.JlHnt on lhc aamc ,,·avt lrm:th lt woulU h•• Jtri!'matuM on u y J lU t to ht• die.ate ,, h1.•thcr or not tht. ~ t :!\

,ucct>1i1(u.l; hut it might I nto1 t' t t i,e

lo d11Ctu9 tom<' po1( ta rdc:'V u t lu 1-inglr ,,·nH• "1..1rhwg.

! \\ r.,uM liltt to rt.'<'up1tubt.e om thrng of whnt h.ru • !t, J l.>r n 1cl l~(un•, hut "'h1d1 ,ua,y not ntf J, rt-pN1t1on namely th:.j the" l dnlyir11: prbu.:tJ Ir ! ntcrfertn1 i tw<':en tut1eon1 1s tl.t' r•rn 11 t .. bt1.at1..'"

Jf you h1t a purno note- 11nd tl1 nt-nexi to It r•ln. n (.art.. tw n l<' n 11t-miton~ aJinrt vou may 1r )'o, J t n Vt'ry cart•luJly, hPAr • "thr bl fn,i 11nu_nd D!I \\'~Jl. norn If tit, tw I I t near lo <•n(> an th r rom • thin! vil,rntion Yuu nrn I it bet tt•r b) tutdnJt~fnrl-111~ ~uppo•e J• 11 ta.i., 1 w1 tunniai•fork~. one iii r.1tl Jt" • t J..UOO D 11,,ecnnti. And thP th r at l.o50 o ~N:'tmJ. You will ht' r, lf )ou Ii l n t·arefuU)-. a. •l• t'Jl throbhm1-• notr ~tmJ to tHt\ a."'«·•· -n,f h\h ('} l 1 fl.">(! mh 1 l.UWL Thl.! 11 a fa.ct. an l. 111;-l t Jltll tr>o tinfll i, JKilnl on it. I! )' u '\l II ju!lt nC'Ct"nt thfl pTmctple thnt h, ,, d1 1urb1J.nitt)" 11( clitr,·re-r t ftt!.lth n l produce a third frc-t1u nt)' eq.1:11 to the diffM"m°'"" in frtq i, ur) bet\,rf'fl t rm you will fO -' Jnntt wa)· towtu·«l np J rN'b.th ~ what f111l1 \, •

So fur. Wt! hoY~ iwo ... .sound• (t'f't'llt~nt"h•o;-l.1• .• HUI.- puff o! 111:hll) d,tfr .. ent rat"s t:,f utl'urrN1C't"- n • he fflr p!"O<lu ing auoth,·r " uUhtJ" or Ir wave f.reau,--nc\·. which ~• ca hr 11 d 1rrc-llv with 1111r •· ,rs, Rut tl1p nri ,:1,rml nf tv,u chdurba.oc.•,- o! d j q l (rrqUPIII'.) r1 ,1luC'I~ a .. t-(•nt'' r J. ,,r or th1rd irtOll('TI("): 'T('f'tl uru t1 f" M.JTl fbr 1111 Qrt• rr \\A\'e flt ,t11on •nd l rn ( td l"OUn.Jh tr,,,, tiho "'iH'I'" ~ ~A....,1'11 In the elh«'r :1 11( •ou.nci ~D.Yt: in tl1" ni,.

Thu f t1:e !Cf'n.d uut. fr 11l r-nry ,r ,,rt" milHc-n ,1brnt11,n~ " f',. 11111 j" 11,;,, rthf'r fl.c-., o ".avi•-?en~th l :$011

fTl .. lrt-~} 1111,l bflt1lhfr r,ton "'" ( !i"5,IIOU (approx.it11J.&t1 h :10.? rnetrf ). \\P 1oh.dl I ruc,u<'r , ( trtl ••r r.-..,, 1~1 ):

rmtnl to I.Vl10,U0(1 mmll tt/ ,(,il , 1.e •• !iJl"HI -.Il,rnfl,,1 111. n :Pl"ontJ

nu.r wi,-rlr rtc('h·en, th,rnl, t tlu•lr r.-difit r,. c 111 rn 11 (II \ ,1u ht :ir thl• A,-,1 \'«'IUT ru.n etu1 rrsut t'.'l•ilv ,,,.. to 5 MO vlh.-ttlfhfl• t Pi""'' .,1,l,, incupablr- ,( h('annfl a,riy hff,11!' h 1 11

I MAR Rll A Re \\

rl) LO\ F to 1un..- ml rl,..lf

It I co Id hcnr u,,,. d 01 Ja:: 1 g, I"'' P 11, kc:t'•

Ir \c:r Bd ,re he i; es t I,., I

AnJ 1h~n I ,I tune nd t me Id I l'

Till I hc~rd wav u1 1ar Th< l,d ,by t ~l 1hrr

~1=n To a l tJr

'I h~ \\ orld', I ·1~ t'r, t·urried Bur~ss.

flt' l"I TU

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'

Pace FourLffn WlllELESS WEE~LT FridaJ, 4lh Marc.b, 1921.

l ru,ns,r,I, •• llipA J.,,J., r,, I• /,,,,,.dl'lfll bJI fr. o,, .ltar,-/, g ond 11. l'r•m Ir/I lo rillM, a.,,,.. SM ood Ch, ,Id R. J-.1 ,,.. II u, 1 U,u,IJth, R411 B rtlctt, rrnd lr~1te I- .or,JJth..

IT'S ALL IN THE AIR Coming f ' 4!aturf!:. in the Broadcasting Pr09rams

llr. \ndr w i\hrunn •• J1"W. lhp1i,. I I •nrctor, lotd~• co1 d1.1ct1n:r 0 Honc ,r P" Lob rt~td•hl"Nll,.inac inu11h:11J

f"'C.n.t!J.y, brvnJ.ciut 1.iu,n,r Lmea by 2J,'(' ~Tr MtCunn eotntt Cruni 11

mu,,c:.al tnmllr. iwU :H a "tor)' c•rh ngu w~ furuou1 Ill Sc-otlniid u nn anun111•n L, btaing ufhm l,..,.arJ lu 01~11n nt1t.,I • Itrf11re com:ng to Au truliu, h\l l\UI 1:11,oc::1.11tad with nu,1 ;tellilind, thtt Gt rmwn f'Olll~uil"t

of t.hit 1lcl1i:l1tfnl t'illr I J~r • "tlun .. t-1 .zu I <,rlll'l." l\lr. !JtCunn•• roUt't • l1un r \\'ftgG~r C:<i~ nod :rectird1 i u, ,1ui-, mac,y r irnplete, recor,iitlgl!I t,(

c r dill' nnt. opt.ms bf.in~ thu ,,r.l:,,-1,;<J.Plff ill .AU!lit.f. ha.

~TJE.KDm TO .\!I.U!..\I.S'' WEEK: ::!l•'t• i nlwa>·• r tnuillr n.<;Et,.,:.tate-d ,nth this rao'H m, nt.. A 8Jl~ctal sfi.nu,n ot1 1Hdu1a.l..., wm h1 J."Tcuchoo br .Arl hbi hvsi o·,\rcy lrrln" !run, St .Andr w'a C:i>lhedral o• &mday, tlth ,.hrl h. nnJ the Prtaidur,t ot the Auo-ciat;cm. llr • .Aroc~ will Aj~• U( from 1.ht' SUI.dio on Monduy f.'rruni:. 7th .Manh. Tho ofticUtt "J)~•H1ng- vt the, ,v~ck <Aill l-e: ravu1 rom 1-':umtr·~ 1-.xbib!ti"' llAll on llon\!AJ afl~rnom·. '7ih March. J It a <"Dtru:iilente tbAt ••Juutt,•• t1,1pear• at tho ~tudio that rJs;-ht, -with h1:1 wonrlerruJ Jmiuuionr, •,f b~ and QnJmalit? Jt u bopi: t the Sod,•t)' 11,1ill riot t111ftno uur lo rcatri~t rul eff'aru or tl,,., ,:roun1f of •·c.nh.lty to anin1al1." Mr. nutT. alway1 at? tnt.hu~1a,tu: work;-,.r in thl! cause, ,i ill ~ak to th" rhlldrrn on TuMic!ar 11ight. St.h '\fu..rcb. lllld ::i,lb.lrday niJrht, l~Lb Marth.

o:,; NEW TI:AR'S E\'E l&!t h1-t~nc.-r.11 to 4QG Wtrll' 11rol ltfod with n. ,·,-ty fine conrert ftlarcd f1Pm thr J,omo of ~Ir. \1, Donald. of \\e>t ,:nil. lb 1l\Wl,n,e., M:, TronalJ h.u promucd 1u arranrl'I auolb r e\if:'ninr .tl fu.., hom~ end thla win b& rtla) od ),y 4(/,.; "" 11141 n!,:ht o! JilaJ:ch J9.

