Oldest Radio Station Celebrates Its Sixteenth Anniversary
Only sixteen years ago the first regular entertainment program by wireless was broadcast. Program broadcasting originated with Station WWJ of the Detroit News in 1920, and at a sixteenth anniversary program in August one of the speakers was Dr. Lee De Forest, pioneer inventor of the industry, who talked over the original transmitting equipment he had devised.
Radio Bonnet is a new style in Germany for ladies who require entertainment while their permanents are getting permanent. It has a built-in speaker which may be tuned in by the wearer. The small switch the Fraulein holds does the trick.
Stereophonic Chair
Grandfather’s chair, “ears” and all, has been hauled down from the attic, dusted off, and given a new lease on life by Stereo Products Co., Severna Park, Md. By sticking loudspeakers into each of its side-”ears” and hooking them up to a stereo tape player, this company has come up with a new model of the old wing chair that provides an effect akin to listening with binaural earphones. Low volume assures semi-private listening.
If they have a battery that powers the radio for eight months why would the solar cells be necessary?
Sun-Powered Receiver
An experimental pocket-sized radio receiver, powered by energy from the sun, weighs only 10 ounces and will work more than eight months in total darkness without recharging. Developed by General Electric, the set uses a miniature storage battery, four transistors, and seven solar cells. During the day, light rays hit the solar cells which convert the sun’s energy to electrical current. This current powers the transistors and, at the same time, charges the storage battery which takes over at night. Artificial light, such as an ordinary 100-watt bulb, may be substituted for sunlight.
The Man Who Made Radio Talk
And Gave the Movies a Voice—The Dramatic Story of Lee De Forest, Inventor of the Audion Tube
By FRANK PARKER STOCKBRIDGE
THE story of Lee De Forest, and of his long and bitter court struggle for possession of the basic patents on the audion tube, runs parallel to the history of radio. Like most great inventors, he has been maligned, ridiculed, baffled—and all but beaten. Today he emerges victorious, vindicated in his. claim to be called the father of radio broadcasting. Here Mr. Stockbridge writes the drama of the timid, unsociable youth who set his face toward a goal and learned how to fight to win it. —The Editor.
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Music While Walking With Radio
A BERLIN engineer has invented a new radio hat set which may be worn without inconvenience to the wearer. With this set, shown at the right, one may listen to the Sunday sermon while motoring or playing golf, get the stock market returns at the ball game, or get the benefit of the daily dozen while on the way to work by merely tuning in.
Motorcycle Radio Transmitters Aid Police in War on Crime
DURING running gun battles with bandits, British motorcycle police can send radio calls for reserves through short wave transmitting sets.
The sending outfit is the latest police radio equipment for the quick suppression of crime. It is an addition to the usual receiving set tuned to the frequency of a central police transmitting station.
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Aiming Radio Signals at the Moon
RADIO signals from the moon can be heard, asserts Dr. A. Hoyt Taylor of the Naval Research Laboratory at Washington, D. C. The plan is to direct a short wave radio beam at the moon in such a manner that it will be reflected by the moon’s surface to produce an “echo” wave, audible through powerful receivers on earth some three seconds after the 500,000-mile trip through inter-stellar space.
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CAR RADIO VENTURE PROVES BIG SUCCESS
STARTING from scratch eighteen months ago, F. L. Schlink, of Portland, Oregon, has made a profit from the beginning by selling, installing, and servicing of car radios exclusively. At the present time, he is the only one so specializing in The Pacific Northwest.
Early in 1932, he rented a small garage for a service shop. It would accommodate only four cars. He had only one service man and did all the selling himself, helping with the service work in spare moments. Even now, while engaged in bigger deals and more of them, if there comes a momentary interim between telephone calls or demonstrations to customers, he is into a car in an instant with pliers or test set, helping the men. It is this drive within him for utilizing every spare moment which, I believe, is in no small measure accountable for his success.
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Is there any way this could possibly have worked? It seems like way too subtle a problem to solve just by matching certain frequencies. I’m sure you could program a computer to do a pretty good job of this now, but even that would have problems. And even if it worked, who’s to say a commercial can’t have music?
Device Shuts Off Radio Advertising; Tunes in Music
RADIO listeners who dislike advertising announcements and long speeches will welcome a new invention that automatically shuts off voice programs.
The device, known as the “radio advertising eliminator,” will operate the radio only when musical programs are coming over the air. Just as soon as any voice announcement is made from the station, the radio receiver is turned off and is not turned on again until the musical program resumes.
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BIGGEST RADIO SET HAS FORTY TUBES
What is believed to be the largest and most powerful radio receiving set ever assembled is the latest achievement of a well-known Chicago radio engineer. Designed for world-wide reception on all wave lengths, the mammoth receiver has a complicated circuit which employs forty tubes. Five separate loudspeakers, operating simultaneously, cover a wide sound-frequency range, and give exceptional tonal quality. The total weight of the receiver, shown below, is 620 pounds.
Kerosene Lamp Powers Radio
REMOTE areas of Siberia and China use thermoelectric generators like the one shown here to convert heat from a kerosene lamp into electricity for radios.
The 20-lb. device is being studied by scientists at the Martin Co., Baltimore, Md., where similar direct conversion principles have been applied to nuclear heat sources. They paid $56 for the Russian-built device.
A series of thermocouples is arranged around the upper portion of the lamp. As each set of elements is heated at one end by the lamp, a small amount of electricity flows through the pair. Metallic fins remove the excess heat.
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