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The wireless weekly : the hundred per cent Australian radio journal
Page 1nla.obj-632037630National Library of Australia
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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.·~
The wireless weekly : the hundred per cent Australian radio journal
Page 2nla.obj-632037765National Library of Australia
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~
The wireless weekly : the hundred per cent Australian radio journal
Page 3nla.obj-632037899National Library of Australia
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'
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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
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The wireless weekly : the hundred per cent Australian radio journal
Page 4nla.obj-632038025National Library of Australia
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~
The wireless weekly : the hundred per cent Australian radio journal
Page 5nla.obj-632038152National Library of Australia
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,
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'.!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
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Page 6nla.obj-632038281National Library of Australia
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
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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
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\\ 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.
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The wireless weekly : the hundred per cent Australian radio journal
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WIRELESS WEEKLY
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The wireless weekly : the hundred per cent Australian radio journal
Page 8nla.obj-632038545National Library of Australia
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
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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·-.
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The wireless weekly : the hundred per cent Australian radio journal
Page 9nla.obj-632038677National Library of Australia
~ 1,I.,.,. ,\pril :!:it lo, l'I:!~ WIRELESS WEEKLY
Adding Radio Frequency lo your present Set
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The wireless weekly : the hundred per cent Australian radio journal
Page 10nla.obj-632038809National Library of Australia
R WIRELESS WEEKLY
Adding 1t,adio Frequency to your present Set Conllnu<d f,om pag< 1
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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.
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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
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•• s,-t rk l.UXL'. , u ... tiu;: mn th111~ frorn £7."i lo t~.in, J10 nw· i-.: lilt!'!\' to lie, wltiu,ut mu•.
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CATALOGUES ON A!"PLICATION
The Wirelen Supply Centre-of Sydney -is Swains, ll9a and 123 Pitt Street
II
II
The wireless weekly : the hundred per cent Australian radio journal
Page 11nla.obj-632038932National Library of Australia
F 11 \pril :!:.1)1. 1'1:!l WIRELESS WEEKLY 9
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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
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4.01~1 " '""' 25 lhflll 18 6
386 GEORGE STREET Br1:uid1 1n oll '• 1
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The wireless weekly : the hundred per cent Australian radio journal
Page 12nla.obj-632039061National Library of Australia
10
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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
The wireless weekly : the hundred per cent Australian radio journal
Page 13nla.obj-632039191National Library of Australia
1 , \pr1l :!:ith, 111:! I WIRELESS WEEKLY
Honeycomb Coils
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The wireless weekly : the hundred per cent Australian radio journal
Page 14nla.obj-632039329National Library of Australia
12 WIRELESS WEEKLY Friday. Apnl :!!irh. Ht:!.J
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i Broadcast Receiving Sets and ! License Forms
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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.
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The wireless weekly : the hundred per cent Australian radio journal
Page 15nla.obj-632039454National Library of Australia
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"
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r1i5 200 11\ 21 l'i :!J0-7?.fl ZI ~ ,l:IO lll'lO ~6 ~ 1"1-HW ::t,
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Kl 100 1no z,. ~oo 1.00 750 31•1 '" ·,on
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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,~
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Ll11·u1-,.o1..
Fee: 2/- per lesson ; , '\n lLllt. tn ,, iO ,,.m
IJ
\I HI I\ J IO!\ '\ ,01 111 \I , IRAIH
The wireless weekly : the hundred per cent Australian radio journal
Page 16nla.obj-632039582National Library of Australia
J I
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., - -- ~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.
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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
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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
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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------~
The wireless weekly : the hundred per cent Australian radio journal
Page 17nla.obj-632039719National Library of Australia
I , '" .\pnl :!~tit. W:!~
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PEERLESS Head Phone . ..,.
i!tJf/(I Ohm.~
WIRELESS WEEKLY
.\\IL \LEC. m:c TOH
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The Haron Electric Co. I "1111 Houd. :,1111 J11n1•1ion
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~OR
SUPPLIES Ill\ II I II) L"'I 11'1:-, ll<lll\\ 'lit.Ill'<
!
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N TH. 1931 ,
•.• -----------.•
Complele Stt of 'Porl! lo make the aboce Se/ 36/6
RADIO HOUSE 619 George Sireel, S:ydney
·---------------~----·---------------------~
The wireless weekly : the hundred per cent Australian radio journal
Page 18nla.obj-632039844National Library of Australia
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
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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
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\II i·umm11nil":t1ion.. l.Jl,(\u I, 1d it~, ...... ,.11 tlw Hu11 "-1•rn·1a > \\ Ii B.ult•t. \\"alJan• ""L ( ,1nn1rd.
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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..;,
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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•
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B:tkt•ntc ( 'onrlC'nS("f rHnl-1!, Eae>h • • I !1
J 0 N E S York Screet, Sydnev
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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
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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 ~ ()
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\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
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i I ............. -........ , ANNOUNCEMENT , ! l ..................................................................................................................................................................................................... -.... _ .......................... ........ i .................................... ,
American Radio Apparatus Wholesale Only
PACIFIC ELECTRIC CO. SECOND FLOOR. KTNCOPPAL CHAMBERS
No. 38, MARTIN PLACE - SYDNEY
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\\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 )
- -------- - ----------
The wireless weekly : the hundred per cent Australian radio journal
Page 22nla.obj-632040369National Library of Australia
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
The wireless weekly : the hundred per cent Australian radio journal
Page 23nla.obj-632040496National Library of Australia
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
-:~----
The wireless weekly : the hundred per cent Australian radio journal
Page 24nla.obj-632040620National Library of Australia
"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