11url.'.l'l'' Wenl u1·~r lhe l'llle wilh llJrd.



fJHl iii~ I a.~ 111

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'l her,.·,, the rit:-hl Uuri:~ss rur eHry stt. ,.



WIRELESS Wl:EltL1 F'd,L, , Ith llor<h I

Sydney Central Wireless Receiving Station I ,,t descriplion of t h e

n<'u n•ceilliny ~lotion of <\ mul<1amal <'d IVireles~ at Lu Perouse, u·hich u·ill act ,is a beam fe,•der ,talion for .'\etv South

Wol<'s,

'1i ll J turt rn , t I a.JI .t

Hl"it:ain r <l

-----------------------------------------l'hiku, -<rt .\ri-10,·rat,.. :unoni: Batt~ri.-,



Book Review

Contt.nrud l,om Poi• 1·1

Tht- 1:ial thirty pctt"Otl or 10 conta n fu I h tsi. c1~ Au\llltralia11 dr I 11 .1, f\t' I land c a t &U1l1"1n..-,1 Au tralia..n un,l Nl'.-,,,. Z nl1t. d »hip tl.it l na, ,,t rld• w1 ,. 1hort \\ a\',· 1,t.,ltt n<1, •nd A 11 •. -\U11lt:1n "1 I ~cw Zl'n.land KJDotti:ur ti nn m t• llJ?' hN n~ to ,f11t T h, n• I w.ls.o n.::Ju l •f n th, portion u h~t o! rad1tt dtal r1 throup:hoi.1t Aus. trul:Ji

' <.1mn ,,J UJ> bri ft}, thf:' m.w,ttrr coti• h, nN tn t t.: "' \ .\\' ,\ U t1d10 liuitf,,, 1'12;:· l JU3t a.a tntrrc: t ml( Pi th !r nt ~o"er i nt rnclhe. It is h) f.,,. the '3L 11 , JJC1.Jon <1 1 th kind lhut ¥¥{• havo yfl l\Nm

Our er J y fr n\ • .\.runlr:amttt('<l \\'1rrlu• ( \ am) Ltd, fl, Cl• .-.nt•' Str. r., :,;,li•lne.!,

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Sydney Radio Co. Ltd. 60 CASTLEREAGH ST.

Next lo Carlton Hotel SYDNEY

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The Dry Battery for Wireless M

OST i,eo1•k hrn1liu "it" th( or,hnmy d1°J, butit-ry, I u\ jUJil ho" man:,- piopl, Kr,ow 110.v

it ._.q k.,; a. a qm•Jt1on Wt. m1tht wc-Jl :nk.. lo rud.i.o Cll'd.rs to,J ~-. dry foit .. L<'rit=a an, vt..--ry c1:111111 ~o, both m Lht:! <"UflBt..'ltf .,.f A • .H. nnd C bzn . .ter'~ A. hellt!r ut.:dt•n,.-umditt~ "r Lh,· (1ru1dp)r • underlyinc the iOh(tiontna of Uh-.., to!11n,oditi.M aL.ouJd 111j,t t.o bt1tlt:r en ice from tbcrn, "litdl, u.ftc:1' All, lt

Lb 1l ,, b,d1i Uu::1 unrrJ.J~-~ rndiu L:n., Lhuvinst deric® mui,.t 1 tla)

:\lt1111-.it bl/ )i::ars ••·, Sl 1•rr1.c-hman l,y tho nnmc of. J.tcl•nth pr1rii.Ll0!.J. tire for ... rnnner oC th ilrr l•:tU •1 o{ tu-d.tf. A Uck11pt1 .,n ~r thi wlll Ila v.f rn1erc'"t u.a n h)und:.l\Cln fur thlt "rUc'k-. fuW a J I c:onhumnG" ci u~ luLwn 1>( 11,mmoruurn rhl.:,nd.,c,, or :;;al wnmn.uf.1t·. •• 1L IS btlUu- 1'11 \\Ii, he itu;l..'11..c.'d twv rl~nie-nt c,r i.Joctrv•ie:i, um: , lt mcni be-in~ a z:!m: r•1d rmd thu CJlht-r ch 11umt a carb<tu rod ~ow. t l!l- w,·11 knPl\D th.i~ ulm~t ,.-..crt·thnnc !11 thl< UJ1lv,.-.., , •~1,al,,I, u( dolrl! t lu:lri.c.u! \\Urk. 'the c:nPitCil)· f(tl· th1!! dnic or ·wnrl-.; l r.lO\'i'IJ n IM',l4:Tlllnl~ nnd I :al>11ay~ d••tiw~d "'i1h rt•ln1.11•n '•> :.ume uth1 r fndor.

'HM! ,ii!rei h ::o rn JJ(1l nU 11 belwec11 U,,, ~al :ammoniuc ian,J th,· ~n.; as point th'e of n vult, '\\ h!!t• u th J fft•renc,• f•t't,..·, t'n 1111 cnrbo11 ro1f and I h•· ,at -1mmr ni:u: 1li orHl' ,,,lt. \\ h(n ,d1!1. d. l-0itdl:a r p mV@ u. volt.urn uf 01\1 JJOUJl. th t- YI It , t.Qi bring tht! i:.lt.1". of a r~•ll 1Jf tl.1 t)·pv.

l ht at nmn,0111111 1u· ii nn c--.x-r:.th v.· t luUon. ,w1J U;rr, 1 )' t•hi\• • nio.u iflH)t_., I~ t po.rt. \Vi:.1•11 ih ,.denicnl.ai 11rc cc.,r1.Jicc.led tu!(clht"r tr,• ll t1mJu.d0r. tm.b LUI. .1 Jltlc"CC ,_ f cop\"'r w,n•, " C'hl mirul act or is Jet up 1, ... b;,•un l.h•• 1,tu1rs 111,i the vluliu1t thcrrb~~ ou tnll' An I J.:-ct .. nc i'ill'rt•J1t tn ttow thr~Ju~J1 the c-ut1 ·ttmit Nii~In J'IUJ>J•l_yrng tho ttfl• .. J-gJ,· the zitic I diuoh·cd nnd turruc, into dHC' cltloruJn tuul &ft'UJL<iufa, anri N I hyrlr ~,,

• \.Jutric:1'll l:!ullniarln~s ull u.tle lluri:e..._ ..



P "'' Tw1i,ty WIRELESS WEEKLY H .. 1 •.?':'

\\ urld,. ~I Re,,: .. r1,~ .. ·,1c Ballrn; l'h1h-o.



l·'ri.J, , , Ith ~IJ.r I

'

Tf,,. }.·mm ,,.

Trv jortMr.

Th l\m J (lfL l '(11".,f f,

WIRELESS WEEltLl.

·:::::--::-::::::::::-:-:::::-:·-' -::-·-·••· · ... ~ .......................... ~ .............. .

EMMCO RADIO COMPONENTS

ensure easy reception

TO-DAY th ... n,v.l111g ,I ti, wr 111ak s dfiurnl COlllJJ nr ,11 p II ls c~ <'llll ,I. I 'lien th ,ugh ,·our brt 11,~, Ii, ,.,II "" I ard

c-x« llrntl} laid out nnc: "<'ak p,, t ,11 I i,ml rcapllon.

It goes without 8'1\lllg tl111t you w nt I l r~I Stl )ou can build ur hu, \\ 11h I M '\lt,:(.) parts .- ") dl1ci.-11l rcc•·p11011 rs rnNu,,-d Thry 11,.the lwsl mt' ns o l obtain nc thut c:xl•, f11 e sele<IIYtt,·, for .-:icl, 111 ll I as hct'n L r, ft,U, manuf1Ki0 ,1.-d 101 \us11, I, n < 1111 11, 0011 ,uons iu,d r1 1dl) t sted hdorc b ,ng d1 1nhutcd for ,ale.

n y

Emmco \'ah-e Socl.:el

Manufaclurcd l11•

Electricity Meter Manufacturing Co.. Ltd. Sydnl'y, N.S. U'.

