WIRELESS WEEKLY - americanradiohistory.com · The wireless weekly : the hundred per cent Australian...

The wireless weekly : the hundred per cent Australian radio journal

Page 1nla.obj-632037630National Library of Australia

I l i I I I I : I I I

I i I

l I I

I I

This Week's Feature: HONEYCOMB COILS

Keep Yourself up-to-the Minute

01\

Radio

,---- -------- -

Ai.k Your ludio Supply-Man

LEFAX Perpetual Rad;o Handbook

Ir Grow, ,.,,h Rn,l,o. You get new, u~cful, :1Ulhrmc m•

fomuuon FR[£ every month

\lnltali.an Dt1tnhut, ,

Welby Radio @. I.J RfHAJ. AH('A{)/ ,OIM't.·~



WIRELESS WEEKLY

UNITED UNITED Type A- I Ratio 5 to I Ratio 3 ~ to I

Let This

Us Once and for All Times Settle Question of Audio Amplification

Tra11~formt•f'.'I, iu t1rdcr to 1,!i\'e fH~rfet•t riudh, nmpliflratiun u111!-ft h:l\-"P u l'hnr· ·1 '"t•rht i1• 1·111",·t, :1.;; nc:n tn ~ strnijl'ht lhn· :1s pu"-$ihle.

United Au<lio Tran~formers have Just !-,.IJ.i•h :1 rurvi• a~ L·,111 I,(., ~ecu fr1•ul the above cbnrt.

,\ JICl'rfcrt irndio trnnsfnrm1'r 11tf,•es::il I dt•s tLe l1t.·-.1 of ••nro awl windin2 rle... ii.:n :11111 1·11n"ftr11dion

ln the United the best of core iron is used. a proper air gap ill anothor rea•On for their perfect performnnce, and the winding construction and imped ance fnrtber combine to make It the a bsol uto best.

The Good United TranstoTI11.ers have solved both questions in au admirable manner.

Last, hut re,1Jly first, :1 p~.-fed autllo tta11..,.for11u•r mn~t ~iYP prrfi.•d practi-1•ril result•.

Recently, United Audio Tr;Jnsformera came out FIRST in tests conducted by the University of Callfornla-concJw; . Ive proQf that United is supreme.

Ask your dealers to show you these tran.•formerR. and other United efficient Radio parts. Variable Consensers, plain and vernier.

Try a United Radio Frequency Transformer. Now on the market Every Ra dio Dealer Sells

United Radiovox Receiving Sets 1, 2, 3, 4 or 5 Valve s give Results at any distance \\ rik for Ca1,1logue.

l United Distrib~!~~Lt A~o~!v~· (N.S. w.) Lf d. ,1__2_s_,: ... :_A_.,R_,r._N_c_E_s_T_._· _s_v_o_N_E_v __ a_nd_a_t s_9_2_~u_~~~~~:MEL~U-R_N_E~



uH'I< IA( ora;\j'i 0~ IUE \i'"lllALA ... I.\\ (l\lll<l

Vol. -I Fr1tln, \ pnl '.).-,th. )11:!I

THE P.M.C's. DILEA1MA.

1 1 tl•·I 1• ... r t 111n, 11( t l1t1 t'OJJlt .. r•·llt't' n :-,.) 41-1 ·tH r,•:,,,.11l•t•(t m tlt•' drawing- up 1f u

m "J1u•h 1, 11ut it1P•l el,1 "lt,·r•• 111 1h1·,l· 11 1·, pr,'" 111- 111 l1111w t 1tt,·rupt 1111 !hf'

l llw lh•lt•;.!,111•"- tn l•"l1111\1' ,;uni .. r 1111 n; !1om t!J, r•,,.k) 1• 1111 " •I ,, l'r•··• 111 ,1,im~ ~ -.lt-1111.

rd 1•nm10on1t, ,•ml r,tt.' 'UIII t rn,~ i'i ,It ltl • •• ,rl,\ ,!ot,

II 1ttm.! I Pl I ) I ii tu 1111 f' \ [ n ,,hi 11 ,,r 1111,~ lu!; hroa<ln1:-.tiu~ 1111!, ,rd).

1 ,1 on :-.unih1r l111t'"' t I tho,• ... u,·\'t'"--.lnlh I hy th, BB< n Engl 111! •

n-,Hh '" ~ ~r-f t 1,,,

No'

···-·••MUu,, .... , ........... ,, .... ., .. ,, ................... ,u .... ,,,, .. ,,n,,u,,, ... ,,, ... ,, ............ , .. ,,. ,,, '"' Ill "'''" ,,, ........ ,, ............ ,, •• , ...... , .... ,, .... , UlhUHI' •• , ....... ....

I h111. \1,I

"'.tlur,hn. ~llllllJ.) .....

\Ion .• ...... J'u,·, .•

\\ •·,Jn,• ....

Roster (or Week ending 30th April, 192../

i.111 '" 8.0 8 .0 IO IUO 11.:lO to 11.11 11 lo 11 . .10 'I .lo tu Ill 21 2 IU !. ( ;1( 1 IJ l .l\l .! 'I 21 \\ .. '1, ~\ \I

:! I'\ ::? '// ~-' .? lJ 2 c;R

.!.f1 2 R \ .! GR 1 IJ 1: 2 n \ 2 ca~ 2H 2 n \ ~ (;H 2 JJ 2'' 2 IJ

ill 2 H \ 2 I; R 1 11

I<> '" 111 lit :! /(,

UHtO .. Olo ,.,, .. ,u '''""-fl•" l•t,t11•U .. IUU•lloU .. Ul_l .. i O-IIUt1M•U.,OUIIUtf•H!hoo, , t ,+II ,, .................... , .............. ,.,.,, .. ,11fU .. UIOot•1•0,o+ununUUH•n .. 1tH•U,oll"llt•>toOH1



2 WIRELESS WEEKLY Frida:,·, .\pril :.!5th, l'l:.!-1

The Final Draft. PROPOSAL OF CONFERENCE

"'"'"""'""'' '"'"'l!l'"''"""""""'""" Tht (111/wr rn;; pr11Jlh.'i,::d 11luration.< ta the· t· tistin~ trin•l,•.,.'f rt•.tuda.tions h.at'f /Jeui drmt•n up b~ thr drfrgnt1·1 to th,· Rmlio , ·,injer,·,i,.,• ronr n1e,/ by tht.• P_.\I.(;__ in S\·dne>·· 1 hl~~t· proposals, which hai·e been Joru.:aTded to th1• /' \/.(;., 11r,· , n,lorw,l /,1 the 1Lnd,·rmentio11,•1/ botlfrs. ,\.S.lr .. Ir.A .. S.A. and Queenslnntl brnnehe.1 of rJ,,, 4,s,;. , il,11,,11 tor /Jnc/opmcnJ o/ IPirclrss. South tustrfllian /Jroadc,Htinp, Company. Associmrd Rf1dia f.nmpnnJ. 811111d~

,..,,,-.;.ffD •!frrlnt'l I /...rd .. 11nd Trt·st J1,:slralian Farmrrs• Ltd.

J. Tlw p11hlH t\l \w {lllrwn•1! tu U-i•

"'open ~•t,;;::· 2. i\n, fnrm .,r l("tU:lion lo hr JI

lu\\ ,·cl. ln11 1•Jd1 li1•1·m·t· .. 111,uM ron tain 1111· prn\i .. i,,n 111,n nu .. ,·1 u ..... ,J i11 -.m 11 ..i auunnt·r .,,. (11 1 ,1u,.t• tl11• twrinl lo ttcdllali· 1lminp lir11a,l1•nctint? lwur ...

3. Th, i-.. w ,1f a t·orn1.:nnn li1·, m·t {,1r all 11\~n,•r ... of fd«lifl n·rt'hin~ --e, .. at I() 1o.hil1inu, pl r annum lor 1h, hrua.t.ka ... 11nt? .. ul,~·rip11011. t•'\,·111:-.i,r ,,£ 5 .. hillini:.~ 1wr annum r,,r 11u f.l'l\tTn •

m,·nl In c;p,, .... ,,h,•r,· u i..,·t i-. u .. r-d fur 11d1,~r than drn1h_· ... 1 it· u-., ... an adtli 1 ionul r,,,. ,.f I() -hilltnf- 1 ... char~e,I. Th.,.. hn,tttlt-t1-1it1J! ... u1i ... t•rip1j1111 j ... l1rrt-> in;,1ftn 1Jll1·1I ttw "rn1•n111•:· ~,ml -.hall 1J,. 11\1 ln--iH of nll hr11J,lt-,1-.tit11,! iron ... miUi1w rnvuh1t·'" if ~rn,. hliirh '!"Jmll h,· a!'-r1·11~itw1I lJ\ tht' P.\t.(:. and ,dlf•n 1l,_•tt'rmin1•1I. i:ul1IPd 111 1hc 1in nr,· £,·,· rnHI i:nllf•<•tf"d a"- o .... ep;u,n~ i1t·m.

I. \ "d,-Jler·--- lw,·nr<· fe, ,!toll Ill· lO .. fttllin~"- p.-1 annum. ,,ith nn adclirional dlflfP:f" fut 1lf'mn11..,Ln1tiun pur pn--t>.... \II upplira111, f11r a •l1·alt.•r•...:, lin·111 i ..ilwll -.HJi.._f, tl..11 \{i111..,lt•r J.:- t 0

ftj.., hums fi<i,·-!;. Th,,r,· ~h..tll hr w1 n• .. trirtiun .. 1;n

th,· 1-nl1· .. r npp:irat11.... lJm"•\'f•r. tilt' namr'- anti t,hlro -.,<;1-'),,, of purt·h:1 .. (•r~ of n•f''f'i\,.in~ .. ,-t .. arr- tu ht· rt·r11c1l1•4J Ii~ 1hr ,.,r-ll1~r .111d a lJ;;:;1 ,.( ~•Jc:h ;,;,3Je,.. i-. to Le n•ncldttl nmnthh Jn 11H' P \ 1.C.

6. l.ach lin•ru 1· 1"'- If•· ht" p1·rttHHWnth·

a\.ailahl1· al 1hr :1d1lrt•i..1.. ,, her,' 1l1t .. .,l'l

i, U)!.1 .. d. \ Jlt'll,ilt) rif nnl li•q.;. dli.111

fif1, 1u,untL ... CiS{ll for lwu~in~ ., i;;rl v,:i1lir1ut a Jirrnr"'

7 Rnin•lr,,-rin~ Lran-.mi11inr;r li.ct·1it•f-..:; --lutl l lw ;,( ll\o h.inti,-.:-""\ ... 1in•rw,·. 111<" hollln-.. •. r ,,hit-h ... hall 1 ... n·mmh•"· at,~tl frnm 1h, n~\C•n111· : mul •·tr Ii l't•tK1•. \\ hit·h ,lt:!II 1,e i:o:.._o,;uf'd 11, 111•r,.on"" 11r firrns "ho dt•"'irt· ti) hroudn, ... t without rt·mun,..rn11on frrim lht• rt"\• cnue.

R. Thnt prnn--fon h,· madr · n rlui-.n•po'-'·rl .1m1•ndmt>nl to ilw r,~g.ulu• Tinn'- 1u thf' P.~1 r, 1uft,·r rom..ulta rim, ,1,lth d11· l.it\\ 1offiN•r-= 1,£ ,i.,.. Cro\\ n' wirl1 u , in, uf prpn•nlllU! thP uniC,.,I Hr m11n,11Joli .. tl· 1 outr11I of tho

or mot<' ~1 1\"' rl:1-..: hrni11lca;.1io~ lic•t>-w .c;;ceo; witltin anv no,• :-:tnrP.

'I. All .. ~" rluH statiun- •hall hfi,a1ka~1 --1•\1·11 ,lay,;; pt-r w1•,·k. ,,i1h a minimum uf .. ,•\t!'O hour~ p••r Jay. ex~ , t•Jlt ...,,.rnday,. v. lit-n tlwrc· ~hull Ii,• a m1nimw..11 ,,f four lwur..i.

Ht AlJ •· \ "" rla"'• ~talio11 ... c,pcrocing in an, oru- :-,.h1tr !--I.all .lo s.o under t,nr 11111111:. and -h:111 Ii,· irientiticd h, a t·all .:-1¥1J. "\n trnclin~ lirm nr romr;any 11~1erarinµ .:in "~\ •• 1l fa,u;; ~Int ion -.hall in (In, \\a\' Lbe 1h1• ... 1c11ii11t ff1r ... elf-atht·r ti!-inµ ·J1UrJlfl'lf•..;., ur link tlu• ,nl..- ,1( ;,:H,11, -.nld ii) tllr'm with lhrir i-;1ntion, ur ai..-Hr1.th• it "ith any 1rnJ1.,• uamP.

11. That tl1t• ma,imnm nmnl,t·r or ·• :\'" LrNtdl·n..,tirH? lin1ttt."cs. in eurh "lah• -hall IJ1•:· \ew Snuth Wale•. ,1: \ i, t11ri.:..1. :\: ()ut·cn ... lnn<l. 2: i::.outh .Austrnlia. 2~ We .. tem Au:-1rnli;:1. 2; Tu.:munia.. I_

12 llnldn- of"" "A" rla» hroadrast• In~ lran-mirtin!! lkrn('{'l:-, j .. -llf"(' rri11r 10 the 11111 Apf'il. 192-1. ,111, I ~ h,1 a« Fn· tiLl1·,I 1,1 n1ntin111• 1,roa,k~:-t in f! und,·r 111, .. -t~ pr,q,11,;•11 11f'\\ l't''!Ul..tti11nc. and \\ 1111 tin "rt hrmu-1,·n"-t. nrt> lwr1•in1lftrr tnm1·d horiginal lifrn!--t't' ... .'' :4imilurh. ,tll 111hrr ·• \ •· < ln.: .. hrnaUea,.tillJ! trnn~inilliJJi! lit rn:-r•,-.., nr ,1ppli,•t1J1t, fur ,1wh li,•,·n,•r-"'. nrn l1crcinnftcr temlt'd ·• .. 11h:--1•qut-'nl lirt'n~f"t''.'-.. ::111tl ·'~•1h~P

qu,•n1 ;ippli(•unLs" rr.~per·tin!h, l't "Ori~inal lkn"''"·' .. ,-hall he n-

m11rn,r~1t•,I in th"" ftr"-1 in-tancf• Pqnall\' and mnnthh. rrnrn th~ rt"ve-nue 1,f llu·ir t,· .. rwrri\P ~l:.llt•~, tll d rnlP 11111 11'X•

rt>t'din}.!. CZ().000 pt•r a.nnum prr 1\1ri• 1,:.in.11 fk<•n~••t ..... ·· nr -:,Uch l,1 ~'-N am~nrnt .t.; m;H J.1• avni lahl,~. "1Orij:?'innl lirPn .. ,~P-..·· --ha.11 lun·,· fi~t n.1.II upon tlit~ rr•\ t'IIUC'· A r,n .. ud, rrmnnernl inn-- htH't" lwt•n moc1,•. 1hr 1.,(IIC1.net." will 1..- m·Hilahl<" for !ht.' rrm unf'ru1io11 n( "',-uh:,;f•• qnPn.t lic-1•m•••el;" ..... Yidt> '1 J) a111.l l"l!lf hf-" .. ,•nf

