Radio Broadcast - 1927, May - 61 Pages, 4.9 MB ... - VacuumTubeEra

RADIO BROADCASTMAY, 1927WILLIS K. WING, EditorKEITH HENNEYJOHN B. BRENNANDirector of the LaboratoryTechnical EditorEDGAR H. FELIX, Contributing EditorVol. XI, No. 1AMOA[G OTHER THINGS...Cover DesignFrontispieceFrom a Painting by Fred }. EdgarsThe Towers of Station WOW, at Omaha, NebraskaWith MacMillan to the Arctic-The March of Radio -What Does the Listener U'ant? Let Him SpeakQuestionnaire: Which Stations Shall Btoad'cast?Objections to the Radio LawThe Question of Vested RightsThe Electrical PhonographA Balanced Short-Wave ReceiverWhat About the A Battery?The Listeners' Point of ViewHow Long Will Radio Broadcasting Prosper?Why a Good Program Was GoodThumb Nail ReviewsFilament Lighting from the A. C. MainsAs the Broadcaster Sees ItOne Explanation of the Plethora of BroadcastingStationsBroadcasting and Social UpheavalsGlad Tidings From the WestAustin G. Cooley"Christian" Mud ThrowingA New Term for "A. C. Supply" UnitsThere Are no Radio EngineersA Survey of Radio ConditionsThe Month in Radio--James MillenFran\ C. JonesEdgar H. FelixJohn WallaceMicrophone MiscellanyCommunicationsWhat the Listener Likes and How He Likes ItSome Facts About Coil Design - The Radio Club of AmericaRoland F. BzersCarl DreherTechnical Operation of Broadcasting Stations(Volume Indicators)Something About Gain ControlRoss GunnPerfecting the B Socket Power Device -Howard E. RhodesMethods of Measuring Tube Characteristics- -Keith Henney"Radio Broadcast's" Laboratory Information SheetsNo. 89 Short-Wave CoilsNo. 93 Audio Amplifying SystemsNo. 97 Circuit Diagram of Tube Tester No. 96 Analysis of Voice FrequenciesNo. oo Loop AntennasNo. 94 The Principle of Re6exingNo. 91 A Simple Tube TesterNo. 95 Storage BatteriesEquipment for the Home ConstructorA Key to Recent Radio ArticlesInternational Short-Wave Test- -10nAn Editorial Interpretation 1526293336404346E. G. Shall{hauser 60Manufacturers' Booklets Available - - 6160V\ T^TH this issue, RADIO BROADCAST starts its sixth year of* *publication. The five years just concluded have seenmany changes in the radio industry and among radio experimentersand fans. American radio magazines of to-day are quitedifferent from those of 1922; RADIO BROADCAST has changedconsiderably, both in physical appearance and in type of contents,since those days. We believe the changes are improvements,for certainly our files are filled with countless letters ofapproval. The aim of Doubleday, Page 6? Company has been topublish the highest class radio magazine possible. This we haveattempted to do, first, in setting the standard of physical appearanceof the magazine where now it is, and secondly, tospare no pains or expense in making our technical material ascompletely accurate and helpful as possible. Two large laboratoriesare maintained in Garden City where practical andtheoretical experiments are constantly under way; and our advertisingpages are carefully supervised."\ X"ANY editorial features in RADIO BROADCAST have given-" -1 the magazine a unique position in its field. The "Marchof Radio" provides an editorial comment and suggestion aboutall branches of radio. "The Listeners' Point of View" standsalone as a national review of broadcasting, particular andgeneral. "As the Broadcaster Sees It" has turned out to be aunique department (prepared, incidentally, by one of the ablestbroadcast engineers in the country) where engineer, programdirector, listener, and general reader alike, may meet. The reviewof current radio periodicals, the Laboratory Data Sheets,the listing of informative manufacturers' booklets, all furnishvaluable information for our readers. Our constructional articlesare chosen carefully for accuracy and greatest help and interestfor the reader. We are at work on an editorial schedule nowwhich holds much for everyone interested in radio in all itsbranches. Unfortunately there is insufficient space here tooutline that schedule, but we prefer to let each issue of RADIOBROADCAST speak for itself in that connection.in its tabulation of advertising lineage1 for March magazines, shows that RADIO BROADCAST ledthe field with a total of 20,621 lines, followed by Radio Newswith 18,930 lines, Popular Radio with 14,872, Radio with12,770, and Radio Age with 4395.IN THE June RADIO BROADCAST, a fine story for the homeexperimenter is scheduled, describing the construction anduse of a modulated oscillator. Other articles deal with shortwaves, the problems of series filament connection for 2OI-A typetubes, how to use new apparatus, technical problems for broadcastoperators and others, and many other features of unusualinterest.WILLIS K.WING.Doubleday, Pagefir Co.MAGAZINESCOUNTRY LIFEWORLD'S WORKGARDEN & HOME BUILDERRADIO BROADCASTSHORT STORIESEDUCATIONAL REVIEWLE PETIT JOURNALEL EcoFRONTIER STORIESWESTDoubleday, Page fir Co.BOOK SHOPS(Books of all Publishes)LORD & TAYLORNEW YORKPENNSYLVANIA TERMINAL (2 Shops)GRAND CENTRAL TERMINAL38 WALL ST. and 520 LEXINGTON AVE.848 MADISON AVE. and 166 WEST 32ND ST.ST Louis: 223 N. STH ST. and 4914 MARYLAND AVE.KANSAS CITY: 920 GRAND AVE. ana 206 W. 47TH ST.CLEVELAND: HIGBEE CoSPRINGFIELD, MASS.: MEEKINS, PACKARD & WHEATDoubleday, Page & Co.OFFICESGARDEN CITY, N. Y.NEW YORK: 285 MADISON AVE.BOSTON: PARK SQUARE BUILDINGCHICAGO: PEOPLES GAS BUILDINGSANTA BARBARA, CAL.LONDON: WM. HEINEMANN LTD.TORONTO: OXFORD UNIVERSITY PRESSDoubleday, Page 5* Co.OFFICERSF. N. DOUBLEDAY, PresidentNELSON DOUBLEDAY, ^ice-PresidentS. A. EVERITT, V'ice -PresidentRUSSELL DOUBLEDAY, SecretaryJOHN J. HESSIAN, TreasurerL. A. COMSTOCK, Assl. SecretaryL. J. McNAUGHTON, Asst. TreasurerDOUBLEDAT, 'PAGE & COMPACT, Garden &ty,Copyright, 2927, in the United Statei, Newfoundland, Great Britain, Canada, and other countries by Doubleday, PageTERMS: $4.00 a year; single copies 35 cents.Company. All rights reserved.