Radio Digest (Apr 1925-Jan 1926)

RADIO DIGES T— Illustrated June 6. 1925 PLAN USE OF RADIO PLOTTING COUNTRY AIRPLANES TO COOPERATE IN GIGANTIC TASK Entire Project Will Take From Ten to Twenty Years — Estimated Cost $50,000,000 WASHINGTON". D. C. — Airplanes and Radio will cooperate in plotting a complete topographical survey of the United States, work on which has been intermittently going on for forty-five years. Army airplanes are to be utilized and the Radio will be extensively used for keeping in contact with these planes and receiving reports from them. This has come about as a result of the appropriation obtained at the last session of congress, and will cover annual stipends covering a period of twenty years, to complete the delayed work. Under present plans there will be from 800 to 900 men, about 275 of whom will be experienced engineers, working continually in the field during the summer of 1925. Next year funds sufficient to keep from 1,500 to 1,800 men busy during the spring, summer and fall are hoped for. Estimates put the cost of the entire work, which will continue for from ten to twenty years, at about $50,000,000. Herbert H. Hoover, secretary of commerce, is one of the advocates of the project. It will be in cooperation with his department that the planes will use Radio for innumerable purposes. There is an increasing need for more extensive and better maps for the use of air pilots. They must be guided by ground features, and flight maps must be prepared which will accurately locate such features. There is no such data for a large part of the country, and it can be obtained only by the completion of the topographical map. Publishes Radio Photo Book "WASHINGTON, D. C. — "Vision by Radio — Radio Photo" is the title of a book just published by C. Francis Jenkins, a local Radio inventor. The book takes up the work Mr Jenkins has done along the lines of sending photographs by Radio and discusses also similar work of others. AWAY UP WHERE ICEMEN STARVE The farthest north Radio station, which has Radiotelegraph equipment only, is this group of buildings at Greens Harbour,' Labrador. It is one of the stations with which the last MacMillan Polar expedition communicated, and will be in communication with the next MacMillan expedition which on June 17 will leave the United States. Foreign Notes Research work is now going forward in the Soviet laboratories at Nijni-Novgorod, where it is said extensive preparations are being made to develop high power Radio tubes of the 100-kilowatt water-cooled type. One lifeboat out of every ten carried on British steamers must be equipped with Radio sending apparatus. Radio has gripped the entire city population of Russia and is beginning to spread to the rural districts, according to reports from Moscow. To Sheffield belongs the distinction of having the first real Radio-equipped house in England. Every room is wired for Radio. The Radio policeman is on his rounds in Britain. When a person moves, he is tracked down for non-renewal of his license. Arrangement Complete to Mike British Turf Classic LONDON. — The broadcasting of the Derby, the blue ribbon of the English turf and one of the most famous races in the world, has been definitely approved by Sir William Mitchell-Thomson, postmaster-general. Arrangements have been made to lay a line along the track and to couple this up with an existing telephone circuit half a mile away. The actual microphone will be erected by the B. B. C. at the most suitable point to broadcast the shouts of the crowd, the thunder of the galloping horses, and the hundred and one other sounds of this race of races. CONTINUE SWIMMING INSTRUCTION AT WOR Frank E. Dalton's Lessons Via Ether Prove Popular NEWARK, N. J. — Frank E. Dalton's series of broadcast swimming instructions recently inaugurated by WOR are being continued as a regular Monday evening feature. The course by Mr. Dalton is most seasonable, and after his first few Radio lessons it is the consensus of opinion that he has the faculty of imparting instruction on a subject which might very readily be considered impractical by Radio. ' To create the atmosphere of the seashore while broadcasting, Mr. Dalton has ingenuously brought to the studio of WOR a "wave-making" machine, similar to those used on the stage in marine scenes. Scores of WOR listeners have written to the Dalton Swimming school to the effect that the swimming instructions have given them confidence in the water which will add materially to their enjoyment during the coming summer season. Motorcycle H ouse-to-H ouse Testers Awaken Sleepers JOHANNESBURG, South Africa. — Light sleepers who were awakened at 3 a. m. by a motorcycle carrying two men rushing madly past and returning again in a few moments, had their anxiety and curiosity relieved the next day when it was learned that the men were two Radio enthusiasts who were testing the relative reception, from Station KDKA, Pittsburgh, Pa., at their respective homes, which are some miles apart in different outlying residence districts. Station WEW Celebrates ST. LOUIS, Mo. — A special program was recently arranged at Station WEW, St. Louis university, to commemorate the fourth anniversary of Radio-telephonic installation. WEW is a pioneer broadcasting station in the United States and the oldest station in Missouri, having entered the field April 26, 1921. Because dust is composed partly of metal, the volume of sound in the receiver will be cut down if the inside of the set is permitted to become dirty. And Now— The Superspeaker Console In Performance, it's a Superspeaker — enough said. In Appearance, it's the finest piece of Radio cabinet work you have ever seen. Just what you'd expect from two years' experiment and development by an organization with a record of leadership in the field of loudspeakers. See it! Listen to it! Enjoy its ability to improve the appearance and performance of your set. Of finest American Walnut or the new Clairemount Mahogany — Top inlaid with Arlington Ivory — Leather composition grill, richly draped with silk — Volume controlled by ebony knob — SuperspeakerVernco Reproducing unit — Superspeaker-material concealed horn with full floating mounting. Overall size 10}4 x 17^4 inches, 10 inches high. Ask any Jewett dealer. Price $40.00; west of the Rockies, $42.50. The Jewett Superspeaker — All that the name implies. Recommended by experts everywhere. Price $30.00. The Jewett Superspeaker Console— A handsome cabinet with Superspeaker performance. Enough said. Price $40.00. West of the Rockies, $42.50. The Jewett Parkay Cabinet — With parquetry top. Puts the amateur on a par with the most exclusive cabinet worker. All sizes, prices to correspond. The Jewett Micro-Dial — Makes tuning 50 times as accurate. Fits any set. Needs only a screwdriver to install. Price $3.50. JEWETT RADIO & PHONOGRAPH COMPANY 5668 TELEGRAPH ROAD PONTIAC, MICHIGAN Factories: Allegan, Michigan— Detroit , Michigan— Pontiac Michigan Canadian Sales Offices: Walkervllle, Ontario Export Sales Offices 116 Broad St., New York City Jewett Quality Products The Jewett Vemco Unit — Makes a loud speaker out of your phonograph. The Reproducer used in the Superspeaker. Price $12.00. The Jewett Superspeaker Highboy Houses Radio set and allbatteries. Superspeaker built in. Takes Radio into the realm of fine furniture. Price $130.00.