BURGINPI-IONE Wireless Receivers Australia's Best by Test
Total Page:16
File Type:pdf, Size:1020Kb
WIRELESS WEEKLY Page One Clarke's '' ..,,t\ TLe.4§ '~ Coil Stand~ BRITISH M:ANUF ACTURE. Our Coil Stands in the two and three-way horizontal types are fitted with Patented Micrometric Adjustment, yielding perfectly even slow move ment and preventing the falling over of the moving coils. No fear of missing carrier-waves owing to a too quick movement of the coiL They are suitable for panel mounting, the plug insets being set at standard centres and all th2 fittings are nickel-finished with a best quality ebonite knob. 11JS HIGHEST IN EFFICIENCY THE KING OF Co IJLi ~~AH ·wave-Lengths Covered ~ Minimum Self-Capacity-Maximum Inductance-Least Resistance to High Frequency Currerits-Greatest JJ...ir Spacing. ASK YOUR DEALER FOR OUR COMPONENTS OR CONSULT THE GENERAL TRADING 70 PITT STREET, SYDNEY. Phones: BW 6938 and B 4917. Sole Australian Distributors. ~~ BURGINPI-IONE Wireless Receivers Australia's Best By Test At 110 time has any receiver stooc1 a way from it&' fielcl of competitors more sh:uply in pmnt of quality than c1oes the present ''Burginphone'' models. Note the wav the "BURGINPHONE" is built-no clis· appointing evidence of c hrn pening, no huniecl ,,-orkmanship -it's· a quality receiver tluo·ugh an cl through, and it looks it! All tlrnt the eye sees in its app:arnnce of custom-built beauty, its' better equipm 0 11t, its many engineering feattues, is confirmed by the brillianey of the rnnchine 's perform ance. The '' RCRGI::-fPHONE'' traclc mark is virtna1ly a guar :mtee of clepenrlability, of intrinb'ic worth, of prn.ctirnbility, Jlilanufactnref1 in Australia, becuuse every "BURGTKPHONE" product is s:·ientific in for Australians, by principle ancl is not marketccl until ful'y tested by com AUSTRALIANS. petent Engineers. BURGIN ELEC RIC co. LTD. 340 KENT STREET. SYDNEY Box 734, G.P.O. 'Ph.ones: City 141; City 9886; M 3069. Page Two ~- WIRELESS WEEKLY Friday, July 16, 19 ~ ~::: [~~·~ No. 1915. EVER READY FOUN- Ever-Ready Electric ·,. TAIN PEN LAMP. Torches with Bell~ Neat and portable - ready for use at any time. Carried. in the month reflecto:rs"_-~nei -~,~ same manner as a, fountain pen. !pare Bell container~; Light is !produced by a slight pressure on the clip. Length 5i ins. Weight 2i ozs. Com~~~~i~~ Pxice . 4/- complete N"o. 1548 BM .. 12/3>c'.' -~i-;- No. 1551 BM 3 No. 2015. EVER READY Cells x 9! .. SAFETY TORCH. No. 1552 BM K A new idea in pocket elec 9! 00 15/9 tric torches - absolutely fool proof. When light is Spare Battery, required remove end cap, reverse it and replace it in No. 1547, each the tube. When light is no longer required reverse No. 1, each the operation. No switcll to get out of order. Finish No. 1, each ed best nickel plate. 5i x 15/16 ins. Weight 4 ozs. Price 3/9 complete EVER-READY EVER-READY POCKET LAMPS. TORCH BATTERIES I ~,~ From Hld. Each LIJ Upwards Ever-R<'ady Electrical EVER-READY ELECTRIC No. 2082. No. 2080. Torchee, Leather HAND LAMPS WITH Leather covered and Covered Leatherette Covered DRY BATTERIES. with strongly con~ strong metal body. No. 1283. 'fhe ''Popular'' strncted metal bodies Top and bottom caps_ heavily -pfated solid Hand Lamp is of excellent are heavy nickel No. 1547. fitted with quality and finish. The fit brass top and bot tings are of solid brass tom caps. p'.ated. Solid brass. permanent switch, polished and heavily nickel PrJ.ce . 