1-~ ""uJi ... t'qll,·nl lil l't1Stt•s"' :-hall nnl pJrlH' p;1t1• in tl1t> n·,c-HUP untH rhrn· ,trr' lrl.000 cuh<.1nilwr!-- for t·arh 'nri• !!innl lift'rt"'i•,··• in rhr ..:;t.tl4' in which rh~\ iirr' hn,a.d,•flclin(!. ~'l1,-.,11 ~w·l1 ,, uun,lwr uf liC-4'.Jll't• .. }qn'(• ht.·t•n i'-~Ut•cl. "'"hit·"t 1 • paT:tf!taph ( 111 her~nL ~ ·· ... ul•'!-£'C(UC'nt li,·f'n!-i1·,·" f1hc sel(."Ninn tn lu~ rn,ql4• J.v thP P. \l.C . nn thP. h~t;jc

11( priont\ pf j~..,lff' or )if"rnt.!t". OT

prfority nr appJir-.oti4,n l may lu.·c.in In hn,a,ka!i"I. ant.I .::hall be r.nl1tl,.:d lei u·· cci,·c from the tcvcnu(' u... from thrJall' 11f Urua<lta'-lin~. u:n am~1unt f'qu:ll to:

R 20.000 'i 1t1 Where R 1~ the total rM·cnui• .,f tlt, gtah• ('f\nC"C'-n1ed for 1h1• nJl••mUlr p·ar t•n.~uin1; l"•n the <lute on ;-.hirh ... ~mh~t·· l.jur-nl li,·t>n~i""f"S. 6r!-!I hrnatlca .. tr>-r1 lri tht•ati-fariir,n of 1h~ P.,r.G., aml , the number of "1,ritdnal lieen. .. ••r ..... in 1lu11 S1at1·. Ea<·l1 ~1=;uhi:f"qt1t'fll lic,-n.!t> ·• '-hall tP<'eh•f" mont11h. B!- au a,h.um:, 3~3in-.l thi!-1- rt>nnmr'rati,,n. sn um11wll nol t?xrcccling 75 per cent. o( .111 Ml' Y. Jircnrt" ft•<":, <c1';cluJing rr-nr-w.1l 1 ,,.

'-Ul'd within the mon1h CotlCt'.rnnl. A final aJiustmen l 10 h,· ma,1•· ut tit, end (1I the ~-j1lt"nrlar vear reforred to in thi4 par~groph.

J5. The tHtfmt"nl to the "-,,u}1~, •1u,·nt r;c•4'Q"'f"f•" \ fdr ( 14) .:.hdll nut t"~l t: t"•i ~20.000 r~r annum, aud, •.,.d,rn -11d1 mnuunt i-, rr-... 1r!J,,d. hi· ;;ft3lJ lu• IW.dlr tl

f11r tht> pt1rJ}OSCS .. r the,;;,, rl'j.!.Uluti,,n ... .;1, till ~•ori~in(ll lic-,•n~Pf:... au,J lh, f' \f.G. ,ltulL ,ul,w« ,., t 11 J l•N"'1f tukt> l-lle,r!-. ro inv11c• lm,ilcl1·::i~1inu. h, ;l ..,tTmHl '\ub~e4JUt'nl lic-1•n ... e?." \-\ho ~huH rrc't"'i\1· from tbe r.-·,i-nJJ,•, a':'I '1nm I hi' il,ttt'" of c·nmmt.·nr-in~ hruH.d«•aJ:.:ot.ing !if lllf' ~ati•.factfrut nI th... r ... \LG. an nmnunt ••LJUul to:

H 20.000 R I £I \\'li1•rf"- R j,:: th,· lrllJ! ffl\"t"TI1Jt • uf thr ~l,Hr t·ont-t_•rnt<l f(,r thr 1·.ah nda.r ,·par F11"1lin~ on thf"' clnl{' nn "hi• ·h tit,• "t"r nnd '"~ub!<Nll1l'Jll Jicens~., .. firsr h111a1li·L1!!-lc•cl to the ,atisfoction 11( ilw l' \I.tr anrJ R 1h,· numher nf !1rn;ul, ·1~tin1t 1ran,m..ittin,:r n)mp:mre~ parlic·ip:1trnl! in thr· rr>w•nu,• nl 1'11· ~ltJI• nn tlw datt• 1h1» ~~•1·ond "-;11h-,--11u1•111 lirpni;:,.,•' 1 fir~t hmadra"'fi;: 10 1hi· ~a1i ... ra,-.1int1 nf 1111• l' \Lt:. Thi, prln.-iplP "lt,11! I,,. •u, t·e:--:--h·rl\: npµJieil In· th,. P.,l.G. until thP nuncimurn rir c·nmp.1nje ... i ... fnrm,•d. virl,· I l J l herr .. r.

10. \\, lwr, d1t· rn•,•nu,· ,:nad.:ih,e fvr lht' p.:·nrnem of ttddi l iunal Jlroarlc-a,;.trn:,! 1r.1n-1mirtin~ tt•m1Mnw.-.. ,iJ,. ( J4) and l lfil hnr,,f reaelw, £10JIIK}. ,1,,. P ~[ r.. OlR) 1·alf on ~, u,;,;uh ... ,·'lllt'nl lirr'II• ~p,-.." h( ~• ... uhcrrp1Pnt ~pph lllf .. fu pro~



WlRELES~ WEEKLY

l1111,1dca.-.Hn!! ,ump.im until llir- r-n,f 11( tlir }f"dr or 111hrr p••uo,l, d11 1,r0Jd-1 a-t1n,c t·,,mJ•onit--- Ul.t) ath1 .. ~• ti:..· , .. " t; r•1m nnrnj? lht' amullnl.. 111 !,, ,1.Jh1llrrl, a.ml With ihrll Ultj_l\U1loU"I r1,t1:-,t"nt !lw I' \LC. m.i, tuJk,, .,Ul h 111• r .. i J I •n~ •• 1111! ~· Ila• 1·nd ol t,ud1 ,..,.n,,d 1h, .,, atha1111--r- lt•II 111· ,u.lJu .. t,•,1 lw f~1·1 n thf' wffNeut •·••ntt• ,ni1"' t 1111 ,1 ru, ,I .a11d '"" P \Ll,.

!1J \l 11, 11 tl11 ••uu,dl• t1r,I rr\~uu," rrl llh, I!! ft11f( 1,f 1111" )t'.U U .tU\ ""'t.tlr fl•l' hr~ CIO,P<io. 1hr P M.C, hall . .. ul• Jt•d tu (•JfJJ,',rarh flll lwrr11f t.ik, •• ilun ru v• urr l,r11.11l~ ,1 .. 1 in~ h, u .. fliUh"<"f1Ut·nl lu rntc ,.;· ,i,Jr r1 I 1111,

• 1, t ;m, I I n • hrr,-of :.'fl \ ....... ,, .. ,.'fUl'lll Jll'Jl'lt .an, ... m.a,

•lth IIH" c1ort1;f"OI of 11 ~ P \f ,: 1_. r1mu· .1 •• .. 11l,-.t-1JUl"'Jll l1r-rn,.•·<·" uf11M1

ti! rlout•, f 11, l~r,•of. amt ma) 1·1tm•

nlf"TH r '" l,ri,,l'l•·a-1 U :11n, 11mt l,rfnr, lhrlt> , .. 0

1111 zllo11ril Jr,rnu~" a, i,lal1l1 f,,r h,, ff•mun,·rottnn,

:!l \,. 1 01111..au, -11.1.JI fl.lfl k1J1,llr ltl

1h... rt ,,•nu,.. unJ,.,... 11 ... hro:.1,l1•o1.-11nJ? 1111'1 t, "'11li 1t1, u1111r11,al ol fhi· P \1 \.

'.!1. In ,t11\ Sw1r m "hich tl1rt, •r• uu lu11ad ..r .. tin,e .. t.1t1,10.1,, tlitt P \1 ( •• ,.hall n tJm tlw Jt'\f'nlll" lur tl11 .,1.J l,~t'-1fU•·ul JH11111otl, n ol .. \ 1 la.-.-. I r11,11I ,u1,tln.,:: v.11hir1 111, 'l-"h f1111t.rtn'",I

..!t Atl .. uh..ct11•tlnf\oJ I' 11,I h• li,11.1,I 1 U•III\;~ n•Oll',11111 • fu1 lu-r111 ,.,. I u,·il tlll lo lht! ii ti•• 1,f ~ii llal 4.f 1111 11nu 1ul111 ,, pul.1.u .. 11• J1nll h'" ,,.1.-.l11f:'il h\ n, h I mn111rnit"l'II, !1111 "h1•11 1lur 1,11 r, llt"'tH!I .,)t..JII l,r 11 ~1la1 f ,I 11\ m w Ji 1(tul• 11, ri11:hr1lJn1l" with th .t1tw11,I r1I n au1J1t11n'-

!?1 .., \'~ 1 h !urn HI •h.all ptm1

111 rlt t ti r.1r1i,in 11f 1J1r \hni"lt I 1lia1 II I 1 .. A I',,,, u1• (',111i1.1 I or tlfl.000 l,u 111h ••,•• l;l .. ., h1·r·ni1• lh-11 ii )11f1h •ith II minimum numi1111I c .qi t I ,1f !.2H(M"t0.

2~. ·• \" cl,1 .... -.J:Jltfl~, 11th1·r lh.u, ,, J;n -..1Hior--. ,..l-J,1II h:n,-, n nummum ,ilt!"tl If t1UIJ•IJI 11f llfll L,l,o.\ii:ttl

:.'6 ... n•· t.: ltl.-. .. 'l!JIJ,m..- RIii) hio.1,J1·:a-1

11n\ m11-,l1 .. tit'"'" "' 1,1~1·111-.111,: 11ro_rM11m,-. --ul11n 1 , .. 11,r ip11r11,1I ,d lhc 11 \U, .• Inn 111.11.-,, llnl rt·l 1\ 1,r ,, ••

1.lt"tll all\ pn,µr.tuuur cd tu .. _\ , fa .. ., ~1.it111n.

:!-;' \II ft'f'.ri,inat liern,'t,. 1,1 l,r 11li-1..._ju,.J,l1 1nul ln.•t1 p,1\r111Llt-... .at .im 11,, .. 1 nn1 I' ttr l1n·t1r 1•1J url,o .J, ...J,-r" 1•fl1 ( lti 1111• ( 11t,11uu11w,.1hh.

!!R. \n .. A .. , lb, 1111n1H1t1\ 1-. di!! ihl, r,,, • · n· ,,1,...... I Ct nn ... 1Jh ..

11 uo, Ill I 1.:,111 ••~n dilTf-1111\ h,1in 11!0 1

1,f !lot .. \ •• I 111.._,. f 11 tllf"t••

29 Thnt rlu• 111 nlJrd t~J•frunrm.1J l1<t m r J,t.· cluu·,011inu1·,l. Th.If ill 01·" hrrm '-" 1.1lu• io 11IJt J c dlr,I 1t11 rs, p,·rl .,l:1wninrnrnf h, rn, Tl1.11 th, 1111,11 rmmh•·r i uni 01 ian, 11111, hall

,l

fl •I ,·\« •·ttl tlw lu1l11wlnJZ.' :\r~ i...,ud1 \\ ,_ 9K), \il"lotia,. !llO . ...... ,uh ~II ....

1tal1-11. lllfl. \\-.1,-rn \u.;;,thlh!L IOtl~ (,~II,• 11-laml I 'lO; ra-st1U1lll1.I, Mt 111.il ~udt 111-,-nt•·.., 1-H"" ft,,. 11! l hatµr, ln•I "h~JI J,. j .... tJrd Hll.Jh IH lhi J•. \1 f • .• on 1lu 11,1,mmt·n1l1111 a ,tf tf11 \\urft" ..... Lti-111u.t,· 11f \u .. 1ra.l1• u1 J• 11 'I.II•·.

I 11\Il'F'\ ~\TIO!'( [{, nl11ti11n. 1110\ .[ I,, \Ir Ru 111l1,h.

,rn,I 011 orp111a1111; 1111r111ln11 f.ll,. ul m llr•I h, ,1,-- , '• "" fl.,. rn 4rn,I fah,,

Thi.. 11111(rrrni 1,111111 tht 1•rHl I ,plj• .. r f••m11o1·1 Jl14•11 t11 11,. (',1r11t (II fllll~ini=: gocul 1h, •• 10111 t"'\fwt , 11l ,..-n\t•n111i: f11n-..1tu lr,l ..... ,l("d lt'I t,, +IJ'f'fl ... ,15

'I l 1• mt•ml1n· .... 111 1h1 ... 1 inf• r t'lrr" In 1l1\l,lt1.1Ht ,,ntl 11tl1 c1J\ch, h, rl'h\ w:.i,r li1n1 c·l-111rn'- and nr,•mm1 nd tilt' uth, r 1t,1,l1 , ... ,,I th; r 0J11m••n~n1ht to tiu l11'r~l'-4

l Iii!>- ( nllfl'!r~rn I rt" d1-t'- lfiJt J1J•111-Jl1111 r,. 1h, nt:~ rr11.ula11u11 .. \\Ill rnuul 111.- ;allt<tall••II c1f l!Lf" J1r, ~, nl ,,·al, I -, 1-u, 1u:1lh t 11IHJ1l1 tf'tl ll\ ntJnuf..1tlUrr1 ... ll , .. 1h, r, t,,rr -111:1<-...11 ,l 1l1 n u ,1. fin 111- llil .. hi ,,! l, w1,rn..-.• Jtl •11 I, 1q1pr.-,,.1 (111 • l1ut1~ 11t111I, 11 •m J f11ll "" •

11""• 1 lui111 ... m.ulc Ii~ UII\ (Orup•m \dud1 h.u.• 11111ft:1 1lia11 '"'ii.I ... t• \UII 11u1 I

1•11 .tlllll 1,,, I llllll'•f'l~Uh·J f,11 II 'ii •Ut

nf ultr rioJ ,111h 1h .~ M·h 11\1 r tlu .. ,0 ,-4111 111 nw,n, ,I In d1r II ul111111r1 .and t1oth h f ,,. J11U I ~ p, .. ,,.n lo h~\r '"'' n 111 Iii, I 1111uno11~ ,..,11th un-.1hl, •I , n 1hr "'1-11,, an,! 1011-.ia:111 I f11 \11 1rnl1;;m 110,I, 1.._ , 11 tlu flrh \(1'11, l't.?I

n ,II '"' .. ud, ...... ,. hlll I 11,1\j ,~ i ti

11 tu lh •lit true h ,I trn•I iw 11, ,I 11\ ,11 fl,HI 11\1~ ~11h tU,UHln! ) rl"'1t1ilJt11 n 11-ul l'•:.!.l. rr11J ,,~ ... , d •1111lt-r "IA• 11 n•~g IJtl1utt ft} 0 '''1:tlt r.J,11 I in•j't'I 1111 8•

rfff"111\t" f ,,mp,•n,..1111ut1 lo J hmitf>d In 1hr

11 ln,,I IJ1h,,nr 1 .... 1 1 nh of r,,n,rt11nc ca;ud1 .;tta inh1 "l"'" "''" .. ,~ of 11rr...., 1•11n1lrn;:- \IIM\t· Ir n,rth r,rniti•, , t )IM}. l~kl . .. r t,t--).(2~1ifl mtllr- r,·-t r• 1n ·h, hut nut in1 Jm,u.-.

