HELMET RADIO
Here’s a receiver worn under the shield of a motorcycle policeman’s helmet. It was designed by Larry Smith, Atlantic City police technician.
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.
Using offshore systems to subvert a communication network to deliver ads for gambling, controlled substances and quack cures. Sure sounds like spam to me.
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.
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.
Radio Set Automatically Tunes in Station When Asked
A RADIO set, recently displayed in London, will tune in on any station it is asked to get.
A few seconds after merely telling the set the name of the station wanted, the program softly comes forth, without tuning noises. One of the wonders of modern radio, it will furnish one with television programs, for it is equipped with a television receiver, too.
If you build one of these, you too could be this cool.
Salt Water Powers Radio
Battery made of scrap metal and a pill vial runs for months!
By ROBERT E. KELLAND
THE salt-water cell powering this transistor radio has all the advantages of a dry cell, costs only pennies to make, and lasts for months. The complete radio receiver, with battery but less earphones, can be built for $3 or less.
As shown in the photos, the battery delivers about three-tenths of a volt. The radio consumes only 12 microamps while running, and in actual tests ran three days continuously without any detectable dip in volume.
I wonder which idea readers in 1924 thought was more plausible; mind reading automatons or cell phones. Whatever the answer, one thing is clear: we need to come up with some way to use the word “radioplasm”. Google only returns two hits on this word and one of them is in another language.
Reading Thoughts by Radio
Can thoughts be read by radio? “Madam Radora” seems to prove that they can. Madam is not a human being, but a life-size automaton shown at the Permanent Radio Fair in New York. Her “thoughts” and movements are controlled entirely by wireless; no wires of any kind are attached to the table whereon she rests, and a liberal reward is promised the person who can prove that this is not true.
The dog fired a revolver? That’s one dexterous dog!
Trick Dog Gets Orders by Radio
BY TEACHING a dog to do tricks under “radio control,” Constable Denholm, of the Sydney, Australia, police force, has fulfilled a two-year-old ambition. In a recent demonstration, he strapped a miniature shortwave radio receiving set on the back of Zoe, an Alsatian police dog, and retired to a shack fifty yards away. Then he spoke commands into the microphone of a portable transmitter. In response to her master’s voice as it came through the ether, Zoe climbed up and down ladders, turned a faucet on and off, took off her collar, and fired a revolver.
BUILD THIS Beer-Keg Radio FOR YOUR GAME ROOM
By ARTHUR C. MILLER
NOVEL as well as serviceable, the beer-keg radio described on these pages will make a useful addition to the furnishings in your game room. It can be used either as an end table or as a refreshment stand, and, since it is an entirely self-contained unit, operated by dry batteries, it can be carried onto a porch or even into the yard when warm summer days and evenings make this desirable. If you build this five-tube set carefully, it will give excellent reception from stations 1,000 miles or more away.
She shall have music wherever she goes!
Wherever you go with an RCA Victor Globe Trotter portable radio you’ll enjoy unusual richness and clarity of tone—volume enough for outdoor dancing—made possible through tiny tubes.
Miniature tubes save valuable space in small radios—space that can be used for larger and better loudspeakers and for longer lasting, radio-engineered RCA batteries.
Amos ‘n’ Andy Explained
By A. A. BRILL, M.D. As told to Michel Mok
DR. A. A. BRILL is known as the ablest man in his field in this country. He brought psychoanalysis to America and has written two widely read books on the subject. In this absorbing article, he brings all his vast knowledge and experience to bear in an effort to show you exactly why the Amos ‘n’ Andy craze is now sweeping the country. He goes to the very heart of the matter and makes clear the secret of their great popular appeal.
I DISCOVERED, not long ago, a new phenomenon in American life. Literally millions of persons of all ages and stations are listening daily to Amos ‘n’ Andy, the “comic strip of the air.” But they do more than that. They take an intense personal interest in the two characters, their ups and downs, their adventures. To thousands of men, women, and children Amos ‘n’ Andy are not fictitious figures. They are real, living human beings.
Back-Seat Dial For Auto Radio
Back-seat control of automobile radios is made possible by a new device that fits all standard receivers. A conventional dial is mounted in the upholstery beside the rear seat of a car, and tunes the radio by means of a flexible shaft. The unit does not interfere with the regular dashboard control, and the two dials are synchronized so they always show the same station reading when either is turned.
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