4/- complete Price 3/6 complete. 8/9 complete. plated. Cases containing iry battery are substantially No. 1839L Price made of selected hardwoods. All Ev<'r-R··ady Ton·he• and Lamps are ohtain complete S/6. Size 5 x 3i x 2! iu. Weight lib. 7ozs. abl" ln•rn Gp·to da1e dPalen; throughout No. 1551. Price Price . 12/9 complete. Austrnlia complete 11/3 . WIRELESS BATTERIES--Write for a copy of the descriptive pamphlet of these, with pri.ces If unobtainable locally write for addrnss of nearest source of supply Britain) LIMITED 163. PITT STREET, SYDNEY riday, July 16, 1926. WIRELESS \VEEKLY Page Three mm""""""'""""""""""""''""'""'"""""""''"""""""'"'"""""'"""'"'"""""""""''""''"""""""""'"""""""""'"""'""'""""'"""'""'""-1 The Crystal with Va.Ive Power NEUTRON CRYSTALS operate a loud speaker. Many owners of crystal sets are now operating· loud speakers with NEUTRON CRYSTALS. Next month 2BL promises to increase their volume. This will enable the owner of a crystal set to operate a loud speaker with sufficient volume to fill the house, provided he uses a NEU TRON. THE CRYSTAL IN THE BLACK AND GOLD BOX WITH THE SILVER CATS WHISKER. FOR SALE AT ALL DEALERS at .. .. , . " .... " ., . , ...... ., " 2/3 AUSTRALIAN DISTRIBUTORS: Louis Coen Pty. Ltd., Melboume. SOLE AGENTS FOR N.S.W.: Ma.nufa.cb.ure:ir§' Procluct:s Sales Company Chams House, 4 Mutin Place, SYDNEY (Tet: B.W. 6753). PROIVIPT SHIPMENTS OF NEUTRONS FROM SYDNEY STOCK. 11mm[J1m1m1111cJ111111111111ii111111111111rn1"~11m1m111c1111111m11rnm1111m11i111m111111cim1mm11rim1111m11ci111111111111~i111111111111rn11111111111ci111111111111cimm111111rnm11111mrn11m111111rn11mm111~<i: They NEVER Vary ! .1 gsby & Coles Ltd® [I Not so much the gloriously pure tone or their astonishing 482 Piu St (opposite Mar em; 11 range nor the Yalve-pO-\Yer (Under Central Station), ji volume, but it is by their -dny in and day-out r:onsistent1y the absolute certainty of get· MULLARD ting perfect and uninterrupted programmes-that these super YALVEEL I crvstals have made new (iL pl~asuTe in Rfldio. rrhey THE MASTER I NEVER vary! ( /f' '" "' All Types in I Stoc~g;~'rom Ii B e 1Y a r e of imitations. I Look for the label ~- Price 1/5 per box, I Obtainable from all \.Vil-e 11 less Dealers, or from: I The L. G. :I Rnssell Lab· oratories, 1-7 Hill Street, . BI RM I NG·. HAM. I MOREY'S PROPRIETARY .LTD., II 98 QUEEN STREET, MELBOURNE. 11 Page_ Four WIRELESS WEEKLY Friday, July .16, j•lllUllllllllClllllllllllllDllllllllF""'"'"'"""""'"'""""'"""""""''"m"'"'"'":i:hltllllllllllllltllllllQllllllltllllllllllllltlllllllllllllltllllllllllllltlll.;1v11cllllllllllllltllllllllllllllCJUllllllH1 i DE. OREST - · ·. e naity ·. ave I Now 13/6 Each ! 'Everywhere ~ H § !D § lllllllllllllllllllUlllllll!lllilllllllllllllllllllllllllll § ~ ~ De Forest Valves ; were · tb.e ! made. ~ Lee De Forest in· ~ vented the valve, so you can rest I assured that De ForMt Valves are the best. DON'T BE MIS- LED. DE FOREST is the "QUALITY .1 TUBE,'' and is correct in design ~ '~ and manufacture. I Filament, 5 Volts t Amp. lllilllllllllllllllllllllllllllllllllllllllllllll!lllllfiffi Filament, 3 Volts .06 Amp. Detector, 12 to 22! Volts. Detector, 16 to 45 Volts. I Amplifier, 45 Volts to 150 Volts. .Amplifier, 45 to 180 Vo.Jts. ~ Fits Standard American Socket. = Fits Stand:ird Americ-:in ~oeket. I !