~-RELESS EEKLY · 2019-07-18 · The wireless weekly : the hundred per cent Australian radio...

The wireless weekly : the hundred per cent Australian radio journal

Page 1nla.obj-699539187National Library of Australia

VOLUME 9

~-RELESS EEKLY

NUMBER 20



P rit!A:•, 11th :lloreh. lff27 WIRELESS W EE JtLY

.................................................................................... -................... -............... ____ .................................. __ ._ UDISCO Receivers that supply every demand

Perfoclion of tone. repro<l u<·t1on from 1111 ~lution~. loeili 11nd Int r ~lnl••· wlthoul intt.•rft·r•·nr,·, nn t he Loud Sfw:Lker J~,·onom) jn prit,·, .sturdiru --:" in mnnufaclL1re. nntl humh1unw ai,1•,·arutu:t..1•

Both thn :-,•ts hen• , hem n nrll mo,L ~imple t,, op~rate, nn,I will hring in l lu<'cnsland. \ '1rtona .md ot h<·r fntu~tat,• Stallun~ uu Pilht!1 LooJ• .. -\crud. l nrloor Ai:rial u1· ur11irt:lr> A 1tud with th 11renll l of ca ,.. .\ny Sl.tlt11,n rnn l,c, li1111n,11,•d with th, fn1diun of u tum of 1he lli.,1. The ,·olurm from e.ich Set 1·:111 lw nuule fnr irrcatl'r th:u1 is 1w,•Jet1 /oi on~· ordinary J>U)1K1.se

I lllSC'O ll.T. ( OI '\ fERl'II.\S E Sl\'.m.,,J, . 111, on , h, 1am01 < llro,m1•r Tull~· ( ·u-l u1t, \\ h1ch j.. \\odiJ .. r,•Hu\\ ut.:tl a, l•c-mg- OHL! of he mu~l St1lc1,:ti\'e :uu.J Nntis .. t nctor) d1"ulls ever produced during 1 h,• JHL1l lwo )'Cllr!I, Ill ,aid as shown, \\ ,lh ('nb11H•l :,1111 l-tuml of l'olbh£il ;\lnplc I or r5, IO -Ur" ilhuut lhu Batter)' SL1111<i .t:;o - -,-

'

Th~ l!duco tJ. I" Counlu• t•hu~, fi. V,,ll',.i Tun.,,I Ru.1111

F r11:qinnc&1 Rtc.cU l:Jflr

Comµlele with l!uam t1r Am pl ion Sp,,al«·r and the , cry l>•isi of e4ui1m1cul £82/ 10/ -

'fllf) I'll.OT 5•VALVE 'nU'llTY SET. The alw·. ,Jie,t and simplest 5-Valve S,•t on I he market to-day Splendid tone. gre:it volume, und n r ool dht110ce getter.

l'rico,, as shown . . £20,- -

/_ - -J,r~

.\111I with till AcccsMr ie.s requirud to l!'ive really good rcpro<luclion . . . . £35 · - -

United Distributors Limited WHOLESALE ONLY:

72 Clare nce Street, Sydney. 34.-3 Queen St ..

BRISBANE 27 Cheue:r St ..

ADELAIDE 26 Qu .. • St..

PERTH Ct Jeno•• Quay & Harn• St., 66 Cbarie.t SL,

WELLINGTON, N.Z- LAUNCESTON, T ... ____ ,, __________________ ..................... ------------·



WlaEI.B9S WEBJtLT l'ap One

AWAR_adio Guide 1927Edition ~ '!.efditor ;}11.~Feless Jrfek/y'fj

in the vlfar. 1th Issue llll'l ~ , ,a"es of

J d S .,-cntY ::;1x I " "One I lunJre an • c •tu\ matter

b nJ uw~t u~<= ~me 0I the c~t a I J in buok tonn

< • '0 u.11np1 e C \\<! ha, I!) l!t 1.:.: trc1ted L,p1n1l,n "

. 1 b . I 'Llll' en • d, • th:it i:, t ,e "~ " \\ A K iJ10 l ,u1 i.:

l:in 'c!.i,e ot che A~J .h And ama1"J

1''27 eJ1tllm IS'SUC ) . • ., L d '' · . ' \\ I ck~~ lA ~1:i) rl l . :, l'L)I tl<)ll OI th ...

The CL 1111L ,, " . , · \\, ,,dl wntcn • · · bouk l::, C~'-epnonn ) \ uer u,nt,llned • , \ 1, bndly, l 1" 11\,I \lJ27 • 1

~umtn.:L u o l v l ,lmk ''A ,v A 1,,,,. l l in che · · · the 1ront

· c,llll" J.~ . • l a:, 11\tCI - • Iii Ill: ! J\:,:, ff I!> UY rA l

attr:lLu,.:. r nu 1HA1 \lit,

UCTION ur ff~ . ' V • _,-. Yt:T .Stl'.:-l'.

L------------Price 1'- Postdge S0·Extra

Se!ld /or .!!OJJY <:o/JIJ lod,11J At 11/1 ladto Dealers. ,1tN.sJ1; /Jooksfa//:;

and at ct:LDWlb~ I

cl ~(Kfl.£ w Amalgamate ,~ ~ s (t.Auslrc1l11<>1d Lt tl.)

Kans &. King;, Chn ~ Queen ~t... I \11•h•ncr



f Wllll!:l.&88 WIUt-.LT

Sample Sets are offered al Genuine Clearing

Prices: 1'1111r 011/y, ,t., alt-,• fl!h (hart•) £4

Comp/< t•• £ I I

Sh ""'"· 4.,. .. ,,.,. ~,- £8 l fl (hurt•) j \L.JI -

l om11lch• ' 17 IH •

()11., -••tllltl' ,,·I (l>nr<') • £13 One I , oh'<' "'' (hor,o- • • £4

THERE are no eJi;-

tra\lagant claims rnade for Harringtons Sale ... it is a G e n u i n e Sale at which not on l y are prices reduced to t he absolute minimum consistent with business, but, to effect a rapid clearance, various lines are priced at startli~ low figurei.

bargains! Accumulators

Ii 1·11/1 :1:1 nm11 • • • £2/5/-0fhl'r lyp4!5 and capacltie~ <1rl! u/,11

<lru<ti<-a/111 reduc,d.

Boys' Wireless Books - 1 /-

.\fok<t ii an important point 10 visit Horrinyron, l<adio 811.sement •-· C•· fH'Ciallr, I, e for,, t h.,,., f;nd-oi-,ulo•

opµortunili<'• go,

Take advantage NOW of these sw~eping reductions ,\11· LllOI JC\ E:

:! Iii c olhn-.. :--h1.•cl.

IIICISI! \,1:: ~: (lUl't·n ~I reel.

All~ I. ~IIH:: JII Hunill,· "lrrl'I.

.'\H\ I' \S'I I I::

l!D

1, , roo~rn \: h.alon,nhn SI <'I

.:-, t:\\ ZL.\LA,\JJ \\dhn~lon:

,Ill-I :? \11llb Slreet.

Auel.land: l HI 11uN,n ~tree!.



I

\ OL. '•"•·:lo.

Service

T HF. 11djudi~11for it, n l~G 1,rm,J c.1~1 d •l,,ito J,..twcen nu.- ,id,• .,drn<"alinsc ruJ o a n t1Ulitv fi~

111(,un:-t rnd10 a~ .111 f't1(t"l'lain11w11l0

,J~1·J<Jt.d thHt mdlo " 1s 11 utiliw. Tlw dec,~1011, o( eounw, m.11· hu ve """" l'llJlde p11n,ly on the l!'ro1md, .,£ 1·011-

tru,·er.oial skill, ""d it 1 .. ~IJ(nitl,·1111t th.at the del.ttte l<X•k plm· • imnwdht1>h (01111-..illl( the dc\nll(llllllK ("nrn• ryclon,·, when rndlo AAH'<I mm) liH•;, !,v dln•dinir reli~r p.,,t, i""'""~ 11 a mini•. nnJ ,,.,u 101 ,.~istnn, ,. but thlll· 11111st }111v,, l,r,•n mim In th nrgum, nt thi.n lhnt.

\\ h 11 w, w, chat uro . .cknstrni,- .a C'1~·ritfull}' au t-lltt-1 tuiunwnt, \H? W-:t• the wnnl in 11' rc.:1!ri, t•·•I ~ns<'. 11, :1µ1,11i1 ,l Lo th•• tr,tusmis.•i<ins o! tlu lnrl(e -t11t1011, d••11t•111l111g nn thi" , 111-port t>( lh•• cnthu inst for I h,•ir m 1i1 -t,-n:u ,,., Tin \\Otd rndio rmL1 ltc n ore tltnn that. 1111d it i, •ttlll<' 1 l"<•nir In r,~•nnl rnll11• n• •·••entf,dl) nn enk11ainment

Rurhn i• , .. mmuni, 111 Ion, , ud 14,1 ,uch ll 19 of for morn 1af11 lo Cl\111-"Mliou tha11 ~ nn ~mu , mcnt 11r nn ,·ntert .. inm,•nl. \\'~ nv.-rlook thi~ l>i~au.,, l.,ro1td,.11stinr. rnm1n'1'. dtr<!ell., in cont:td \\ ith u ... , has ,t~Iz~I llpori our imnirinnliou~. on<.l 1•. 1hmet"r,11•. 1p1w111u,,t 111 our thoughts. ',Ye for

i;.-t th• ufilit~ ~al 11• ol 1.,d10 11, lh.th..::1111•,t. IJlll<k,•,t, nncl kn.st ••xr,cnbiH· m~an~ Of 1:on, P) 111g 111,•..,say,a...



WIRELESS WEEKLY F,.1W:w. illh \J .. u ,·h , 1927.

Gr;~ Between You And l't'le And t:Js!l. The Micr-ophone

~ '-~--·=.-~. ,,-, t----- -=-~-==-_.,....,_,._~~ ..h £ _ -~ C:malucteci by Jack Plugge

1 hrl'l'•ll'1lfl Jtt" ('t:,n

\'f'r~t1un. r·on .. rhlnabJ,.. rr<fur .. ! ,ir, w,U bP r .. ,d , tl

n,.t ,,,, I t "" ( ,ntrbr.p ,, , n Jr

Wli\1 W<ll IP !>Ult l'\P.J,;'iT h:n•c th1•lJ"t t nf u. t qx w h.1ch, ~1tta<>htotl 11 I tot r \\ 1r .. lhrn-" 11 o\·r-r Lht" 1. 11rtorn 1 1. h ~ r~duC'f'rt thr vdlt"f' , r , 11t1 rlA M l nt rroui huniirl1d• uf

11, nwny .. i-.u. h :- " ( hblfflon 0(-CUI -1ll\U,• 11\)\

A RAlllO 1i t "ctr :n l.cJr.-

b·bu htti ,nitt.('n h .!FC usk:ng tlmt t}lt' G.P (), "'JQ1 k rh1mL·~ I, hr ,11J, :urt rnuYI! ,..ft n. He , .s r•ltun, 11,at I t ,n.trt m h• I ll"igh1 nthot•d !-t"t

1hf'lt wutehf.!• nr, J c l oe-k~ t1-b.rh n,K"ht bt,rc"1• C>· m,: tl.l b:--tl, 1 .. ic

l flJ: th t ,,,,. frurr, tl,r ti I H

tt. A a mutt~r ,,r f.1rt, IJut h th~ S:v,lne} ,-to:. 011 ...

lufH~ 1n G.P ()

t>H•r~· houT, .o.nd ui'<"S inn:ilh wirk 1, tbtt- qua,t\•r

I~ ,1.-rd tilt ,1.i, rlo• r ,ua1(al • r ,rf .• n,1 l alf h ... ur t /' l ,r ' t"himP :,u1 wt-I!

------------------...-.. -------------------------World g-,;plorers .\lwnJ~ Se!Pt l Burgl's,.