Ptli,. ft-r .1lt,·1.u1011 i-.h 111 '"" ti~ J,uJ"' lit t, n•lor-r. ;-,111rl 1111• IJJ-1- a f .. u h c I\"' 1•rni--,tllon -.k.111 h" li~1•J J,,. 1lw h n,J,-r .,f llir l,111o1 •t r,~rn,mub1r'! h 1ul1•r1 r .\ti c1Ul.Ul"i I..-» 111 111.a1J1 "1tlw, J 11<1.)f• fl utu f.!1tlt 11al 11J I hr- 111 ~ re l,\U,dll•tn.,.

Tl1.1t ii • 111111u tll:!111111 fun,] lit- J•tt) , ul("'rl ti, 11w1• :.a• "' ,fu!t-r,.; lu t•n1.,.. ft·r• 11, \~ fH't u11num. l,u1 llu futr

llUlflJ:.: ,e .. ,l111l11n!li l1111riuµ. un tot111...-11

'4111hh .1m1I t11Crr .1...-cl 1l1•alrr•: l11 1111 r (1.,.. r1·11t.1in 111 "'"1 11 n , r rml) ui•III •11th llmr a111 lh'° IH'(l'•"'<lt\ r11n\lM""ll'!-J4

I i1111 funil 11~• r, ~• h,·11 • 111i1• w m,•, t ,11 11111 mH•fl , ln,m



4

\ .\EW RADIO 130D\ FOR \fO~,IA\

On Thur-,ln,·. Mun-h 2,1h. 191-1. a uumlH·r of ,tcntlemf"n "ho a.rt• kt•enl" i111,.n.,-t,·tl m tht~ ""l'irnr~ n[ radio. met at th" ,~sid,·m·e of \Ir. \. [) lla(P. 100 \Ju .. l11J1 ~trt't'l. '\Jo .. man. 141 ,H .. ,~ui.-, tht> J•O'-!Olhi1it1p,.. ,,{ .. ,u1Jli11.hinµ. Slllllt' r,,m1 of 311;.; .. ,.ruui11n fur n-t•:lffh nn,I 1·xpt·d 11wnt in \\ nefc ..... 1,•lo~dph~ .tnd 1..-1,~. r1h11ny

\Ian, int,•rt•--1111g pu1nts Wl'Je dt•alt \\.th.. JJ11I 1t "J' t'H'Tltu_dh cl1•ri1l1·d slur d1P. l101h lw ,.all1·d tl11: \l11--man Rudio R,• .. tur.d1 a.u,I E,1wrrm.-111a1 La, horJl1)fif' ... ,. l\·lu.:r;-\n 11 ... Jnt1r.ipatrd u ~r,•at 1h:al nf \t'f\ inlt•ti ~I 1111-: and ri,·nlifk \\c,tl,. \\i.ll he l 1m•·il 1.1LJI.

( un~nlt·rahlr .uhuuL.l!!•' ,.. 1 l,1imrd IJI 1h:u 1}11• l.ahort.1lor11..,;; \\ II ht! keJ•l fr , .. fwm t1I l'o1malit1e,. :ind 1lu1 the num1,n uf 111, ml11•r.;; ,~ill 111• lunitt-11.

lll.lT[l\11\(;\(; I [IE I rnt ll·'\I) Ill· Y01 n I \RI II

11'1 ~. -.ul1111 t ... lhc- ful111" ir1 c. , .. hi,lt ,,ill lw of i1111 •rr-.1 J11 «"'-P••rin11111,·r,:

In t,rd~ 1 11, .. 11, .. 1\ ,11ur .... ,•'I u!'> ,,. th,

WIRELESS _WEEKLY Fri1h1~. April 2:i1l1. 1'1:!1. -------- - --'----'-- ----t>ffic:t.tt'} of \·11ur 1•art l1. fnllow thi..: pri,. lt-"<·1linfZ:: \Vi1h the ur1h leail ili,;jc,,un,•1 h·d J?l'l thl• -..d 11~eiUa1lu~ -.Lrun~l) KPf"pln~ tht- phune'4 c,n litf' liPnd. ruh ~l ,\,·I finc:rr rip along rht' hart ,~arth ,,ur. A e:ra1 1n$! no1~,· ¥.ill ht'.' lwar,I.

tup wil l ••.ouru1 Ii.kt• u dirk '\11•,, , if. tl':'I i~ l1F-uall) th~ 1:n~t'. thf" .. d j ... nl·.tr Llw \\i111iM,·. hut tht- ,•anh ,.,·irt S,!111~ ... 111 ,•:.1rtl1 -.umt> 1li-.1am·r from t h1 hit1do". ,u·I II"- (1dluv. .. : Ju ... 1 11uhiil, I lu- \\ i ndo,, .. 1-•ll'lJl nm ,1 li;.1 ... 111 ir I h..-!!111uml aUtl JJ•1u1 u lHh'""d .,f wat,•r mtu ii H,·ad, in tlin,ttj.!h tlu• "111tl1rn ..iml i?rl 1hr ·phlllll' .. , whid1 plan .. \111

,out ltl'<UI. ..,\)-.H t.akt" tlw ,·:inh \\iT1 1n )uur lw:mL \\ lLh a \\Cl finl,!c-r. tap fir-.t tlw hare rarlh , ... irr ,1ncl th1·r1 llu• .. urfan .. ur 11J,. pm,) ut ,\ ,tt.--r. llw· "n• lf'T m.l)' hf' ri•gar,kd U'- ,1 JJt't r,•rt rnr1 h.

11,l 11 th,· -.ound in !lit' 'i,h11m·-. i .. t1lru11F-t1r \\)11·11 lnp1iir1~ th,- wiJlt'r tlurn It h "'h1·11 t,1ppin.e tllt' t•,ulh \\irr thrn n,u ru,H r-1111cluil1• 111.11 tllf t•urth i ... cap al,lr· o( impP1\1 u1,·11t. ll j..; rt""alh -ur, p1i;i!11i 111 lat~tr th,• 11,utl111 ..... 11f 11t,• t"lic ~ i:l1t.2.inl'il 11,. thi.., JITo("t•durt• 1 h1· 1 x11l,n1.1tinn 11f it~ prC:!L·11r1• cu ,d 1:- I

pit·-.11111,· "'h111h t'd'•adtv." II 1... of

1 ou "'t' nnt .... 11 ltn1d 111u ... ld1 tl1, r1111m

'1" i1 i.., in.:ii,lr. ltut h j.., ctttiti>- awliLl~ In ordn to dill,•rentiulli ,li.,unn,~

~tat ir. db1'tHrn~,-1 th1-• at·rnl wit,· an,I. \\ilh lhP ~l (1cril iatin~. 1ourh tli UH:u.l lt'.'11.·plurnt" lcacJ .. wlwn• lht·~ t·nt,·r th~ .. pho1ws. Tht" 1-11a1ir noj ... p.i ,-..ill l1r" tPpto• rluc,•d fd' nth. Lut hi1hlully ,11 th, '11hnnr"' Y<1H run dll'n ltr• a"--.urcd 1hat 3111u ,tn• mil deulinp: , .. ial1 1m} t•tlH'r ad \'t•11tili11u'- noi'-"'-'

\ir I • I!.. A11u•.,;, 1 i.;,.\, I \Hlli a fnl fnw:- '"Tlil\·inl! lwr-n t·nJro~• d L lrn'li;.; llllf ,, numh,·r (Ir rnn~tr ul it ·rn t'1 11!

h. I wn-.. 11at11ri.1ll,· vt.·l}· rnudt di~cr ,,,t ,\hrn tlw fih,~r l ·l111\..c.i on th• llnWf r tl!lif nr 01\" IH!u~mi1ti11~ .. N JW,lit o thu... 11n•i.·t:·nt in~ nw fr11111 11,;a,m I t

111 .. m,I It"rlifte«l ,\C t.SOO \nll I

"'\h tl1011~ht-.. tllntt•,1 lo m\ lKl '"it R. hatlPr). H'-t\cl in <'n11nrrtirm "l'h m ri--1·,1i,iHg sd. Conrwt'lmg 1hi!, t,1 11J pm,t'r tnmm:wl" r,f nn• Ir n .. m11 '- r I. "'"' ah 1,, tn r~1rr1, 11111 ru\ \H" •tall l\ du- mu-.lt· lwang rt"'pnttf"ll ,piill' •tr I\ 1

and tl,·a,. an,1 amph lillin~ 11" 1 II whid1 ,,~1-- o.1hnul .. j,; mil1·r. dJ,-ou t

Burgin Electric Co. for Service and Quality

-

Cash Bargains for Experimenters

\\ fl. 11. \ah,·,. I.I ,oh. 2.'i .,mp. 3, 6; M• ll1ml •·(hJ."' ~11 -: \'l,·em~hcs. I.I wit . .:!5 arnp .. 37 ti: \Jullarti ~ocket•, 2 : 11)11 .. r 299 • .,,-k,-ts. 1 -; p,.,~ntiumcter,. 12 6 un,I 11 6, Radin 1-'1cqu,•nq ·1 ran lnrmt·r~, 200-600 m •ll"t"• •• '\O ., 20ll-a000. ~;; -: t\uJ.lv Fn.4ttt1c.ttc.y Tran!'i{urme.r!-1 30 .; C. H Baller) ...,,,it, her-., -116; Tclt"phon..- Plu~!-. 4 •: Vah1• Pin ln.:;ulator3, 1, 6.

1 Ol l) SPF.A1'.£R~. 65 -.

BURGIN ELECTRIC WIRELESS E'-Gl,EERS Al'.D

COMPANY SUPPLIERS

Sh°'~ Room, .and Sn lr~ U{'"partmenl. l~I Floor. L..,Haghon U<rn!i-t!...

391 GEORGE ST., SYDNEY

-

---

-~111111lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllill,llllllllllllllllllllllllllllll1111111,llillllllllllllllllllllllllllill1lllllllllltnlllllllllllllllllllllllllh,



WIRELESS WEEKLY

\X'l {E.°" Cl LLS AND B \ TTIRIES ARL IN QUESTI01'

WHETHER for htgl I or l01, wuion

currrnt EVER REAOY Cd!, u,J

Bacccrres gt'<' f h~ s~rv1ce.

·. f~. ' . ' . ~ rt .. ,

fo:- u w11h •I l""· , rnpcran, c ul,es " ti- n 11- r ng i olt.11.t•

U.V t1J•)

OSRA\I C 2.99 DE

B. '>, rte

D \ .I. 13 I'.H.

12 6 cac-h I:\ ER-READY W!Rl-11:SS

31 ,'OIi anJ 42 volr

ll/(1 lo 1'2/6 ,·mlt

EVER-READY Cd!, :u,J B.mmes obt.1m.1ble trom all 1, ird= dcpoe:,

Jf an~ (j ff, :ultV m OOU nmg wppl ua.

British Ever lhl 1'111

Pl()n«n; 111 the ""d"" ficd. l:\ LR Rf \O'I Batt<ncs hwe Ix, n con.s1:1ntl to J.1\ the) r~lu,c perkcuon.

I 11 .. ""rd I, rt , •Ii~

II rrcwed unttl

New Radio 'A' Battery I 1 3

Ready Co. Limited '- l ll 1:. L I. :-, ) ll \ L, I

I

' ----------------------------------=· 511 1\IUlll llldlll llHllldllllllllllll"ll111111IIIUIIIIIIII 111,11 1111111111111111111111111111,1111111m11m11111111111111111111111111111111,111 lll'lflq, I'



6 WIRELESS WEEKLY l•' rid ay, rl.pr il :!5th. l!t:! l.

Six Electrode Modulating Tubes

T Iit" 1111!,n-\ln~ ar1i1~l1• n•la tP'- In an im 1•nlinn whirh 1hr ,1orh,·1 p1.,, j ... i<,n• •Iii J1r<1ll'l·lt·,I I,) appl11•n1lon [,,r pal• Ill . '\11. 13937. <•II Au1w-1 2tl1h. 19~~H ll<l lat11 r cummun irrHt:d to .\tr. Gro. 1\ pp1·rley . • \ mal1rnma1ed W irelt·--. ~Hlncv. in additwn to t he· \\e-.tnr, F:lc~1•~ iric Co .. Chiragn rl l l.1,1.5~\.

lloth fir111"i a1c- unintt.:n .. ,1 ... J. :mt! t hr 1n,,·n1i11n 1~ tu ht oliJ111.lont•1I 11ntried

A U'4·ful l'UfPIPJ"P i--. 1lwrr•rnr,· .. ,·r\1••l h) nrilif) inf!. 1h,· ~rnr-rol puhlit-. throuµh "Wirelr•- \\ ,.,.J..h, . »f 1h1· ln,,,...nt,,r·, 1J.•d-.i11n 111 tlti'"' rt>-.pUtl, pri111 1u thr e'Apira1ion u( tt·1np1iror1 prot,,,., 1iun. Ht·atl•·ri-. will ltt• irl t£1rt" .. tc<l.

T iu· m,,,n111r 1·on11•mpl1.1tr•d t·o11 • c.tr11ffin~ nntl t·mp lm ill~ .1 ,ah.t' ha, .. inµ ill l~ast si\ clrrtrndt•i. 1n onltc 10 attnin 1m1r L' c'{1rrtph•tc modulation nl a t1iJ!,h-frec1u••nr·} nnritr l\-U\.t!, lt·--~1.·11

,fi .. lurtiun, and inr n·aN·· tht- ran~,· nt u tdt'1ophnny t rnn--mllter I,, narruwiu;?; the '\\a,,·-han• I uf !--ignal .. ,•rnit1t·rl liwt,·· rnrm

" urlt d \Ohc• mny t·1rn ... i--t 1d 8 gW~'-' nr -..ili,·a 1•1ndu1Jt> t·ontainin, • l t lhrt•t• anuth·... I wn ~rid-.. ,rnd a fii .. uu, 111 , ur • 2 l t \\o an11tll•1;,,, thrc,· µ,rid~ und a fll.tmt•nl. or {31 1,,.11 llJH,Jt.·"'· l 'o\-O :.?.rit!..:J.lJlt.l l\,.o filu.mcnl ii., ;;,hapnl. ~tan•d· urnl 0111·luin·1 I u,:,, urt> tht• l'ltTltodc-. nf tnhe!" in s.u·nerul Ui:lf' a, 1 ht prl:"!"1~111 1 uue. rlw p1, ... i1ion oJ ~rirl, rdo1in• lO fi b m,·nl and anod(" f' iement~~ howc,,·r. i._ a mn~t impo11anl nrnJ ,·--~t.•n1;al Ct .Hun· uf 1h1 JmTrntion . .1-.. ,\·Lil lw :-,·t·n h~ rrt..-rring' " th, Ur 1·(1mtHIII) ing tliag1a.n1 I 11f I\ p,· 1 J 1 ,1111I c•in.:u JI l \\lwrl'in .-\ r·tyua'J.., hi~h.rrrqu1•J1t'\ dN'lf••· ffli.tJ?· nt>l i1 t,·a1rwrl \va,,·-~,•nt•r;, tur.