=_ . International Radio Co. Limited ~ 200 Castlereagh Street, Sydney. 91-93 Courtenay Place, Wellington, N.Z. - STATE DISTRIBUTORS: ~ VICTORIA: Alexander Mair & Co., Elizabeth Street, rASMANIA: W. & G. Genders Pty. Ltd., 69 Liver· --=- Melbourne. pool Street, Hobart. · QUEENSLAND: Home Rndio Service Ltd., Courier WEST AUSTRALIA: A. C. McCallum Ltd .. 96 Mn.,..,.ov j5 Buildings, Que-e-n Street, Brisbane. Rt. ... .ao+ -o ..... -..c.,_ (•!lltlllllllllllllf~111111111111r,11;11111••••s;..-.•. ··-----"- July 16, 1926. WIRELESS WEEKLY Page Five CONTENTS Published by Publicity Press Ltd., 71-75 Regent St., Sydney, Australia. 'PhOnes: Redfern 964 and 9S~. Page Managing Editor: E. C. MUJ\'!FORD. Editor: A. W. WATT. Technical Editor: C. W. SLADE. A Long Distance Selected Advertising Manager: J. T. REEDIE. Crystal Receiver The Editor will be glad to consider Technical and Topical Article• of interest to Austo·alian Experimenters. All Manuscripts B.nd Illnstra.· Queries Met by Every tions are sent at the author's risk, and although t:he greatest care will Beginner . 11 be taken to return unsuitable matter (if accompanied by stamps), ths Editor cannot accept responsibility for its safe return. 14 Snbscrip·oion Rates.-Twelve months (52 issues), 13/-, post free. On the Air . ~ri:e ~~~ths (26 issue> 1 6/6. post free. Single Copies 3d. each, or post 2KY 's New Story-teller .. 21 Advertising. Copy must be in the hands of tile Managing, Editor by the Friday preceding each issue. If copy is not received in time, the previous week's advertisement WJ.1 be repeated. j\Tew High Power Station 27 ''Questions. and Answe:rs.'' All requests by :nol=!.-snbscribers calling for technical advice or drawings MUST be accompanied by postal note or Broadcasting K otes 29 stamps to the value of 1/-. A maximum of four questions is allowed. Agents in Great Britain.-The Colonial Technical Press Ltd., Du'1.ley Amongst the Traders .. 33 Honse, Southa.mpt.on Street, Strand, W.C. 2. All accounts should be made payable to Publicity Press Ltd., 71-75 Regent Street, Sydney. Broadcasting . 37 ''Wireless Weekly'' is fully protected by copyright, an<l nothing that appears in it may be reprinted, wholly or in part, without special permission. The use of our articles or quotations from them for any purpose whatsoever is never guthorised. BROADCASTING TO-DAY. to rsturn to Sydney immediately, as his wife wa;~ seriously ill. The message was handed him at ESS than two years ago, experts gave it as their Kempsey in iim2 to permit him boarding the Sydney train immediately. opinion that Broadcasting would always remain prirnarily a means of cheap entertainment, but Country schools are gradually linking up with broadcasting, and, considering the isolated position 11 we may judge from the brief statements in tD.e lay press concerning the various aspects of of a considerable portion of the rural population, it broadcasting, it is apparent that the old order has is beyond question that sooner or later radio must changed, and that its true val'.le must be gauged be adapted to the spreading of education, partly from quite a different angle. because of its tremendous scope, and again, because For instance, medical men are beginning to of its vast appeal to the popu·ar imagination.