J'r11l11)', 1 Hh \1-1h Ii. 1!12. ... WIRELESS WE£11tLT

PLAYS that can be

AIRED W ha t type of play cla you enjoy most over the radio '! Th'1 writer's an,;u•er to lhis question is the result of fit•e years' experlenc.- writhag and producing broadcast

plays

By SCOTT ALEXANDER

l f 111o :.lmt L 1, • ¥ :ar I er J f'ntl'Tf'd inti., rndio work u. un tu t,aL :rnd ..\ ph,dul·~r o( taU10

cumt-dh_. , and n th.tt lm t 1 tun ~tud1{'l(I th~ 1,,oaJc,1d ,lr-.uru1 fr1.1m l"'\rry ronu•rv:i.bh.· nngh• ~ nte my , S.pt'trl'r'IC"t hu bH-n "n.u'Jl•d w·h It wwkrng tn front ut tn~ m1uophonl"', 1 atn abJ,. to pt'~i. \l. tl1 utn 11utlwr1t ) 011 1lu~ • Pt~t •l L ~ U tJi!f.ti n~

Thl" ,uclitr cau, hu.nll) un.J,rnta •I what h\f y ... ar"' ptlttlliil w irk !Jd r thr mlcrophonl" 1111 n111 to on u;('lo1·; ho 1.:QJ1not L:nm~: thC!' thou ant.! tiny t;'Xpcri• mtnU und 1r,t~ -.vhirh ~u t bn u1 drr :,,.~n~ in th..- t"r1dl·M\' 1r !or 111 Cttt, n. Tn Uw -a,'.1.ur 11 ..- 11111 rophcinP s n t-o;11,·in brctht•r I th+, rn1crv~rOJH•, uml function• tor th f'atr 1n frlLJ('h tti«aomt- ~-•r •• the ffl1('t05COpt'I ( IOCtlOIIJI !or the. e)'t.:. It ,·11u nu1L•·uifv a IJ:-h int.o u. c-ydu:1t', 01 111a.lr n.u,hMt' 1w ind!C th1t.l t,th,.r"t~ .. w,,uld Tflt r r.rh th~ ur.

You. whr, Utkt'! uch f II 1 1t $ >Ur

~T•onal •PJ~arnn<"r. 11 ag 'l ,oul' ~•1! 1"Ub_M1rt,-d to th11 nJtin) or fl

hundred thou,.ard pnu111 nf e.Jra ti rOU!fh n l!llit'.o he !nt ro 0t \'u1 v.111 th{,n hav~ flllil iii• , of th 11 i •

t1on ,nf tht 1 :adi•• att11r " lw l. vo t;·•• 1t

M<t 11ridt anti bl It, ••Hhood, whrn 1111 ::be- ~tn) fault, ttnd hl"m11hcw n! h voice!. magnified A hu,uhed ttJld h)· thr m1c:rophont', ar..- heutri by .1 t un1h I thow.and ~•orle

Althou~h th~ rn1nophonf' • a. 1,it hl)" iaen11ili\', ·t1!ltum1 n .. 1t pt

t-.:.~~ rio Nnt1I: •t off~•N o }'rr:pnthy 10 tht• radii, nrt1 t: It )war i.11 hP h ,'i

to ""v• thPr1 t•a t it iri n fo\1d \·Nct1 r,ve.r ·•hf' f'thPr To •h f•r•h rTT"o r

~O;r.1 n_

Aft•t <On Id •rut.I tud3· I brought •ho ruult to a hnnl iucl', wb('n ! rl ~ d seven cfi_llfi:l't t ch .r;idt•r.s in 1h e hrat" r nl r .,· tt"iJ rtu, -..-hlch l pro-

d for Fr , 111 1 ..-.Th., Grffn

On-r•size Burge,~ for Hea,) Curren! Ora.in,,_



l>ittl'!1<1tid 'M~~tery." Uu.Jy n, tow ot my kt-1:nt t lid(;nc..r1 i\'tc.ro aw-an- ot mt a:,·hi~Vl'0\1:int, whid1 1 acc:~t.EJ :-... , • r.TCHL t.nbuto to m7 dcvelor1m"nt c,t ~--t:, 1n th, V11ta. lt WUA VCiTJ' JJ!lr,J work. I Ji.id •o diJrJ:"-.el ut,J u. cmllh3 the J)Cnona.hty .,{ r,.n1.h .:t-arad&r, a..ud tht! em of vako th.11.t ,voQld R'O w,11:. :t, ~ mi&l:1• it <li.atnv·i.he. Tht-n u,m., the lonl:' coMtr,n.-11,;n. b< ti\'IJ'Cn t.bn.-e: or murn 1:h11rnctar1, nruJ tl1c audd1..n. cb.nnJI.'" f'!"'

quiteJ (ur ,:ath. J A•l1'1n f1, ind IL WtlJ' to smld~ mo l hut t.bh I mun kN'P a JJt'l1:rd f•)r th Jir• cnt t, r:d I <·•n oMW rrmr.ae:e •1 ~uires v.1111 thr. cnlltM;t connih..-ncl' and r'&.!t.'· I am 1till >tlUI) "11, "" I ,.e1 thnt I luivo onlr Juat. cl red lht a:;.rr!a« ,i the 1ul1J~t. tlo,· ,:old aull r•m:olr.s dccptr bt:nealh lhe blL

Tho l t:l 1)fl ,,f ~•YI f r 1Ur1n;: r.-e1!'ll• cur Unit 1u-y t•!.a 11, •hlc-h rnnke lbctr DPl :l.l tu th(! (71'.

•J>rt1'>!: , 11.o tll <I .c rr•lft.'dl iir 'l rlr a \\'11 • a fa1lnn to th I te,,, r ro0 n ,,·h " left to t ia:ui!Jlat.lon, tlo nctlon la lodi~

Wlll£J.li:SS W EI':C..L":'

b.!o~rf~ t 1 U(,u ila.nl1 l

ucc1• ul ~ .. utlJ 1t c:-: lr~1t1 ( -4"d 1J.! ,~ th1 AC'l. for- th 11~1,11t.>,a\\ouM lt;,. w lie lafJ hri• 11111d ,rJltrr J.4ntt"1111 and H.:am:J~t c-h:.n"N i-" nnT.. lfu,,

~t:! -~~:~h~;.~0!n:t:1r· 1lr-nl, rff)m thC' r>'IL 1ntd ru11 nad duo.cl lfo•, i11 anccrr ni:,,mltl M4hbt.d l.hr V.llaUJtiU!t hh,sr ;11111 M"III hi,n 1-w• u•;1('nb.nl tn h(1t stri.t,l!.

f'hllen Hall,rie• R5H• Po1lrufs in :t ,•ear,

F ,J



WIRELESS WEEKLY

Radio Helped Me to Recover

L '\ f.Nt; J1,rr tt• 1.-• J, lht' hu u • hAq boa,il>·, d.,p,1 lh< v,, w trom ,h,. 1" lnduw. U1e p-ile .,,

1.,_JOlu Lr.D•I m.niruir1~•. arid u f I f'qut-, l 1•,mlP1nplatJun ur ,, tt'-c II uo, ~tl rcnm .. t-lHm..:t In a h•ud 1nJttur, J.rndl)• RU{

pU..d bJ. • ,Ymt.u tlu tt i'tl1t nnt too .1Jtt1il"'iff1' flLl'l"lll(I

llAlt 1n houT, crutltw or tht' ,I(W """' 1ha BulU 1-';11 l;oh~otrt o,ay -on.t vpn th• h11nft1n i Jnt,11 t,,-,• · r Into

rUpt1rff', but If one "~r~ 111 tt-nco,t to 4.utt at th@ uin, ,11••1tr:; h1 ur &&ft nour, da)' afW't dt1}", J'1r Wot'k nn -,,.HJ, th• f.ll!J Mtin~ lil ut I l\ hc:1 yo11 ltf' \In lh{' hf-1$tl1t Jou~ lr1g •lr,\VIJ, tht" . _. .... it dhfPrvnL0 1."ltlt'l<lll I fr-r"'h h~t I llcnnr'° .Tu"i 1n wi111 tl i , h"W fn1rn n 1 wrn•Ww it. wk in i h(-put1rw "uodeid ho.n.J .. nu. 1<tm1 quu ~ mtJ,,it o1 bine -n-~ter, ud, ont through !-yd flf') he.id .• thl" white rap.-!. 1 tit, ,, r,1LU1f. PB"t, All •,f!TY ,\ornt.-.riul Jur •hie t" llr•t <11u11lu ct da;; , "'llh lh • 1JiK ueamC1.r11 pa.!U11111 m nn1l out o hrh,k tho ru .,,,ot~ny. bnt rop1tllv Ina 1·g ,,• Jntwrf"!\. a ,·ari1 u!I f ~tur b-tcotn rn.or• L.unlU.ar, :111d, b..n1n:; heeomt /10:rmnr, b1~0ffll: montitonoll.!.

Jt h Mo at.k, with l lie bouk :111 1 ru:.t.~:21tin.e,. lw:Ldinl!f l1J b" r-rnll1 •t1

;oyod, •bunld Im 111111J,. lcb,,J In b twctn one'.s c.thcr octlvitir , bt1!. hk"' l!il!!') lhinu d._r.to. u P-Uritil ot h r ·~ 1U,1tl'~ l'Xltt·rnl.! hcrrt.--duru, anti urn Jm I ufW..!Nll ~u"' nhi.g l'Vf'~ ov r Ze1 e, Ot ~ • J'b,l,p CJlbb~, P. O. II ren, G d lhn ,, u~tir-r "bmit :.i ,thoN" wh rtn I • ~ uniV'llri't,Hy •tt.'lalllll'.(l

1.nilt't-i.in ti n. t'U?Ac:l, bu t'-.t•rf' nrt-Y• r:ou £orr1.1 o( 1t1 t10m~ I t!, in 11r0rt hea.rlible tJ:!l..n otht•r A r-n .. by :any to~brr b.otU mD\: Ii Ju.!l n.. ·•eei. 1,ut ur • h<JfJ,JtAI lo ju I lllee fttl

.11,,.,-.....,.,•r,t th;, '"" ~ h v .,,lrt>IP< QO.J 10m, hth't n'~.

About tho dmr- t ,,ornm,•art-11 tak Djt

flu; IDTO(I. r.mbllc l1oapltal* lll'I' 1101 the 0,111) /fuflluf/on, &11,1.tlffnp b11 rndto. Thi. 1.-. 1h11 ltulde 1tor11 of the pan-radio l:1 playi,u1

/11 m,11111 ,:mall ho1pftlllt 1/1 rough,mt ,11/Sirl'lrfO a, told by ti r,t1th'nl.

