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TELEVISION RADIO'S GREATEST MAGAZINE RAWAVISION NM IND la A BROADCAST ENGINEER'S CHRISTMAS REVISION RADiovi5I0N www.americanradiohistory.com tiRlf5(1) 13111YS TiniS MARVELOUS 13 TUBE BALL ELECTRIC RADiO Complete With SPEAKERan d ully guaranteed /3 T U. ou GEUeliea1ecPeoúi/ 'This is the MEL -O -RAD humanized tone, 19 A radio set manufacturer, a tube The result is the most phenomenal inches high maker, and a producer of cone offer ever made in the history of MAGNETIC CONE SPEAKER speakers, all well and favorably radio -an 8 tube all electric, one dial matched to every receiver. known throughout the industry for control radio with all necessary tubes the quality and efficiency of their and a life -like reproducing magnetic products, have combined to make it cone speaker complete with nothing possible for everyone everywhere to else to buy, ready to plug in and own an electric radio. They have operate, for only $62.50, less than the organized their own selling agency, regular retail dealer's price for a eliminating distributors, jobbers and radio set alone, and-the entire out- dealers, and pass the savings along to fit is absolutely guaranteed. the public. Set, Tubes and Speaker Matched for Perfect Performance. Before shipment, each and every tube The receiver itself is a thing of beauty is thoroughly tested and matched for the size l9% by 12.4 by 18% inches, housed set in which they are to be used. The in a most attractive Aquatex metal cabinet same test is given to the magnetic cone which harmonizes with the furnishings of speaker, so that the complete outfit, the any home. One illuminated dial simplifies set, the tubes and the speaker are seien- operation and brings in station after station, tifically matched for the most perfect re- clearly, distinctly and with all the volume production of voice and music. desired. Satisfaction Guaranteed or Money Refunded. Take advantage of this unusual radio offer simply plug into your electric light socket, turn now. Send us your check or money order and on the switch and you will hear a most perfect complete outfit will be shipped to you ready for radio performance. Order your Melorad Radio immediate operation. There is nothing else you Outfit today and if after two weeks you are not need to buy. Everything you need is included perfectly satisfied. just say so and your money at our more than 50% off list price offer. will be cheerfully refunded. Here's What You Get. ^ Mail This Coupon Order Now One Melorad 8 -tube All Electric Radio Receiver with Phonograph Pick -up, Regular Retail Price $ 75.00 Artee Radio Sales & Mis. Corp., Eight Guaranteed Tubes as follows: Five 226 -A -C, One 227 A -C, 116 Broadway, New York City, N. Y. 171 money order One -A and One 280, Regular Retail Price 24.50 Enclosed find rh , for =6:.50, for which One Magnetic Cone Speaker, Height 19 Inches, Regular Retail Price 25.00 please ship coo one 8 -tube All Electric Melorad Radio Receiver complete with all nessary tthes One Complete Aerial Kit, including Approved Lightning Arrester 2.50 and magnetic rune trialer. it is that if after two weeks trial I am notrperfectlyperfectly .satis- Total Regular Retail selling Price $127.00 fied. I may return the outfit and my money will Our Direct from Factory to Public Price $ 62.50 be refunded. You Save (MORE 50 THAN per cent) $ 64.50 Name Street No. Artee Radio Sales & Mfg. Corp., Town and State 206 Broadway, New York, N.Y. If you desire further particulars check here fl www.americanradiohistory.com Radio News for Januart, 1929 609 Send Coupon Below for FREE Radio Idea Book REDUCE STATIC BY MARVELOUS. NEW METHOD asy Ways to Make 39-9 an hour in Your ¡pare /ime in RADIO Each of these plans, developed by the Radio Association of America, is a big money- maker. Set owners everywhere want to get rid of static, to have their sets operate from the electric light socket, the tone improved, and the volume increased, and trans- formed into single -dial controls. Phonograph owners want their machines electrified and radiofiéd. If you learn to render these ser- vices, you can easily make $3.00 an hour for your spare time, to Earned Over $500.00 say nothing of the money you can make installing, servicing, repair- In His Spare Time ing, building radio sets, and selling supplies. Frank J. Deutsch, Penn.: "I bare made over $500 out of Radio in Over $600,000,000 is being spent yearly for sets, supplies, service. You my spare lime. Yours is a great can get your share of this business and, at the same time, fit your- plan for ambitious men." self for