Radio Broadcast - 1925, February - 113 Pages ... - VacuumTubeEra

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New Equipment DE FOREST LOUD SPEAKER A reproducer of good design and quality which compares very favorably with other speakers of the same price range. It delivers good volume on both speech and music, still maintaining good tone quality. Made by the De Forest <strong>Radio</strong> Company, Jersey City, New Jersey. Price $25 ANTENNAPHONE A very neat indoor aerial. It is only necessary to place your house telephone upon the antennaphone plate and connect the lead to the antenna binding post of your receiver. Made by The Antennaphone Co., 90 West Street, New York City. Price $1.00 NATIONAL BATTERY This is a 24-volt unit wet B battery of good construction. The connectors between the several cells protrude above the sealing so that it is possible to tap off at any desired voltage. Made by the National Lead Battery Company, 1704 Roblyn Ave., St. Paul, Minn. u. L. CONDENSER A well made instrument which has a good capacity range. The vernier action, which shows at the back of the condenser, is controlled by the small knc K acting through the center of the main dial. Made by The Jnited Scientific Laboratories, Inc., 92 East 10th Street, New York City THE A-C DAYTON XL- 5 A five-tube set using tuned radio-frequency, detector and audio-frequency amplification. The radio-frequency transformers are of special design. Very satisfactory performance is possible with this receiver. Made by The A-C Electrical Mfg. Co., Dayton, Ohio. Price $115 PERFECTO SOLDERING FLUID A convenient and satisfactory, non-acid soldering flux that insures positive soldered joints. John Firth & Co., 25 Beaver St., New York City
RADIO BROADCAST ADVERTISER 755 d i o FADA Neutroceivcr No. 175-A Mahogany cabinet. Inclined panel and roomy battery shelf. 5 tubes. Price (less tubes, batteries, etc.) $160. Indecision vanishes when you hear the FADA RADIO shopping ends triumphantly when you find the FADA. People who know radio and have conducted comparative tests say that the Neutroceiver is the best they have ever tried. Have the FADA Neutroceiver demonstrated in your home. Listen to its marvelously faithful reproduction. Tune in a distant station yourself loud and clear and see how easy it is. Observe the beautiful cabinet design. You will exclaim: "At last! This is just the radio set I want!" If you prefer a set with self-contained loud speaker, the FADA Neutrola Grand meets your desire in this respect, as in all others. Whether FADA Neutrodyne receivers are the first or the fifteenth make you investigate, they will be your final choice. Through the FADA Neutrodyne your radio wishes become realities. See your dealer. E. A. D.ANDREA, INC., 1581 JEROME AVENUE, NEW YORK FADA Neutrola Grand No. 185/90-A The five-tube Neutrola 185-A, mounted on FADA Cabinet Table No. 190-A. Price (less tubes, batteries, etc.) $270. Tested and approved by RADIO BROADCAST
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RADIO ol. 6, No. 4 February. How Mi
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( , me How Michael Pupin Succeeded
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How Michael Puj3ih' Succeeded "665
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The Way of the Transgressor 667 or
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The Way of the Transgressor 669 ver
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What Reflex Means How One Tube is M
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What Reflex Means 673 might be expe
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The International Radio Broadcast T
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The Listener's Point of View 685 CA
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The Listeners' Point of View 687 SI
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The Listener's Point of View 689 [p
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f syncopation The Listeners' Point
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! of ; an Some Experiences With the
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The March of Radio 695 communicatio
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The March of Radio 697 tial product
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The March of Radio 699 PROMINENT FI
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The March of Radio 701 It might be
Page 45 and 46: The March of Radio 703 year the Phi
Page 47 and 48: The March of Radio been bothered by
Page 49 and 50: Who Owns Our Broadcasting Stations
Page 51 and 52: Who Owns Our Broadcasting Stations
Page 53 and 54: "NOW, 1 HAVE FOUND. . A Department
Page 55 and 56: ' . THIS "Now, I Have Found. 713 JO
Page 57 and 58: . "You Our Busiest Dav 7'5 Follette
Page 59 and 60: THE LOSS STABILIZING R. F. CIRCUITS
Page 61 and 62: eceiving In the R. B. Lab. 719 It i
Page 63 and 64: In the R. B. Lab. 721 This resistan
Page 65 and 66: How to Build a One-Dial Reflex Rece
Page 67 and 68: How to Build a One-Dial Reflex 725
Page 73 and 74: THE ANTENNA AT STATION 5IT, BIRMING
Page 75 and 76: What We Are Doing With Broadcasting
Page 77 and 78: What We Are Doing With Broadcasting
Page 79 and 80: A Winder for Small Inductances How
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Page 83 and 84: A Winder for Small Inductances 74'
Page 85 and 86: Problems of Receiver Design 743 sho
Page 87 and 88: Our HAT , Readers Write Us A Word f
Page 89 and 90: The Grid 747 structed as a portable
Page 91 and 92: RADIO BROADCAST ADVERTISER 749 Set
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Radio Broadcast - 1925, February - 113 Pages ... - VacuumTubeEra

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