R tcpiu.11' nnia l imlut'IOfit't.' , .1,~rinl t'ln'U il ,.

t pqu11J ... ..in11Jp iuductan.-f' . I an, I 2 equa I~ 1-1,i ii~ unu<le"-, ~ ,•qtu:1.I-. rt· 111r ... , onnrlt"'. -t and fi cq1mls ~rid~. h equnl!, fi lnmr-nf ( I l o h vilh~I. I) equals ~ourn· of fi lamPnl run ,•rl l. E awl F ,~qu.Jltt =:-t.,.c41n<lar} an d pri-

n1tH) microph•,nc-trnn- funuf' r witi• I iup; ...

(: t>qu.eJ-. mi1•ro)'hmw Latt,·ry. lI 1•q1rnl"- rn i11·orhonf'. l'illP•"fll in n

atl y rr pr1..•~t•ntf"d . T h,· rarr ia.l iE eon1inuuut-h M:r•i1ed 01

Pnf'r~i~etl h )' .I\, u.n<l norm al!" radiu1t~::a11 undumvl'J '¼·ave of ~u~tninP<l emplilu<lt' ur unmot.lulatrrl d1aracte ri~lkL'nd..-r ~uch conditions. o f ('our .. •"· Llw \BIVC' has un,•aryin~ cc.._i .. tnnn·. uml (li..,~iptttcs. a rom!tanl p muunl ri f dtt·• tric-al t• m-rJt) . oh"url1,•<l r,l r. lrtin'l Il. a-.. Jwa1.

:J3y Edward Pa/lack nu11n11111u11(!] 1.11u,,..,.,.,,.,.

It 1~ nh ... iou:i LLn l s.int.:c I he ?,ero point UI 110•\'hlta,g:P mit..lJ1e lappiug ,,r C i.:i tlirN•th eoruu•c1c,I In a filamf'nt liru!J. rlu" ni-,•i llat ion..-. v.hich tra\'f'f)il-f' 1hiP ,·,iii ond opply liigh lrcqu,.nc, al1ernu1 lnf[ poh'nl ial.;, 1-0 lht" unodes ure a,·11iu ll) rnmple1ely rectified hy 1hP ·vahe• .... mc-e I nntl a nrP po~it.h r- wltt·n

2 i!-- rH'f!'.8 Ll'-'f', und , ict! ,·t!rsa. A Kim liar sch~me of ronnet'I 1011 on

the i:r irl ~jde t:.nahlcs both haH l\aH·-.

oI microp honP 1·urn.·1H h-i he 111th'-r-tl m ••~nallini;. 11,e wimJinJ! F: hrini: brid g('t.l ncro~~ ~ids 4 and 5, au<l jnin ed at its rent re lllrn to the utlu r lil• menl le!?,

c1-

~ llllllllllllllllllllllllllllllll\lllllllllllllllllllll\llllllllllllllllllllllflllllllllllllllllJlllllllllllllllllllllllllllllllllllllllllllllllltg

~i __ Our Radio Department ~-=_=

ts now in full swing and we can supply you wtth

~-=====-===- :g<~: rn;,~ :::• :':: :::~~ •~Q~;: :=_~======§-MENT we are m a position to quote you " GOOD

PRICES." Send along your Radio Problems, we

i •" Mw.y, ::,.y:~Ro::::;:Uon i Tl1e Home Electric

l06a Phon" B 5565.

Kiuot:-

Street, Svc1ncy

~1111111111111111111111111111111111111111111111111111111111111111111111111111111u1111111111111111111111111111111111111111111111111111111111111111rr



~ 1,I.,.,. ,\pril :!:it lo, l'I:!~ WIRELESS WEEKLY

Adding Radio Frequency lo your present Set

'"' ""1 ,, , .. !Ult" I Th I 1•fi1, ti . nil 11t,1, l1rrl '" ti, I nnu "'

,,., 11111! ,. 1r11•1tmplrr ,,r tlo ,,.. rt\ 111#

1t1 J t'lfltl 1lr n,. • ,11• tu,,, • ,• n ar, t'l•n• '" ru~r u11 ,~ lil)U 1ft lr1 n ,fi11

A'~ ~Lods ,.

~ ~. ~~~ / -.:.~~!~ ..

othv

" ... ,-e, '

i ,o (:J.1~~• .,,~,,.. (.oaf, 2 P•.lw J Soet. ..

,:nu11 i If ,.,,,l.,11.11111 h nu) be 1164"1 1 \\ tl1 11 rutl ut J-,.,1-.

nx I I, rt t a (i,i.1 or t.HIJ n lu- ir ( Ii,

I, 11 ,. F 1tw, \IJ1 111,r, 11 11 11

l I

1.,. f,,~w/U

T -I c,, I

J Jl11111 ~ an,I \In I '\,., ... ,,url \\ alrt 1( (_1 Z< fl \ , I •n t ""' 11:(, 1TUJ, 111

11 • .111 I O I

\.th-e

I n,I: I< I, 41 I. ,, "

\\Ofllfll ll'\f\\f\FH f, Jilt, I flf:t Olilt

.!.""'41

II.I

H,1"\ \ I hum•• H M! TI1n, M"r d11 111~• f, !111¥1 n l""I of I lintl!l I l,1 ~,-,J cl1ir n 111, l nil \pr,I·

,, 'WI ..., Ill I \\ ak•• 21 :11, !!lnl f r1J II I ....... ' r hom '· :2'\ \ I,, r fl< llW. Ill!. 3fl\l

~U I . 1111 lJI. I'\\ 3'\f f)m-,-,, .. 1,t 1d I \E --1-< h. '1,hon,•J.

II \I !'phone). \rllo l ,I, d t'\ \

~! IJ\I, \p1 d I hi,. 1.L5 u n,. ~c 11 r, .• 1< 1n1 ~1,1 , ~1,.1, H o i;: r11 , 11,k



R WIRELESS WEEKLY

Adding 1t,adio Frequency to your present Set Conllnu<d f,om pag< 1

~ ? ~ t--- -------~ ~-----<

Friday, April :!:'ith, l't:!-!

A; I l~:h. 11.30 I'·"'·· 2n:. n- 2<' D\I. \\ II tall I 'LIO v.m .. IJ11t IJJn, H•·lllOITII\\ C\'ening.

A11ril 13th. 12.35 a.ni. 2< \I 11~ ll fl\l. ;'\ r I O.t,:..

\lr. Thoma,;;· aenal i!-> .:1 .. iu1Z,l,· '\\:ir," f'op.,wr wrld1 15h. I 111,:?; ;iml 20h 1uih

FHO\f QI ~:E..\'-L\t\U Hub\. J. Brc1wne t Ton, ... ,n,z.. V I

I ~ o:fto. ® j7 ul 1'. ® ,.,,., ® I.I L,.•• U •·-"----~3~~L ?· c1~• ___________ .J,

"'f'n1L, bj... l i;i;ing oru- 1l,·l~("t••r uni! l\'o11

aU<lin. hi:-o 11111fit ha..: bruu~ht Ill t ,.

follu" in~· '\e" Sumh \\ ulrs: 2GR. 21,IJ. 111 \I

2Y \, 2~0. 2YO. '!.71, 2l \\, tJ\I, ~I fl,

Ii' r u-Plaer t'u/ l' I tr ~r,"/"1'7 f:lrrnc11I- 17 ran,,,,-

2CR. 2H \, 2FA. 2< \I. 21 11\1 , .. \\ ir..l,•,- " "l'l'lie,, Wa~~•·

\ J<•toria · JR\I ~J l .1l!!), ,lTI\ 3811. a],,, :lA I{?

\,.,, /,•alanu· !) .\, I\\ 2\1 2 \1,1. ~AC -1.\ A.

\mrrwan: hAC.K, (,( (;\\ r,\Jll'. 9\1(' 1~1

i ~-l.~~'.J rx:

~ { " 31~

\ "-J,__../

I

/

2CJ}\1 l ,a- !,,·en ()-.,\ -111,·, ,\pr I :; ,o ntt~mJ't wa!:t mo~!, .. 111 lof! hrn L,• foH· th~t tJn1P. n11 '1t1nfi.1v. '\111

l:!1h. al ahout l t.30 p.111., h1 ,-.a ... li,r ll 1111 ' Jh"t"f'l1 anJ t.•11mir1~ in u•n strun~. .I J< k na\ l'l.1, W ,V· "'l1l'J.k.ill',!, l) J d T(>Dl uk. ,·11 drnl :!11\1. :\rml,lal,·-. "a'" c• 11 1hroi1~h "di,

FOR YOUR

Wireless Receiving Sets Spare Parts and Equipment

Go to SW AJNS SWAIN & CO. LTD. 119a and 123 Pitt Street

Call in and listen to Farmers' and Broadcasters' daily Programme

1-~xr,•lh.•ut \\ ir ]p-.s lltolt lt- 1-.:t ing ,... hem~ ,-on durte1i f]a.ily l,,.. ~l••s.;rtt. J·":irn~t-r"'i · l .... td .. 11111\ Bru:u.1

1·:1-ih'T!-< •• LIil

\Vith tlH• 1emoval of 1h 11h,1el"li,11111l1le r t,!nb •io11s "hid, 1..-lil 1111 tJ11• .. ;11,, or ren·ivin:,? -.t•t:-1 , f•Y1·1 .. ,.·111w iu .\u~trnli.3 '\\--ill lw ,·la111onrlng for a set :it- i,.:.:11111 :1-.c. th1--·:; 1 UH .,IToTd to 1n111·l1:1:--P. \\lwth~r t h,\ :1 t'r:n-it:il 1.o;l't, rw;.t111.: ouly :t ft•w 11111111b. 11r

•• s,-t rk l.UXL'. , u ... tiu;: mn th111~ frorn £7."i lo t~.in, J10 nw· i-.: lilt!'!\' to lie, wltiu,ut mu•.

'1'111• 111ily 1•r1,lilP II t11 ..,rih·t• 1 in:.:. •1~ 111 th- tyi,e or -:t'f it 1!-- intemlNl f11 p11r1•l1:l!'ii• tt1d "'har j~ w lwr1· wo 1lPsin tt, hr of n9-iii:ttn111•e to you.

\\"1• h,1,·~ nu of the ti11~!-lt ~r1l'rt mus of Hc1 <' , lu)! ~l'tK iu }-,~·•luC', .. , 11w1111t'adurcd hy I Ill' \U1.1l~ r 1u:1tt•1l Wir• I,,._._ ('o .• f,r+I .• tla1· (Tuitt!d lh:.trl1111ti 1~ ( 'tJ., I.I .J., :111,I l,, Uri~)s,, •1 ,uq1;111h\Jot,

,\l,o '·" h:l\"t' ,,,11) of 111 • lH.!q, wtrf'lr"'s l."':Sp~rt m .. \ ustr.ili:J. \\ 110 ,nll lllllk•· ,~ou a 1.1•! ro or, , mou..,tr,tt•· IJ, e siJt~ 1111 Ii 1 1 11111 g-1~, ... \11u t I •lu t11•1·1•"-'-i:1T:" iuform:1tion Tn 1,p1•nt'I' or tu hnil, >our 0\\11 ..,,,t ,\"itli ll1t p:1r1 s \\lii,·h w1 .. stork ..

\\01• lt11h•r;1l-o· ! 11 1r1,lt11•1 :di Jiveng11-: 11r J•t'rllllt

:,ud 111 uwk · !hr-- 11 l'l•s,:tr_v ,r-rau:;rt>m,~ut~ til t' •• l e vou tu lisl+•n ih to 111 th(' wire.lJ..~,~ 71rogr. 111U1P~ f1·11111 :rn l.liorisril lo!J~ I :\Otll"l'.C·~.

CATALOGUES ON A!"PLICATION

The Wirelen Supply Centre-of Sydney -is Swains, ll9a and 123 Pitt Street

II

II



F 11 \pril :!:.1)1. 1'1:!l WIRELESS WEEKLY 9

T

,,. .... ll•ltffllh-,... , ..

ah ma.111 ~ \ lt:t.i!~ r .. t J1 1,-b, cf f I, • •lr.u fl I ... UlfHr•I h1

1 Ji l,ut 1,111 • t• po ml -5. 1)1i- tult('. 1h r1

" n lu fl\11) .rn,f h,•

+

h. 1\1 a • t•r)inll' 1,c•trtT 1li•l!ll' lrnn dt\U r tln11111 thr,p,111,,1: nr n 11lu1a tio11 1h1 C':Jtrlf"f II~ m.u,om 1,, 1J11 "'J'• f ,rm of 11..., tu1,r111hc•r1r , ,1rrf nt

Thr frr fl,rlh l'r tht l Ill Ill Oo. ,nll fri,m • n ,J, 2 1 1 (ililmr,u (, 1 afT I 1!

1, I •n1u • t•f r•11ffltio1I • fl hurl KTHI•.

f,rul.;

~ltrJ1,;th of pl.ate c. mrnu m, tr•*f !I l,c ltu"TU fll•• iot·nt ,arn,I

\nod, I

\110,lt! ..=_ ld11r 111 (,n,I ~J

,_.firrr 1• th.At J)ill· n1~ hmu Jht•1J1-~ I 111,,I 3 i 1nnu1 n,·,, J onf) In ..... rtJe:1 , .u 1 a1tu11 nn I ttn I 'i, rt- 1••c lnf'l) J}i1.9 r,pla1111 ta l ) :? ho 1 wu,. dir 11,, II\( It! A c•f t'11 1u t I , 1 l.

\, .. umm~ 1h.H thr cu11 r 1'd\C lrf'" •~Urh , J"- l,000,000 fh"f ttnn1L arul d,e •,, u,:, frr, fUt·ttt·, .1f 1t, ",1\r" m11-

Jul.1t•n,t , •. .11,11 1 ... 1.UOtJ q, 't- fur ,11

• imtlat ,i,rlo-.l u 1- ,ompar~t11rt-h t·a~y M i,m,w,• ) ,, tut".tf - 11( 1f i fnll wms: 161111, 1lio11 111 1U• h a rnl,, 1br fo:111 IJ.lr-n

tr 111, 11 r11I tlurio~ 111111l11Ji111,•u ,_

11u..slh 11luncd hy &) .1 ufo, \,,r that llir , ,h 1 '-" n an ariud, uh, r1,iu, Jo t1mt'~ f11r r,, n r, \t:'flla.J J 1I,. ,,l r, nw,I on 1 r 11

\• rn t l111nr,I 1n II p1 ,, 11 n.1.I pr ifi, •Ill n , •h.6 uf 1h1• IY1N! 111111\ lw mplm..,.J t 1.ffrc'1n~) 1h .. 1rl1 tl1r 1

rt Cl iu It , J UI ill 11 n, r h, • lr,m 1111111 r ., n llllt II ,..ml ,l~hilt' 1/ r • 111,r ,.r u ,fu1 lt::1. 11.UUllltn,.c "' lt"IU

1.i, J m rh" 111011 r,. 8ru1 .. I Jl'4lrn1 \ 1'1111"11 1•1:?.J.

f'rll "'"r frn·rul, <1l111111

· \\ in•lt·~,. \\ i-Pl-.h ••

-~~::~;:N:•::-····---:::::~:!1i~!,~~::~~---1_ \II BIU ll'-11 \11'..JJ Cl 1'1111\1 .._

27s. Gd. I MARLE AUDIO !

