Dictaphone® the sound you can see (Oct, 1961)

Dictaphone® the sound you can see

The “sound you can see” means savings you can see! If you let a Dictaphone Time-Master dictating machine take dictation for your secretary, you save money.

In terms of dollars and cents, this advanced method will record your messages far more economically and conveniently. And it will free your secretary for a multitude of other duties.

Phil Cook Mikes His Whole Show at Once (Dec, 1930)

You can hear Phil Cook being interviewed in this 29 December 1940 episode of Behind The Mike.


Phil Cook Mikes His Whole Show at Once

Versatile Radio Actor Changes Voice and Expression at Will.


WITH nothing to help him but a microphone, his voice, and his imagination, Phil Cook, popular radio entertainer, projected fifteen different characters, each a distinct personality, in a six-minute skit during a recent special radio broadcast program over a large network.

This performance, hailed as a feat unequaled in radio history, was the culminating exhibition of a new technique developed by Cook for the one-man shows he puts on the air.

Street Alarm Box Calls Either Police Or Firemen (Feb, 1938)

Street Alarm Box Calls Either Police Or Firemen

AN EMERGENCY alarm system L developed by Berkley E. Cover, of Chicago, Ill., enables a call to be made for policemen or firemen, according to the emergency, from the same signal box. The sender of the alarm can talk into a microphone at the street signal box or, if too excited to talk, can send the alarm by turning dials marked “Fire” and “Police.”



To triple the voice-carrying capacity of coaxial cable, Bell Laboratories engineers had to create new amplifying tubes with the grid placed only two-thirds of a hairs breadth from the cathode. Furthermore, the grid wires had to be held rigidly in position; one-quarter of a hairs shifting would cut amplification in half.

Housewife Builds FM Stereo (Jun, 1967)

Housewife Builds FM Stereo

Busy mother of two builds her first electronic kit


SOMEBODY SAID, “ANYONE CAN BUILD A kit nowadays.” I don’t even remember who said it. I had stopped by the neighborhood firehouse to check a monitor, and one of the firemen had built a shortwave receiver in his spare time. He thought it was pretty great; but one of the others figured it was no big deal, and said so.

Bombshell Mikes Make Permanent Record of Conference (Aug, 1932)

Bombshell Mikes Make Permanent Record of Conference

WITH the aid of a new electrical system making use of a battery of bomb-shaped microphones and a switch board, the recording of minute but important details of lengthy conferences is now simplified to a considerable extent. In addition, greater accuracy in the transcription is obtainable.

Radio’s Warning Lights (Nov, 1931)

Radio’s Warning Lights

RADIO masts, towering hundreds of feet into the air, present dangers to the aviator like the unseen “snags” of the Mississippi to the steamboats of old days. However, with powerful illumination of the kind shown here, they become beacons to guide tlie pilot who is familiar with their positions.

The type of light shown here, with its six radiating neon tubes, is especially visible from above. Such lamps have recently been installed on the masts of the new transmitter of station KDKA, at Saxonburgh, Pennsylvania, near Pittsburgh.

Broadcasting from a Submarine (Mar, 1931)

Broadcasting from a Submarine

By William J. Harris

Millions of radio listeners recently experienced for the first time in history the vicarious thrill of diving in a submarine and cruising along the ocean floor when announcers, stationed before a mike placed aboard the Submarine 0-8, gave a word picture of the boat’s maneuvers. This amazing feat was made possible by use of short wave radio, which also provides a means for transmitting from airplanes, autos and trains.

Radio’s Second Childhood (Jan, 1954)

Radio’s Second Childhood

Although nobody wants to return to the horse-and-carriage days, radio’s very first baby, the crystal set, is making a comeback.

By Henry M. Lewis, Jr.

UNLESS you’re an avid collector of antiques—a forgivable exception—you’d probably never think of entertaining your guests with that squeaky old Gramophone that’s gathering dust in the attic.

Telephones on wheels (Jun, 1960)

Telephones on wheels

The mobile telephone center above has been put into service in Chicago. It is designed to assist reporters and officials at special events. The 32-foot bus carries 15 phones—two of them on the outside. It is also provided with 10 mobile radiotelephone channels, several hand-carried radio transmitters, and a powerful public-address system.