:::::::::::::::::::::::::::::::::::::::::;.:;;:;::::::;::::!::;:'::::;:::;:::::::::::::;:::.

r



Wlll£LE8S WE E KLY

i •.. , ...... -•-•••· ................................................. , ... ,,, ................. , ...... , ...................... , ......................................... ,_ ......... _ ................ ,

1 Loud Speakers of Merit l •• t·oa E\. EH~· Pl.R SI,; • • i

ln,tal :: J.oud !>pr-o1k•·r on )our ._rt •• 111d lM all th,• ramll) hr,ir th .. l ' roi:rummr. W.- \,',,,,,,:,,,,. haH• the hne-t ·"•urtmcnt uf ] A1ud :-111-ttktr-. nt price ... rungini: (rum :!:I b 10 i:!I - - •

• \I.L l•Wl:\IU:m! C \Hlff Ol' lt l'HI \lo m \ ltAill'l't. E OF :- \ Tl:•W,\("fl0:-1 OJI ~io:,.1;\ l<En•,oED.

Hr 11\n 111 H II ~,,

!"111>111N Mncld rH H~ TH Q ••..

£i JO £1 ; !:I tl 1:2

£8 Ill l•

• .£21

Th C

A'l!puon ARHl. ,\mpl1011 ,\RI!• •. .1;,; tu•

.~1t1n2 •• £1 3 -,\R;;s •••. £! AHIIL •• .£' 111 -AWil{ •••• £1 :\HI'S •.• £~ Hi -.A ltl'<"I • £G IO •

" .\ lt8BM . .i:1J Io ., J\1(66 •• .£ l l:i -

''I:, I lwx" Amr I.on i}lc,<lel Jts,! •• , £G JO -

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I \11,r,lt u J\ I: 111 .i:., Ii . "1! nhull •~ , ~ r, l I CASH OR EASY TERMS !

II

\ 1,11 Our 1-1.rn,I '\o. ;,._1(.ulio :ind Eh·druul E,l111,aion. :--,dnl') Tn,1 n l~.,11. i:'•:,,:':.: l"d1ru:1n 2:1rd lo \lar<'h ;;1 h.

W I L E S' W O N D E R F U L W I R E L E S S --- and Electrical Stores ---

i Branch: 2.l l'~i~ ~~?~,-~,~~~urnllr~~~~!~~; s_~_.Y_o_~_Pn_· ,_~_l_11_1:_ny_ll_ur_d_c_rn_s·_1,:. L. . ................. - ... -.... Mutl~,kr. Llq>,irlmcnl :._r.o ~urn :,;1rn~'..:.::-.ytlne>··



J r1ULI' , I .\] t 1 I.

Friday, March 4 2BL, SYDNEY

WIRELESS WEEKLY

2KY, SYDNEY

I' z~ 1 ,.,nty, 1 hr,.

2GB, SYDNEY



WIRELESS WEEltLT

, ............ .. i Vast quantity production has reduced the cost of manufacture ' of I I

I i ! l

I I I I I i ! i :

! I !

10-1

ri= Only

The PILOT Double Calibrated Vernier Dial Note the new price for 1927:

Shows the WO)., lo better tuning

Pay

6/9 nnd rna1', ,·our old 1et up-to. dalf in ap. ~•n".-, ahd

t-2 .. ftr lo ffPN•ffl.

Rusoos why the Pilot Kilorrad D~I is the best V eroier Dial on the Market :

h, hr,

lt h • u Jnl•llun c:tmtnd thiUt JH1\ocnt:t the 1He-l1l. ~t b rUa1h.

l-~ "J I} While n;: a m •CWln 1.,ll>, t..ton5(' n anv-1T ,,. t to tl,<" I uhlic, 1t i~ J,-ht• t fit'apeat lmkeht'o

m•>Uldt•1l n: nu r diul uvallnblft il:1 A1JStrn.lrll to.da)·,

est ma u!n(tur n of 1 I :h

United Distributors Limited i i 72 Clarence Street, SYDNEY I (WHOLF .... «;Al E ONLY.) Sole Av.trahan o,.11'1butol'• or "'R•y-o-Vu.'1 DatttriH,

: 1 Qu r. ~• , Ch~ r !!t, •N••r- .., <'r J r""'"' <iun~ ,A.. llarri SL. 6fi C-h,ttlir;; HL, ! IIIUSUl'>F \OEIAWF. l 't:lnH . lltlll'"•'O'- ,r.. UL~Ll,;S10X.'l'u. I L ....................................... -........................... ••Gt .. •1 ... ,1 ••. SI .... 'I EUil )[.ll '>.t: ............ - ............. - ............ -, .... - ..... _. _ __J



IA;-, 4tl, • arrh, u>:!7, WIRELESS WEEJtLT

JLO, MELBOURNE ,r,,.11 ., tlni; ( n. nl \u,t. \\ t n '• • 71 \I, l.t

oy

Philcos run 3 to I .\lontb, ,,ithnul Rl-charglni;.



WIJlELESS WEEltLY .•..:-

1--.... ....-,,--=---• .. •••••-•••u••••

l

I I i !

I i

! , .. • I

~ ~ l !

f.141.h f ol,n<ntn l<t<1-tllllllf ' • 'l rtJ•rC11f\nt, 1hr ht 1 I lh1tt-\11hr 1,lm11\o:,.

rour-l '""' t 11Jmo,t1, 1-1,r,\ah,. C"olmo"ros

Ilb .t!G HI IH '31 10.

Colmovox

hut can he , ff, , J

, nur,\111,1. :-.upf'r fnlrno,a, I ht \ 11hr SuJH'r t olmtt\ft'I

Receivers l\rr Complrk witl, "" Acc"~~nril'S induding Loud ~T"'Ok<'r-, Battcriei., Aerial Equipme nt, <'k.

l\'othing Further Required.

I ~1 t• ~ufyl~1~ea111~ j

i ~~~ :~ ·- 1.,

lAi -

I f i !

i ' i I :

i i

~I I l • \I :;1 \'11 U fl\11101. U.lCTRll.\l 1.\IIIIIIIHJ\, IIJ\\ 'I; 11.\l,T. I Colville Moore Wireless Supplies Ltd. I

l , lfCl\\ I ~, ,a.I 1 :-. ... 11 ..... , ........ ). :,\ u,t ,. l'hunt 11 ~:!Iii, I : .................. _ ..................... , .. _ ......... -, ............................. , .... ,_, ........... - ..... -.................................... _,, .... , .•.. -.. ,_ .... ,_ ............. --:



Fri<lar, 41h M..tth, 19 7

4QG, BRISBANE 1! ,,ml l( 111111 ~ r

\\ t1Yf.' 1 ('TtJrlh, s \1 tn:

I rnfo,>.

,CL, ADELAIDE t ,·nlr.:al Ur0.1d,1U1tt · 1 td \, • L,-,,n),, • ,1

lriday, )1oro-.r,;c ON

111•a.111 G..1°1) t."11....._ II.St a.ru..- Aql~ i~•I Juett r I 11 M •. 111 .. ~,;hr M.i •1'" JUIWI MTV~ .. 1 ' 1ft • 11-1 $uo,i('II lllU~bftt

WIIIELESS WEEJtLT

T.I -..n-M~ fll'ND.ttta ffir tht 'X'lddla,. L, /u10 .._,,1,-n. nd UDalu lht&U. l,eha. f'n-rr. & .. and O.tr.1.

,.U 1t,.1a" ----aact. Gd ab&rll kt.tr.Ill.........._ ltart t ~ '-• la

&,a.-= Timaaxualtna;U.Jt"l'UIO~ ,..,. 1..1 tt 91 lhetll,,,p ....,._ supt,JW h1 IAII

M.......,N"III Hu,, 1111 f 1'11'1rt•2n Avcra1 a. 1.s 1 .. u 1•J1t•\:LAH :,wurr,

J.fa1inJ flffll[ni.fflffla. t JIJU :T• 1r. .. w. ,M,tlJ.,.. • ),,- a ~ ~Lh'• 1;1f'Tlaa Ua,;,1"1~ 1".UMI Oo..

1(1 ....... .....aw~ ,JoQJ ..... "1.ll. "'"_, ftll;l1aJ' -rb, lia Nc.w•,:lc~ .......

lOJtp~dawi:I,

Saturday, March 5 2BL, SYDNEY

l!ARLT =nms " l"' 11,m I t• O, Ck,rlr, ud 1 hlmff

£ ,((; ~ m 1 11cln Clrunrt1 11111d. tht KiJJ1 • UO I lU. ~lblcal ~•tviC"tUlmb Jrwu tla.e •l.J.JI•



WIJ\ELESS WEEK L Y f'nJ» Uh \[ ( 9',!',

r··· ........ ·-·•-··•••· - .... ,,...,,...,,,_,, .......... ,, ·•• .. ••••••••••• , .. ,,.,,_,,, .. ,.,,n,,.,.,,.,, '" ......... ••••n••---•••••••••••uo,.,, .. ,,,.,,.,.,.,.,,,._

~

! I I ! f i

I I ! i i i

IMPEDANCF.:

TYPE AF:l 42/6

Ratio 3\;i to 1

At 100 Prnod, S0,000 Ohm1. At 500 Prnod, 410,000 Ohma.

