Finally, I can realize my dream of making a floor out of radio tubes!

RADIO TUBE OF METAL CAN BE WALKED ON

Proof against the roughest handling, an indestructible type of radio tube developed in England is so sturdy that it may even be stepped on without damage, as shown above. A metal bulb replaces the customary one of glass, maintaining the vacuum and also serving as the anode; glass is used in the tube only to insulate the bulb horn the metal base, The tube is encircled by a metal cylinder for electrical shielding. It is designed for use anywhere but should prove especially valuable in portable sets or others frequently moved.

Mirror Delivers Sales Talk To All Who Pause Before It

THE universal appeal of the mirror has long been recognized by advertising men as an effective medium for attracting attention to their message but it was left to an enterprising inventor to perfect the talking mirror. With his device the mirror delivers a sales talk the moment someone pauses before it.
The talking mirror is intended for installation in department stores, but it can be used outside with equal effectiveness. An electric relay system swings into operation the moment anyone interrupts an electric eye to scan himself in the innocent appearing mirror. The relay starts an automatic phonograph and amplifier and a brief sales talk is delivered.

Speaker Built in Extra Auto Wheel

RADIO loud speakers are found in all sorts of strange places, but who would ever think of looking in the hub of a spare tire. It has remained for an advertising man to think up a place like that. Installed in the hub, as shown in the accompanying photo, the speaker is used chiefly to broadcast outdoor advertising, and is not detected, thanks to its neat appearance and unique location. The reproducer of the speaker is operated from the radio set and microphone in the car.

The decorative hub cap acts as the grill for the front of the speaker.

Machine Tears Apart And Rebuilds Speech
A MACHINE that tears speech to pieces and remakes it in new patterns has been developed. Use of these machines for sending and receiving telephone messages would make wire-tapping impossible, unless the wiretapper had a machine with which to listen. Anyone listening with an ordinary receiver to a call made through the machine would hear only unintelligible sounds. Other possible uses for the machine are the making of voices for animated cartoons and in improving newsreel vocal accompaniment where excitement might make parts difficult to understand.

Pennies For Wings

The voice of a friend. Reassuring words from father, mother, son or daughter. A hurried call for aid in the night. You cannot set a price on
such things as these.

Yet this is true — telephone service is cheap in this country. No other people get so much service, and such good and courteous service, at such low cost.

BELL TELEPHONE SYSTEM

New Automatic Device Answers Phone, Records Message

PAUL H. ROWE, a Los Angeles sound engineer, has perfected a nearly human robot that answers his telephone perfectly when he is out.

The ringing of the telephone bell starts this ingenious machine operating, and whatever the caller says is received by a microphone and recorded. When Rowe returns, he is able to listen to whatever messages have come in.

WEAVING THE WORLD OF SPEECH

Daily, as upon a magic loom, the world is bound together by telephone. There, in a tapestry of words, is woven the story of many lives and the pattern of countless activities.

In and out of the switchboard move the cords that intertwine the voices of communities and continents. Swiftly, skilfully, the operator picks up the thread of speech and guides it across the miles. Constantly at her finger-tips are your contacts with people near and far.

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Using offshore systems to subvert a communication network to deliver ads for gambling, controlled substances and quack cures. Sure sounds like spam to me.

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OUTLAWS MAY USE SUPER-STATIONS at Sea

Broadcasting stations without a country seek new ways to flood the United States with radio advertising barred by federal commission. Two hundred outlaws face war by the government.

by MURPHY McHENRY

RADIO circles on the Pacific Coast were turned topsy turvy not long ago by the; continued presence of a radio pirate ship which had taken unto itself a very popular spot on the dial and started broadcasting without regard for the land stations with which it interfered.

The primary purpose of the unlicensed broadcast station was to advertise the gambling, liquor, and other dubious pleasure activities of the ship upon which it was built—all these activities beyond the 12-mile limit, of course. Thousands responded to the advertising and the owners waxed rich. They found other sundry rackets, such as a fortune telling program, which brought in additional money and finally assumed such an extensive program that one Los Angeles station was threatened with; a complete loss of audience and business because the ship’s radio signal was the more powerful of the two.

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Uses Record in Rehearsing Part

PAUL MUNI, movie star, learns just how his voice will sound in “talkies” while he is memorizing his lines.

He reads his lines into a dictaphone and then plays the record over and over, hearing his own voice and thus correcting errors that creep into his speech.

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Vest-Pocket Telephones

A telephone that can be carried about and used anywhere without connecting wires is a possibility in the near future. Research on the project has been carried on for several years by the Southern California Telephone Company and, according to latest reports, is now nearing practical application.

COMPLETE RADIO SET PUT IN HEADPHONES

Inventive ingenuity has succeeded recently in building a complete radio set into a pair of headphones. No batteries’ are required, since the set uses a crystal detector, which is adjusted by manipulating a small knob on one of the receivers, as shown above. To tune in any station, the user has merely to turn a larger knob at the back of the same receiver, operating a diminutive tuning condenser. The set will operate successfully wherever the cords of the set may be plugged into a convenient aerial and necessary ground connections are possible.

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Wire Thrower Lays Army Telephone Line

LAYING a mile of telephone wire in two minutes is a simple three-man job with the Army’s new wire-throwing device. This 600-pound machine, usually mounted on a 21/2-ton truck, literally squirts wire along a roadside at the rate of 30 to 35 miles per hour. By adjusting the angle of a special ejector, the line can be thrown as high as 40 feet in the air in order to clear obstacles.

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