Jute Maga3ine O the Hour Dio If'od Q
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AUGVST 1924- Jute Maga3ine o the Hour WITH WHICH 1S COMBINED dio if'oDQ In This Issue Why Two Sets of Same Circuit Produce Different Results. Experiments in Radio Movies. Breaking Into Radio Without a Diagram. Broadcasting by Repeat - ing-A New Era in Radio. Theory of the New Eng- lish "ilnidyne." Weird Bogies of the Ether. Filtered Audio Stages for Super- Heterodyne. Some Fortunes and Rep- utations Radio Has Made. How French Scientists Are Eliminating Static. J Let OurHooIcups BeyourG \. AN HATTAN ELECTRICAL SUPPLY CO..JNC. MAKERS OF THE FAMOUS N 4TTAN 1D SPEAKER AND RED SEAL PHONOGRAPH ATTACHMENT Oldest and Largest Distributors of RadiçjCooatjon of America 114 SO. WELLS ST., CHICAGO NEW YORK ST. LOUIS SAN FRANCISCO RADIO AGE for A ugust, 1924 The Magazine of the Four 1 flow lAverage X12 a Day in RADIO WORK By Howard Houston Mr. Crosby, I'll have the set there that wasn't "YES, overcrowded? Where Yinstalled tonight... yes, all ready could an ambitious to 'listen -in' ... sure you'll be able to fellow stand a good get Washington by 9 o'clock." chance to earn big Another hour and a half job! And money and getahead? Stenographers, ac- another ten dollar bill in my pocket! countants, clerks - It all seems like a dream. But let all down the line - lee tell you the whole story f rom the every well established very start. line of work was overcrowded, and the pay was small. few ago, I driving a A months was Then Mary said, bread wagon, selling bread to retail "Why not find a new stores. I had a good route though, field?" That was a and if I do say so myself, I had built good thought. The But try men who went into up a pretty good business. the railroad business as I could, thirty -five dollars a week early "cleaned up." was all I could make that job pay. The sane was true I'd be working there now if it of the movie game, been for Mary. We'd been the automobile busi- hadn't ness -but what was "keeping company" for about two the coming field? years, and everything was all set for What new develop- our getting married as "soon as I ment was there that would be earning more money. But looked like a new promising industry? Easy to Learn Radio at Home the old job didn't hold out much We both jumped to our feet. "RADIO." in Spare Time promise -and I didn't see how I was Just a word about this Radio business. Why hadn't we thought of it before? All Some fellows think you've got to have some qualified for any other work that around would pay more. us was the evidence of the tremen- training before you start to learn Radio. dous development of Radio. The broad- That's bunk. I didn't know the difference It was Mary who gave me the tip. casting stations sprouting up all around - between an amplifier and a doorknob before "You can't earn big money," she the rapid increase in Radio Stores -new I started. But let me give you a tip. Don't a radio manufacturing plants - everybody experiment with your radio course. Get the said, "unless you're some kind of talking about the latest radio program. of best. The National Radio Institute has been specialist. Learn some line work Radio had captured America almost over- teaching Radio ever since 1914. The govern- -become an expert in it." But what night -and thousands of men who were on ment recognizes its course by allowing business, profession or trade was their toes were due to make fortunes out of credits to its graduates when they are trying it. for a license, so you see you can be confident Pay you're getting the best training possible - Increases Thousands of Men Needed and that means a lot. Over $100 a Month The very next day after I had finished my I am averaging anywhere from route, I went to several radio business firms. Send for Free Book S75 to $150 a month more than I there "RICH REWARDS IN RADIO" was making before enrolling with "Sure, was an opening. Oh, they'd you. I would not consider $10,000 pay big money -but did you know Radio ?" Incidentally, the National Radio Institute too much for the course. That was my cue. Learn Radio. Become publish a mighty interesting book on Radio. (signed) A. N. Long, a Radio Expert-and I did! They send it out without cost to anyone who 121 No. Main St., wants to It is filled with Well, that really is my whole story. I've learn about Radio. Greensburg, Pa. only followed the least