NO BETTER TRANSFORMER IS AVAIi.ABLE Al" ANY PRICE

BRITISH MADE. AUDIO FREQUENCY

TRANSFORMERS SUITABLf-: FOR BOTH FlR'5T AND SECOND STAGES

TYPE AFI 32/-

Ratio 3\-':z In 1

'"'•I.rs pl•11•• ,.. ... m • nk• • -M· A IU..\t f"ltlf

( ltl I I , I \1t•' I Jt,t IHd-,- a,.d ~ lh:.v ••

,1un"tl" LTD l~PEDANCE . .. • ., ....

1,W-,-\M'\',Ut I • At 100 Prnod, 17,500 Ohm1. M>~. "•"•• •• At 500 Prriods '10,000 Ohm1.

THE BE.5T TRAN!:>FORMER AT THE PRICf.

Obt11i ftblr at 11.11 R•d o 0, alt'!,• 1n .\1utraha

i i i • ;

l i ! ! i

____ ,. ............................. _ .............. -...... -.... -....... -·-···-................ ,_ .. , .. -• .. ······-·····"··· .. ··



.I r"' lle.u l f • ",r• I 1rif"lt'lll• \kn

;.~Ul:111':!~ b';°'::,rt.:1"•f ,~~:'ii~ • ,o ,, M 1}on:l17 :-.-. f•,.,m 1.h• :;I, ti ••II

~o,u.lt,a J ., • 1-.ort nr it I d athl,f le tutll --· , (0 pM Tall 11 A.1.1atral1Lb It nl t "b

Mr A q, Sw-rti.ru.

:SlGttl' BES!f'TON I ri -.-G r o ("b-11. •rid 4J1tmt,

Nmab9'.ffl 1" ical (h.riru • .1 a;, m. !lo! l'. John ll, rr1• ltitDM' ,._JQ ., Jh IIC J ,. \ 1111W kmiw.!t~nnc • I r, l P r11m tho J~lu I :.t.hill 11on I "

V 8111 I\ •. ~;, U •U • J\• Ja$( s •la

2KY, SYDNEY s":iurda,.

WIIIIELEII WBB~J.T

'J he Life ur a l'hiku llegin,; "hen lloughl, 4



wu,st.zs• WBZXLT F 1·!ttu,•, It h Mord,, 1'' 7.

Made Broadcasting Popular 1n Great Britain

?rice 2 /6 Retail 1,in 1'011a, ..

to pop la•tM br.,.._ca Ln,:- ,n Gr. l Bnlal lluin w • " ~ th r llCh • <,:.ody br ll nl•

h \boli tu~ He"""id<!. It Sain Mu11ci7 ll \holl hr» '1nl1 h lltft\t"' ltoull" ft Aboll'\b,.,i Jn..,ulatora. 11 l 1romolH l;0n1lort ..

• 8411 .. l 'rool -:--tnrm r,O(tr-Yrattblt~l'toof

IT'S SO E,\ S\ TO I• IT, TOO

The Electroleon Co. Ltd. Manclt&'sler ( 'nit_f! Uul/,forgs, I RS Elizabeth St. , Sydney

J>b one )1.\ 1431

l'rt•prietnrie: , he ~rv. t.onif11n n .. c1run \ \ urk1, I.I d .• 1.nndnn, Encf• nd.



I'•

4QG, BRISBANE '~lorr1 .. ,

5CL, ADELAIDE

WIRELESS WEEKLY

6WF, PERTH

Sunday, March 2FC, SYDNEY

' • 'J l ),

H·s J! Hill DJt\L

F•rv Tlurt~•Ont

6



P•i:•• Th ty-T .

.--~-n••••••·d-OOOoooo•

I i i i i i 1 I i ! ~ ~

I i

i

WIRELESS WEEK.LT Friday, 4th ~Tarch, 11127

4o -- •-•·•H-.. -•••-•••••-••---u•-••U•-•••n-HHIM .. •N•O•H- • ........... _ .. ____ _

Jlr11D• C.buvt '1..dc-L. Omoo. ,tllJO.

The lncompi\rablc iBro\Dn in :--cn-n • uperti ;'lodcls



Frid1'r, 4th ~Il>rcb, 102~.

2GB, SYDNEY Sunday.

Jtl.20 • 1t1 t'l~•" mu t lfetllt Alli., L11>rraJ C.th, l~ Clu.,n1~

l.ft...lo -.-. .M rilii,; t1r.-irr from 6-l.. A 1•• ~i(''otatkffi .,f th,i IW-, Eu1:b.ilruL nnO:h ..

12 1:1 ooa. ,C'\,,.. ,fo,. 11

i: ta p,rn... Mi k: ti m fl ~Ill ;.LS 1• m. ·llYt.a f,:rr t• w Ul

l'LllE-(1 a(comilanimt"n f •) "Sou~nl!' d• Cam,.._.,"_.. 11;,;JudJ,. tl•l Tr~· ll<Jrb1rl 1r) Ahe!Dd"1A H,..S.r At H~ SJhM, )I Jhbt-f t; h .. t E-Tl'Dto ASl"Ot"'Sr'l-')11 "liT~ 1'1111,tt ~•1 .\_ll•ffo," ('l"l)ffi ~la Op. II

Nfl. I, .,. 1-<..-11 VHI Ari , • ~,.,·c-1,"h lnpr1111'1l ~-

I•• · n. J..only s,~, tr.a1 Mn HM• 1, (\ tt>lm Obl,ra1-. Mo.le• llllf'd"'

lk -,..•rtPh U.S. lltah Aru•t as..i r1c• H,nd d1

TL1 l110 l'Ofllll•r :,oac S • a rr. \' iot,l111 .0!11 by c;1i.uleia Rauh

M' ilt•t 1 • fr1 m. llur Opna i'ha ,,..,.,,..., rLi..'"" M ,,,. by ,; .. ,.!tltth J pm

1 .. Pttl~ .. U ~lk t. .. flatl"llr It.'" I air lt'Pfl\, 1 "")1av Surh1"

Srw-ir A S11n tt>l't Nlc\t ((Mini' Tnnrna \l"'lllt S,,atrlr:.- u .. ,ut!Pk'lr 1•,wu r r ,..,. "'°h••· w 1h rLln • r.-a• .,.,,,

I. ~-"',r:actard, :r •·Mtnu,r,1 f(;,ad.,ntt J "'&-r•..-ilr • r;,i,,:J.1ml

M,a1oea lhrdcr ad C harJ t. ,\.t the, psaao lhli.-J l'i1t.nn. Attompainiat 1 :Mr, II Yrw,t,,..r,.

• II 1•111 T• Ii !tl5 il..111 Jll.rt f(tf t- ..

a«.Mi•nhnC'nl M

"""" ,,u "" vt,,n ,c4,.J Ly )\, 'f •G r"' T•lk-il ,, "·" "tu '"""' ' 111 "'"· Cl .,_.,.

3LO, MELBOURNE

WIRELESS WB.EltLT

5CL, ADELAIDE Sunde,-.

4QG, BRISBANE 6WF, PERTH Sundar :-;und t)

l'hllco Ballrrfo, ::-i,n e l'ou111i- in a 'irar.



'IVIR&LESS WE&ltLY I' ,I '

ffli'' °''''••· ~ ~ -

··--;:.•--------PHILIPS

Famous MINIWATT Valve Serles ,_,. le• t.at •• PHjup,

Th•• c:1,oo,,. th, .-alu In th.- tea\,

ON~ VOI.T AI09.-II f • U,1 •nd

I at f-f b amp. 9105. - A do""'

ti ... , •• u .-, p

THJ!E.F. VOL.T A310,-11 f D, ••d

1,tLF 06 , A30ti_.Ot: ar.d 1-i

L F 06 p

tOUR VOLT \<409,-.D ... t •nd •t

LI 06 mp

A•IO.-HI \mpL•"• 06 arr:

A•U,.-.1 F' ff,.. • • ront:r \rapl1t: .. , f 6 •mp

B•<ffl Aud o \m I 1,.. I •mp

l4'll. uprr l ,.,.,., 'V• lu· 15 •mp

SI>. VOi i AIO!.-li.~ D-1 ud

!,· LI 06 omp 1Ui05. Aud, \ -1 ,

hu 1 ••P..