1ul,t mi1 I ,uullJ ,_ ldl h erit'Cllil!'1J , 1 y, of · /'!•• ntJr r , trin1 1• rtllll} '"' "V' rat.ion,. 'fbi wu \'l'r} ,nt~ft-t\ IIIJ; lu r;u,. bt-t·,MUll l "·cnt rn ilic.•rl' m)J1r1f The, clim11l"tli of h" (Ju~Urwt•fe b"~ ftt.-ttin,e-, h,,wr.""1°, bt,,;:u,1 ~ wht-1 111• thi11,: till) lllLnll"tU~ oc

IH'TUf , 11 ,loot "-1il1 ttm\.--CWU Jo1•J1l 11111

11 -wri,, I Jw i,1chH l' thnl ~ol on 1n1 fif•n-r tl" t. ~\Jl,c,o1,mr.>uu '/, l fli1Wld m~-u~I r finrtn,I' n111. "bat ,,..ouJU ha,, pen 1r thnt -teiJo\-r rflmplvted bit l 11p-1 hc,, I t'-kon~d UI> th,. d1 lllhca t.ti VU!l r, orn ,, e Ero ruJ-1.h total dlJ!• un I u( lb I a ' "'n lhua thme• • pt m.v nu11I bmi: un1.f un ontc.•hH.l1t11

I I ,, romlll• , 1-,1 , v .., tor I 1,1l or th [lll!ltw,, l•,-.:f't'\ llfflt r Jonkr-1 (lU1

hat ~Jonr l ., 1t LA .. 1ai: :at "'"• hnrU 11".!Q •II\ ll rt ,, ( ) S't..J ,o,. th OJ

~·:!';!~r ;·~tt~, r;;~, th~,. Lf;f!P1,'~ : ilh nd pn o, \ t I • of r,u,ra,-

h '" J' t tur~ \\ a. '"•· i.: of 11 t 1.1r, • b.'ll1l\• v., rlh n t:. ,-~ A' d • I, uut tt.-• file.'!: 111 ud J~ t~t: ul Wkl cnr1Unu•ti ,lwl!Jlm" ui,rm on,. ,,nrt,rolar 110t,J«t ,, "flt ,,. C"1ut , wh.ai 11 "lr"lt"rl mau J:t111lt1 call 'ti Mrl111n •• ·J urnan,t lo thtii 1'ini.1ow ,,,,. c:umf.,rt, J f.; rPtJ 1he ,h·w M1tr11nr ,nJt. to my r) e!!. lurw 111·1·u. • ·unt: l to t"..b· at.cttn hnitt11 nl ,1 lull bull J n oj1pu.J1 •n) pl~1r, l r IJtuln',,• , lh• e1:,y,

ru Ila •W"fac,, or tti.. blu , wn10, , tof' 11amf" tc-"1' nn,1 thr ttci r111,rr.d huu,w, on ihf" iw:.JlunJ 1rt11du:a.U i,... .1m" ,udJ i.crul u, ntrr~t 1.11,e---to Al"O

t:•111 d 1ie

J'be Lltc or ll PhJlco J.lcglns when Hm11ht.



" t; d:,i I n ,1 ,ril hf• t i i u, un l d ., tu: 1 k:,

un,r wi.d 0 11 flH 1.urne•t rut fut t[.i,ntfvrt J \\Ml·

.JJ1r.ouru:l!r- and arh t

WIRELESS WE.Elf.LY

four or more \'al~P !'lets delllllnd PhJleos.



Frnby 11th :lludt. 19:JT. WIRELESS WEEG:LY Pa£"• N fie

How to use Reaction in Radio Receivers THE u ,,. n·•11CL QJl •r n,r 11 •rn

iu:m Ill 11. raJ10 reC'C'J'\·t:r re,~ul. I.! 111 ataod deal o( knm, ledi:e- m

wl'dtt th.at lt ma} not bt- c,\·cr wW JI lmproptrJy nppli~ re-ac-tlon \\ ,U ca.Uk distortion or tht< sigruil • t 11 raua.e Ult; fc.,;..pl\c:r-. In 1.:.-r1am 1:1r tar~~~. to 1ndi.lltP '11 d ~Dll ..... 44nr1)

mtt'rlHenc•• to otht'r recttht.•r Ir th localit), Both u! •h , troublt>11 houJ.J bt• c•reiuU; AV<Jhh.'-d b)· all

J1 h•nt-n 1n th~lr cvmmon i1 tr-a t.

Tht" fir:-t uoul,lt.•, di tort 1111 Pl't'!• \'ents the li.,teht"r obt.liinlnl( th her1• flt 1,f tht- proJ(nmtoi::-, and untloet 11H tl o .~c.,r-k ot thl' IJroad .1-.tinAC .wt.aft' "h, u~• e\'t•I'}~ 1 mJ~M\'uur tu nuala ti tran!lmiulon <;{ the tlr,;t ord r

Rt-a.ttion <"urrretly aprt td • '1t! uu~d "i\ hh a ctrruun unwunt of k:n iw• IPodl"', i, u ,Hn1nct .n1J ,n tht pkkinl,f u.p o.f dlatant statloh~~ On i•t thr ulJ:ett cpplicauona of rttacmur l9 that t-mbodJed in !ht'" thne coil, wr two ii ft'rd L:u. J.. circuit. ln 1he1'C c1rcu1u Uat> pla.l,. ~n"rtrr of the, d,.tttt t· vah" !l r~J ha1.•k throulith o ~h:kJt>r,. cc.iii

to U1tt Md~ up or ani ll eutl or h1 tht au uf thft thN-e coil tncult the teed

ba.('lc UJ mtldi.: tu t.h~ tf?f'\lnda'}" ur gr,,J C'(HI,

lrunedlaMy the plat., cl•eu1t I toupled tu th-, E'rhl l"trc·u1t th" vn.h~ wtll ber-in to g-'nPrat., O!lt"tllatl ,mi. n.r 11 a;t \h.,. whole- clrtUit b ro 1plffi t • lht »rial tlN'tllt thu n.-ce1v~r It nd • out a ·•camer WClVf" llnd U('t"l D ti lftla..ll tr-AJanutter, The.re b no real way to ,,vrrromt1 rodWion<"oUst.id in thi1 '\\hY, bul If 1he ••rial coil it as 1.,.,,..1) ~upltod a., po.&..!-tblP to th'" ,Crld toil tht•trect will be mmuniaed.

Jr the tickler co,! ,. coupl..d too cloaelf I<> the 1rrid cot! <ho &tren&tb ot ~1llat:ioa .. ,-.·ilJ ht- ,err-)' muc.h 1r.• crea~. a11iJ Sn aJJ1ho11 tht: 1icnal!1 w\11 t>,• hadly d1dortt-1I, dup to the vtoltnt oscillation witMn the c::1rc:u..1L

i'or J?"ood recertfon tho tickhr coil thould not bo used if lh• oi1tn•I• ran be urned rn witll~ut iU •id-rrproduc• tion wlll thf'I'\ he faithful. To lune ia J..,ni' dl'-t.ante 1ta.t on• the: tidtfn coi1 thou.Id ht,: N>up1t>d and tbc- cu.rn1>r ot the dwn>J lltlltlon tuned ,n, and then ~• titklff coil 1)0-.. ly Ut>COupled unbl the spetth or maaic ,. clearly beud. In a. circult or tha d•..,,,pLion It will bl, found th• < ahould th• mP-l or the ~ction cull b• <ours• of adjurtment, thd tint> ront.rot of the d•t.t<tor dllUIM'nt will irreatl)" ...in ht rodU<• ln,r the OKillation ro • point which will clear up reuptlon.

Reattiun t.o any Gf th~ toih whitft are coupl-d to the a .. lal u • prartf...,

Extracts from a talk d'11iver ed at 3LO

By H.K. LOVE 1-'~ ,ldc.nt \ kl<-ria n Sc~Uun

\ Vln?I...-•• lnuUut".)

/-AJ u.r,"..- BrOlulb,,d, ba.a,11 teft',tnf..,., n "'"'"' tFC a rh'u ,, ho ha, b.-,n ,.,.. th11a1t f llJI .,cl I I , r "

There are no rival• to the Phllc:a.



I' Trn WIRELESS WEEltLY

T he Safet y Valve \ J, 11ut htH'fll in -,,h,c/1 n:odt•1 ~ t-t r e i,u Ht.·'1 t,,

u lu:&.,· lh~·•r IVdniq,- by c..·unnru--ndu.t1un u, emutemnatlon of broudcasl/119 , ta lion, and their pr'ourarnmes. ,ti/ ,..,,.,r, m ubl lw uddre,i,wd tu "'I h" -">ul..iy t uh-e, " \\ ,,.,lc'~s

U ,·,•kll/. 'i I <.'<1~/lrr.-ug/1 St., Sydrt1·1J.

ur "' IHIII,\ I \\ IS

C l ~ IH I.I UH i,11111 U

\ I ~ 1 t

O.l!Ft 1011:-: , lb

1111 Ill, M,1r,h 1•, 1 •

l'ltOK t nt "inn KE.t t..l" 110"<

1':uu Ku

I ht- I• .t t ,r \ ~ r.a a l n a!:h rror11

1 ,r,~r., ;f WO uf' ~f AJ

ffr>MJI.., I



Frulo), 11th lfarth, 1921. WIRELESS WEl!ltLY

IT'S ALL IN THE AIR Coming Features in the Broudca11ting ProgramB

lll~IIOP llf LO~l•IIN "Ill , ht>ar1J In th,:. uu· ,rom :;re In .Sunt.J 1• m,c,.n1lu~. Man b 20 from .f;t ,t• rk"1. c·h uch or 1:neol.dnd~ llutl II f" 1'111nt, uid '1Jtaln i I th t\ l"Om • from ,'it \11 ht\\· i"'efh rat

CUl!STR, \Sil <'IT) <IHurh l''->E"MJ nHkt- wlll he cla I to I nr that 11 o M11lhourn hn.J 11 ,h arr,,ngenn hl.: for th(I HI h,,,. of LonJon t 1 ~ hroadra t ur1 :-,;.unda) nft<'rtl<K•n. llirth :!7 l uuntr.) d1, J;f •r,• tn ,-t.afhn~ fouJ pe:u.ke-r11 in <'IHJ"'h,, tor th,- u(t'H lo,

\lJL \I I 1,A \ w II h•JI ll 2i~• • ierTe:t ,,r talJ. i, frt.itn S!PC unJrr lhu tiUt1 of I rnhtorlah Ir ti, fh df'ltr)' Sl.al(r>, lh I• u mah \\h koc•\, lcup pf th• :-yduo,- Stag, t• J111mC'rutt\ whO!M' JM"nonnl t<:latH,nl, 'P with lhf ptinr.1pal d10ra ,.U Y. hJ111 ht will deecri~ \\'U an inim•"tle c 1, "'"d hl11 n,-.1, hll<. a !01V•1 t, r :--atunfa). \1iurh 12 d Al Y.\t.b t,Uth nnrm AA l ' \\alliAmJIOh 1,101~• J.:,gnot.l nnd .\lfr•<t l••mpl

"II .A [ RJrAI l'll()GR\ll\lr.!< <\b, ut ll\r1 t) th,a1r•1.•.1tl 1ut1 • rr at Ju ent t•nJ.•h~t 1,.111 lh!! progriunn11.lfl 1 r :u.u 'fl, 1,r,,i,,·,1nwin fur ~:.tur tiny nio1 nlni:, lh1rrl1 12, includt1 U horne arlcl l'f>t1 ,c-r. c;~o. \\ tkh fl'vtmidlar. lrnru f1\"oh). .Stilueo\ Hurdu.dJ. ltarJor1•:. \'1'11" <ftl111 'Pin• 111ncJ ~ffiJlr·e/·t, lluJ.hun,•1 8tr, n,ul~r•, .\lne1titr ~•o~te.J' arhl \11•• J,-utp llat.th..,lur

!' \ \ \ I, Lr'ltlA Jtl STJC.\N A 'urel)' th re 111Ht lte a hrmL 1>u111f'• \I 11 ft' t , tlo t.Xt 11..,,c-, lJ( thP mu,ical l11tu- l'l'lf\ld101l by ILn. 1111d w• :f11l'I tht• linHt "•• r(".;ftc-htod whtn, uu<ltr U1e ~ 1pnblt Wllo11 of !.h. \\ 1ll1110 .lumr • thr UJ,tira. ht '11.,•nll, iia. Hu ti C!in.&1,

1• \-, n- r, 1'1th l,road t,l. Thf"

IWJ t11nn t I" w lt ,iu~ta1hf'd 111 ith t f'rr t 1 11,ltriwuidi, c hi tl 1111pDJI ~ b) \I~ S.affo Art1JV. \\l 11 via in rn R"ni liet:, t 1011: • ~11,t \l.1iu hw1I th"' 1i•1i1t •u n• nr a finch t1·•w,t1 c- oh of t':O , h•l":! 1 he "'h )I 111.durn1.anti, was 1 tnl,Ut•• to lbu u1&1tt-rh rn1,r.uditft hiJ• ,r Mr, W Jllani Jun,c h ,,J w~ I"' k r l\\tlrd lo aJmlhN of th ft "1 IJ t1nn " with th kt<-n~t lntr,r 1