facts, photos, and figures on the Radio In- started. I've path of all resistance. Sort of built up a business of dustry, and tells about its course which Doubles Salary my own installing, building, and repairing quickly prepares you right at home in spare 1 can very easily make double radio sets. Any small job pays me least time for one of the big pay positions in Radio. the amount of money now than at Take my advice and Mary's send before I enrolled with you. Your $5 -and usually $10. I can easily make -and course has benefited me approxi- for that, no matter how little you know of from $50 to $100 a week more as I mately $3,000 over and above -and Radio, or what your plans are. Just mail what j would have earned had I get my work systematized. not taken it. T. Winder, the coupon for it now. Address the National 731 Bedford Ave.. What Mary and I have got to decide after Radio Institute, Dept. 53HA, Washington, Grand ,junction, Colo. our honeymoon -oh, yes, we are soon hav- D. C. ing a very quiet wedding -what we must From $15.00 to $80.00 a Week deckle after that -is which end of Radio I NATIONAL RADIO INSTITUTES, - will he best. You see, there of Dept. 53HA, Washington. D. C. Before I you I are dozens enrolled with Please send without obligation was making a week on n different kinds of work in this field, it's so me cost or your Sly Free Book "Rich Rewards in Radio," which tells farm. Now, I earn from $2.080 to big. I've already had several offers -one all about in Radio, and how S4,420 a year and the work is a the opportunities to take charge of a radio department, an- spare time study at home will qualify me for a hundred times easier than before. paying radio Also Since a little a other with a broadcasting big position. full details on graduating over station, another your Free Employment Service. ( year ago, I have earned almost to give radio entertainments, and a good $4,000 and I believe the course will be worth at least S100,000 offer as superintendent of construction in a Name Age.... to me. radio plant. What we want to decide on is (Signed) George A. Adams, which will not only pay the most money now Address Route 1, Box 10, but will lead to the most rapid advancement Tamaqua, Pa. City State 1 in the future. - Always .11errlirui RADIO AGE Il'hes Writing to Advertisers 2 RADIO AGE for August, 1924 The !Magazine of the flour 0 a ODQ gaff A Chat With the Editor The Magazine of the Hour Established March, 1922 HE most modest- appearing WITH WHICH IS COMBINED departments of a magazine like RADIO AGE usually are the most valued in the minds of the qddi1opcs readers. This was especially evi- dent recently, when M. C. Rrilliams, Volume 3 ' AUGUST, 1924 Number 8 of Rantoul. Ill., wrote us he re- ceived 1,180 letters within ten days after the June RADIO AGE ap- CONTENTS peared on the news- stands, because of Page the publication of one of his hookups in the "Pickups" section. The Invisible Circuit 7. Just 1,180 readers By Frank D. Pearne thought enoumlt of Mr. Williams' How Soon Have Radio Movies short Will We ' article to write him immediately By S. R. Winters and ask for more information. We Breaking Into Radio \Without a Diagram 1 I have yet to learn the total number By Brainard Foote of readers who have communicated Broadcasting by Repeating -A New Era 1: pith Mr. Williams since the Tune The New English 4- Element Tube Circuit 1, issue. By John B. Rathbun To augment RADIO AGE'S Weird Bogies of the Ether 1q powerful influence over followers By Carl H. Butlnan of the latest and best in radio de- Filtered Audio Stages for Heterodyne 21 velopment, we are continuing our Radio is No Longer "Seasonable" 25 policy of keeping the "fans" in- By Robert J. Casey formed on the most recent discov- Some Fortunes and Reputations Radio Has Made eries and theories in the scientific -and Other Studio -Land Features 24 -29 field. In this issue, which has not An Audio Amplifier Without an A Battery 30 been decreased one iota in interest By Brainard Foote because of the presence of Summer - Radio in Other Lands 32 time, especial attention is paid to now Radio on the Farm 35 plans under way for circum- navigating the globe with radio. Radiotorials .37 Last month we started a series Pickups and Hookups by Our Readers 38 on this subject by delving into the With Radio Manufacturers 44 and 64 mysteries of short wave transmis- New and Novel Radio Patents 46 sign and reception.