PHILIPS NEW NATURAL-TONE

LOUD SPEAKER

--.,~ . , .... A.

/ , ~ -

. ..." ~~· ~

C:

The Popular PHILIPS

Power Socket Appliances

,l!rr • "'"W ,.. OH,0,IU)' II

R,11d10 riuuntf':n,rn f' '"" 1bfu,: 1h.. 11,., ,..,.,,

·r .-r 11'11 '"'"' I I t k,. 11",Un~ ~"'" to I, .. duwn dir,. I fr-om rh ... J\ C L/f" tr1 l ttht !>uppl,-

HT SUPPL\' UNIT ( 8 &ll~r, Elimtn•tof) t. ,. ... • •mootl·, U.111 .. ,t nK l\' cuu.- t •t.ipr Jy •• ' tLf'I• C .. , n,.w• from S lo JO walh or l'

N"•d• -n,, •Hrnhon l'h•r,- L• no A. C, h11m

.La1h a l,fetun•

fULL-WAVL BA 1 T£RY CftARGERS

ln T"'o Type• "'lu 4J(I-( t 'fl!'• 11 lu

ti woht •• 1 J •mp, ,.,_ bb-(h,1t1,., up 111

b volt. •• J or fl a,np• fl voha • t ) •mp•

1 1--,ol-pro~f, ,Ju1I, •l"'ffl'" to 1'01\At'CI

~ ...... ~I- t,I 11 L I i~• I De~ler• • !f;l ~ I J--Jti!1,j :t:1 •] [•J

Ask fo t

Pamphlets

--· u

''



Monday, March 7 2FC, SYDNEY

WIREJ.ESI WEEKLY

2BL, SYDNEY Jll11r1da)'.

v~n· .. M 1usu. , f~ 10:,.,. f• 0 l.l It'. attd tltltn1.._

N1 tJll Jltnif!'•tau!111 '" '" t!w

11\ t • m. W Al brr r .. r•arl JO JI Mu frn t ru.cr•mn,tl- how 1J1e

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p lJn Q J• O. t·•~ •JMt t.:•na.1& <Jlaur dtnr11-

"E..\RL.Y ~n~"O sr.ssrns fl , •• 0 J' 0. CfOu an,J C?ii'1,..J Ill 11.-.. lJl!.C"H Ot1vr-,,it Ju I t.tif K1,td((lll..

• t/J P.tu, lt 1&.I "' • •1111111! tmm U • 1iii;,1llo.

8fl.Cl.,\L COl"!-t'TRY SEB!tlON

'7 n Q r ,0. l''Ui· 1 artt1 ~~ hl~ra. A' 7&1lau )11 rrn~•.J 1..and., • 1 f ,r.aou

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Pace Fort,. WIRELESS WEEltLT f'rWa; 1th Mar<h, l lt7

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1 Announcement

Jefferson T ransf orme:rs

: tort .i.

18/6 Ratio:

3 .75 to 1

Ll,ll nur \L Cit \R \I I 1-.RIS I IC~.

'" .at-H•tio 3.71 tu I.

n,- 11nf'd for opentintt • h h .all ,.landard luht-11

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fl. O.C". flf>-;11,b,nre ,., w.wi,n,-rnmar). 1000 o· m, (a.11prox.) Secundary, f>W 11 < hm • C•T prox.)

18/6 Ratio:

3.7.1 to I

Prim,1r) nn l t.t"~ontli11 ~• wound vr1th Xo. 10 rn:u,1 J.·<'o\·~r,.,d copper w1r~

Obl.amah1l" (rom all Rrpu1 oblr Radio Dul,-r,.

SOI E \l ,Jl{\L\!sfA:-; \GE.'\TS,

Fox & MacGillycuddy Ltd. Daily Teleiraph Buildings, .King ~treel

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WIRELESS WEEKLY

2BL, SYDNEY TuuduJ

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From k y Pole to Tropic Juni?le: n urge,;Ji.



WJRELESS WEEKLY

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FARMER'S Standa rd 2-Valve Receiver

Complete • ilh !\,•, c11&onei..

Price £14/10/-.. FROST " HEADPHONES.

J I ost lk1Hlpho1le, .,.., hii:ltl> crom1111 n,l cl 1111 ;ll'llltlr Uf rt, ht~11~ re' nhl n111.l ,1,c111 .,t., I ho fire II rrf cou tnntly by upcT1m,•11tc . "h ueed n i){'t!er rla.•, .. r ])l1ttne. U n•J bc:tLCI' 11,ltliuun could lie 111ude to yu11r I H( f'l \ {'J*, r.-fre , . . . . . 1:} -

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J·, :J.1·- lth ..Junh, lv:...

New Columbia

Layerbilt "B" Battery A radio"B" Balteryof entirely new comtruc• 1 ion, made ornat layers of clements comprcsocd one a11ain,t the othrr 110 !hat l'Vl'ry cubii; inch inside the battery i• completely filled wilh electricity produc• inc materials. T hia means JO% more po,vrr thon thal of any other battery of the aamc aiae made or round cells, I t means IVC&ter power, lonc~r life a11d far &reatcr economy thiin It i, possible to ob1ain Crom ,my other battery •

Columbia Radio BatteriH

- I lia11 la,t longer

1J.u/6t1&t•Mi~'f-~: .. "' :04-li lt.- l••"• S,fo1, ~! I w



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Pol!e Forty-Thrno

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WIRELESS WEEKLY

l -- --- ----~:~:: :-;~;:~-~~~;=~-;:-~:--- ·1

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I SCREENED COIL RECEIVER I 11 1 ! Issued two week's a.,:o in " Wireless Weekly" I i ! : : ! !

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i ~==,;;;::;ji,:iieeumm;;...-====~ i 'lhi, "''rk1ng morl~I atluall) ,·1,n~ln1rferl from parf" and ar,.,..-.,,rie-- from na,id

[ .lum._,' Jfadiu lle,r.ulmenl. is """ nn di,111:t) there al :!~ lorl.i :-tree!. Sec iL l i 1mml·dinh-h. Jt i!-1 tlll C'Xfdlt·nt c,amf)fo ot n ... ,,lecthe thn·c-nih·,·r, i.rh·in~ unc,pcl'- i I lt·d rt •nib, I ; The.,r high 1:11ule 11arl, ,,n· .,II ohtainnhl, .,1 llalid Jom·,• Jt,dio !'ihop and pnnrl, ; I '"II he- drilll'd lrt·c (>I char1:te and all ,ld\kc and a,,i,tanc• t:hrn Ju th• run,lruction. I ; l Rndinn" lhil-cto Pand, :!fl,n x 1-llrndh, c,d, •.•.•... , •.•.• 1:; : ~-- 7iu x in or m. 1h 1~ nel. JO S 3-\'11!,c :-:neket , 3 carh ••• !I i. i .!- 0111,;; J•:m n:; L f' C •ll<leni«;rs, :1-1:rn1ncu \'crm, r llials, !1 G Path. '.!8 H ; : 16 l u.:1t :~(I 1 n002'l l~1.ol Coml•1n~er • 2 fi : l J ;;.

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; 1~'5.!' Filar> ·u• t'ontrol J, ek 2 9 I -d,11.cn B11,b11rs ••• 1 f, i i , t 1 J,mru O .\ !l,oTrnu f imu. 21 ti iuche, of C'I ·rlric hxht 1le't ..... -trl. i i l • 11' A~ 1~-•f•r111- 1-Hatl,I\ Ctir, ............... Gu. i ! -:1. •u · rl!n ° u., "'" " 1-1: ,plm:1rrl. J!l-111. x i•-ln. x ~-in, 2 6 i,,,,· 21 1-:-:crc·••nE•I !',,ii, of ,;pht primnry

1-F,xed r· ,upling Plug 3 l.,,,o . . . ......... 11 tl ::-.\mpnlt.,,. tu ~u. Ynh, 4--oz. 1'n. :111 I•.< ,,. \\'n·c ........ 1 9 l.

7 fl .-:irh, 22 6 ,

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D AV IF~ erui~ 0 N £ S' j Radio Dept.: 22 York Street, Sydney. !