TIW nr.sO\\ S'R TOI I( ln ,1, w of thto t- u-1) atrl\141, f 11 M, H1•no"'"• \lllth lt I( •~nl f!AII)' oh lonnl.,tT uteir fn,vrHt I g-1,, n to tht' rt, 11fr1ption1 11 th1 rn,ut~ or ti l' l'PS!d thnt havr. ho,n 1:-frcn fro1n !lll, bi M,. J lJulmt • tln )t 1tlh 1:,. n ,..ttk hf-lnte t..h urn ii, Mr Ttr,lm," 1' 111 d1 J1, ,, a

111 lal eddr .. 1111 nn "Th~ Tuut ,f the Htll0\1'11' Jt, ~1plfianct1 \\llh llnll•h Tuuff'

Tilt: RO\ \I, \'l~IT '-• t 11~ I twln5r leh uuturn ... t J,)· ll-, tn ,Ct."u1• n "1Jt ltorf Jllf 1-<'1•M enblt ,. p1·up:nmme during th• RrJ)·• I ,i,u. 11\l la1Kllnir ot March ..!tJ \\ II ht c1ln pl,.tl'l:r eo,·tt~t. On~ 6f th~ Inv t ru terpr111nsr nuh,1 tra •m1aeluu.t )'t:'l .ttttim'-'ti!'tl ".1 on tht" oe~,\ h111 f ih 1n1n1il of th1- ;\nu r1c.ar1 ll.nt, \\)1rn ;.!Fl .. tJ)f't·I \lb rh,ot •tt-d lht' '".Sit tiud Ir) fit ('hah," Mt1d 1irn1t1,:- m1Ullh th• f·h·•d.1 tw n\'t' tnlle11, btc.dr,1 t A Inn,

r.lct d ,ctlf L1on nt t'he ,•nti-r-(• c,,. n a ptacticu.Uy Wtht't)kt'n tt•n"'ml1

•1011, w11ich kc.-pl ot1 for l"'o hour l-'\•ton mn1·~ rl1h1itatc 1~tt"Jutr,1thtn• rto bfth,,c m:iilf' r\,1 I ht- Uuli.:f!'-' \"it1t, n.n•t r11 ( t ll., ha'"'J er·ln,r nt aur ln,J,orl ~ m bo uv, rl,.olcPo l•Hnllt ttr, n.hmtU rnmpl"'"• and ut1r nl"xt l••11r "'·Ill ~I\"~ turt hrr informal1Q11.

C.anada ch0&e Burgl'll8 for her outpost&.

.11 .. , J, .. ,. l1au/u ....



WIRELESS WEEKL~

!<l'F:i:rn R\· r.CVERNOR GEN F RAL TO BJ•; lll!OADC'AST• Th• GM--€'rt:mr lif"nrra1, f.ord Stont"hlVt>n, 1 to un,:rll • W.fr ,1r:mom1t :it Hun, tPr',- Ulll on \1arrh ~11. and arrang<-mf'nt -1 t n,·" littn modr to br<mdl"L"t hi, pttch by ~BL.

"'AJ.TER THOR~L\;\, rrrnf•~"'h.mal mu:1i-:1.11n ut tht> XS.\\. Con.H~n"fitor-1urn c.f MW1u:. b n V.t"ry cbt•t•rfol Jwtetuwlit}, tHuJ ll«lt-ne-ra wtll be able to hear hitn rn ~uni~ of hit DP•-•rtl""nN-• u( hi• N-timt worJd tour. Jt ~-,tl be nrnemlwr...-1 h w h,• w•nt with .&lr. •·y,-U ~lon.L and \tr. T. Looban ut thto f -vn"-c•nut, rhun on a trip to En5.?land 1'hf lllbt•r nn-. tnt"mbrrt of the party rxn:tt home first. and Jdt him t('I tarT) out a j,,unl thn,uxh the- Conhnent, Rt"Atiu• will r-cm<-mber arcounhf ap,. rlf't11 l~1,: n tlw fUnln~· ,rap,..-r• of a. well•k.no\','"11 ,\ onrAlun who vaa d~ ll!wratl!'ll 11t l'rril of u lorg<" sum of mon<';>', In (fPnu-.ny. !?Ff' tri~d to J)rffV,ail on lfr. fhOnn.A'l to ltlvt t-omi: d~t&Ut of 11111 uudacil, .... C'OUP, but IL APJ)t'ar11. hr PT«:"ff'r1' 1t to l'l"ma.in a J.ark rn}·5ter, HI! it happy, ho°"eve.r, to 1nlk t, UJ,.1r:nt' ,. a1",ut th~ brighter side f'f h.l!l tour. on SundA}· a!.tffno1Jn. \.tnrC"h JS, wh"'' h .. w-.nl C".hat tn hi.a enl<"rtauun~ W.tlY oh.Jut hi! t: XJWri• ~h~d IQ !' fll(ilpott u.nJ t..h, £an.

J,irk Ltwtlfd~)HI(. 1 •1'q r """111 ··r11fli,,11'• w.J~ uf d llt IW•f 1,,,1,1ila, i,i. !I r .. rl'ul

~I'( rfffflp<I ; ,n1..



WIRELESS WEEKLY-

News and Notes from 3LO, Melbourne S 0'.IIETHl'l;t, .r • ,.,,or,l .... p l

up h) o,.,. Potit•I )ll'rhamrs l"nlnn and thfltJ' t:orr(ry H HI

.ltailways and El«tT1Cl8.n.a, U:iir,n on ~alurd•>·, J.'ebruary !!.f', '\,\Mn th ) Pquippe-d 130 bt-d!'I" at St. \·irc•pnt's lfo,~lt•I "Ith "!rel••

'fhlA wa, the fint il:'UitalmNa t tht bi~ joh of patllnl? h('&dpPl••n.u on 1 ;oo food~ in busp1ul, 1hat don ,t Jft rn oy thi, bfont-ftt. :)J ... O \Ui.1 • c.90C:Ut.tt'd \\H,1.

'Thi!' Hu•ld .. in rm1kln1t :tn t.f1T al t r tu.ndlf to du th1~ ~ urk, tnd J::1000 ~ .111

~oUl'Ctt.--d. T1u- m,~11 &Tf" doing th, v.:Jr ,hg in th~ r )\\ n hn1 .. on ~oturda) and holiday,.

About U n'dc>clr. on S'aturduJ h • ta k "a-1 ju!"t abnut romrlet,~ and th~ ptih••nt.» r -.tt'r, d to 31 n·.a .. veomg , 10-

iifrnrnm.,. "ith lfltt>nse hu~1p n H. J • to t-f' their tmllf'i 1'D5 u.ou~h to bnn,,r tht" rfahutfor thnt tutl. an ndd:1t1on to h 111"1 1rtallnfnt mu.at n:ivti a cura.tivc valu•.

From nf>v. on. e:ach Si11 urda)• wall ... ,.~ ii frf',-h b:tLcb o! llr#ill o:l• w1•h •mllina f.t.c-e.11, anti tar~ •s::og for th,. 11me :signal fr rn t-h Muri , "h1 h l to u11her tn thne houn u( (lnltr-tair. m•nt..

THF. (H'F:STION llllc:R A c-orre,po1uil"nt ha1t ·~ r1tten to 8LO

from thr countr>·, makin: thti U~lt tlnn \hat halt tlfl ho tr II Wt k tho 111 bf set ai-;fd\! f..ar 1tn ,u,r r ~ ut• 11 n • Thi.. h• A moct ex~lltnt 1d :.:i, f onl)' •o.m• ,ort nf n-,trtdlon roa.ld b t>l•.t!~ on thP. mqu 111hvew n of li,uncn. i·h~ qu, llo , I !oar, ,.,111 ra.n1te thrnu,:h .!port t, d~ tr d no unP Jh.'r''(1r, ro 1111 t,,- •T t-rlt-d io ••,nu~ up'" th.- an1;w.-n to • hou~ar:d (I IP&-;1ont .:l w~. I t a1ort"- the difficult• \Jf c:-ompr~Hln-i,.; th..- ft::! 1't•rs no th• Hmt> a.lloWJlnctll.

1 ttrtAin1:r think lli4l qu ton! rr. tuinr to i:.1. .ingl, ... tubJ~t ni chl be &Ii "\'l>t-rt>J 'by b I t-1pttL ( untr peo"lc- rf•N utll)! ~c,ulil Lt, ut le o I, r1vt- a iriut amount of lnrorm t1u11 I.! plt'ilur.- frc.1•11 ttw rfplil"f

I h• J,fbrult.) 1 t} at )UU <-ann t f t i:a.n} murti, hqmJ into • hlle1f bottlt', u.nd the nJZ"Ular (c: 1hlrt 1 :.at LO~ o man) und ,.ar ~ that 1~ i. hard l:) I n 1 t1rnr for m, rt>. "ithout 1frl)pp111~ 1 1hat lit"' kt"t!'nh: .w.r,lt 11mt~t .. ad Wrt J.,.

Thto 1mm ... 1 ,rr~-.Hw,11,h•M mn}.;,. ~ n• othf'r IIUIO(fftton that ran I a ly L Jor.f!, un,,., inJ:,~. th.at hn a.h,nd;· bf.en tbr..e, 'fhat. , that (i ml H) phout" ehvulJ hf'l J,l~ ttl t._-k~ a Wt-('lr.:

~t II btJ ; 1ut<::r ecl10 Hl \T"lbourr,. ,o thtlt th· n .. &1~· 11od ,aru.:d ouud.5 or a arrt•l c:ll) 1n tht" mov.- niav he brou,.ka t to fcn,•h 1ho,."'ltu1 \\11iat e~mfori th£o-y ~·1.ulJ d r(ve- from th1 aun~u.lar d1:1oon 1111l&ur th,1 lh 1..·1t) la s.tiJI car--rying M I oa.nnol 1uu1 l'o hu~ h. it. U,1 1 aJ win I .:tl,

nl J or , tu r • 1 for •ub.,t.>ct huv to th,, train of actual nt)" rraffi(' Othrr,•,t•e it ti a pl, a;mr htn-d to b~ understood.

\I\ l'l<Ol,R \\1\11-'

)IA.Jot C ndor. tho m"nAit'JniC J1rf<C. tor or 3L(), t OM of tJ ()IH I u.t1len1 fc-J ... IU'\\I bne c fl nt vtr IC l 111 ta,.1 nf. Th~ r I tJtT ,h&) I tnf'l him hy chann1, and Jmmut.l a:•~1:r wn1·laid hlrn An un,. L UDI th rr ha occ11rr to ml' l t d 1n 1d n.

•J n t

f roi:-ramrnu a1 c, a. .lt•t:h1t.1• ~~~nil :.1 hor,-,.p tJf utia,..



WIBBLl!SS Wl!E~LY h1 y, II h '\latth, ~~7

Melbourne Radio Exhibition Reviewed Our Melbourne correspondent discusses the trend of radio devt'fopment cu revealed in the Mdboume Exhibition •

.. ..., . ...... ,., ... ,, . .,,,

l i,.. wUI l t ntt~ t v.:il h • cu.n.trnl ••gnll,.-ct" In ur Cl Lum• 1u thu ,a I 1U t i.too I, n 1n« "ulumi:.

Tho World'• FlyCN canled Dll?'g-CU.