25,. MASTER RADIO

30s.

RHEOSTATS from 5,. 6J

VAi VE\, ALL MAKES Cunningham's 3~s.

BIIANOES PHONES 40s.

Etc., Etc. CALl ANO I NSP[CT

\ t:1 Vok.4.!.,I Co,,,,ectlm,~. rhrrt'/orr 1001 Pruot ~4;•1 .-...·f'r, ... ,tftw and (/1 qi ftle//QU l"om

(l(II nu llf. \lbl:T ,t\1,I I. II \\II l'IIII\I

4.01~1 " '""' 25 lhflll 18 6

386 GEORGE STREET Br1:uid1 1n oll '• 1

-..-, .. 1nNfu11 ......... ., ...... ,, .... _,,,,,.,, ................... ,,,,. .,, _,..,,,,.1u,,,,,,,,,.,,,.,,,, ......... ,,_u,,,.,.,1.,u,u1nu""''''""" ......... , .. uu,,,u1uu1u,u,,u..,,u, .. 1,1,Q



10

). ~lio\\rn~ L. \. \riJ,•;:,, IO h, .. 1·0,;

2. I\ \Jt''Y. of tltt· 1.'oltuJ!•' ,, ith th,... rt on 1h1· \t>rnndah: J. TL1uiu~ i11 11n tlit• I ,llh, lmt'r--t· Uupl,·l. ~t't Our In~ rin1• \'\r1HIH•r tfw \\.lrt· f,·lll''° \\R-i

11-.,•.I a., .... m u,•ri1f: ~ Shu\\-- l\\n nl 1h,·

u11pr11mpt11 n, .. 1um,·- "- •1111 at o jau

1•\,·tt111~ Jt "h1d1 th,,. mu-..h \\U- "lll•·

pl1r•1l h, rudr,,: ,:j, H,·turrnn~ homt' at H·r 5 h,1ur-- arHJ 11u fi .. h: 6 .• \t t>hh ti1l1•.

WIRELESS WEEKLY

ILE'S WONDERFUL WIRELESS 1

C.c1JJ1plt•t1• ~lo(•k:-i of all p:art:-. f,1r \ .. umt1•11r C:t>u!!olr1w1 inn. Bellig Jjn•i·L iwµortrr ... 'H' Hrr• t·uuti111.wll,~ ud,lin#! runny ne,\ nntJ inh.:reb.ltu~ liue~ to our.:,lo<·L.~. '1nuLer.:o of Broadt•:.aR;lf"'f" (S)'dm.1 )) l.1tl. und ag.-111,-. [or l'armt f .. Hn1atl,·n·-tinµ: Sf'n'l,~e. W\~ pa~ i·nrriage tlirouclJuul ,\.S.\V. $,·nt.l for C.<JuJpJt~te Prfrr T isl

w . HARRY WILES

60-62 GOULBURN ST., SYDNEY f)r1,. •lvot It-OU.I l'ilt .._lrl', I



1 , \pr1l :!:ith, 111:! I WIRELESS WEEKLY

Honeycomb Coils

P.J1atmJ th,. fonnrr I kn••"" f1,lk. ... IM" 1 ,111 .. ,. l hu,- h6ti h , 1lta" fi~ J

\\ 1th th!"! fonniar ouYi dt'\'t,rith·J "ul1 t 1i l 1,_.r JI ,·all d that; 11'., t:'1t.'-1rrl. ,,•u lu\r to J.uU b~ lmlt• ,tl,oul 3 K of 4U in1 h Jttl) II un t Jrh ••.ult" of 1ht1 11trif• I Y.111 lr.1\.1" II In \n!JT9f•lf I" ti \l"t 1bt' m, ~1 11oui11tl1h m, an• ,,r ,lo m" 1111"" 1ml I nl&) mt'nl i(ln 1liJ.t I mt.tl'lf ,u11 .. , ,l,·J m l,1,Mm,i tlu~ lurm , t •tt a1h "h,J..., rl14"' ,lrillinJt °"' - lwinJ. 1lora• h ..nJi .. 1ina: 1'1r -nu:..., ut \frlr1 .. ula1t;r lo ltoftl 1h"" funo«T.

lht ,ln11 I u .. .,.,f ""-· Jl.H 1lt~· Nll1•

1h1drn.--.. 4, a h•11 1un. unil """' I

• lu :? Ihm~ t1! 1t., !"1 1111" 1dH aulJl,h Jn JullH !:. 1l lor U 11'! ~• • lh) tu J,1.-.tl tb ~ 1r1.11l drill• 1,, l11r1 rn~ •H drn111#'. t ,na fun hul lh II J ~1, tu I li1::f1t \, \011'11 fo1 l, 11 ,. 11111 H ,purlly 11

1f lOU lrll' I lo fir Ji ii J u:u ntionr-,1 ,1 h11r1•11 1 m 1mc1il

I O nu t4 r',al'.'!lv wh.al J u-,e,I (or I m .. , lt1tt of l ,ur--•• I t: ut 11!~ at • 11 J,..ml 1n,I a11,1 n c u1 th, m ~, 1f1at 11lir-n 111 )' l'l r n--.-ncil 1r tht-' 1101, ... I luln l h " u,rr: tlwn a.n lm h pr•

TIGJ

II

J~tmL! ~houlJ 1hc (.lit~ tnul 111

1..:11 oUT thUi r.in IH uu•r1 c,m, hy u{lli1111 ,1 hnmnwl tu 11,dh·n !IH ultl' 1 n,l uf ""•ldt p ti u11d J.-U-hihp nJ11h•u1•1I ,ru,I lfllO 1hr r,,rmrl \II ,tu~ 11111-1 ti.nun: 111 rn '"""' 11,·d rhr f11u11,r 11oli,,ul,I r, ,wnil ,1.F,,:, 2 "I wh 111 tout'"""' i" 11nh tLhMtinu. 110t• r 11,I c,r fOYI ,,f rin... \• IIJJlh ,t ... uth, r r•1~ ,.. m-.,,,,.,1

\'i e 111111r tMl'i<I tu th'"' n,:tu.tl ,..Jnd Jfl .. ol thr t 111-. 1111-.. 1• 1c1 ompli itt"iJ h\ , ... 1-llDI! ll(lt" 11111 .. , th•• ~,,,. hlllttli

--J"ike l, iut•I ul1nl! ii Jt t• • • 1L, 1.11~• ~u11 1 tl11 111Jl•HI 11f 1m\..1 :\,,. a 111 1J11 •JI" ,I,. roun,I I 10 .. lo J10L.,· '\u. lf, 1, I ,I.. ,. ..!I 1Jir.nrr 111 to1w1ir- ' 2 I n • i111 ,I 0\11 n "' 1t I 1ha..iu1ual Jin.., • Ir ~n ,n ~ ,az, I J 011, t'1 mplr·t,· l11111 h 1-- nn1' 11(", t11 m.11f1• I •r n , fl 11 '-1•1 und turn I•) l 'km_ 1hr \qr,. ,truiJtul .. Ju ,L,., ... \,, .. 1J i •. z.~, 1ln1l

, \t.J,.,- all 1,llw1 turn I•) t.Jkt11$C 111,· " fr a,, ur,,I a •1•1,l ... m .t\hlln1 ul 1h,u CW\ 11, ".J m the l'' ,111u• tuin .1hr-1 1111~lfi- 111ur I Ill \\ 1tl1d1-'• tlu 1pul..r• 11 I h I, 11 I I fT f'tul 11f f11u11~t ""111111),. n•1 11 Jl, tlw~ nt 111 .. d \U I ( I ni•J...:r 40\ na •• r I '""' 11,ruh

\c I m.l\ ,I lit

1>rtl1ur ,m ... 111 , •11 "' ul I 1•r1 f,..r I wm•I u If , 1I~ t n prr-... pahn uh 1,.,,, 11 ... m ti:I .... ) m,,u, r 1-. ._r.11~ th" r1bl11 n ;tff>Und tlw r .. rntrr h••!1\1 II llr .. 1,u~f'-4 1111 ~m,[ }OUI loit ••t1 lol• 11., .. ""''II .. ,m, II) ll1r "IPI 111- .. n }'f1• 1 r-. .. "''' '" I 1•MuJ1l•1 .. 1I

\\,ti " II m 11!1 II I ,.r 1111 d ur 11 pr11~1,I• 1 ) ,u ltA, a 111 111111111

i111~1 Jf wu, ,uu -.di f nd 11 n,·r 11

-...,., \ , It. tlu 111.11/""r i t" cu,I~ 10

•hell 11 ,, i1t hr I r .. 1 • .,, .. tl11-- mav hi

n•h ,.ahlr I II 11"" fflft' I• I a,,_ th l 11 up .,., al 1 1 "'ill 1lr,1111 a ,.Ju llu ~,,.. ,·- It'll rnu•h ,l1~11,liu11·d .:.11al1I\

\\ 111 1lw-.c \, , u~luJ I tl,li-:t ,i:J1 l .11,· n 51r ,, u, Ir. l ,111 .. d,:t-!M" duwu

ull I u "'' k

,I I Z 3 ,;- 5 o ""' 8 9 10 71 12 13 It.I IS 16 ll I f 79 Z() 21 zz 21 24 25 Z6 27 21 2 9 JO :51 r-·r-r-1r-,--,--,--v~,-,.-""T-r---,--,.-"'t"-".--.....--T--,.---,-...-.-...-r-c--......---.--,,---,--"1'""..,....---,

U HAI VI



12 WIRELESS WEEKLY Friday. Apnl :!!irh. Ht:!.J

~u1111,u111111111ntt1IUIIIHIIIIIIIIIIIHIIOIIIIOtltlltUIUIIIIIIOOIIIIIIIOOlllllllltlllllllllllllllllllllllllllllllllUlltllUIIIOltUIIIIIIIIUIIIIII.IHUIIIIIUl.llllll ... nlUUII UUI.Hlllll.lllUl1tUoot ....... ~

i Broadcast Receiving Sets and ! License Forms

111,11111111111111111111111111111111111111111111111111

I I

may obtained

L. P. R. Bean & Co. Ltd. :tw ca,,llereagh St., Sydney.

lelt-phn11,·. ( '11y 35:{

United Distributing· Coys. (N .S. W.) Led. 1 Wholesalers

28 l'larence Stn·o:t. S_rduey. 'l'elephone: l'ily 3566.

W. Harry Wiles GO fi:! Gu11lhnru 81 r,•et :"')'tlm•J.

Teleµlwut-: Citv 368R I J1111r f11,m 1'1t1 :---1

Wireless Supplies L td

21 Roy11l Area<le, 8ydm•y 'l'Pleplwne: ~ :3378.

E R. Oullen !16 Bat hnr"lt Street

T,-.1,•phonf>s: ('ity 869, 2596.

from the following

R.aclio House

Gl9 George Street Sydney 'l'tc>lephone: City 1-487.

Colville-Moore Wireless Supplies

10 Rowe Street Syrlney.

'l'dPphtmP: B2261.

Ramsay, Sharp & Co. ltd. '.:U 7 George ::it reel. Sy-drn·.\

'l'elepli1,111•: < 'ity !i 1 iii.

The Home Electric

106a Kinu ~treet Syduey 'l'rlcphone: B ~5fi;j

Swains Ltd.

ll!l-123 Pitt Street. Sytluey.

1 ................. u n u11u11ouu,111111u,,111• 11111111111111ut1111111u11111111111111• ......... ,111111111u11u11n,n1111111111111ftlrllflllllltllllllllllOIIIIIIIIIIUUIIUllfllllllllllllllltllllllHIHIIIIIU1111111[;J



I· 1 •> • \11ril :!."1th, 1'1:N WIRELESS WEEKLY

11 o l1tturd lt11m Jlii,;f· lll , 1 111tr11rl-

' I I f l l T,111 Jd•II <''-" \'\ M\, l,ns:.1h r:.11~ or WII"

0 11) Jju ~;~ ,,

r1i5 200 11\ 21 l'i :!J0-7?.fl ZI ~ ,l:IO lll'lO ~6 ~ 1"1-HW ::t,

ll fj(,0 '.),00 _,, :?..3 Hr',0.:!/1;,0 ~()

I ·, 11314(11,0 11, ,. 1i n1n 1111•1 ;:ll

II 11\f,O r,'.ll~l 2ll .'O :150 R;,10 ~

10 2'110U••t ~

,-i0 (,'; 31("1- I ,1MoJ ~~

IIIO 571KI-I •~WM I 311 l!:i 5°Kk) .!.1111•• llO

17 7:!\I0-:?.,001) !Ill

\\ I 11 ,.J 1l'm: tali1r I ~H• ,1 ... ur nl rh(' Tl,kl•r t 1>1I. ,. J h,l11·"

" ',li,ll 1 .. .. 1 1nt• r, •t 1 .. ~,,u1

~,.... toil l1<1rn•d I 1, ~l1·r l •11 l!Urw,J

z..; :\_',

.i, ;,, -;; lllfl 50 tr ·" JI.JO 150 -;; 111 _,'(I()

Kl 100 1no z,. ~oo 1.00 750 31•1 '" ·,on

l!KMl l.!.',11 3(kl 1 .. 1Ul

J"',0 , .... , 400 lo (,OIi

Croydon Radio School

lang-sl.. Croydon

A Special Class " ill h,· lu-1,1 ''"")

L' lll l{-:U \ \ ('UlllllH'nt ing :r;,h \lun·h. for 1·,1wri• 111t•11H r- ,, ho "j .. h lo lwt·t111W uwr,~

11rofi<-u-111 11) " ur .. t~.

' •')•ii- "ill .d.o h,· '"'Jtt't·ialh t oadll'tl If,

l'"'I'""' 1lw111 fur (,o\L•rnuu-111 l ,~uuinutu,n ror'I rJn-111itt wg ar1tl fh·,Tl\ UI!!

Ll11·u1-,.o1..

Fee: 2/- per lesson ; , '\n lLllt. tn ,, iO ,,.m

IJ

\I HI I\ J IO!\ '\ ,01 111 \I , IRAIH



J I

-----------· ·-----

., - -- ~lreless Wc:~1~-l II Sl llSCRTPTIO:\ RATES I

~io~lt• I ;upjp-.. 3<.l nrt 12 nwntl,.., ! 52 i-..~u,.. .... 13 • po~

I frer I 6 montlu~. f 26 l"-.Ut' ·.I 6 6, poi.t j fr,•e.

i \II ,·11nt1nuJU(":ttion-- 10 he HJ-dr;,,~(•d I•• 1lw Editor. \Vire],,!a ...