the big -pay opportunities in Radio by joining the Association. A Radio Engineer In One Year Claude DeGrares, Canada: "I Join the Radio Association knew nothing about Radio tchen .1 joined the Association a year ago. I am now a member of the of America engineering staff of the DeForest A membership in the Association offers bigger pay for you. A membership need Company and my income is 225% you the easiest way into Radio. It will not cost you a cent! greater (han at the time I joined. enable you to earn $3.00 an hour up- The Association will give you a com- wards in your spare time -train you to prehensive, practical, and theoretical Doubles Income install, repair and build all kinds training and the benefit of its Employ- In 6 Months of sets ment Service. -start you in business without capital You earn while you learn. W. E. Thon, Chicago: "You have Our cooperative plan will make it possi- an excellent plan. Six months or finance an invention- train you for ble for you to establish a radio store. the $3,000 to $10,000 big -pay radio posi- after I enrolled I secured the You have the privilege of buying radio managership of large Radio store tions - help secure a better position at supplies at wholesale from the very first. and doubled my income." ACT NOW -If You Wish the Radio Association of America Dept RN -I 9513 Ravenswood Ave., Chicago, III. No -Cost Membership Plan Gentlemen: Please send me by return mail full details of your Special Membership Plan, and also copy of To a limited number of ambitious men, we will give Special Member- your Radio Idea Book. ships that may not - need not -cost you a cent. To secure one, write today. We will send you details and also our book filled with dollars- and -cents radio ideas. It will open your eyes to the money -making possibilities of Radio. Name. Radio Association of America Address 4513 Ravenswood Ave., Dept. RN -1 Chicago, III. City ____ State P 1, cr su ç ;; it .in RADIO NEIi-S www.americanradiohistory.com 610 Radio News for January, 1929 \\ 'ANE WS Volume 10 January, 1928 Number 7 HUGO GERNSBACK, Editor -in -Chief ROBERT HERTZBERG, Managing Editor C. P. MASON, Associate Editor BERYL B. BRYANT, Laboratory Director C. WALTER PALMER, Director Information Service Contents of This Issue "Mysteries" of Radio ,P For the Beginner-The "Blonpless" One - By Hugo Gernsback 619 Dial, Two -Tube Receiver 642 Human Radio Reflectors, or Everyone Some Hints on the "Junk -Box" Receiver 646 His Own Aerial A. Binneweg, Jr. 620 -By The "Lamp- Socket Five" -A Simple A.C. Automatic Receiver "Listens" for "SOS" Set - By Beryl B. Bryant 647 (Pictorial) 622 End of Monthly Constructional Prize Radio Does Not Change the Weather 6M By B. Francis Dashiell 623 Contest What's New in Radio 626 Radio Wrinkles 652 Television -The Latest Developments in On the Short Waves 654 the Field By Robert Hertzberg 630 New List of Broadcast Station Calls 656 High Frequencies for Color Television RADIO NEWS Laboratories 658 C. Gleason 632 By Sterling The Radio Constructor's Own Page Giving Television the "Last Touches" By Himself 660 By C. P. Mason 634 I Want to Know By C. W. Palmer 661 637 New Television Systems (Pictorial) Tubes in a Class with the Pullman Cars 668 Some "Foolish" Questions and Their An- swers By H. M. Bayer 638 Review of Recent Radio Literature The Dark Side of Radio By H. M. Bayer 689 13y Dorothy Gernsback 641 qF RADIO NEWS Free Blueprint Coupon 701 In Our Next Number THE A.C. SCREEN -GRID PERIDYNE: The latest titis unit will furnish signals strong enough to fill and most advanced model of a set well -known to a theatre and clear enough to satisfy the most our readers. An all- electric, completely -shielded critical music lover. Uses a 250 -type power tube - broadcast receiver, self- contained in a metal cabi- the largest receiving tube made. Another Free net. High sensitivity, selectivity and superb Blueprint article. tone quality are its features. A fine set for the custom radio builder. Free Blueprints of this set Blueprint Notice will be available. Readers desiring free blueprints ui 'the sets de- A HEAVY -DUTY AMPLIFIER AND POWER scribed in this issue must use the coupon on Page 701. PACK: Attached to the detector tube of any set, No blueprints will be sent without it. RADIO NEWS is published on the 10th of each preceding month. Than are 12 obtained from the publishers. Copyrighted in Germany. Reproduction of articles numbers per year. Subscription price is $2.50 a year in U. S. and possessions. in Germany is reserved for Radio, Berlin 42. Canada and foreign countries, $3.00 per year. U. S. Coin as well as U.