Radio age (Jan-Dec 1925)

RADIO AGE for January, 1925 The Magazine of the Hour The Magazine of the Hour Established March, 1922 WITHWHICH IS COMBINED RADIO TOPICS Volume 4 January, 1925 Number 1 CONTENTS Radiotorials 4 First Super Stations Licensed 7 By Robeit D. Heinl Attaining Results with Radio Frequency 9 By Armstrong Perry A Reflexed Four-Tube Neutrodyne 11 By H. Frank Hopkins Headsets — Their Care and Operation 14 By Roscoe Bundy A Six-Tube Super-Heterodyne 15 By Paul Green Getting Started in Radio — Beginners' Section 18 By Edmund H. Eitel Tuning in with the French Radio Fan 20 By C. R. Bluzat An Efficient Portable Set 21 By Brainard Foote How to Make a Station Finder 23 By Felix Anderson Adding Two Stages to the Modified Reinartz ....26 By Frank D. Pearne "What the Broadcasters' are Doing" — Studio-Land Features for the Listener 28-40 RADIO AGE BLUEPRINT SECTION I. The Tuned Impedance Reflex with Two Stages 41 II. A Tuned Plate Regenerative Set 43 By John B. Rathbun Pickups and Hookups by Our Readers 49 Corrected List of Broadcasting Stations... 74 Radio Age is published monthly by RADIO AGE, Inc. Member: Audit Bureau of Circulations. Executive, Editorial and Advertising Offices 500 Tsr. Dearbarn Street, Chicago, 111. Publication Office, Mount Morris, 111. Frederick A. Smith, Editor Russell H. Hopkins, Associate Editor Frank D. Pearne, Technical Editor Louis L. Levy, Circulation Manager M. B. Smith, Business Manager Advertising Director HARRY A. ACKERBURG Eastern Representative DAVIDSON & HEVEY, 17 West 42nd St., New York City Pacific Coast Representative BENJAMIN LEVEN, 582 Market St., San Francisco. Final Advertising forms close on the 20th of the 2nd month preceding date of issue Issued monthly. Vol. 4, No. 1. Subscription price. $2.50 a year. Application madefor transfer of second class entry from the post office at Chicago, Illinois, to the post office at Mount Morris, Illinois Covuriqht. 1925. by RADIO AGE, Ivo. A Chat With the Editor MR. MANTON DAVIS, of the Radio Corporation of America, diverts us with a letter in which he expresses the suspicion (baseless) that advertisers have been led to believe they were advertising in WIRELESS AGE, when, as a matter of fact, they were dealing with RADIO AGE. Mr. Davis even threatens to call out the agile R. C. A. legal department and cut our heads off. RADIO AGE and WIRELESS AGE are two separate and distinct publications, the former published in Chicago and the latter in New York. We do not make this statement because we think an announcement necessary to avert confusion of names so different as these. We make this extremely obvious distinction because we do not want Mr. Davis to think that there is anything in the advertising or editorial departments of WIRELESS AGE that RADIO AGE wants, much less would employ sharp practice to obtain. Radio Corporation of America controls WIRELESS AGE. It is published by Wireless Press, Inc., of New York. RADIO AGE is owned by RADIO AGE, Inc., of which the undersigned is President. RADIO AGE is not interested directly or indirectly in the manufacture or sale of any radio product and is serving as officiai organ for nobody. The writer has been a newspaper editor for a quarter of a century. He was war correspondent at the French front for the Chicago Tribune. He was special correspondent in Russia, China and Japan for the same newspaper for two years after the war. He is now editor of a newspaper radio section, which on one day of each week, has the largest radio circulation in the world. Also he is editor and chief stockholder of RADIO AGE. Most earnestly he hopes that the radio public will not make the error of thinking this magazine has any association with the periodical controlled by our friend with the agile legal department. Editor of RADIO AGE.