Radio Digest (Oct 1923-July 1924)

RADIO DIGEST — Illustrated May 10, 192Jf 11 STATIONS, LINKED, BROADCAST C00L1DGE PRESIDENT'S VOICE CARRIED TO PUBLIC SCHOOLS WHO SENDS LOZENGES TO WLAG SOPRANOS? Long Distance Phone Lines Connect Plants with Executive's Microphone in New York NEW YORK. — Speaking before mem of the Associated Press in the banquet hall of the Waldorf-Astoria hotel e of President Coolidge was recently heard by millions of people throughout the United States, urging a new conference of world powers to bring about further disarmament. The participation of the people in the event of his speaking was made possible through the broadcasting of the speech by eleven powerful broadcasting stations in this country, WEAF, WCAP, WMAQ, YVJAR, WNAC, WFI. "WCAE, KSD, WDAF, YVBAP and WW J. Each of the stations was linked to the : ophone in the banquet hall by long distance telephone lines which brought speech through without loss in volume, or clarity of tone. People Crowd About Receivers In clubs, schools, homes and offices, wherever a Radio set was located, a group of people were to be seen listening to the he discussed the soldier . s, governmental economy, peace, and reparations solution worked out by Gen. Charles G. Dawes and his associates. Many of the schools had receiving sets equipped with loud speakers so that all the pupils could listen to the speech. These were installed by the pupils themselves. So intent were they that when the band played the "Star-Spangled Banner," just before President Coolidge spoke, everyone sprang to their feet and stood at ntion until the conclusion of the anthem. MINNEAPOLIS. — Day after day they come, little red boxes full of throat lozenges and addressed: "Sopranos, Station WLAG." And there it is. Nobody knows from whence they come. Whether the Bender is a friendly soul moved by compassion for the soprano singers or a critical listener who finds qualities in the voices of all sopranos that suggest the soothing effect of the lozenges. Radio Gets Undeserved Knocks as Executioner Electrocutions Often Unjustly Laid at Door of Ether Waves RADIO GETS CREDIT FOR SONG'S SUCCESS NEW YORK . — "Swanee River Rose," the waltz ballad by Frank Davis and Sam Braverman, is proving to be a big seller, thanks much to broadcasting. The song is of a good harmony type and has an appealing melody. "Swanee River Rose" was originally "plugged" by Radio by Frank Davis, with the result that a large demand for it was created in New York state and vicinity. IMPROVE SUMMER RADIO (Continued from page 1) has the industry been geared to give a higher standard of service to the public. Presidential Issues Will Be on Air "In the first place," said Mr. Mallory, "the Democratic national convention in June in New York and the Republican national convention during the same month in Cleveland, will place the Radiophan right in the thick of the pre-election campaign. For the first time in the history of the United States virtually millions of people will 'attend' the national conventions. They will be able to follow each issue as it is debated on the convention floor; they will hear the nomination speeches of 'favorite sons'; the thunder of applause for popular candidates— the music, the clamor and excitement of the impromptu parades which will spring up from time to time on the convention floors. Summer Reception Greatly Improved "Immediately after the conventions will come the Presidential election campaigns. There again Radio will play an epochmaking part, for it is clear that every candidate is preparing to broadcast through the air his appeal to the electorate. "The fact that there are more Class B high power broadcasting stations in operation this year than last year, is assurance to the Radio audience that reception during the hottest summer months will be vastly better. The new allocation of wave lengths, particularly among the larger stations, it is generally agreed, will eliminate much of the interference that resulted from conflicting wave lengths. Events of Summer Daytime Events "Then, too, many of the stirring events that will be broadcast by Radio this summer are daytime events. This means clarity of reception. Not only the national conventions, but most of the great sporting classics and other outdoor events throughout the country will be held during the daytime. So much for this point. "Another factor that will make for reception this summer is the striking improvements noted by our technical committee in the new receiving apparatus now on the market. It is impossible of course, to measure mathematically the advances made by the Radio manufacturing industry in the course of one year. But this may be said: One of the results of the many notable improvements made in receiving sets is that daytime reception this summer will be better than night reception in previous years. This ensures that the splendid program of sports, music, speeches and entertainment planned for this summer from many broadcasting centers will be received with great satisfaction by the millions of Radio listeners in the United States." New Broadcasting Station Opening in the Southwest HOUSTON, TEX.— The Houston Dis :h is having made what will be one of .;> rarest broadcasting stations in the est and which it is reported, will m.OOO. ' WASHINGTON.