1

11 :~!:::{i::il;f :f ::::::~ in dw hu111J .... of 1f1t• E1lil,,r h)' Frida,.

\II fofl\ mu~, lw wr111t,n in

I i11l ur hp,·•t .:ind on ,mp ... 1rie u{ p,1pn onl}.

I \1h,•1ti,..in!! Hut,-... ,,u ,1ppl1,,,. t111n.

·=·•·- - ----------•-'❖

WIRELESS WEEKLY

P.Xl'£Kl l\!ENTF.RS OH.GA.N ISED.

lt ha-s Ct)lll~ ns a plca~nnt surpri!c' lt.• <.1.ll lu £ind th::11 dw movt>ment ln wac<l~ ,'.oncf'rted at.tion initinte,l h)

t be Wireless l u~titute in hri11gi11~ the cluhs tof!;eth(~r lm~ heen so unanimous• ly nppro,·ed-

\Vit h mutual 111h:1l'"l~ our duty ont· lh ilOOI her ha .. led tn n commun unili'r•tontlin~ br•ini, readwd. The rnmifo.-ation~ 111 tl11• t•'"pt:riml'..lltaJ worlrt un• -.,t1 tlmrnu1rhh· ,,I'll krn1wn 10 u., alJ 1li1tt we ap1Jrccfat.-- tli~ map;n.i1uJ~ of flw \\t11L in hand aml ha\ i11u. '-uprr-mt" tonfidenct.• in 1h, ... foresiJdu un1l \\i'-•

d,,111 n{ tho;;;t• l·ontrnl ling tliP moq~. mcm \H' fcf•I u~~urr-d that il wil l u l~ timah'b hP mo~t NJC<·•·~-£111: [ndr,ul11Nlly a.... Ihm~~ go on th1•r•· will lw murh tu f1 .. nf"n n.;; i~ l~\rr tlif" ra..--:p in mstt,·N 11f thi.,. k.ind. l,u1 when i i j.., tPUlt•mluTrt~d 1ha1 dw iu011e11c:e- .mJ finunrial '-trt•nJ!lh (,r tht· ln'-lil u lc· i-at tlif' hue. k ,.f t lif' mi,\t1nt11ont. tlwr,· ran 1w nn ,)1111ht tl1s1 il1f' inlrrf"..,l~ .,f Jfl l· lul,... ¼ill n•(.'t1 iH1 n ,n-.it.lt'raliitn liuli,---rM quilt• unnh1ainah'•·-

h j .. hut n,11ural 1h01 i;;nmr uf th,• duh~ ... l,f1111d r('t·l thJI die prupo~ilion ;1 ... ir .. laud-. iJJIJWUf~ tn !IJ\I· 1he \\'in"'-1, ..... (n..,llt111,~ E,;.r>qHiH• Cnun("il tht finaJ ~\' Thi~ , ... .1 fo1 I an<i rhrhdy

Rut u- lO 1La1 F.:xP('UUve ,~x,•rri---

inµ ils vein 8jrain~t thr deci~ium.i uf the- de)e~ates' counciL thit, i-. ut11•rly un1hiukaLle. excPp t in a m(>t.L extrl.""m.-• case a.-.. ii vmu)d threaten immediatf' roll:.t11..if nf thr whitlt" :-.f'llf'fflf" nf arr. liu ri,,n. T1 ha~ Lrt>n riParh d~:mon ~tra,rcl in rhc- past lmw Pft\"t·riuJ dlt' T n~I itute has Lec.nmr- and 11.! H iruaU<-r of fo<-" l tl1r numt- i'- a huU'."it"laoltl wor<l ~,·cr1 out~idf' rn,Jio c:Jrcle- and .:iri) al

km_pl I" nn oul~idc· hocly tn earr~ on J.-... gi!1-lotion wi1hout 1hr lull mca,:-urr uf tbe Tn61;1u1r'.. support will no douh1 end in disaster Tlw 'li.S.W Barlio A.!!~odalitin fnr examp!P.

Credit wlll're cred it i,- tlue. Tit~

~ IU-'11111 '" ·111: 'if ea

i WIRELESS :I E

APPARATUS ;a

-~ New or Second-hand, Bought, Sold or Exchanged

E

"' HOWELL'S

19 Barlow Street

"iii ii II Ill Ill 111111

·:·- - - - ------·----··- - ·--- - - - _ ___ _ ,_ .. ___ o-•!•

I I I I I I

' I l

THIS W EEK

15 L OFT US ST1lEET

SYDNEY

VA LVES : WD WD UV

C C

11 12 199 299 200 -

37/ 6 37/ 6 37/ 6 37/ 6 35/ -I

I G~bl~n Remler Co~ls all s~zes F rom 4 /11

1----------- , _____________ M------~



I , '" .\pnl :!~tit. W:!~

1 all d,ti nffU, 11 •nt c lnh111 •h •"" 1Jw 1 nt "111,li f1t'rn11a1~11- ,11,. .. ,,M

nd 111 rr:1,Jr '" •0•1, r,wwnnl t1k 111 1r pb('I,...., ,i.ht•n 11•'" timr

1f m 1 .. 1 a_ .. •,irrdlv "''II ,,n,I •• t<1.pt<rim,n1al ~,,, lc-1-" ,ii-..

bf- I or~n -t~J an I m,, .. t l1amthn• r all rr~;1rd1 mtl\1t , ... _

Tr I , ,ur I ·ufp~ l':1,·t' 1h, m 1h111 ur,• if t1qimrl v.liirh rh•ir ,11111•

n f' m nt" n,l \,111 ,\111 n .. -.umot" J.

~ .. --h ~ 111 h ,.. al p~r•ru unrmaa:•

OCR $PEC!AL L/1\E

PEERLESS Head Phone . ..,.

i!tJf/(I Ohm.~

WIRELESS WEEKLY

.\\IL \LEC. m:c TOH

.\,1u11n h t t-.·u,rr II• t: ,5,1•rim,.n11•..,.., F-,.ftPTiownrt•r~ .-,ll r,•1·nll1..: t \\ il11

rlr,, .. 1Jrl4 1h,~ lf'f1uTr rleliH•ud ti, tlwm on \la, f01h. l".._. \t·ar, I" \It Al, 1 JI•• 1hr, man.J4!-lni:. Jirrc:lhf of \1,..... .. ~ hurr1,u~h:-. \\ dJ1 unk~ -.anti t .,,_ m ti .. · \ .... ,,mhh tl..1tll ,,f tlu• b-ln , Ullvh llu1ltlma-,.

011 l11 ,n,: a:a1n 11111•r1•~d11 ,I, \11 IIN·lt•r- l1.t• Cl•fl'"'"fll~tl tu 11,.]nrr ,tu,lh n lrclur,- t"1tl) in Ju11 1h11 ,, ..r tu • nu.i11 mr,·linJC 11f ~,.,. 'iouli· '\t"iilr"' .,.,,•t'rim1 nlt'f'-

llu: Jll:1".1rt11 Ha1lio I 1111• h.1-. lu..-n ff"'-Jl0Jl"'Jb1~ f,,, 4(11•fhJt'hln"1 l\h 111"1 o,r. "'It" ttl11lh ~lcnifi,...-1 hi, r11n-.t"tU

\1 do 1, 11ui "' 11f 1l1u tU.t\o\dtrll ( Jul, 1111 \\ 1rr•lt•1o1, lnt-tllut 111 m 1km th,., un.rnt111rnnf& .:awl will nn,tt ,all ,h,h• •n,l ~'"I'' r1111rn11•1111 1,1 lw prr~·nl \\'111'11 °"'l" kf'• I' rn n1i111I tl1r t,,, llnu 1tr_l,UH1

1"0'11,n uf 1l1,· fn .. 111u1 -. •. h .. of'I n,, rl.,ul,h, Ii I•• 1h1· lrtltUf' t, 1·, l\1fls:; ju~t thr c1,rr1>1I 1chtJtJu,m1nr 111 p1Lk lh,.. liet,II. ,1 .. 111su1 1tw ... ,.w on 1l11 l,l t 111 (!Jll.l1+fl

f.,tn ,.."l"·r11n ... 111,,, 111011h, ••I 1b, nw:ur .. }u,ultl Ldlr• a , ardul H•I•· ,.1

15

l.11, I.Wit v.hu.h ""' t·'-J't't t ¥1111 he krtO'l\u I,\ uni in, r.k itn,I Id n •ll•m.z. pt, ~nit l11m hum utt• u.dmi,:, ~ ,ir . Hi:<t.·t111 I- u il1ordU.j!.h ~·u·1111 ... 1 ,. 1th lht• U)u,.I m1ttL·tt1 l'fll\1 l'J•li1111• ot "11• 111thTII'''

The Haron Electric Co. I "1111 Houd. :,1111 J11n1•1ion

\ lc-, ... mnn

~OR

SUPPLIES Ill\ II I II) L"'I 11'1:-, ll<lll\\ 'lit.Ill'<

!

' I L.i•iiw.-k I 1t, l,,¥,lt I toltur,-tut,

N TH. 1931 ,

•.• -----------.•

Complele Stt of 'Porl! lo make the aboce Se/ 36/6

RADIO HOUSE 619 George Sireel, S:ydney

·---------------~----·---------------------~



16

·r fir LEI( IIIL\HIIT \'Ill IJl"Tnlt r R \()10 ,o( If.TY

Titt• -ti,h H 1w1al mi-t·trnA u{ mt·111

lwr-. 11f tJi, Ld, 111'.udl ::tnil lh--11 i, I Hndio :"'lneld\'• 11,·1,I ,11 thl• I lul1 ru11tll.

17'1 Julin'-hm '""'t ... \lllltln,lalt·. on T1h~ .. ,la, \pril I S1h, wa• wdl a1trmlc,I

fin Tm· .. dn) 111 ,1 1h4• 78th J!t·nnftl flltt.'1111~ \'1111 l,r l11•l1I. \o\lic·n a -.p,·4·1.1:I J..,·1•m' 11ill lu• ,1,·lh,·reJ II\ .\Ir. I\. (. ( rlihH 11 'l'lw ,uhj,,ra. ,:Fading '•g nul,."" 14 H parti,•11l.1rl) ir11 ... ri--.tnu=. um'!. .111d I J,,mt roll •ip nf mt·1nht r-. it. .rn1idp,111•,I. \ lm, \Ir l'loil B,·n-lo.11, I Inn ,,., n·lnn- of tlw \\jn,J,,.,.. I 11-.11

IUfr ol \w,1rnh1. \\jJI pa) }11 .. IH'"'' p11n,·1I ,i .. it t11 th, ""'"ri, t, fnr th,• 1•11r~ pn._,. ,.r pb,-in:! b,•fon_ .. m1•mlwt-- tlir ,it"-. ,d 1l1e ln'-li1111,· n•gardin~ thr 11 f1liut111n \\11l1 ll ,.r utlu•t :--,mila, lu1d

WIRELESS WEEKLY

i•·.-, in I\.S.\\' :\Jr. Rc>n ... h~..-w·Ei q~J1

i~ luHkeJ r,ln,ar<l lu l\ilh much jntf'r• , ..... a'- l1r i-. in a J.1W•i t im1 In t11Trrw m11d1 ligh1 nn lhf" ,rry lmJHlTlant qw• ... 1i11u uf liw propn ... ,·d am.al,}.Ui.tn.1.• lion 11( aJI r.u<lin .. idt'lit•.. ~nd ,·luh .. thr11md1uu1 I hi- "talt-.

\If i11furnta[i11n 1c;:,:11uLt11! llw acth• 11 j.,~ nf I l1t' ~ot·iet, ,,·HJ 111 ~uppli.-d h~ 1h,· I lt,n. i..;.(~1 ri•tnn·, '1r. W •. I. 7.i•d1, 11f

115 l:~ood1 ~I AnnandaJP, th whf1m in 'tuiriP,,;, !'-hnulrl hr addn:>"''!'-ed.

CO'ICOHI> \\.IATI 1:u H•\ll[fl n1 n.

Tiu .. :i l11 1,,• <'lul, !tdtl 11.: u .. u.:½I \\t?ckh 1111·,·IIO~ .ut th-.· 1 luli ro11m_ •f:uritwdt!:-.'" \\ .t!lJt·• "-IJff••t, Cnr14,.•<1r<I. on ThursriJ)', I01h \pnl. wfwn a ,t•q int1·Jf'..,l111::, t'\l'Jl!IIJ! "il .... IWIII

Thi• allt•nll,rn, ,. \,a~ Jgaiu 1•'\i'c•llt:11L. l'b,· ,in· 1,1 ·~idr•111. \Ir. ::-,tf'plirn..,1111 t1wl-. lilt' d1air. awl l111~irw•-- \\W- pr11-ll'1·d,·tl \••ith

f'11rt1•-.p1111, l,•111·,· ,-.i 1-. di.· 11 rrr,·h·t•rl. 11111 1t \\,h d,-i ici,•il tu ..,,•ml t it,• 11ffili:1•

1i11u f11r111 lo ~ Jr••lt• .... ln-titut.... ti"- -..,11,11 " .. 1111 .. "-il•lr-

Jr ,, ,11.: 11rnpu ... ,·,l ilrHI ... ,•t·11111l1•,I th,1l \lr. (,1.1) lw ,•ft·, 1.-.l 111 fill tht.• \:;JL"Jnn

111 manaµH1wnt nl(111111ttn• Tl11.i: \Ht'"'

Fri<la,1, ,\pril :!:"ith, 1 !I:! l.

carri<'rl A~ tht· tr;.m~mittmµ. {t't lrnd lit"t'l

:..~•nt h, \lrlLnurrn-. ii ,,,, ... ,Je,cu.l d tu staTt thf' ,·r,nw.tTurtion nf th, rr~1., ... mi1 tt'r.

A Wf•t'!jU}! ,,f tlw trutna:.?1•mrnl film

mUU:1M j ... ntl'cd for 'untla) .. 111, 1 ,LL April.

Tlw llwtnher-. tli,·n PTitt-'n•il 11111,n ti U!--Ual 11 uutft•r ol' ;rn l10111 q1Jf.'Sl1nn MJd

nn~,,t.~T'i p1,:nod :\h,·1· l,u.un prOl'tH'r .. tt>fn hmf"nt

,n•r-~ ... f'n·ed. \Jr .... l'lark~r \\a;:- tha,-.k ,·d ln 1lw dn1 , 11w111l11 .. for tlir n• fr,, .. !1n11•nb.

\II i·umm11nil":t1ion.. l.Jl,(\u I, 1d it~, ...... ,.11 tlw Hu11 "-1•rn·1a > \\ Ii B.ult•t. \\"alJan• ""L ( ,1nn1rd.

II L\W\TIH\ J:.\lllO I I.Ill Tl11• i:)1h nwdinf! hr-ld on 111 -t~

in ... ,~ drrw u fair a1lt'11da1iu t 1 m h,·r · , • on"' d,·nu~ 11t. •ni·lt!m nt ,u• i1 .. ,.