WIRELESS W.EEK.LY

Defects that Prove Progress

• U.. IS

Ar,otl,e, ,lw11 011,d., b11 ti,~ Chi~/ Enein,et ol tlie Bn11sh Broadca1tin11 Corporation T/11, t,me he d;,al, u•llh the ,mall

l'APtrtmellls rn the tronsm1•<oon uf proi:ramm•,

By CAPT. P. P. ECKERSLEY t Q tc I• Jloll I"

"' It

Jl,~,, H• 1 11 J • , rl1 d , 11 ,r,, ry nnfi ••l"tet)' tor ,11tl'lu•• Jn tbP old J'btf

•

f" 1111 't.121· 1\IS~Ht • Pr,,h. I f 1u 11101 puu LiuJ c>tarnpl~ ft( thr alu~ of 111·0 ,le" tu~ hn ~n 4:hl'r,

• m 1b" n• µona'-" tu Ila: Ci.t111po;ut1 n " ttiirll,i:t.•\J 11} lh t\ u11um ~01.·tJon vi R1 ua,1,·.u t r tibn1 1·J II cQnn,-ct,on w·i1 tho 1~.1d.1> l:J..hlLtti u ut t!,r l'v""n JJ,all tnttu s cum~ fruoi ""cornl! of Ll 1 f:t.. tc-. nml du.•ir \. llfwl y l111 Jl•1m,n trut1:d h) 1.Jw t-::<bJ.'bhiur'1 I J,, full,,wl,~ 1•il• • !01 , ~,~,

w r,I, 11 --!'r, ,,n 1• , )h l..itU,P' 1 t•r ,tmUi. 1. ,.,. u. h;.tYd ,, ~ ntttt (l1J'H11,.'w1t"k): •tong, 1111dwn:h, ..\1.J • !\, ArJ.11m• ("t. U:u1·•,.,~ ,;co11. M,.., PundJ (Uutl )'), 1, )tu. c~~ldw11i' IH\lrv,ood I 1 •• ukt, Mt • t:ob,, ri.,()n (B11rwo,1,J1, ,, .... t, Mn Kr1t1r tL1:h·hharU1i; "'"•K"' Jnpt-r hat, !\f1 11: I lJ'A,·q• «'l•tn11,:1llt-)1 I? ,tm. Po•. 1111 \0:acfry) !!: \111!1 1•0 tHI fOa.tlo;J :s; c,rJ-fk' 1 Atwr l1tt.1,:~ \t Ml \-L Cl.t•\~LanJ , HQ n;u1 l: ,11lT'in, .!\fr•• (J11s F:.e:Jph f.M1r11),'"I; lamr; hJI..Lit. ~t, )!1'1101,WiJ ( J',•trt,,.)111h1): llllf14 ,- )11\11 ~!"!_ M.r.\, \~ t' rn, ( ("lf)\'rJlvl

•· 11u1r lhl' Cusl heruu~r l lnuhle the Life" : Uurires•.



WIRELESS WEEKLY f'ridoy tJ th M8J',·h, I

H1i r.uul. •~ th w-n, I, ,md't'(t f /rt,,-p tht "l/rJ11ma,-J,,rt'' l,Q. ti htu ,.,,_,. rd at u J.J i 0011 c:-un'rort ti; t ~

On Everybody's Wavelength A \ I.SlTOR rr,m ~- (.uu rn raU 1

at :,?Ht. a f~w l :.-,1, :o rhot t>\",r

hU e:?.pt:l'h."nc~ !J" lMt irk~J t 11 the,\ nIOJra n,r.drnu of S11,•,t (,u1n1"1J lmt«lr J to 2:Rf, !'-1dnt), ,U,lG Bn.l ~, 111 d :n .. r> M,·lbournr. Ut°'N£n ":' .;ml pm.. ho•~vr.r, thr Au.s:r.1. Iran atat.tvns f ,J~ 1,1,...,ay and JO.\K ( J4pz,.nJ rom ln !1:hongh• Alictut V 3'1 J<JA K b.i,uu to !ado nr.,1 ~l 10 o dock hr l's hllnlly au~1blo About thi!'I time, ho"rV r, the .\urlr:allan

t:d ton1 AJ:n1n c.om.o in D.nd contin\lt:l" Alrun11, uuHI n, •rogr~ are rouclu,,h-d .P.t mWn11"J)t

L,ft, 16 .\Ir. A. JI. T.,,,,,.,,.,.ti,,g tM 1,r.-6tnJln11 tlcr P1fot Rlrctrir. ,tnm,i .. /arl"nrt') nJ. Im:., flr,.mkl1111, """' f'OJ"l:.. .l! ,.~rc,d,1t1u I• £:iport 1T011n94"r ui tht• biu <.'Offlp«1lJI, a•d

,.,.. ()Jt o t(.'IU.l" p.f A«•tralui, Stu.• Zra.l.aJtd ., n d Japar,, rt1M1,li.cwt,np I••fr' int,rr1t11. /1,1 t1'r 'l"tpht ~ .llr. ,•. U" $uw_)tff, S, ~ior $alr4 Rr~1,,ctatit., oJ l"tittrd DWri'buto,, Ltd

For Pure'll \1usic t.se Only Phllco.

ff \fPl .\1 :--T ru:,•r.:1\'F:Jl frum r .lldt•f'I rl'~:1rdrna- lllt~nn,.mn:i t ~ l1ru,111kut n 11~n1 n 1· a pr nl~1 1n .. \'.in-le \\fflc:h" f,r'\\llrd<-tl to .,?ftC rtt, ,n J 1he lul1owfo~ oru.wcr·

In 1om~ cou.ntr1 or th-. w tl.J tli1.1 l1rcA1i, a L nr i·or11p.11ru\' adhert- r H 1tfoU I• to tht! Lr1 dCtl L IIZ Jm.1 •

aramm ,ir:iw-n u, pr-rb.ap• o.. mun•~ ht!ort., ut i, \J r hn th I c 11 tu m4..k, the f'T01iiP''1fflflll't a• u1wto-dntt1- 11.,c i>u H h t. tt>ir n1rlu ur 1u~ for \\h,,h arra~n11·nt m.!l; Ju:iv• In-en nindo nt th I rt rnlrLDh: :?.F(' hm1 b)· lh1111 :rnran bttn erul,Je,.f tc, indud, In r«:ent pr~r-:1mm"11 a num bE-r r,f un.1,mrtrtnt It, nt The Prim~ Mirnstcr'1 ptteh f1om th1• Wt"ntwmth Oott-l and ,tt . ..;~,J Srn1rh, lb.IL:• on tht, Au•traliun Cr1d:t't t nm \\11'r J,t1t In t.h" ,,roa:ram-mt.: :1l 1h la ' m nut4!' The Uig F°"r ( r m thf' IT a; m ltl:Pt Theoue "''~ uJJo a hL!ll na?lot r ~ gag1'1n>t nL OtJ r tFn lnrJudOO u lhfprosr,ammo nt :ohnn. ut1C"e "1t hln th Ju,. month Wt•n:-R..11.·mg: from the! ~~Rl f!O}'l\1. F.m Tninum'., Gilbert :rod ~ull \':m fl,;. 11.aJ. Art .ur S1innt .. pr,ncipal C' 111P<li:m uf t t' Bullo llt"nfo r"o., \l!l'l'd flSh,,~.A1•c.. tr-Alia'~ fon•m t tenor-. b. n.. D fl, 1d, C-Ob'lpo!l'T llf 1.hr new ~l,1l, 11.1lT1,1.Jln B~a..l1J," C1v c: R.rce-nt1on and J .. u:ncht:on. W tht• n/ hn1-~ t.1r t~omlo,

"P.ROAOrASTIXr; ,n rr-,"ir1K the Mtionru ltlU"l\.t"a.l UL!t(•, · D:t" 1r;. iadn1irt-t. "·I hraa.rd a milkman wh ,-,. Im~ &t"h rr.< nUy •

\ wn t1f un-t.At.1, peorl-r:.r

fIT.ADLTNF. fn fl ill:; r~1~r 1·\\-Jttt• tl u Worh,. • A t'1rre1pon Jent wrtote thL• uthtr Ull; 1u ll!f. ",;h n



'.VIBELESS WEE~LT

An Australian Views New York Radio Progress

The ,., •t dispatch from our rcccnlly appai11tcd Now York cnrres• pondenl, who will /r,,wmd n,gu/ar

reports of th~ lateit radio "r~dopmenls ,n Ame,ko.

:some uf the, !ituU.-UC$ m~ouonNf \\l'tr at in1err11t. It WM hov..n thnt th outpu o rnu!L \ .aln m t!t".:1; wu nvcr t 000 rw-r , • • l f:"'n-atcr lhan thut o( 19:!3, l11..n, ·h11t t.l,t .1t1:Jrot1on nUu Is roll uni)' .' l fl ~ .-, nL P'nr lbe. aame }~ra. t) · .,.... , in thf' uultHll t,r ualna WU!t HU y,\"r cen._ and for loud 111t.ukrtl' !·tJfi pt.tr· crnt Mr Kt'r t, ot t1 r Al¥-a•1-r K11rit Cr.m ..

Square Gla_-..s (;cl!;. "Ith each Pbilca.

•

..



..

Wl&ELESS WEElltLT l ridar. 1lt.ri ~l~ch, lv:H

4QG Brisbane Calling, Tune In Here

TIil! ,. •yr1rt.1 t! n 1h, 1 ~ r•"""1 • •Q<:

1r N2u!lhc:bcd "'--:IOU. At -tQG IJl, f ~ Qltnl,ut.(h1 L •1• 1. ! tv. t,

. .,. i..c-

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I I ;; ,( u '· I I TIii. Ill Iii 1 \ • IJ/ I Hf"

~ 1rt.,. IJ Jl e, l or.I.,

lid. f1dl ~, IUtt-,.

I,~-- ,f~u I o.,,,, ll"t t7td"

',,:,

I, 1d u( II

C Jn!f:'r

' J:r "'P cl il"tl .. I th

liu1••011 , aln trlC'ludtnl' an anKlc "'" "tad• ng 11nd •..nnthn arik:, drall 11: wuh he m•·tl\Nl e1f n11itrln«. au.d JnlU\)

•r , ! wC"ll•""' t irn m11t'"r.r ot irNII iuthu,

Th rspu1 JIUI ct,:, c-ont.;111• ti.it or AwtraJion .\ 1At• ur T:.nn

n1c•"m,::. t •t..Nui, nd t,tbf't eatl tirrt•, ....,,,n1 I .. bk h alwar luondy Th 4U1 hor )Jr r ,, • Sl1J.Jr •

kl!llbWo b tntb :. and l,O be t"n 1rn. u.at£-cf up: n :urh nn f:),lflllt1r,t ,,rodudum Th,· book ulla. at onr

lhr,: u ~ I.I~'>t<' a Ct.JP~. anti v.t ,,,rdj t a ,,.~ 1.aic• »1h• tor 11

\\ tll ad, t"rtbff, plra,-e DM e t h.ar • 11 hf,M"k- ,ntrndtd (ur '"'l\ rrdu'-\\ rtt.J1 11huofJ h,· J"llppti('d Ml • 11ouu(,.-d. lht a,tt,'C"I ~r.-1•n f ur hnll tour h11wl.11 1-.. t( ",



Fnu• y, 11th Marth, ta•7

BOOK RE\IE.\\.

·---A.Or. rot'JtSr;

J l,e •h•~n bark ror, ·= Wetlt,," < r.la!r. r of •ttl•Lr• dod n.; w, b Operators' Pro :Ione; now (1Ut.Ainabl<!-.

W IRELESS WEEltLT n.

:--·--·----- -

I i Wanted!

' I

I Dea ler-Agents 1

I Throughout N.S.W. !

Sevc r.il centres are nva1lc1ble for rt>r1I livl" Dealr-1 •Agents

P repare for 1927

By Linking Up with a Successful Manufacturer and Sales Organisation

Mingay' s Wireless Mfg. Ltd. Head Office • c,o Cas tle reagh St. Factory 56 Almn St.

l'honu1 U 6651 1 H 1165::1 Rod. 112 4

M••NU--"8tt10• 0_._.,, .... ,_fflofHJ• ffltJII .. •~••• - .. --------..



--· '

' ! i

I i !

I I ! ! !

I I

I ! I

! i ! ! ~

I i

I ! i

WII\ELESI WltEltLY f a ·lar- II. Jtl:7.

---··------- ,,.,.,,00, ,,,,0,.,_, ................. ,_., ... •••••• .. •••••• ........ ,.,_oun,.,,.,.,..,.,.,,

Cut Out That lnterf erence ! I ' Build the !Sclccti1·e Tl,rett \'alt•(! Recefoer a~ described in this issue.