— Radio, unfortunately and unjustly, frequently gets a "black eye" through improper headlines and sometimes badly written stories in the daily press. The headline — "Electrocuted by Radio", which recently appeared in a local paper, was not only misleading, but wrong according to the brief story itself. In the first place. Radio itself cannot electrocute anyone, except in case of tiansmitting stations where high power supply is used. At the receiving end, Radio is not dangerous. It is even doubtful if the high frequency power put into transmitting antenna at big commercial stations could kill, although it is admittedly dangerous to touch bare wire, the motor-generator, bus bars, or the transmitting circuits, as a shock or burn might result. Only at high-powered, low-frequency stations could serious results occur. Receiving sets are not dangerous, according to all well-informed experts, unless of course they are charged by out side electric power. Referring again to the headline and the story of the unfortunate lad, who, it developed, let his antenna come into contact with an electric wire charged with 2300 volts, it is readily seen that he was not electrocuted by Radio but by an electric power line. It would have been the same had he been stringing wire clothes line, although his death would not have been charged to a clothes line. An autoist who stalls his machine on a railway track an 1 is killed by an express train is not said to have been killed by an automobile. illll|[|llilllllllllllllllllllllllli;i,i:;:i;;;;,i. ,i Just Trust Your Ears Pastor Puts Loud Talker on Altar and Entertains WASHINGTON, D. C. — A novel stunt was successfully tried out by the Rev. Walter F. Smith, Pastor of the Park Yiew Christian church here, when he dismissed his parishioners from Sunday night service and placed a loud speaker on on his altar and entertained his congregation with a concert. After the regular service was over he invited the congregation to remain for a Radio concert. The congregation heard an organ recital from New York. It was WEAF broadcasting through WCAP. Few of the congregation left before the concert was over. CONTENTS Radio Digest, Illustrated, Volume IX, Number 5, published Chicago, Illinois, May 10, 1924. Published weekly by Ratlin Digest Publishing Company. 510 North Dearborn Street, Chicago, Illinois. Subscription rates, yearly, Five Dollars; Foreign Postage One Dollar additional; single copies Ten Cents. Entered as second-class matter at the postofflce at Chicago, Illinois, under the Act of March 3, 1879. "All the Live News of Radio" 1 to 10 Before They Thought of Mikes, an announcer puzzle S Why Don't I Hear Los Angeles Every Night? Sets Not Always to Blame for Non-Reception, by Wilson N. Durham 11 Avoiding the Hum in the Green Circuit, by Myron Green 1Z What's Wrong with Your Receiving Set, Chapter XI — Tuning the Neutrodyne Receiver, by Peter J. M. Clute 13 An Evening at Home with the Listener In, a chart to show when to listen in for your favorite stations 14 Advance Programs for the Week at the Larger Stations 15 to 18 Thirty-Minute A-B-C Lessons for Beginners, Chapter VIII— The Key to Radio Circuits, by P. E. Edelman 19 Editorials ; Indi-Gest ; Condensed by Dielectric 20 How to Construct a Super-Heterodyne Receiver, Part II — List of Parts and Panel Layout, by Allan C. Forbes 21 How to Install a Set in Your Automobile, Part I— An Auto Antenna, by H. J. Marx.. 23 Old Stand-by Short Wave Regenerative Hook-up, Part I— Layout of Parts and Panel, by Major R. C. Schoonha ven 25 Selective Split Variometer Circuit, Cuts Out Interference and Gets Long Distance 27 R.D.-122, a Variation of the Ultra Audion 28 Construction of a One Tube Reflex Receiver, Clear Tone Produced with Great Volume ........ 29 Questions and Answers 3D Directory of Radiophone Broadcasting Stations, Part II 31 Radio Illustrated, a page of pictures j ........ ] Looking Ahead Installing a Radio Set in a Ford Car will be the second article by H. J. Marx on Auto-Radio installations. This series will take up installation of various sets in as many different types of cars. French Short Wave Transmission and Reception, on waves less than two meters long, is one of the features of the next issue. This article was written by Rene Mesny, of the Department of Marine of the French government, well known tor his work in Radiophony on extremely short wave lengths. A Traveler's Portable Receiving Set— Next week Edward Thomas Jones will tell about his new set using three dry cell tubes and especially designed for the travelling man. Super-Heterodyne Assembly and Base Layout— Allan C. Forbes will devote the third part of his interesting series to more information on the construction of the super-heterodyne, a wonderful set. Technical Term, and What They Mean is the ninth part of the instructive and descriptive article by Paul E. Edelman, who will tell just what the technical words really stand for. Getting the Most Out of Your Neutrodyne, is the final article on the neutrodyne rece.yer by Peter J. M. Clute. He has many pointers of value to be tak. next issue. ;en up Newsstands Don't Always Have One Left WHEN YOU WANT Radio Digest YOU WANT IT! BE SURE OF YOUR WEEKLY COPY BY SUBSCRIBING NOW SEND IN THE BLANK TODAY Publisher Radio Digest, 510 N. Dearborn St, Chicags. Illmais. Please And encl.sed check M. 0. for Flvs Otilars Nam* .. Address •«lHTnitj o . City. One reason the McMillan Arctic Expedition uses Trimm Headsets is that when a man's life may be at stake, he wants equipment best beyond question. No receiving set is better than the reproducing instrument which finally gives the music and voice to your ears. Why not get all that your receiving set is capable of giving? Use Trimm Head Sets and Loud Speakers and enjoy to the utmost the wonders of Radio. Headsets Loud Talkers Phonograph Attachments TRIMM Radio Mfg. Co., Dept. 58 24 So. CLINTON ST. CHICAGO llllllinilllllHIIIlllllliiiiiiiiiiiiiiiiiiiiiiin sJ