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W ednes., March 9 2FC, SYDNEY



WIR E LESS WZEltLT

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I Duke of York's Visit I /

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, Liaten in to Historical Events at Sydney and Canberra

Our Seh are 8-.ailt cnly with F 1nul Part-Im En')" Dd.a.il. I Bl~t I i I

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Pftlt ctEAtER UIUO"\ 1"

!11 thr J'&"' th• d••,. c:rf t"• raitJ:n pubbe '4 U.,t .. to dU'!aDl da1"lCII .... "-a ,a,.._.,~I• for Uw mart.tif.u,: r,, •nd tu.• ftf t111•tt7 ~ bf ndMt fr.., •11~ tno.alunft'II,.._ wh }I ttahodJ ...-11. (.u ·-" •ff JoN,,. .. , .... ,.J1111.m61Jo11 o! dld«tnc anai.rial, e,. srf'lf~-T rf!k.~ l.b:rou-sb tJw 11N ot lant'r•11• Tti.N-'b'•uf.-,:noe-"'-ko-.-

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,n pm MAR\', )l,.R'\\ QOMT. c.:os-Tk.l\RY •

l,;111.• Anlltt.l' anit Hl• WunJ,rful RwurJ • ,..,. p t11 Ar-au.- an,1 .. Hfl'ltJd • nm .. ,.,

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Frida.I', 4th Mor,h, 192i, WIJ\ELl!:SS WEEKLY

"ll"ni•fQQA'1 ff ... ,:..11,. \r,r,in Sl:rinc IShlJ •

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4QG, BRISBANE w.~nr.-.d11u.

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tiir,t1 -n,~ 1.hnly blw .. ~'-•• • "ti llA,l• ::ita1ulard • r.,.,.,

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The World fl) er,, corded nurge:,,s Batterie.,,..



l'ng,, F ift 0 TI f WIR E LESS WEEKLY

!"" .......... ,_, ... , ............................................... _ -·--·-·· ........ _,_._.,,_,_:

I Don't W aste Money! I ! W' IY <0nl111u,. huym'? the ordinary cheap dry 1

batk1 •~s w h1ch <JUu:kly lx-co1nc exhausted. and ~ !

then must be thrown away ) Your wireless deserves \,' i the best, and \'uu cnn buy a Plu.lco on such easv I lcrms il,.,1 no questwn of cost need be considered ! ! \ Phtlrn w,11 save you pound,. in a year. Thi, ! j pc-rfrct bnttt'ry can be used for two hours evC'ry j j night for two or tluee months and then be recharged i j at home !or a lcw pen< e. By instalhnll'. a Philco I j vuu cor11L111e economy with mo,c power, pure j i recrpll n, I ng Ide and pcrfecl s1e1vire. j I ,

! if!!i;;W I I :

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For Pu rtk ula rs

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! B M

emm WORLD

1 R n. ;_ , ...... -............................................................................................................................... ..:

Friduy, 4th \!arrh, 1927.

A Chat on llOj J:ty

Whl ilo, J mt NHI to ~t!I UJ'I with thto chidr.N1" on Lh~ du} thfl Dukfl- and tJu~htsa nrrin:7 L<,yolty, of cour.se, hut anu·thir,g 1t1u1·..-JU::t:;onal ill• tl"re•t'

I hft.\.., rt-•i.,l i:.o much ahaul tht-m that thq· nrt' hkr old fr1~nd,. rayiria n \'I 1t, rrn,d I d••url)· wi,.h to K~ them II lhto Ht-!'h.

W" all ha\1• tht• Mmt" (!"-+'"lh1Jr al'IOUt J:1, ·nit·, •\ hf'n tht- n.•prdt•ntnL1vr i!, (ull of kmJBnuu. human natur@ llnd n,llr!t.

I rould ~hf>t r the Prmce of Wale.JI nl1tt'! a Wt"t.•k rur a )t'Rr. lwcaU"I(' he 1· ro:r Jdl"al a.f a ~uod toporl, and J expect lo 11, .. 1 lhr •.11m\" v.;..~· in r~gard to the 111111plt •ht lit tc I f\\ t!t'l folk ur1 tht-1r \\A)" her<'

tn the- Jonsr rnn 1t 1111't Qnly tht titfo \\.hu;t nhrt•~U m,•. but lht< ltu~ rnl'l-nhoo(t ;rnJ ,, t1monl1t10f1 H. covtrs. \\ h('" ih, :wo cumb1m.•. ·why l &t"t my ula.rm l'l9t"k for 1 • m • t,nd nut ~me ti f't'IA" 1111111.cc~ In th)' pock"t a, an ir\$W'Snt'(' ..t\l!A.ln.st the clJC"erful noise l i11h•r1tl h1 tn.l.Ult•.

Tub:~ JhM litng 01° All oatterie.~ th~ lto~al Jlh1kn. \\ih~n J mt-l it at thr ltnd11l ::Oh.Qw 1n th~ M.-cuon devoted to th.- 1ir P of ~ ttW Sy!!h\nl Tl"lt'phonR l'•y., Llit., f (rh Orn1 I -.honld hft my Mt lo a e:enuint th1nt,;, to qu.•lit!~ u Wt-II a: 11th•.

.Merely tbllinr tht. 1?reat ncha.r,re~Ut• radio but1ef') tht- King fJf •II h 01.,t rnou~h for mr. Jf l di.d nnl b n~w that. 1t ,lttse1·y<.'d_ the tale bec• uH uf l l. magruflnnl ~ .. r, itt-, for,g tiff' arnl Kun1,m1t'nl running. I .....bi;ndd not l""l\·ti, il '- N~ond thoUIC'ht,

!'h•· flU~f'l1an I olway.!'I; What l!I t'vnccu.1'•d behind tht- tttlt-'!

A lo: un)' 1-'h1lco u11.e.,. and ht1 will h II )'OU thut hl' h.it:it ~ovl'd pound11 a ,\>t:n.r hy tlin,wrni cn,~y hj..., onhnary df') h.attf'r:r and inl"tallm~ o battery v.:htcb h1..: cam rt>c.·b.u.rl(P at home for • rt'~ 1wrh.: · t\""J') tht~ or l•mr month"-,

A11d nu\lo that ,-, iu <'lit\ bu} ,1 Ph,ko ~ax t111 euttv tl'flTI~ fri>m New S:yuem Tt>lt:phono .Pt}'., 1.lcl., :!80 t'A'-llrrtagh ~lr•-eit, S3i·tl1H•), tht-rl:' i• 1111 ~o.rihly na.oion "t.·h:i, you .c:huuht n~1 rn1;.t.a.l thr Kink of B:..ttt•rit..x. un it~ 1hri•nf' in )ullr \.umf" ,1nd )llUI' ufl'rdion• 0



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facto17 Rt"pr,t1ellttU.i\leJ1!

INTERNATIONAL RADIO co .. LTD. 200 Castlereagh Street. Sydney

I '"•9l couRTE.NAY PLACE, WELLJNCTOrs. N./ I l i ~,.,~,._.,..._._,_,...._..,, ....... , ............... uu,,11,utu~.-..,..ulfu_...__,.,.,_, ................ ,,.,..,,,,,.,,,.,

Frhlny. 4•h Mar.h, 1!>27,



, ,, lt J fl 11 11.

j

WIRELESS WEEKLY

Ever-Ready Radio Batteries

are always fresh

The •· Standard ·· Dry Cell Radio Battery

f'tkl", ~i •·

the. ... h:f. R~ady Radltt ... "'-*•ndard •• Ory C•U. •• llh1,1 r•~d, H fitt~d with tW('f 1k: TCW h:rmfnlla,. •rut folDC&Ht lntrodu.::Uor, hU .mt:l wttb ,ate.Al •ul'c.tu, wt u ""'roanYinac, lh lmmt:n1r JoUpecrlc,rUy o,·.-r an)' •m• rortlNI coll Sl,e. 2 I ll &\. \\ •llht, 21bo. Al•-, fo, tte-llt, tl"lephone•• ••analhnc anJ cl«trn•mc-dkal appar• atu,, 4-:c.

