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

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INDEXContinuedPAGEGrimes, DavidPAGE367PORTRAITSHeerman, Emil 288Wallace, John . . 29, 97, 159, 218, 286, 372 . .Gunn, Ross 40(*Portraits in "The March of Radio")Harriett, D. E.. . . IllAhkla, Trixie 373Henney, Keith 46, 92, 165, 227, 290, 341Atkinson, Eva Gruninger 30Jones, Frank C 24 *Baker, L. S 142Blackford, Frank 30Kay, JulianKing, R. W364Blight, Arthur 3075Bushman, Annette R 287Lawton, A. TLoughren, A. VCoates, D. R. P 289299 "Cohen, Louis 269238 Combs, R. H 30Cook, Lucile 288Miessner, B. F 302 Cook, Nell 288Millen, James 20, 86, 143, 199, 363 *Crandall, Irving Bardshar 141Mithoff, Warren T 148 Crosley, Powel 288Pfaff, Ernest R 280Damonte, Jerome 160 .Dobbs, Hugh Barrett 218Dozier, Lydia 288Reich, Herbert J... 229Rhodes, Howard E 43, 157, 213, 232 *Edwards, C. P... 142Runyon, C. R. Jr 171 Edwards, C. P 346Shalkhauser, E. G 60, 126, 255, 326, 398Grimes, David 367Stokley, James 263Harper, Clair.. 289*Hartley, Herbert 268Hogan, Park VPAGE221Holub, Josephine 30Katzman, Louis 99King, Mildred '. 160La Pee, Honarine""Lindbergh, Charles . . .30344McKee, Mickey 219McLeod, Keith 30Mallory, Walter. 221*Manley, Edward 347*Manson, Ray H.'. 82Olson, Vivian 289Pearson, James 30Pellettieri, Vito 160Rianhard, Conrad 29*Rice, Martin P 344Shannon, Marguerite 289*Shinn, B. L 18*Shumaker, Edward E 19Stockman, Edward 160*Waller, Alfred E... 207Watt, Lillian 160Weagant, Roy A 237Wessell, Isaac 286White, Lee 289Copyright, 1927, byDOUBLEDAY, PAGE & COMPANY
RADIO BROADCAST ADVERTISERALUMINUMBOX SHIELDSMade of "Alcoa Aluminum'Consist of:Top, Bottom, Sides4 Extruded Corner Posts8 Aluminum ScrewsEETING the highest radio standards shipped toyou in the most convenient knocked-down formfor easy assembly These Box Shields are madeof heavy aluminum (.080" No. 12 B. & S.) and are supplied5"x9" x6", which will cover most requirements. Ifthe size does not meet your exact needs, change it Aluminumis easy to work.CT'HE ordinary typeof low resistance volt'J. meter cannot be used to measure the out'put of battery eliminators because mosteliminators cannot deliver sufficient cur'rent to operate the voltmeter and stillmaintain their voltage. For this serviceWeston now offers a special voltmeterwith an exceptionally high self-con'tained resistance of 1,000 ohms pervolt Model 489 Battery EliminatorVoltmeter. This new instrument,because of its high resistance, re'quires a current of only one milli'ampere to produce full scale de'flection. It is made in twodouble range combinations of200/8 and 250/50 volts. Thelatter range can be suppliedwith an external multiplierto increase it to 500 volts.Ask your dealer or ad'dressManufacturers can obtain these shields made to their exactspecifications or they can secure the necessary corner-postmoulding and sheet to manufacture under their own supervision.Those who use Aluminum have ample proof of its advantages.Insist on "Alcoa Aluminum," ask your dealer orwrite us."ALCOA ALUMINUM" is furnished to manufacturersin the following forms:ALUMINUM INSheet: for shields, chassis, variable condensers,cabinets.Panels finished in walnut and mahogany.Die and Sand Castings.Screw Machine Products.Foil for fixed condensers.High Purity Rods for rectifiers.Stamping, rod, wire, rivets.EVERY COMMERCIAL FORMALUMINUM COMPANY of AMERICA2320 OLIVER BUILDING, PITTSBURGH, PA.ALUMINUM ItWESTON ELECTRICALINSTRUMENT CORPORATION179 Weston Avenue, Newark, N. J.STANDARD THE WORLD OVERWESTONPioneers since 1888
Page 1 and 2: RADIO BROADCASTVOLUME XIMAY, 1927,
Page 3: INDEX.ContinuedPAGEThreshold of Hea
Page 7 and 8: RADIO BROADCAST ADVERTISERfIA REALA
Page 9 and 10: :RADIO BROADCASTVOLUME XI NUMBER 1M
Page 11 and 12: MAY, 1927WITH MACMILLAN TO THE ARCT
Page 13: THE MARCHInterpretation of Current
Page 16 and 17: 18volved the law in precarious lega
Page 18 and 19: The ElectricalA Non-Technical Expla
Page 20 and 21: 22 RADIO BROADCAST MAY, 1927type of
Page 22 and 23: A Balanced Short-Wave ReceiverA Des
Page 24 and 25: What About the A BatteryThe Importa
Page 26 and 27: 28 RADIO BROADCAST MAY, 1927The cas
Page 28 and 29: 30 RADIO BROADCAST MAY, 1927NO STRA
Page 30 and 31: 32 RADIO BROADCAST MAY, 1927from th
Page 32 and 33: 34 RADIO BROADCAST MAY, 1927the ave
Page 34 and 35: AS THE BROADCASTER SEES ITDrawings
Page 36 and 37: 38 RADIO BROADCAST MAY, 1927Interes
Page 38 and 39: Some Facts About Coil DesignThe Osc
Page 40 and 41: 42 RADIO BROADCAST MAY, 1927Shows e
Page 42 and 43: 44 RADIO BROADCAST MAY. 1927The fil
Page 44 and 45: ''Measuring TubeCharacteristicsA Pa
Page 46 and 47: 48 RADIO BROADCAST MAY, 1927MUTUAL
Page 48 and 49: 50 RADIO BROADCAST MAY, 1927whose b
Page 50 and 51: RADIO BROADCAST ADVERTISERThe Radio
Page 52 and 53: 54 RADIO BROADCAST ADVERTISERA Bett
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56 RADIO BROADCAST ADVERTISERNo. 94
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.58 RADIO BROADCAST ADVERTISERTJour
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60 RADIO BROADCAST ADVERTISERMire's
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''. ..RADIO BROADCAST ADVERTISERin
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Radio Broadcast - 1927, May - 61 Pages, 4.9 MB ... - VacuumTubeEra

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