The "Crc-M:rnl" A11rl10 Tr11n,.formi,r

( lb.- frnn,rorm,·r that doc-, n< I burn out,) Ut lh l'fs pun• mu 1t· uud di ·1r .. p,"frh.

l!ad Ill Y.O It I c r.nq,l<'l~h Shldr\ed.

i; to l, r,r fir I tog 13/6 J! to J r r

111 t-rn. .. <l 12 0 16 n

l• I, l'rltt 10 n

\ h ch•«r-ad~ ,; n 4 ~

I 9 11 h

1 : 3

The l.11•1 Word in Conden..er Ocaign J ho• "'I\ \fl\-.; l'lt1 HO\U TUI(-' , 11. ' t,.-

1I Sl-1 ll1111d1·r ~ h .. ""' Th L no l,c(t ·r ('ond, n er marl

The "Karas"

:12 :i .j~ 6 3 1 9

\fl)'.',a.\ I \{KG Al: \STt t' Country cu,iomtn! A b to t appreGat.e th" ""onch•rful

rr nfr nrw 1n 0'11"' alH•v• .t.dv,•rtile'm~nt, y u 1T1Ake fn,m u wtU hf' C'Onr-d

Wk (, ntn Tl:,t IA, 1( you Art"

d " th t.h ,:oori. , l"tium lhf"m, :.nd "t' (u h ( II l htuOU"t. of pur i;hAte.

\\ I' r r p n all o~n of 10 • and O\tof',

, "' pt n H4iter1r.,. tir('llk ·u. r l1,1nt>U, and \:alu<' l ncundit10nnl t,u.1r 1n(f't•. J•ayabJ p t J•attels.

\tlt K"" ron Lu" t.R PRtl 1-,.-

The Economic Radio Stores

! !

l , 25 New Royal Arcade, Sydney. i Urabrhra: I' \RU \\J \Ir,: f 11rnn (.hurch •nd Mnquar-1t- Slrt"t'l•. N1on.1 UW,HtL

Phone M 3049

j _____________ ,(,'\\I \Sll ~: ZiC9 Jluntn ~lrt-,r\ \\HL ' l'honr: ,_,_-"., I&??.



l ' WIRELESS WEEltLT ..... ........ ...,._, .................................. ..,.,. .......... .,,.. .......... ...,. .................... ~- ........................................................ ...,._, ......... ___ _ -,

" L _ ______ _jt._ ______ __,L __ ,.._t

Novel Jllethod of Coupling Provides both

Selectivity and Sensitivity in o N,•w :~ \'oft•c Circuit

AJ;I,. for tht• .:-.t'w ,JX Phiko 11:!U~r) .



WllllU.ESS WKUtLY

Wind •r ~ !If Inc I I riu of IM ga ~ wtrr, now •OUftd nn r, th•

Jl91 e bt,...,H tf'rtnlti,,l U ,-nt( J, the .,..,, nh• Nfllt cl""i...d u...S.. •••· ,.f,..I , .,1,1,1, aloe ~u 0,. end •f tha n- ,n,LHY, an,i llw ~,, I .. t lhtt ,, • wtnillnr 1«uttd u-..lr, l>l..t ... t 'l'lo• I ,~oul,l l>e

wu1.ond tkAt • ,t,atanc" t;( •ppro,: 11111 11 ... II aa ln<h •-Id .. parat,,

r---

~~ .\~·"!"~t ~-;;,\, { ~~~· .~'\i:.: "~·;;.~ lde of the {Offllf'T from lh• t rmrr

hum 1, e ~ land thm1 h1n,hr1c 1•1 t1t. dr\11 t"o " •ll'"l•••ly bl~ tD allow • -~ urnr t JNt.U throu1b 1n tdt-r to •t.CW'e 1.los for mu tu Lb.tt bu:k'hoanJ

ThlO 1,a, b pdjn,: -" 4 Rnd ,1nthout iar,7 rvnn~:tlcuu wh,.~,rr u,, t.o tbe c,, •nt 1 be, t. nd1n,g piKU I and Ii •ro li'!ll\l rfld f11r the cu nee lHtn• f thf' rou1,1tn5r turn• fr, n, Ihe nPrlal cln~ll. ro th.a• In octu.a! • r :l2' b nd r,,o t (oar lt onn tc-d to 01:1 'II I• f (R.J of L.1. f1om th nee thv eovtil n~ t rn (b) A taknl r ht p n4 lb• jllamrnt or IJ?, tbot:ce le1 trind1rt~ :pl_)JII, I, 'fthl h P tun,, l•d to tho =• d tenr.wl or t tum• :,I 1-rd,

r,6. 11 n 1 , , ,a.,..

. The World n )'tn cam~ Jlur(- ;Balluil~



Frui WIRELESS WEEKLY "'

P~NE.L ?.O"Y..e;_

• ,!, - .... __:_ --4 .. -- '3-- ,._ 4' r-~ - ~ ·~

,. 1• t.bf .. -0,J•~ f ll :,r t. l'11J11t th1•1 ~ tho l',1.M&bl c-01JdC,>nFer ( 1 111 iit~r.tbn,i; thia w, a.rt- tuoL:inl( 1tu1u ,J,~ bad:. 1'• tho !..rt of tb,., B1·...!J,,, le.!11. and val•~ IC'U't \' .1. JMC• ll.r. r«mrr cooca..ioi.DI' •od ret1• f ion co,1 v11.b tl1•• rrachao l>Ol"Uun' ut du- ,Ht1t,-1ti( k.P.pt 11.t til• lfl'iL--tlarxl aiif.-. :-:,~1.r, ti' , h-~ baµf\w•t d Uy 1111•a.nii:. vr • •ruul r,k•1.'l!I oC rai'IJoo or dUr.i.·t\l and (\li.·1,

-.nx,d C'tt'W-S t1Jt"ht 1n rout ot 1 hi• i.:01

,od 1m,ood.Jut,,I, bthind Iba I h••· iut L,. I he, hoke C. OIL QDJS.I LIIJII, •• U""'o;, ,\. D'mtj <'Ult of fh.,. 1.,nJf"r of 2t•< n ~• turn.&. Tlu tnuk,· coil. uf , oi1r .,,,11 there/or~ be fi~"d 1•1 hL bdw, en lh--· t;10 .0011,6 varl.-d,lr_• t·ur.idt.'fflff N-

het~~~t -~~o;:t~t~Gl~4!:l:::(j~ nd (Jr Uh· fatrnf':r pla,~, the .ur:

AUd~o t.ran.dornu•r, lb tL 1~-tt. oll'ltllf

~ "ltkrY cJt,ae to hi~ t.ruu CurmoJ v1ll or r11und rr10.m fr,r u,,. ,•~111d ;11\1 ,

.ut:ltt. Tb110 rom11a tlw i&.<ODJ uwU•• 1crim,a.DI' t and itJNI ,·ul,·~ • ktl \. vnly otl(i rbeost.&L ut aat.'U m th, ·rnuit. 11nii thi& to controf tbr O«•Lcctn ,.,f\c", onh 'A't• Im,~ tho 1•u Hauie11t NIJ;tt\t.• a r.ur1pl~ 1ng rh1• ~1..•1 -ct hl, ·tt'llt c-u•ron for thi twn >tutfa-r: ,,.lvr. 1'1arNGn." obt.a; nth• c.orn r1. 1 .. t:J nl.u ,wnt 1»11111 u f, r !.he ,•ulv~ ,~t.tndr-1 .o L • u~ .nnu aow t.b1,m1 H1 Jlllt-7.110'1 ,ri I ht' t~ll4wl ,J iif1.v1t fd, anri iii

s'ror1t of thrir 1e!i'.P,."t ti"c YJthc OC'kt:L \tnpJ-, n.nm ·l1Qf1)t1 h• f,r10J 1,)r 1h P'rmtual bu.·•rd I." I,,. l d: t

: ti,, bi.,~b~atd J{a1,;nr; ,lrnuii.: 1J , 1\tk111~ , , ,\'

n pJitrt! th" r 1.·1.1'1.:1 11:a

• ,,.,-rl._ fhr ho, f ~ I ru i:: dia :ru.M (Ir t•:&.L/"efU.1 o(t•lt>o Ill lhl 4.lt1i'•. f'or th,,, wl, rt., ri l '"l1J1t,, un• o~ffl.tcnll a rirr.uit li.i.;.rr:nm. ::,JU 1, l'o•.1;:ib•v '\"AA \1~ri ttJ wire t~•" T rC't. l\ tr vbo&Ojll'Jl,Ph•d, I\Od it tonk \ ory U<-lll ~~ ti:iko. th<" winn,:: titOD by tt11 1n1l l'\-Ot:. th, mtne!lU!:: 1nh \I.ill l c flm .. J• d. Ht.<11t1on .hoafd be l'llid lo h" couplin turmi (rc,m th,.. 4.1, rl.l c:oll \1 "~J11nlmwl Ir: Lhr- ht-amnu t! ,., thl.s nrucla: tk~e t1u n1 arc 'ljtpt,,nd .i.r .. HH tJ tht. filuntent end or 1hr J;riff ,,r (N.'nm1 nn ('01) •ht rt.Lime.ct rnff hom~ :i.w tud netar to tu n•w:doti 11.nJ l ~c- ttur1, rou)d i,.: wou?,1 111 b, umt

• • --l:'t-,.., Z

Tl} h 1 ft err the B t,aU,r.r) ftl J_,:'

th~ 1•1<11k\''"' nu, ihl.' loud apculwr Jh• k ,111U t.u1Mll 1u HnUy t.hi.l lue-1 ,..t 1tiu11. rh, n1ltldlc co1wJMUt""r (CH will l,l, found c•).lr1•011•1y l'rttical. 1'C> ml'fu htbt'r ,m 'l'hllt 11 whr a varnif'T rand, n • r it u ttd. Th£, a.t.ri.11.l C(lltJdr,Ub("J' (' 1 ,:-oy, rnt: I i., th "ilED' of lkrrtm1 coil h l't ~d mtu th<! plUJ.:'. titLt:t ;.i 3 ,r "i"fi lu II tml \~11 nn ,1t11entluu: on

ih N"nr.~l of 11r-riaJ u,-, 1.L Thl! teac • 10n c oudf'ln.li.:r "Ill :It L in n,.t •li r,-... prd , n 1'alunao , n"ntrul • 'J)(•rhaJ,

t hi.. ~11U'11 r nJ.J>' l.'i.U...O u CqU<.•.lJ.l ur 1wo llO bo M.tdul lo keep JIM hdnw •· cill4r,on Vol.at. ~• di.l!iclll~ ,.;u ht! ~,Pt"ri nee d lJnn ~u4: 1 .JJ t.hr lnoil ala\J.on• al c<1mfortnlM lo~~ pc lrt!t , ug h t "'.cri it 'l'iO h~

found l.h.ut the rv.: mu1 lif.ab('lrul n"" S dnc,1 will • tt'id r,r~nd1d r• ult; on two y,,lTCS onlr. ro c,bta n thtJ ',r t

p1u th Sfh,'!lLt'r rn o t1r .11 Ji., 1 I 1h LI.(; o L

..



I or

\\I'

\\I

F r WIRELESS WEl:ltLT

Radio Enjoyment ha,, n~u lln<l fr, ,h lncb am>'ing

ar le 'OO on ~ ~p«tal leBllDI: in5ll"\J•

\ h rt !'I · t I or ~ \ al.-., ~t~.

es

'l 6

•-I -

, 1 •:10 ....... :in,. '\1'111-- 10,.

,l'hf)......);11\.

16 -

.?I -

'11 6

E:attcry to ; ur Set In addition to a \\ODd rful lmprt1'ement to the purity

:! 9 ~11ch

I \ lt ' ........ " -t n, I flr 1 r,;tms: "\" nnd • fl." fhtl•rir,.

I !I 7 f,

I !I 1ft (i

t, l ng 6 \"o t ,\, umulntor 7 h

Wonderful Wireless and Electrical Stores

Pitt and Goulburn Streets :: SYDNEY UH\M II 4 I t ~," '> r. Goulburn :-1. lllt \ ,t ll : :!3 l'ill :--1.. :Sr. Circular lluay.