\ lrlh'r lrnm 11,r \1J rid,,111, I lul; fr'~Jrdin~ lh,, n1 t11111 •h , , "" r 1l --.l111ulil !w ta~ .. n un heh.al( of n11~n1,1l 1111t•r1• .. 1~ ilt 1h, , or1f1 1 1 •

11.c l',\1.1_,. ""' r,• d • ,.J , i" .m,J 1}1.- ~•-·'C'n 1ur. \\;J.., m .. truch'd

p 1r ,nth th1 • rl111•• .. '''"\\"- th• 111,r

SPECIAL VALUES in RADIO EQUIPMENT

OFFERED BY DA VJD JONES'

H~:tl1~111~ 1la· rJ(l('l~~it .,· ,,r hi},,!li•1·la~s uppara•us i1, tJw Pxp11nm1•ut 1·1·s• ~1.1111011, 11:1\ irl .11111,•~' alf.• offl'ri11t.! ·h1•-.p hi:ili d:I""''" ~oo,h l' ir,1:ttl,v rednn·d 11ri1•e..;,

1-ut•k1-t ~f.,r,., ... , 11 In ,·nt~ .... r:ad1 1: 1i l '111•k4,j \l1•trt'.'\ II ;.11 \ 11l1'j. i-::ll'h ',\ \ nJt :11u pwl·t rr~. l'rh-,·. ,,a,·b ~ ,., \'. I'. 1 '011tn•I l':Hn+ ... Pr1i-e, 1•·11· 11 .!'-i \ta,·I .\n, lio Fn·qm•111·y T 1111t--.r."or t'orntt•h, E:11·1J • • 2:;1. Frt:-;l1ilti llt \ ;Jri:1lih· 1,ria Ll'.t1k~. Eni-11 4 '!l ·1•1u,111• l 1 lu:,t~, •·~ur•· l,l'ip' " F.arl1. -tt'!'o~IC4\ \'. T. ('ou,pn-dtwu RoPkd, l•::o ..i, .. • . .. 3/· lliah tonPil Ih1zzt11r-s. 1-:arh . • .. -4/!I

D A V I D

Radio S e c t i o n , 252

'•f'f•pppnq .. l,l'" \,•rial \\'ir,·, 11111ft P111· .I

Exceptional Values

1'rin· • 1 • Fl'O"i.l Puuc'l,S,'' ~llflfl ohm,. J-'T j l'I-' ••••• •• \ t !:1.;;; Lnwl ~pt-aket'!"'il. Prh•t•

• • :Li

. ~i I h

~; 1., I Bal I Ht1 (~1ni1l1•11~1•r l>i :ab.1. l 1rid'

B:tkt•ntc ( 'onrlC'nS("f rHnl-1!, Eae>h • • I !1

J 0 N E S York Screet, Sydnev



fr I , .\J•t I :!:,tli 1'1:!~ WIRELESS WEEKLY 17

BAKELITE DILECTO ELECTRICAL MANUFACTU R E R S Wire less E xpe rime nters and Others

D O YOU USE THE BEST INSULATION? l \Kl:111' ~fl(

" r

t O, hlll

S ll I I rl 'l II \\

0 . H. O'BRIEN & NICHOLL (Sydney) Pl,one 3302 Cilq 37-39 Pitt Street



18 WIRELESS WEEKLY F'riday .• \µril :!51h. 19:!-L

The Moore Fund

T,, 1he l,.uitor. 'ir. A~ llfl(• of thf" trn..,ter'- of tlw

i;.thf,n, fuJHI, au<l rn my ro.par11y nl Jinn 'rrrf'lnr, 1lirrrt11. I dt·~irf' to tlra.,"· dltl111tio,i to 1h,· ,·xlrt'"mt'h pnur rP~pun,t> rrom t"'XIJt'riuwntt:r ...

In mn11,•r.:: ••I 1hi .. k.iml .i quirk 11ml -.,ur,,. n·~pon--1· JD,~,., lHNH ht•dJI 111 tlw.:,, ,\ho un• 1•111ru .. t1·tl with dutit-(,i "'hid1 ar,· 1-ru h 11.n-.~rerL Th,. trn,l(•f'~ of tM~ fi"and fe,~l \.trv acult'h· 1l1a1 tiir '-llirit nf I lu• ("\µ~rimt•nl('P..:

,nu,-t ha,e undeq:,1nc- !;11me c hanj!e. Jt ha, bct•n a nl8ll<•r "f dt•ql ~oli..,fuc·tion 1l1at ll1f" trnd,.r~ 111 ,\1n~ll:'1.."' apperat11.-. h,n,· iri,,·n ,.uch •llkndi,I supp,ir1. \\,• JIJ kn(1" thf' e. .. \:p1·rimenln:-- ran dn l1t'lfl>r \Ian~ hilH' 1,l:i,en. 1ml tht'Y nn· o \l"f'} .. moll lh:rt.·r·nta~.- aftt•r .,II. Th,•rt• ar,• 2500 r,xpvrimf"'ntPr"'- i11 t\'i•w i:::,1u1h \Val,--.. arn l 1111- 1ru .... 11•,•t.;, t-•Jn lu-• pardorlt'il for luHing e-xrwctPi l w ,·nllt•1·t ut th,.. \·en l~a,t £!!:'lO: \,hn,·ounh nlimn £ 130 i-- in h.:.md i.;.11 far.

J appt"af tt1 all f>'.\JH•rirnt•nlrr... 111 rally lo lh+s 3!-o!--i ... t;incc nr the wid11\II

a11J l\\.H young rhildn"'o of our 11nfor-111nate frir>nd anti u~11dat~ ,, ho v,a~

hdM~<i hy all wl10 knew hini. \~:,, ha\'t' ~hmm in man) wa> ... 1ha1

Wf' arf-' .J ho<l). \\t-11 11rgani~f"d. anJ ,..,,riou~h· 1•> lit' rrrknnetl with '"ltt n ot~c•ac;,iun Jt·rna.ru.1<.:. ~,, nu\\ l~t th olso pnn,~ in uur 1,harit, we r11n lie a:.--1ronJ a" ,1,1• arc ill our haulr"I. Evt-r,· experimenter can hdp h, .. p:u,""in.u a word:' h i .. e.:ts), anti. no mrtl!Pr h"" small thr rontl'ibu1i0n. 1he £250 \,ill then lit• m_.;;~un·d.

0 1 n thin:;-~ impnrtant, ar1. qw1.·kly and d,·,·ib.i,,·h.··

· Your!'- '-int"t>rel), PTTTT. RE.KS HAW

f'.nntril ullons 10 ciatc: l'roprif'lors Wirele,~ \V~ekl) Cni1ed Distributing \Ir. Quaife . . . . .Virel•••• Weekly Staff f'. flen~liaw .. J\1 r .Innes G. Tavlor .. J. W. Hnliin•nn . !'. Basil C<tfll.e .. , , Sand,•I . .\Ir. All,o r

£5 0 0 10 10 0 0 10 0 I ~ ()

3 3 u 0 10 ~ I I 0 1 l n l l 0 J I n 0 10 t,

\Jr, ~minders . . . ... Hobert II. Doyle • . • . c\li,, Uuy . . . . . . . . . A. F'. Price ...... R. C. Marsden A. l)urc .• ,\1. J\l,·ln!osli .• Colville Moore -. Hcrkcr .... -. Sauder:; . , ..

,:onmnl Rudio Chili V. J. ~l. Darby Wireless Institute J. Usher .. D. T. Hincben .. R. W. FaulkM .. A. Db,on .. J. Lend!aw , • C. Storm H. Carter .. A. Larkin E. Mason . . N. Ambrose .. J. C. T'richaru Keith Dnr,s r.. Leaver R Seach . C:unp~ic a1HJ Ui~trirr Rallw

Club . A. F.. llenri

! 11 Ill 111 I II' I Ill 1111 II Ill ,!h II 1111 1111 1'1111111111 '. 1111 Ill '11111

;.,,.,.,, , ........... ,,..,, .. 111111111111111111111111111 .. u,11111111111u111111111n1111111111111111111111111111111111u1• 1n1111n 1111,..11111111111.

I

""

i I ............. -........ , ANNOUNCEMENT , ! l ..................................................................................................................................................................................................... -.... _ .......................... ........ i .................................... ,

American Radio Apparatus Wholesale Only

PACIFIC ELECTRIC CO. SECOND FLOOR. KTNCOPPAL CHAMBERS

No. 38, MARTIN PLACE - SYDNEY

~,,,.,u, , 11,uuu, ,,,..,,.,, , .,1111111111111uu,.1 111111<"'"""11111,o, ,u.,11u11111 .. , •,,.., 1 ,.11u,.,,1.,.,,.,,1111111111t11f10ll" "'"'""'""t111111, ...................... , 1111110~

0 10 l I II IO 0 10 I 1 O 10 0 10 1 1 0 5 0 1 (l 10 0 12 5 5 0 5 5 0 0 2 I 1 1 1 0 15 0 5 l 0 0 5 0 3 I (I

0 5 () 5 0 2

0 15 0 5

!11mn11rn111,111: llllflll;,1111 rn111111•11111 :111 illUIIMl'III:' 11111 lllillllli IILIIIIII :Ill ~l~lll"~IIWIIII IIIUIIIICIIII Ill! 'Iii IUI Ill 1111' Ill Ill! !Ill II Ill '1111 111 IOI 11111111111m1111m1111·111m111 1111 111101111 !IIGllllmll lllllli~ 1111111111 llllillll, 1111. lllil!IIIIJII

6 0 ~ 6 0 6 6 II 0 n 6 6 0 0 )

6 0 0 0 0 0 0 0 0 0 ()

6

0

0



:!:\th, 1:,:.:-1 WIRELESS WEEKLY l'I

rn·h111l

Jho;lrirt

... Jburb8 \m.a.tc.ur \\ irrlr:$ A--.. uu•flun •.

ll Uwl,ng,•r

... ~ _ ... ;;

0 5 I.I,,.

I 8 0 10 0 5

£1 I

I 0 I I I I 5 5

0 JO n 10 om u 2 P 10

II 10 I I

I I I JO I l

~

I 2 ~

z 2

~ JU

. ...

0

0 0 0 0

0 IJ 0 0

6 0 0 6 6

~ II

0 0 0 0

0 0

u

0 6

.i\ .. 1du n ""'ulturlr, lt.Jdm \,..~-.-·lat ion 3 3 IJ

U..trrui.. l""" l.til. I I 0 \ 1- \1c l\t"nLif' I \ IC.) 0 s IJ \e• ""l}""f('ll1.'" Trlt'vlum;;

Pt,:. L1,I. .. 5 s u .• , it.:. .. 0 7 u " ,n,.rlt') l~aJm t:lul, .. (0 0 \\ 11,·lt · lrHilUh-: uC Au~1r••

Hali.a I'd Dn t. 0 .J 1' 1•rr1, r I I )11 ,, Tl Ftlln\ l \larl.,11 ~ 2 0 ,. ~ l 11.tr1lf"t 0 l 0

I otal 11(18 1; ,,

llr1 \\mlr ..... ln..:tllul• ( .ounnl if1\il

r.-tl ( i.l}•ttuo l lu-1111 fllu,tth 11111! "IH" J«--. 11(].t( ci~ 1o JJ.nr ~ 1th Lh«-w 1..1 \\. • nl

\\nrlh lf,l(t f ~llJ J IJU.r ... ,!.., Ia .. t, Jtlth Hl~l. l nr\lrtUnJ.ld~. uW1DJ! lot l'Tr• -ut,. ,,I J,IUhlu: fu.ncl.J.,,ru, tht ,.uut.11 tl••h 1111,J , .. J,... \1 1\ Hl(.Htfulh ,t 11111 rJ.

\ 1 t•, It \, StoVir anJ 1'1111 Uru ~Ul\li ~rr l•lflH'l"tfina lh M,·lht•UIJ!f" on I hh \f,h 1,, J .u11c 111.ttt· 111 iii, \ re 101 ian Uh,,.,,.,, nf 1h; ln .. 11tut..,•• \\ ,r, tt'1 1n.f Elrc1tir1I f:'lhif,f11on 1hat "'•·c:k i1 1h11 , 111. :m,I "'111 rrprt>Vnl " ·' '\\ U1 \ i-. ,1n :.:It 1hr \\ ir,•l1· '- rn.;ltUHr tn l, r.1~ C 111nf<rmc ... "Ii \fi, lbtlt In \lt II, umt

.... ,·•4 ..

lOH ~\LI t 1c,11,ylt•t1 3 ,ah, Ht·* tL'1' in;.! St::l, \\Jll l'll'k UJ 1,U S~it Ut'\ •.s 2t't11th.1111't baH• :tlgu !J,•:s.rd \ h t1,rlat.1 ,llJ.Ulh ura. .For lull.lug llit l1utU,}<'llll.lb t•od., lot) .!Ul•O

tcLh "'• \\ llh olht:r 11u1tDb1 4:'lJIII

'ttlll \\11rk. UJ• 111 lO,ODO au·fh"?j, 'IJ1c ,.,h ... lt lr•pho111 1:1.11,i I l'Utnrll•t tH 1ru 1*11~11 I, ~ul, • II ,, 1rt1 1 uutU~t) ou 11 k••l1tc•, 111111 c t1("ln11 •I 111 1•11f11,l1t·,I , .liuwl "- 1 11 I \..l\, will 1dl fur ..Cl' Ut •011 fut adl

1t1J.1 h1"• l,!ut :; ,uh, M l H 111 f..,n1;I ,t, \\tit rnr 1p1.nln•11f'nt F~ TOot•J. t .I l\1, in \ , ti ,,1 . ,

BOOKS ON WIRELESS Tu·11hF11, R11d1, nw11am m,,t

11,,"1,; I r•. t)f f'n •ial an•J \ u,liun [l,.1 rhJnJ ~rH. l'rnr. l 3 511 tr J

.4 Rrrntttf: R,., nlfr 11011, 111 '1JL,, Prirt'• :l '.l pn.,trd

l(,,dio l'lwr t ,, -tul ,n Uuw 10

M 1k,- Pn•·t- , 3 JVlllh••i fff'/fri. lfr, ,·ip•r lf.,"' , .. 'Ink.fl Pric-f',

!I ~ 111.,..1r1I Rrt.dro I n·qurnn t,,11.Ji~,•r, ,mJ Jlt,u:

11, lfol.,· Tl.,-"' B,· J AHry 1•ntt. I fl pt1 .. 1.-rl

N .S. W. Bookstall Co. Ltd

We are pleased to notify our customers, both Wholesalt- and Retail , that we are now ready to quote for the erection of aerial masts from 30ft to 200ft. in either Wood or Iron. also for flags of any design.

E. I L DHJ~TT & ;-;< >~ ;-; L'l' I >. LITTll AVE SUE 8\IMAIN !iAST

Phunt W l:!O"i )

- -------- - ----------



20 WIRELESS WEEKLY Ji'ri,lay .• \pr1l :!:ith. l!t:!+ - ----------------------

Before you

Expend

Money

Radio Equipment

on

Consult

Horderns'

Wireless

Experts.

l ::=, :::::~; i of

everything

that is new

in the world of Wireless,

is invited.