" Wanda" Plug Radio Battery I ht• 1Uut1ratt-,1 the nrw r•dJo lti•b -ten.t1on

• i,,·• Raltk"ry. whu:h c•n he obtaloe4 .J l t. tt;,; ur 6:i volt,. t.tkd w,tb • \\anda rlutt, and:: ""'"' w h·rnunalt

PRlt'l::

111.all-1,,_ t,-p.-\\P~.flt,,.v,,»lt 'Yh 'lftl.llll •b"• t)'JM \\ t•. ,t~ YOU I :l 6 ..... 11 tl-t.t',hJk \\t',tJ.t WQU IP'• 1..-.. 1,11 auc.ly,-XP,.:11.~ .-oil IG • I .i-11n' •uor. ,,.,~ \P.42 '-Olt ~ I • J JIIU lAnH lit4t. ly~

""'UIJC'T ~tvl<"C'o 1'• ~••It ,ttc h

t •••h1a • • lwal 1 ,.,,,,_ t 1 •ii•, • •' t,,,, " l • ••ro ,-I • aiJ,ply I•

The Ever-Ready Co. (GL Britain) Ltd. 1 63 Pitt ~trtc-rt SYONfcY

........ ••••••••••••••••• .. - .... • ,, ............. , .. ,. , •• , ... ,.,. ....... _ ..... , .... , •• ,.,ouu••H-utHtollht• U••n••-••



Pae• Fift7.Six WIRELESS WEEKLY

New Price 45/- Each

The Tablc~Talker makes a friend of the eleccrica.limpulso

..-.c0Ult1C1 ,. the science ol eound. R.td,o acournca a the ac.iencc o! translormm11 the elecencal llllpul.., min, udible ~und The clcnrn:al 1mpul1oe is a ioUy lmle Jellow "ho nee.ls to be consulted 11 you arc to ett the ~tour of rum \Ve·" been makin11 fncnJa rw1th him for se~rntcen ~cars ,nd the T.iblt•Tulur u but one re.ult of ou, effort... The aoosc•n«k horn Iman. ck,iru and more rounded tones, 1nd the P.tent lmarcnJI ol -.h,~h 1t 1> con~truct.:J cluiunateo any

~

1 aaei.uon cl h. rshr.e,s or metallic rcaon.i.ncc Fitted with an :i.d,us~:,blc d1Jphra11m, It 1s fm15hed ,n a. lcu.nt aha.de ot neutral brown Hc111ht Id', bdl 10•.

• A.IA ,. .. D.o.c1 Jo,,- B,aJW., ,

Now 45/- Each !'AC'TORY REPHE:-R:--TA'l'I\ ES:

International Radio Company Ltd. 200 CASTLEREAGH STREET, srn~'EY, N.S.\Y.

Also at 91-98 COURT.!sXAr PLACE, WELLL'WT0!-1', N.Z.

$1 d.1 , Ith I urh. 1•1 .. •

II i ·n.

4QG, BRISBANE 1 hur ·dot.

JIIIJltU,Y SF.I. ;n..-, tnp-. Marktt\J'='!>Ol'P """"'hit>rl"fn""• •

1io11. -rt O.Ur Ma1J • ~nr11 TM U•IIT Staad.A.N N....._

I V &> m F'....., liuLe-1 C&r[loollt I.UDtb lJ.ou.t \4:Q• l'la71N b7 Uot.l UrJ&.on S,-m'Phoray Ord1.-.1ra

p m 5 rem tbc Obecrnl,,;.,.,.- f.trnd&n1

'l 1:: •. 8 a:~ Down.

AM"Ut).UO".: SESSUUS

\l,,.u.-r ~-- AT\M)Uac!I-M l.t. S llf ilatJ T JD• -:,;.qtt;al,

"';ltnl'l' l ;s.:":10~. II .. l"""1JNI s. •••. ,u Ta1la OJI~·

bJ !ltr W \ llnidorft. I! 1 It 1ft. tl1'tUlU (USt l.HT: lh,. p,.._

•n.mme- wilt lo ..nkr~,.._ with lh,,.raa fo • Mfll'I •~ dmn:h M!IIW' It, •b• ~u•~1a11 l h~rdt l h.olP (('tffld~ctur Mr A,uac-omuff 1. O•crtMN u»ra.,wl" h:i:"IU' H.•,a1 i;ti, Orc'hontn. INl)nrn .ok>, ..,.hr- rti, n uf

i•tm•" H la,bJ .\I M•r, 1,lr!'l:ri--h lot.

~rJ~·r• t,1!:;;'~\, l':!rr!: t~!•.P~• :.~:u ~ha;,~ ,._ ti,,t• t1hlP11 Hick'" •~J,.,..,,ttl, 'llr J I Con1wrll ~10 auto "°Nlitllnw .\Cuc ·• Drl kioticu, .M1t11 \41!,1, .. .t B,,tl 19CIIM.ll •,;:;-u.; J •t lr<!1' W -,,"' '.'Illa. F.i ... •1

.)felMllftaft uur,:~•1•n, bullPt1b W,n.-1'., \Pb h I .Mt$" '4;. F ll1•-rrlq:

tn,1,,t1.:h, '"Th-! \:.ant uft I If. IM• r~ ll,.- llal,.11 lh"d,r-1.ln 1 1m , m laru,ro, ~ fJJd Jwma•~ - )IM ti 1a h.rl.-; M lf,-rJ011U!u '.Th Y.n h111 I 1 f'or"4' tPhilfli,a;~ ~a.I X•r1 )frS• th,

~o,m 1\1 1•11111 F\:,1N"&lot Fo::r-'nt r C,,.,t'1 l'-"l,...,~t' It -Ht>t :-<n II Aoln" tRk-b-. h)n ,.h tt, .. tia.k-tJ Ptdt<kl,. mruo,,,.flr11no. "I'll affl• 1.,, Yaw" Tl"'IIMJ»," 11, i.lM'I 'it t «~••r fll" .. l«!fort, ·11 .. t1,,1b1r r"u""

•• I'" Jo•II• ,..., GaWr t11'l•h...rn1 11-i l ra O. ••~fy A~ P-11llr.'"" 11,"n~r,;). ~II!" )la1l1• G•I wh lY J lot1 wlu, H.tw"b<>n Ka1.w·• tC.toall!'III, \I J P. C1,rnw•ll. tm,1•k.l.. l ffil~1l)lf1•• Hr " • "",ot.l H.um• .. Ml'" ,. rl• K.-1 l; l0(1'1li11 • I"- ··.~.,. H4o.' •~ J.•'I• a lo4lU111 U-1' I I~ ff.lf'CO). :Ml• ')I ,!""'I 1W-Jl • l'IQ,-.J aot.,, -1.ydlu f'blh • 1M tlr i""~l. Mr. ~,.,....,r .l'.-oniriu,'"! bv G111 .. ,.,, Tl.•• ~ or~hll!ltra, .... 11,. 'Th•re



Ft1dn,;. •HI Marrh l!.l:!7

N""f'' "• • Pal I kP Y.m'· J r ,., l U • Ott fJ t,,-. mr,'"-r""' ._,,.,.), A Da-.n-1 a.• ft'• 1 t a \Un. M'ltl,. 1;..-.ll6htlJ'

ta 11;1 •lM \'.,u 40r ~u, ... ,. t;lt orc-tt-tn

1 I ltL !hr (,-tJ) l:.1111' \'lo, 1hr, '-• CJca., JN, .....

SCL, ADELAIDE ThuN-tl.,.

Friday, March 11 2FC, SYDNEY

WIRELESS WEEltL"f Paire PiCty-Se ... n

I 1 1 I

iDE FOREST! / The Greatest Name in Radio! l l I

I I ' . I

; i I l

i l. ~ i "4aiillr ~---- i ! •,; ! i Specialist Radio Valves I I Matched _fo_r ~very Set. I i ,,,, r-• ,...._, ""' '""'• a.., l'ric, I

!,,,,. D.L.3. Dctttlof.Amp. 3 :0256 22½ to 90 U.X. Riise 1

133 1

/66

1

1 D.L4 Special RF. A.mp. 5 22½ to 90 U.X. Bue D.L.5. Detector-Amp. 5 ·25 45 l• 135 U.X. Bue 12/ •

I 01.7 Heavy Duty Amp S ·S 135 U.X. But 24/ •

! When you buy Valves / I Insist on De Forest! I (_ .... ._ ... ., .......... _ ........ -• .................... , ..... m,_,,..,.,., __ ,~_._.,_, __ J



P,1C'O .,,n,. E tin WIRELESS WEEKLY

A Radio Bargain 3 Valve Set in haud:,ome cabinet, complete in every

detail, includin&-

Loud Speaker

ExJde Accumulator S4 Volt B Battery 4 1 Volt C Ballet·y

Large Valves (the b~'il) Aerial Gear

A guarantee tt'ith every Set

Two Prices: Price • £ 16 17 6 P1·ice • £ 19 1 7 6 Deposit

Weekly 1 1 'i (> Oepo~il

5 9 Weekly 1 18 6

6 9

\Ve charie no inh:res l for these eai;y terms.

' I he ea,y term, also apply lo country customers.

Take one laome to-night!

Radio-W'Less Mfg. Co. Ltd . 317 (ieorge Street • '\ ONEY

Telephone: B 5747



I rhlny. 4th Mar<h. l 0~7.

Saturday, March 12 2FC. SYDNEY

I,.

' JI.,, fl

WIRELESS WltSJtL~ T'ucn Fifi; nlno,

1·--"-" .... ""•tt-•• ........... - .......... " ............ - ........................................ --.. ,

I Results Count! I ! I !