M~II OHm H 11• 1• ~In ,rn, 1'-hll 1,0l I Ill R'.\ STREET.

·-----·-·----------------·



Fridi<)' 11th )lnrch 19.1. WIRELESS Wl!:EltLY'

BW ~~TING PROGRAMMES 1~·..,;,-.,."'l~:~_. i,-.tll'.-."'-/M: ~ 1~(7 C9MING WEE

.......

Friday, March 11

2FC. ~YDNf.)

Philco,, h il\f \ i,,ibl, (h8.l"J:'t' lnd.Jcalor.



T' r t .C" .1 WIIU!LESS Wl!SltLY

---------------.... ----------------------------... 2GB, SYDNEY \ • ,yl,_

.. 3LO. MELBOURNE

Brc-.1u ... ~ Un:.: ( u. •1 1 \11-1 ·, 1 Ltn d ~i

2KY, SYDNEY

1 rtd11,

' I

"'bflt·hs arc ,\ri•tu1·n1li; among II 1111.:rir"-



I ru!r7, 11th Ms•

llM p.._m_----f.00 llA

Wlt\ELE8S WEEJtLT

4QG, BRISBANE Qu 11 !.~nd Radio s~r.-icc.

\\ ••t Lrn •t.h, 3B!i Mums.

y

ltffiPAT t: ::.10):

t°""' adlo9 I...Nll ._ • .. , c.---·--

5CL, ADELAIDE I ..,,,,ar lln,sda.t n ltL

w tr daJ,

World " llt"SI Ul!C.'~;;.~le Jlallcry; 1 'kiku.



6WF, PERTH

)ray

Saturday, March 12

2FC., S'i ONEY 'RI l 1,( ri_ .. t,,,

WIRELESS Wl:£1lLT 1"1da. ·,t a.n: h J !•Zi"

IA ,. , 11 .. a \'oJ .. r""'°

2BL, SYDNEY



Fndoy, ! Ith :\lard,, I 12•

1 ,1\ pfll. .-,.1'0~ L"kc:~ a,,.J t'bu.a I 41J p M. Ut)fl!e frNln-- •'~ th,, \1,1,t\ '4 it• \hu•l(oal rir,,sunmr frl,lffl 1h# Bt NJ+., ': I.& t•.ffl. :l\t,,ult ol •11 1pl,Jf"tl111t hi!, rt-ii "•

1~1u.&a n"'l• S', •- '"""i. ..-""'"*''• 11aU1ns .,hl<P1tr,... Ir., c.JUrtn7 t u,. fiul'

f..111 f\ ,o . ..(',1 ut..u.,- ~•• from tt- • 11 • "1 f'.,IJ.a ot a..ll '"'°"''""' • rwl 111t..bl~l•" 1htur""

1 ,~ ,, "" Tai~ (TT", Pa.tr'.IA:,r. r .. vra11o~" 1 ~ "Ir A..(; s~ ... ~-

1 p.m (j l' t'I C-~lJ an.1 t"h''""' l:lraa1tmo«t#.n l 1'{'irli,I ( horut

'-' .,.m.-l'r)' JUld Ltic buUt'rlkl,t l-N"l s ghanJ,

J 13 it• Mr A T t •• ,,.., •~ ...,,.., ft.JI p ffl --lff' ~ 11-H.IN.b ,cor..-.wifll) j,l;.f pm M.Jlllf t;l.t<1 •'Ind,..., ('tll'Pnnol -t..Jl p JD. Mr 1.-.IW" 11.tt"fonf l,.ar \ ~•I • •4 p..ta 'IW MU f.AJwru14:h.,_ .uWll'Wtt~ l.6• p.o,. [""6-,nw, f t,-.11,;,wt c ,h,-'• 1'H--

rr-.m111# 'W1"11tbrr ~ Ul,I t r,,or• a\ ti)' t'PUfll-a, oJl >tr 0. J. V..ra. G,wt '1111<1or.lic-W..

• lJ.m..-G.J" O C:k""li: •nd rh1m,-,. I I t• ffl --.\f'ln,,t1ROl!.11WHLI I.If p a1. In- alid &ric lh1Uf'l"TICld f21 p.m )ff' A T 1,11rn4 t.as r .., _ _,.,_ Jtt,>, H• mM•" l • I r....a1.-ka £a.lit Fm11Ay I • t ~.IU. a,.. 1.,.1"' Hn-fvl'tL t..$1 it rn .411 uu Mat.. l"(lth .. ru1di&t 1,,.

U..1 p. .. ,-Thr ,,mi.-ddn Ua,,.,.,. n,.!ld ~.~ f,-, tb1t 11.11 ko1"' t h• .4.-r.• h..u.adoni O rtna 1h,, tn1,o•n111\il t""''",,.,. .i.r:itn1 ,,,,... 111'0119 by NnlltffJ' If \ho ""S-11" ,.11J hi, (,l',,-dc••'-

U rnM11lrl,1 --', 1• 0. Cl-«lo. ... (;h mn. tf11,tkil'llll }..nt.lw.111.

2KY, SYDNEY

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WIR L&&& W£81tLT

With the "Trouble-Shooters" of the North Atlantic

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Smooth power, un!Jul,ng ,!epcndab,lity 0"'1' lonir pc-nodt and unckr all conditions of aervice nre qualitiea dem1tnded m the radio battcnes uted u, this danieroua naul aet'\'ICC.

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WUO U IJUITJU U'T1JL'S

NEW SYSTEM T£LEPHONES PTY. LTD. 280 CASTI..EREACH :,,-iu:ET, SYDNF.Y

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Marconi School of Wireleu 99 0-Stttet

SYDNEY



Wllll:LESI WIUUtLT •s• 1'h,~•

2KY, SYDNEY

3LO. MELBOUPNE

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Wednes., March 16 2FC, SYDNEY

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F in<t Cost is Lasl CG.'ll with Philco. ••••••WA-' #44 •



r r WIR&LESS WEJU~LT F ---~------~---·~--~-----~------------·· ................. - .... ·•7 Sntisf action, not for a year or two, but for a i

lifetime, is built into every Magnavox Set. i !

One Dial (5 \ 'td••l·> Radio Rrr,rcscnliny lhc ''11e plus u/lra'' in l?adi,,, the Magnm·ox i• ,\mcrico '~

oclmmrkdgcd t,•adiny IJroodc·ui;I Rrcrfrrr

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The "Berkeley''

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J'nrc, rnmpletr,

£92 Olh~r \lndcl"- rompl~tr al

,-£75, £65, £51, £40

CASH or TERMS

JI ar thr,e \\nn<l •ful R, , her ,lcmron traled 10 nur :-11t1ci 11 Au,ltt111n Room n be made m yo r "" h n

Profusely illustrated Booklet, free on 1equest.

J,£ltSimmons fol • 1Thir \Vorld'• Cnatctt SportA !,.torl!0

Headquarters: Ii \Y~t.\Rl,E'l, S\'D!\E\ .\nJ al 8Rh0 \ \F:

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2GB, SYDNEY

,,_ .... fl .... I'll. , .... ... .. , .. ,. UHi • .,. tnu am J~ ...

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At'"t R!'liOO l $10!".

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WIRELESS WBElltLT

3LO, MELBOURNE

Tht World's \. ~rd1cl ··Burg~~ Lasil) Fir•t !''

A1''l1 RAUH.:. TM w,- •

1' 1 ,UC ION

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I

WIRELCSS WE&ltLT

Here 1s a Price List of Parts FOR THE

· la I 'larch, 11%7.

SCREENED COIL RECEIVER Issued Recently in" Wireless Weeki):·

'ft, wwlrln modtl nda.·tll) ron trudl'II from Pftr\8 11nd aM"-ir-< from 08\ld Jon • Jrodlo n p rt m nt. i no" on d s pl:n I h•n· at !2 ) orl< Stred. ~ it 1 m(-dt41tl • Jt I an ucdlcnl e:<nmpll• of n ••h•rti H thru-,·nh er, llfhinJt unu:pPt• trd m! Ii...

Th~ hiih dt' p rt~ rr all nhtalnahle at lhu id Jnnf!I• Radio Shop and pa.n,L, will be dnDNI rrct' ot <"h:trge and nil ndiiw l\lld &'llll•lanr• irh·rn to the con• lnictlon,

l llrad)P:,o!,,11k ••.•••• , •• , , •• ., lli/-3-Yalve Sock ts. a - each •••... !11-~Emmco v~;~,. l"lial<. !I 6 ea.ch. 2.8 I ]-..00(12t'"i Cr1d Conch n."er •••.•• , •• 2,e 1-Termmal ttoard with 7 frrminal~. 3/6 1 T, rmmal Bnnrd "ith 8 t('fflllnai•, 1 '8 l ,..J9zcn Jiu h.-tl"!I • • ••• , • • • • • 1 ~ fP1 hes n! 1Mcuir hirhl flex •••••• Ad. 1 llattcry Clip • . • . . • • ••••••• 11d 1-Bll t hMrtl, 19-111. x !1-m x ¾•m. :? 6 1-"I rtrned Coll, ot ,phU primal')'

lYP" • • • . ,. •••• , ,. 14 6 ,-o No. 30 n <l ,. Wtr~ .•••.••.• t / 11

'Total l10/l2 I

DAVID JO NES' For Sen1e• I

_ -·--· Radio Dept.=. 22 York 0

Street, .. Sydney .......... ,u ... - ....... ,.-... --J



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WlaELESS WEEltLl

A}'i'LU."'i'OON ~tu~

llJI -1rom l 1 •~ 4'fLc:rnaior rlf',1 )I.ta.It: frnftl LIM IP-Ut ... ll~l ~ Hett'! l'.&1-..._ ~p..,_., On-'-tn

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GWF, PERTH

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WfflELE55 WEf;ILL1'

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W arneford & Son I RADIO ECNINEERS i

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to u ....

I, your rez«- ,er & lccth~•

1f It bn' t, let u kmm. \\ , i

" Ill r,,moclcl \ ottr rccei\ er j a lonl( mod<'rn linr lo Pn>· j dun• maximum e:'icicnc~ i

l .oca.l condition pla, 11 big l pilrl in j!oocl re,: Cl'I 10n. I We " 111 de •11:11 1111d l,ulld a ' j reH~ivt:r ln s111t i

~ He" 1nn11 rail hfolh c-arrn-d

out al rl'>L-.onablr rate•.

Write B"x %"7, Gt;, G.P O, Sydney. ,

I ! L Ph,m Pct. 1~.~~-~.~-~-~.'.,:, .. i

Siandard 2-Valve Receiver Complete wllh Ac<C£sOncs.

two hou lo lal 11 nnd 1nnmt1 narH.ci 1.0 t than £1 Ill • fl('r .car

Price £14/10/-'' FROST " HEADPHONES.

I r ,I I ii",riphon, llrt' hit hi ·ccorr.,m , d•<1 111 ~'Tt;itlj u od lietni: rel t, e anrl 11c, ural,•. The) 1 r lll!cd con tnn!h by cltp<!rlmenl~r,,. "ho ne,d a belt r tla, ,,f ph<>n<', n no hutler 111hlit111n .ould I m I to) ur reccn-cr Pritt .. . .. .. . ~'i -

FAR 1\1 ER'S, SYD EY

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l"rldAJ I lh :ll_•rcb, ,. "

Thursday, March 17

2FC, SYDNEY

WIRELESS W£EJtLT

2BL, ~YONEY J hur.,de,

.IC< KS"r.f BJ: ION

(,1 r U Llotl as l Ch,,nq Y..pa i:•r ,..port ~iitMM p,ucn,..,_ tN°' ui.1,..,1,e

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Pa,:a Fi'l

Low Loss Parts

.00025 .0005 .001

..... 18 6 22/-28 6

, ...... 23/6 25/-33/6

REACTONE Low Loss Coils

2S. ,s. tta. , .. I ,.....i I ~ 6 6 5 7 ~ U-.-.-..21 :J3 JI 41

ThOUH'flllf• ol •..t• hue Nftl .,.. .. thow.u.id~ mora •J°t M ,.,p,o,-,.J

I :a.-, ,111l.-tiblt.rft8

HE.Am LOW LOS-5 CO!iOEliSERS

I AN RF.ACfONE LOW LOSS COILS

W. MAUNG & CO. ~:.:.:::u::.:~:~.J

WIRELESS W&EltLY

A Radio Bargain 3 Valve s~t in handsome cabinet. complete in ~ery

detail, includin~ -

Loud Speaker

Exide Accumulator

~4- \ olt B Balt4.'r,

''• \'oil C liattery Larj!c \ 'ah-ell (the be11t)

\erial Cear

,\ guarantee u·itla ('Ccry Set

Two Prices:

Price • c£ 16 1 7 6 Prict> • £19 17 6 Dcpo,.il -

Weekly -

It\ t> Deposit • I 18 6

5 !I Weekly - 6 9

\\ e charge no inlcrct-l for lhe11e easy temu;.