(Wireless -- Second Floor)

Anthony Hordern & Soos

Limited,

Drirklidtl H ill :,! <l.u.c~

Phon«- Ci.tr 9UI.J.

F,,1u11111111111111111111111111111111111111111111111111111u11111111J

J, FOJB1ATIO,',

\ B.- ... 1111 Lit1J,, American."\

Ont 11l tltc lu~t que--=ilion!'l 1111e a&k11 m f'nnnPt I inn with any n•t·ei"ing set is. •'Hm, far ,,.j1 I it r1•r1~hcf11 bi m.1.1.1,,m~tanl'.-... :u.hant...11,:.,.- hai:- L1·e11 rnl...e~ h)' d1,· -.prt.·adinb ,,f proµi.1gomd11 dc~gm·d 10 cn•~tr :.i 1lt··rnnnt.l f11r cc1 tam 1,1...,rrum,-nh u~1.•<l in l'adin, I n l)-lJlth.•

,·a:--, . .., tJii..;;, lta..- l1r+"'n utiµ1t1llkJ to mi-?'! IF-:ul anti creak ,;i dtminrul f1 1 ,1 n·1-to..in rtc1•i\in~ set, and in 01her cases thn•uj?h jp1nrnnce. Tht! abo,.-c qucs• I Ion i~ ..,,.1,Jom un~wei-ed 1n an mtelh ~PJll manut·r. f'rnhahh 1hi!-- ls I,, .. 1 au,,• tl1•~ tJUc~twn it, ~,,me\\ hat amhi~uuu.... It ,nmmnt, 11, --ayinJ!', ··110,\ rar can )'IIU lw.1r 1h1· tmlt' u£ mi,tdh.· (~ of t11t• 1,iauofortt·?" lh1• .:in,w,•r to 1hr I.alter j .. _ 11( {"hut&', 1hu1 i1 dt:ipt<nds un 1h,, ,ulume: p( that t11nc at ii~ '-nw, t..': \\'licthcr t11l' lnnr it:i t'Ol tUed 1., ll '-lt.•ar1t \\l1i-,tlc• Ul" :i t hd,rs muuth 111"~,u; whetl11·r tl,r ~L111nd 1o11j!ina1ed fr11m a hi1lwp nr from A vaHt·): whe ilwr lh•· l1~l1·1wr \\H .... on J c·o1unlr} 1irmTit• or in tlw miJ.-t ,,I rin traffit ,11111 nrn-.e-... •

A rutlwi Ultf1J1t1t:1~ r,·1 1•1,inµ ~,-, 11 ,,,

hnnf,! 11 .. ,,._.n..al.... lrnm ,1 IOOU w11t·l

bruad1 1--ring f-t,11i1h 8CHJ milt...,_ a,•,nr. liu1 ~ 11·tt•1\l1tg --..t•l tlml \\ilJ 1N·ord du· ~ij!"n~h, frolll .J 10 \\j_ld,f'r 100 mi l~:: :iw:1)· "ill 1111\T .lei uw1,lbh1•,1 a. much J,tn.:.lter re3t. Tlii:!- di~lann• O\'•!f whiclt rndw ,~an lH~ i,wked ,rp v,tr tt.·'°" with tirm• nf }'r-1r, day anJ n1,C"hl .Jnd olher (01,;IHr .. , Jt is ~nulf'tJwe .. p1, .. ~rhlP. t•J bPOJ H ~latinn lUOU miJp.,.; a,faY a( ni&lu \\ l1i11• .:!OO nti1L·~ wnuhl l1t." tlu,• ~n·:th''-1 rl i--l,trn·,• rn\l"'rt>ti in Jaylil!f11

\ Pr~ Inn~ .:wriu).. \\ ill nut brine; in loud '"ilJ.m;i.l!'t r WIU brt1atlcas.tin~ -sta4

tillft~. A~riafq u~·er lSO fPet in length mnkt· tWtitqz llH•n· diffirult. J!ive we11k• er 'liJ?nnl~, rrncl Lriut,: in m1 ,rt' static !lfnre- 1ht1n unc wirf' \\~ill nl1I i ncrrase thr ,·liccti\'ene!'iq nf y11ur aerial C'X<"f'pl

in the , ""e of e,ceeclinrlr , bort one,; 11f ab11ut 20 f1•ct .in t~ngth.

A radfo af'rinl i~ not i,o mnch of n firt· hazard as it i),. --•il11i'tinw .. n•p1u·tt!rl 111 Lt". Thi -. h- Ut1! mPJlll tn i11di1•3k I liat liirhtniH,g ..irrt• .. tf'P.. nr,• n,11 w-11rtL \\hilt-. f11r JJtutP('I it111 11f tilt' radio ~11 paT/}I U". 1111',l,"fl"{"r Ir \OU llnvp J. gootl protector. 1111• l1t 1U~t> arlll instrumf'nls an, 1.1~ ~afc• .J~ if you tliJ ut.t have .;c

rddin nt all. '\'t'hhoul n prntf'l'lor1

the hn11J1t• j..,. !saf,.. hut -l:ili,!d1L dnmng:t> mie:ht

f'ublisl,ed b, 4. 1'' Wmt. ".';rr,ulrniri/'· Ra~/ Cre.,rcnt St .• McM1Jho11·s Pom1 f~r. tlte proprfrtor.s and prin,rr,. P11h• hr11r Prn, ltd.. .~3 137 Rci;•·rit ,, .'hdn,1 .

r,-i--ult h• tile in~trumrnr... if Hftlitning s truck in the ba1·k yard.

T1u· lcfltl, '-'wa,·p le'nl!"lh," or ul\'U\,...

fn•quf"nq·."' hn~ no tliHTl rebtinn tu th(' ,t-ndinj! power nr rJ.flCP. o l u ,,.nJ mt: !1-l'f. nor dnl':i 1l rrler t•J 1lie <li-s lon1·c from wl11d1 you can teet:1ve '" 1lh l1 f!ihm rer~i,.,·ing ~.-t, l ri ~-'-"' lhnt b

,...1nLion 1g; ~crnrlini? at 350 m,•tn·':- ~an l,·n1,?th j .. nnnpo,aLlt:" lo ,11,.. '1.alt·m,~nt rhat a , tulin ~trin~ ii;; 1 nnc.J to ''G .. of tltc µiarwforte. A l11W"t.'r 11nwet ra• di11 tr:in-.milti•r, witl1 u ULU.imum rauge of 1,-n mile~. ruj~}H l it> tun~d tu 350 n1t.~tH•'-:. \\·ltil,~ uru,tltPr t ren~m1tlt1t, with .a. ranee 11{ 10()0 milts cuufcl n:--~ tli~ sa:we \\·.:.n·e IPn.gth. Llkl'wi~~-- the v10 lin ... trini;:: al "G .. rujf.!,.bt br h,·.ird at 11

Ui.:--1~mn· .. r 200 f,•f•l. '1 ~t•·aJ.IJ whistlrol,r1 pi1,·l1,·t.l :tt ... G" miJ;.!hl lw anrlih le frc1m 1w,~ miles ttwar.

D,1 !1111 cxptTI amp1ir, iUJ: tr.:1n~fi11111

f"r6 ,~ith a J1 igh '.":ih:p-up r.1tin tu al\\J}'tt .f!l\"I" br--1 rc~ult~. ,ra11,• 1-) l11 l tram.JLJTTfll'l '.:i iJrt• inft.•rJOr to :n ,f'(! 1 tnw:.: [ht-rt' nrr ,:uod Pne.., nf i":u·li 1111111,· H~m,:mhu, 1llilt th .. 1ran5f11rmer rAu1111I :11 Jd ,·1wq ... ~·. 1hr H lmtlrrtf$ do lti.ll

\ 1111u~d dm11r1 11( \\ Jfr•lt>~'" InsltlUtt "di lot loel,I ou ?ii"' (>111 n,,-1 at \\'rnt ,,· , 1r th llotd. l\lr. \IJ1 lurc.nn y.il nrnkt~ hJ.., Jir-t pulilw oppe,.u:.in,•~, lht·r, .-11, aht·r lti!il retnr11 fr11m 'Fri-.c11 ~f1 J "I.. Davi< »ill lw a guHI of the ln• -.1i1ul,• uncl itn-itat inn:-: ar, L~ing :,• nt 11, I .11rd Fvr!!tf'r on,] "ifr Dodln ,].~ ( ·11.11r, Vr•t.lntil ::ind ~lalt" C.11\:f'J11,1r_g ,,.

,p,·c11,ch, Mr. Gib, .. ,, t r.,u .. , \lr \luh1nc and )Ir. Cr,ndurcL r,·prt::"-t!'llt• IIIJ! 111,.- l'o!!'LHJ~Slt'J" c;, .. ncrar~ [)rp.ul went, lltl~ P.-e1!-1d,:-n1 n{ lhl• \s~cia lim, fut lht" llf"\eloping nf W'l1, I,~~ i.11 \mrtral i.a. Ne\, Zt.: .• 1Ln,f aud f i)l, I C

J2Tt.''-il'Ulin:: thP trade. \lajor \brr, n ':·(). \I.C:., ~Lil ll., n·~r,~enl on, th h~tl,•ral l.11-..f'rnmrn1. and \Je•hrJI:, l,11-t1~1rn iltu.l \'Ca11. t1!~J1t•l'ti\t"h cJit1.11~ of 01 Rndi11.. a.n<l "\\1in•J12.,." \\ -..•1•kh t• r~l)f"C'"-l'llling 11111 lo,·nl wj1dt•s'-l pi, .. ~

-/lsJ. for . .

G'R.ODRN 11,-Qnd

Paper Cylinders & Slaters

! GROSE @D:IJNIELL Whol~!We .unh

63 i'!tJunlairr Slrtel • • C,to



WIRELESS WEEKLY Frid,,~- .\pr•I :!~r h, l!l:!4.

~:-----·----------- ·---------

.. n .. flila~ ..

'\'· 0l ~ ~ • . ,, .····. ~ ' ' -;~·'."

' · \!'. ~ -~ -0 . 0 • ..

Broadcast and Experimental - Radio Receiving Sets -

Range up to 1 ,000 miles Prices: Crystal Sets from £4

Valve Sets £16 £75

As IUuslrated Three valve receiver complete with Baldwin Phone, Radiotron Valves, Atlas Speaker,

Batteries, Aerial Materials, etc

fl Loud Speaker of Distinction £45

l

R odio Broadcasting

aalveg all your Home

EntertoinnH~nt

Probleme. I ~!ii!!! .... -0

! The Col;il:e-Moore Wireless Supplies Ltd. I I f 10 ROWE STREET SYDNEY

-:~----



"J\"o. II" JtfTERSON

AMPLIFYING TRANSFORMER

4 REASONS WHY ! l,L.

A .lcftt•r::.cm it-- ... rwuti:tirnlly de:iignt~,L

:!ml. The ,, .. irnliug~ arl" cur~tully ealeubtt•I! to produc•e 100 per ,•ent, :t mplifieatiou - th,·y ;ire uot built np to e ratio,

3rd. The .Jcffrr;o;on liue embrne• eR a. variety of amplifiers to 111t.•et everv flcm:lntl -six .\ 114Ji11 m;ri two R:.ulio Frcqtwncy type~.

11h. AB picutt,er tr3u_sformor mnnnfudnrnrl', .Jefferson Engineers dt,il.(necl audio amplifo•rs long bef"rc lladio r~n,•heil its present po11 ulnrity \'nu will apprecjate ~Jen't.1rso11 ·s 1'.":!ttftt yPnr! of. ei<perfoncc.

" 1\/o. -15 ,. JEFFERSON

Amplifying Transformer

WIRELESS WEEKLY

The Vital Spot In the Radio Set

is the tr~ndornrnr The advru,taga~ of 11,<l11g ,T~WPEHSOi\f TilA.NSFOR~l Elt>' 3rc '1rkmiwh!cl.(t••I by h11ndr,•,ls ut lhous~nch of usp;s the \\ orld ttn"'r.

Frida), .April 25th. 1924.

btubility of operation; li'reerlom frow flistortion; Maximum \m111ifi ,-n1ion! Those :tr~ the ('ha.ruderistic•::,. rl.eru3nded C1f tranNforme-ri,, and thry nn~ the qu:ilitiea whid1 lo'lvc made .f'l,PJ-'ERSO~ TR,\ :s;!'lFOR:\1-ERS th,• m<>•I pnpulnr among expPrimenter11!

fn1roduci"I( Jefferson .. ',TAR·•

AMPLIFYING TRANSFORMER

,,:,~.;., I-T!1~ .. ~~1~~:,~ .. ~~·

'"•u.e,"' fJu1 .. arl.ll-. lhne h hU1e ¥1t•I d 1 frt1tllJ:c.. h!l>iltdlp fhne'• alJ Ui,d.dh•rt-nC'!' IQ IJlfl WOt-1!.l . Lhl'I d.rJu• ~au: h,.llrflrt1 d11u, m.tJlotl' r('ecp-

tl<1Q ll.tll:$ l)• IOt tr«riir,a lull "'' •q1H111i:1 u:id l'1Wll\llo)11,

Ma11, raditriR1• ll!lt11U1,n,.i~1r p.it IIH •••q""•ll• HJ 11q1»•k• .. n:uo tb•·•r u•t UltlYU(h !t'i.- uw d UIIJ!rrpt-r tllllU!• l,•IClt"n.. The) b ...... Vt-T 1 - ~&m rh,1 "RA TIO" m•u1.t ,b.,,,,tu,..ev not!un.c

tlal IO~ 1, it 10 1,tlC . doul'I 'lpeU cn1.1.1n1.1•lft am11hi:oito11n

Worl.J '• Leacliug Transformers stoeked by Coldlle-Moore, Rudio Hou•e, Radio Co., A. Horiiero anri Son~. Ramsay Shnrp, TTnivers~I Electric, Wireless Supplies Ltd., m,rry Wiles, David .Tones Ltd. ~iark l?oys Ltd., Homecrnfh, Melbourne; .T. o.' Price, Brishane; ,\delaide Radio Co., and :tll Leading Wirele••

Stores thro11gbo11t ,\ ustra.lin.

Sole Agents tor Austr alia.:

Fox & MacGillycuddy Limited

Daily Tek1.m1ph Buildings, KING ST .• SYDNEY 'Phone: CITY 3062.

Buy an

Arnplifyer For "Ital it will do -

Tl.Jc Scn:it·e il will

ren1l11r •

l'l,c tone an,1 voh,me it will produre-

Results Count!

You introOut·,a 100 pe.r ctnl

~f'i,~ntilir dlicitlllC)" into your set "hen )OU 1runal

JEFFERSON TRANSFORMERS.

J El'FJ<:li...<;()!'> JlADIO

Frequency Transformers

Date post:	19-Aug-2020
Category:	Documents
Upload:	others
View:	1 times
Download:	0 times

WIRELESS WEEKLY - americanradiohistory.com · The wireless weekly : the hundred per cent Australian...

Documents