Television Will Carry the Mails (Mar, 1935)

Television Will Carry the Mails


A twinkling beam of light records a picture thousands of miles away. It is facsimile transmission- an interesting feature of this authoritative article on the future developments of radio and television.

IN HIS struggle for new information, man has been reaching farther and farther into mysteries beyond his accustomed sphere; farther with the runner through the forest . . . farther with camel caravans across trackless plains . . . farther with ships into uncharted oceans . . . seeking speed, and relishing the advantages of new contacts. From the start, mankind has struggled for better communication.

Mobile Broadcasting Booth (Aug, 1951)

This is a pretty cool looking vehicle.

Mobile Broadcasting Booth
Radio reporters and commentators view news events at firsthand from the weatherproof press box built on a truck chassis for the Columbia Broadcasting System. As many as four commentators can broadcast simultaneously from the observation platform at the rear of the truck. The Plexiglas windows provide full vision on three sides. A plastic bubble atop the truck gives full forward vision. The truck has a high-frequency transmitter powered by its own generator. It has a range of 35 miles from the home station and can tie into telephone cables for longer transmission.

Giant Radio Has 37 Tubes (Apr, 1934)

Giant Radio Has 37 Tubes
EQUIPPED with 37 tubes and six speakers, the largest of which is 18 inches in diameter, one of the largest radio sets in the world has been produced by a Cincinnati, Ohio, radio manufacturer. The set is nearly five feet high and weighs 475 pounds.
The huge radio has a tremendous volume range with a maximum output of 75 watts, yet it can be tuned down to normal living room volume without distortion of tone quality. Four chassis are required to mount the working elements.
The set is capable of reproducing from 20 to 20,000 cycles of audio frequency, although the normal human ear is incapable of hearing above 16,000. The dial of the receiver is 12 inches in diameter.

Hotel Guests DIAL for Radio Programs (Aug, 1935)

This is pretty sweet.

Hotel Guests DIAL for Radio Programs
HOMESICK foreign guests at New York City’s Waldorf-Astoria hotel can now listen to radio programs from their own country, or perhaps even from their home town. At their service is the greatest all-wave radio receiver in the world—a set which can bring to each of the 2,200 suites of rooms programs from any one of the powerful broadcasting stations in the world. These programs are oftentimes heard with the same volume and clarity as are local stations.

Some rooms have a unique dialing system, which permits guests to select any station they desire from a printed daily list of world-wide broadcasts, or even hear their favorite phonograph records. In other rooms there are controls on the modernistic loudspeaker, which give to guests a choice of six broadcasts. Amplifiers build up the strength of weak signals more than a hundred billion times.

Radio Listens In On Phone Calls (Jul, 1936)

Radio Listens In On Phone Calls
AN ELECTRICAL eavesdropper, the invention of a Washington, D. C, man, Samuel S. Hixon, permits the listening in on phone conversations without connecting to the line. The device, operating on the radio principle, is capable of picking up conversation from phone wires within a radius of twenty-five feet without tapping lines.

Kansas Girl Genius Operates Television-Radio Station (Jun, 1936)

Yeah, well, she’s pretty smart, for a girl.

Kansas Girl Genius Operates Television-Radio Station
CONQUERING fields in which very few men have ventured eighteen-year-old Eleanor Thomas of Kansas City, Mo., is assistant engineer of Television station W9XBY. Finding the life on a college campus too prosaic Miss Thomas, a mathematical genius for a girl, decided to leave and enter an engineering school.

Throughout the course the young woman excelled in her studies and upon her graduation she was appointed to the position she now holds. She is the youngest member of her sex ever to pass the difficult examinations for a first class operator’s license from the Federal Communications Commission.


“Joe took father’s shoe bench out. She was waiting at my lawn.”

If you were passing through the Bell Telephone Laboratories today you might hear an electrical mouth speaking this odd talk, or whistling a series of musical notes, to a telephone transmitter.

This mouth can be made to repeat these sounds without variation. Every new telephone transmitter is tested by this mouth before it receives a laboratory or manufacturing O.K. for your use.

This is only one of the many tests to which telephone equipment is subjected in the Bell Telephone Laboratories. And there is a reason for the selection of those particular words.

It happens that the sentence, “Joe took father’s shoe bench out,” and its more lyrical companion, “She was waiting at my lawn,” contain all the fundamental sounds of the English language that contribute to the intensity of sound in speech.

Busily at work in the interest of every one who uses the telephone is one of the largest research laboratories in the world. The outstanding development of the telephone in this country is proof of the value of this research. In times like these, the work of the Bell Telephone Laboratories becomes increasingly important.

The Bell System is doing its part in the country’s program of National Defense



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Tiny Mike (Apr, 1952)

Wow, that thing is TINY! And the antenna is only 4 feet!

Tiny Mike shown below is being used in movie sequences where microphones are difficult to conceal. Jan Sterling illustrates how easy it is to hide this small battery case and four-foot antenna under her clothing.

Original Tape Recorder (Jun, 1936)

This is one of the earliest I’ve seen that uses magnetic tape and not wire.

Sound Recording Machine Perfected
OUT of the laboratories of a German firm comes the Magnetophon, a novel instrument for recording sound on narrow strips of film which can be preserved indefinitely. The bands resemble strips of talkie film. The Magnetophon records speeches and conversations, however fast, without difficulty. It uses the simple magnet-sound process. The recording bands are inexpensive.