The ea~y term~ al,;c, ;1pply lo country customers.

Take Olli! home to-nigld !

Radio-W'Less Mfg. Co. Ltd. :n 7 t;t>ori.{e Street :: SYDSE\'

lckphon,·: U fi71i



FriJay, lltli Jl1Ucb. Ui27.

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t 1'b-<l'PO Olv.li ... ~ .,_._u-n 1"l.>11111'.&I Cltw•

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WIRELESS W EEKLY

3LO, MELBOURNE

Di.unond-Grids In Every PhilcG. •



Pace FL . Two WIRELESS Wl!.IUtLT F

- ....... -••n•••--•••• .. •-••••••••••••••••••••••,•• .... •- ••- ••••••••• .. •-••.,.-u,, __ , ....... I

E41(h C <1lmo,o, Nr-Nn 1nr St-l rtf•r f'nL lhe l>HI

T•o \ •h• I pJ,.ouu 1hrf'• \ a)u <:ol•u,,nt h•ur \.ahf'! I olmu.-01 I of'-\ •hf' l olmo"•'

'" - -rto ,~ -(2:j - -

U3 10 -

Colmovox

1h• t. a:tin b• otf~n"•t

f our.\•h" ,upc,r C "1•o,o, I••• \ a.ht- ..,"fH'' C uh,w,u,

:!'<lo11.~\ 1hP SupN t 11lm1nu\.

Receivers Are Complet l.' UJith all Accessories inc/udiny Loud Speaker, Batteries, Aerial Equipment, etc.

othlng Further Requ ired.

1•\S\ II 11\1~ 1•\, Ill ,\IIHA'<Glll.

, •u 111J1· ltnt" of I N'f' od,,c\ c.nd

U7 ID -II~ 10 •

!,!:; - -

o;n '" II ,..,,,uutl\llfll~ lll:1'11!11 \I K\ UIHIIIII,. lflll'l 11 111

1 Colville Moore Wireless Supplies Ltd . . '~••••-••~-....... 10 IIIJll .... ~ 11!.l •• I . '.'"' •Jlut•l .. \ u,tnhal. s\U" ~ ........ f'h,,n, ... R?J#l .......................... ,. ... J



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ITTl SCL, ADELAIDE l hur da

4QG. ;JRISoANE Jt,ur b

An'USOOS OS

6WF, PERTH I h111 Ja;



WII\ELE8S WBBXLT

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1 he mrchani,:.d urc11a1h of tbc l\lullard l'.M. l·ilamtnl can l•e11a<11•eJ hv ,h~ l.l,llhat nhen,a• , 1hr onlinal"\ filament "ill hard) •Uf'l'"" one f ,at-.• the P.\I Filamclll will •urrort four. . r'hh JIUl!'fli.01..ci h ,luc to thr •r,eei.al mtral n.1r• fl\ thci j P ... \f, I ilamrnt •htch u WI 1ouirh 1ha1 h an be deJ ,a .,i kaou aftC"t h"OO heun Lte TM r M. Fllammc t• M"I

~;;:,J J.;:;:!,':ii1!Ma:!=!: j':,~~'::'i::1't!tt;:0:1 th~ ,-.h,.

Mullard THE·MASTER · VALVE

A,•

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All 'tolla,.,-J t'•l•~s Orf' m«t:ufacfurtd ,u .U11U,ud Work,. li,. ·•If• Li1(1f4nd. j

Mv•f//>tmfn;~;"!:A=~;~:~ I~ ;;;,;~;~~~/(,1;•1~;;,:/r;v~~;::~RD I/OUS6.' I 1 __ ,, .. ,,,,,, .. ,.,,,uuott•t••••tOto+• ............. ,.H+t••M-M .. OOIOftl-.__fMl-.. ttt••••-•M ... -Mtl-••---.. •••••to+-•• ... •••••M-- -•••j



ud .. , 11th lta,, f

Friday, March 18

2FC, SYDNEY

WIRELESS Wl!:11!:lt LY

.... .

Saturday, March 19

2FC, SYDNEY



WIRE LESS WZEltLY

________ _,... ·=-----·-···-·-••¥--•-·"·-----,

Ever-Ready Radio

last

• The "Standard" "A"

Radio Battery. ,,_

...

• 1h fMar a-r tnt,,. ,,.i. ... ti• lllltltlt tteM11Jik•! -nlN-

it, ,oba1n-d, llr 1Uln&' ...

.. t.Ntu I A I &U.P-r .. ,,01n1ttW A ,r1raU.

Batteries longer

The New Ever-Ready No. 126 or A, B, or C Battery

tJ t1 of a croup uf raJ10 bnt.ttth 1.J !ul fl w nil , 111hth1t, hnJ

a.mpl ration.. ~ n 2U x 4 x ll Mo • wd'ul !or h~ll.J, :eJe-ption"'•• bgr-gla.r alarmi, tm d,i;•l 1b,, rte\\ 1 tnrtt hra a tierm r.wl Vu1t•

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I 1 63 Pitt Streg " SYDNEY I I -____ ,,._, ____ ,, .. ,,,, __________ , .... ,_,_,_,, __ ,__. _ .... , .. ,_,_,, -

Friday, 11th M=ch. 192,

1,•:, •·•" ,\ G•Nf'flfl'l.e' 'l"&lk t.,, Mr 0 J Lvc:kln (' Jlood.-wn"J.

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-PJ\f.ACF. THEATa.F'- PITT STJUl'..L.,., !Wl>~"r\· TITF. FIRST ACT OF "fftlt.1.t, Jn:AJ..O' thti"' m~JiOal ciomMU w1"1ttf'1' a., Oktn tit~• )hHW by Kear,#'tli u,,.Jll,d.d .F,u~""• Ardni1' .s1i..ot. M1,1,1-o e.41 !J1.NC«M', C,-nl Util'tt10l4,. ACT OS~

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MUSICAL NUM9F-RS

Ot,ft,,n.. E11,..,.b1~. • w.·u Strfk•" lktfsr. •lliiUo HnJu."' Mon, F'l•b•r • t· twrv• So1,c ·1,;l~tra," C.'h.,,_ Ml"l..-1111.t.tl and

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h,m11t.1 c:1"'at,·d f\Jr toll ~uw thn rtu y f th+>.r t rturp I ittU !lvlu~, ,u11.J t...- ,,~ •en .. &CT01 Ui.l)u.tl:lctl of mil ll! .-thd tn th 11'14' l"Y lh,u, rnarth of moat•rn s..•.~nce :\"utti ng In. tr. uut..:1or • w1 den Wt- m , .... uld .. "~r Cave µ1l!~rc<il her "or tl1

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WIRELESS WEEltL'I' PanFif~

---•--•-••-------n--n----•----,

'RAD/ON . - I

~j~•iEfORE you build the three i

~ valve set described this week i get ou1 Catalogue of Panels and '

parts

Sets built with Radion have that

·· Fuctory" appearance so hard to

obtain \.vith a ny other insulating

mate, ial.

RADION The Suprem e Insulation

Do >Joe take substitutes. If dealer cannot

clirect Lo us. supply you,

your

write

International Radio Co. Ltd. 200 Castlereagh Street, Sydney

91.92 Courtenay Place, W<'llington, N.Z. ! ,_, ____ _ !

·----------... - ... - • .....,J



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WIIIELE•s WEE5LT

13/6 Radio de Forest

AUDIONS =-

13/6 12/-

24/-T11e AUD/ON YOU WANT is in this group. Special R.F. DLA, Detector DLS. Audio DL7, Dull Emitter DL3.

i THE Be:.t f fnun I INTERN.U~~tk~~IZI,~~~!.~. :.° . LTD. j , -.ul.:KTENAY Pl'\ f \tc1.1..1,..CTON ', :

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lN THE LEADING PARTS AT ANY TIME THEATRE

Ltd. International Radio Co., 200 CASTLEKEAGH ST.:: SYDNEY

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All Readers' Queries Answered Here

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WlllEL&SS Wl':P~ LT .

,------·······-----•···•·-·-··-At la1St n ew s hipment15 ha~e arrived.

The Balkite Trickle Charger A LONG FELT WANT NOW FILLE D

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NEW BRITISH MADE TYPE AF3 - 42 6

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Pai=,, Sin7-l'our WIRELES S W EEJtLT Friday. 11th March. 1~2'7.

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Slil.F CONTAINED RADIO Sl'T .r ~· f.Jtll'erlams <.,t'l'rtJu/4n•

NO AeRIAL NO l!.ARTii

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~U \,rluc \OU TJ-1R:\lS AIUL\~GE.lJ

ENTERTAJN WlTH THE "PORTA''

. H. J. Hapgood

II 11...,uLlc. ,.,.., l'rod t

Cha.Ilia Hou&e, ,\I' \BLI! .\T \t.l. IL\OIU

Tllllf.S

I Martin Plac.e ,: SYDNE {

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Jtnjoy Real Broadcasting

\I 11J i,u, up ny longc-r with tinny rtcept!on nof•~•, , I 11 1 h, ~nn u. cornpletelr cut out with :\ MaclurClln 1'o ,~ l'ur,lkr! ln thiB EUllk .•cn,on, lOU, static nolsc~ 1 ,ar L 1dernbly le•sened with one of thes1l tn•lly htt d I trument Fit one Into your ~~t to-dar, and ll vure u111!i•teo1 let! .-eception

11 THE MACLURCAN TONE

I 21 1-PURIFIER

l A, all Dealefi ) ti&.uf..cllirzd by ELECTRICITY METER MFG. tit. tTD., $yqey, N.S.W. L-•••"--"'-"'"----•----•------- ----•---u••••-•"•---



WIRELESS WEEltLT

~---------------·-·-········-····-···-···· • • • • • • • • • • • • • D II

-• • • • • • • -• • • • • • • • • • • 0

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

Amalgamated Wireless ( A' sia.) Ltd . ANNOUNCE that from March 1.1927

Tl1e following Prices will obtui11 for l/1e uncfermentioned Valves:

A.W.A. l0IX A.W.A. 55 A.W.A. 99X . A.W.A. 99

11 /-11 /-131-13-

GENUINE RADIOTRONS

UV. and UX. 199 • UX. 201A ux. 120 UX. 112 UX. 200A ux. 210 • .

13-111-151-

£1 , 15 -£1 / 10/£2/ 10/-

AT ALL DEALERS

Amalgamated1'~ Wireless ~ra1as~

97 Clarence Street, Sydney 167 9 Queen Street, Melbourne

King and King Chambers, Queen Street, B_rlsbane.

········-··-·--········-·-············-··

• • • • • • • • -• • • • • • • • • • •



~'tlday, l llh lforch, 192i. WIRELESS WEEltLT

The Fan1ous AMPLION Loud Speakers are obtainable from all Radio Manufacturers

and Dealers throughout Australasia

.• J,1 •f •,\IPl/0\ .• ·.,,_,,.,)LTD ,.,,,... .,., ,, .... , ..

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