I

I i

I I

\\ ould , ou h'-e to hear :n.o 4QG. S( I . and :i \ K. and man, olh,•r infrr-Sl11le i;tationii D" \\ell us all local ~talion,q on lite Loud SJJl'llkt•r'.' You v.ould If )OU could llfford JI.

\\ El.I,. , Ol < \:,.' AFFOHU

1.001\ \T 'J Iii': PHIC'CS' Tnhli· l\lodcl (a) ... £1!1 10 11011 \Jodrl (b) . £:!7 10

l't•'l b rl lla I r O k l'loor ~!odd (r) . , £2!1 10

Poll, heJ R~ wood All l\lod l'-...!11d me n ap, 11,arnnc . and ndd lo lh

furn Ung f lh hom Ea> Trrms.

\ ,mall l)ppo:;lt prrmil'l , ou to tal,e one homt'.

ng w. then c II in • nd ee us. r fu1 yo ll'fl •If ) ,11111 ure to

for you If the v;ooderful value.

Radio & Electrical Supply Co. I i 40 PITT STREET (near Quay) SYDNEY

i Phone B1817

l-H-M••···· .. · ................... ·-------·------M-'



WIRELESS WEEltLY fridoy, ltn >,farrh, 1927.

elettes and Optimism

PETO 6.. RADFORD

ACCUMULATORS Jk lxfr.nn ,g and Elie uid,.

PowER

JOI I'.\ AKNOLU UELWI \ E~ IILILUl'-C

L&A\ ltl't.:1' M t.1:ol'R~t:

a 1 • mv 1 t • .. . .. C\ t t.

an._. at •

Mullard THE· MASTER · VALVE

• ta 11 t,.1,Hd,

:,.tulLu•I \\ork1, l.11n f, n i-:na;land.

llnTH'° \Ill 1: f'RO'I E ' "ER\ IL\01() llh\1111 I'- \I STR\1.1\.

Advrrl f'mf'tlt of th" )Iullud \\: 1rtlf': ~ :--flf\h I' Co .. t,1,l 1 .. :\tullnt1l Huu1w."

1 nenmMtk

Str~cl, I.and r, \\ t ~- J, I ricl

VISIT THE EXHIBIT OF THE MULURO WIRELESS SERVICE CO. LTD .. STAND 40

WIRELESS EXHIBITION. TOWN HALL SYDNEY \ R~prr~nta1..i1 ~ of Sa,dn~., 8roadta•Unfl .,,ollon

2 BL u:IU M in aUcndance. ....................... - ................................. - .................... ___ ....J



WIRELESS WEEJlLY

Describing Air Stunts

T el.I.Kl~•• ot SLO t i• In tor a bu y rn on in tl.c n<'P1 {utun·. and 1t rc.s urc and I u t

bt' ILi d oUI to U fu11 I I ll e

• 1:1u, u.1.1m,, r \I.ml.

Pa ~ixtr un'".

••r , ...... n-,.,.., 4A•NI 1--. nf'(: .... fr- fr•• f.Nlla,

nw ~ ... Sp .. _.1,.,.r, r,.., ,,...'" M .. t•ffte .._ilt1:t1HiL CI/Uj,

J ~Jae1ra feral tanr• I ,,oplr4.,. Wlrr-4 r••Pl•lr U/

W. l\tALING & CO., 30 ~lark,•t Strr~I SYDNEY



Pu, 11,xt:,-Two Wlll&Ll!:S• WEEKLY

All Readers' Queries Answered Here



I rid•J 4th \fur n. I · ' 1 WIRELESS WEEltLT

R .S .1'.C.A .. 4mmal Appeal

l 'bllros u~ht!r in a nt\\ Radio er11,

! ....... Wi;eless .... Cab;net: ...... , . ..r. • .. .... : \\,- Ml 1 )OW' .-n •~ •n4 n i ~ a • r ll t~•lttmc o •~4

1·

; .._ S • - • aal

! THt •OHHI ~ l 4tll"-'• r ~oau,. ! h f-nRlll:•8 SIKtM. t4~1 ;allt~(l, j · .............................. _,, ............................ .

frh·; .... A.W.A~~di~ ... G:id~· ! 1927 Edition. ! Larger ond 8-ette.r lhAn e'1U.

f l;'6 f-'•eu 1,1f mu.lualJl• ,n(on,ulietn i to w,.-el~u rnd1\l11..att•

· Price 1 ., Poat 1 /2

II An1il;:::,dR~;e1,:·~:1:~) Ltd. ~T C ta,,.nr,- i\1u.-t 5ycfn•.t

\.e.•--•u--•-••-•---•--.. -•--•

~t'IBELESS :.~~EKLY



Pa~o Sixty-Four

i I• N O AERl 4 L

ii I

NOEN!n\

! i i i ;

j ~ !1

:, SW

H. J. Hapgood Maoufil-Ctu n Pro.du u 1. L d

Challi1 House.

Martin Pl11ce :: SYDNF.Y

Wll\ELESS WEEltLT

0 AISABLE AT ALL RAIIIO ~Ton,,

II W \RE: o~• IMIT~'l'IO:,/S i l ;-•····--- ----·---------··----=....:;.;;. ..... =a.--------·-·-··· ........ _ ---, .. J

r - - - ___ , .. _"-·----·-·····-·-·-...... _ .... - .---------

1 ~ l

I

I • i i ~ I

I

Real Enjoy Broadcasting

\\ h) put Ufl any longer \\Ith tinny receJitir,n noi .. s. wh n h ~ r b complctcl) cut out with :i )13clurcan Toni, l'urificr7 In this static cason. too. static noise• m: > I c l'on dcn,Ny I, ~~enrd " th one of thbe easll)· tilted m,trum, 111 • FiL one rnto rour et tu-duy, 111111

wet JIU: e undi~lort,•d rccepllo11

THE MACLURCAN TONE PURIFIER

21 /-I I ;\t uU D4'alcrs I L_ ............................. ~:::~: ... ~~-·~·~'.~~.-~ .. ~ .. -~~~: .... :.~~ .. -~~:.: .... ~:~.:: ... ~:~:~~ ..................... ____ .J



WIRELESS WEEltLT

I ------··- -··"--·····------·--·

! .B.NI.S PADDUCT!i

107-9 Qu••n 'lrrtet, ltdhourn~

3 •

3 9

JERO QUICK CHANGE PLUG A tr ..,. I 1turJ, "'' pa , ..i.... tl.o f bon I fO-

B.M.S. CONNECTORS

B.M.S. SWITCH 11Mt "~ ~ • JI l"~ f r ,.u-7 1 J .... 11 h I IU kt-l•t•

I I n1AII our1 I t ~ , r 11 '• bn.iohtow tllal n ,,I J '••I aqt ~1n1., • •r,

......... J 9

OBT AIN ABLE AT ALL RAOIO D EALERS

Amalgamated~~ Wireless ,,;nJI ond ,,;ng Oulhhn,:, ~ --,;r_..- ;;.___,,___

--- £A .,,,ro7o.,a)4.!/--- l.lu•cn ,ar.-.-1, llrl•b~n~

97 Cl• rt:-m;e- Stre-t::1, ~)dnt'y

--···------------· .. -----"•• .. ----··---

i i i i ~ i I :

! I I I !

I : i i

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FrlJay, tth )Jn,ch. 1927, WIRELESS WEEJtLT ~ ....................... ----

~ [ l i

I QUALITY

i and DISTINCTION

i I

flu, RADIOLL>- ,\:-.IPLJON horn!= Loud Speaker mtroducca tht' ne:.rcst approoch to the evt:r p1e;ie11t ,deal - perfect reproduction of Radio 13roadl:ilsl.

!his """ m.,slerpi,-re bl .. nds the arl of fumiturr deaign w ith the science of ,·lerlro-a, ousti,-,..

Sensitive to a <l<!gree. loud 111 its fulle.sl medsure, w11h u n~qualled b11lhancc and clarity, 1eal music at last enters the home upon the lr,,il ul the Wireless Wave

t

I a!1Pilal~l~~ i ~m ~ Th, famous AMPLION !.-, loud Speakers are obtain.

able from all Radio Mao• j DON'T FAlL TO VISIT THE ufactums and Dtalm , AMPLION EXHlBlT, STAND lhroaghout Australasia. i j No. 23 AT THE RADLO ! i EXHIBITION. Md. f.,~.!IP;;f",,'.-J.:::. ..... > LTD. ! ! j i .............. - ......................................... - ... · .. -··- ··-·· .. --............................. ------· ..................... _ .. _ .. ,,__ '