"The Age of Progress, the telephone."—E. Benjamin Andrews 1895

Age of Progress

"The Age of Progress, the telephone."—E. Benjamin Andrews 1895

Edison's first Articulating Telephone.

Articulating Telephone

Edison's first Articulating Telephone.

Man speaking into telephone.

Bell telephone

Man speaking into telephone.

(1847-1942) Inventor of the telephone

Alexander Graham Bell

(1847-1942) Inventor of the telephone

Scientist, inventor, and founder of Bell Canada.

Alexander Graham Bell

Scientist, inventor, and founder of Bell Canada.

Boy with telephone.

Boy

Boy with telephone.

Edison's Carbon Telephone. He tried using carbon with the purpose of reducing the delicacy of the instrument.

Carbon Telephone

Edison's Carbon Telephone. He tried using carbon with the purpose of reducing the delicacy of the instrument.

An interior view of the chemical telephone.

Chemical Telephone

An interior view of the chemical telephone.

An illustration of the rotary dial on phones. Each hole corresponds to the number shown. To dial the number, the person will insert the finger into the phone and turn the dial until the finger hits the metal stop.

Telephone Rotary Dial

An illustration of the rotary dial on phones. Each hole corresponds to the number shown. To dial the…

An illustration of communication between a diver and the surface. Q, Battery with switch and bell in case; and R, Attendant's receiver and transmitter.

Diver's Communication

An illustration of communication between a diver and the surface. Q, Battery with switch and bell in…

(1847-1931) Famous American inventor.

Thomas Alva Edison

(1847-1931) Famous American inventor.

Girl with telephone.

Girl

Girl with telephone.

The Bell receiver reproduces sounds made on the other end of the circuit, from a transmitter of some kind, used in telephone correspondance. -Atkinson 1903

Bell Receiver

The Bell receiver reproduces sounds made on the other end of the circuit, from a transmitter of some…

"Instead of the telephone receivers normally used in telegraphs, substitute with galvanoscopes. When 1 is pressed, the needles at G and G' will be turned in one direction; when 2 is depressed, teh needles will be turned in the other direction." -Avery 1895

Telegraph Using Galvanoscopes

"Instead of the telephone receivers normally used in telegraphs, substitute with galvanoscopes. When…

"A simple telegraph consisting of two telephone receivers, two batteries, and two keys." -Avery 1895

Simple Telegraph

"A simple telegraph consisting of two telephone receivers, two batteries, and two keys." -Avery 1895

Telegraphy is the long distance transmission of written messages without physical transport of letters. A telegraph is a device for transmitting and receiving messages over long distances.

The Inner Workings of Telegraphy

Telegraphy is the long distance transmission of written messages without physical transport of letters.…

Two men using a telephone.

Telephone

Two men using a telephone.

An early form of the telephone.

Telephone

An early form of the telephone.

An instrument for reproducing sound at a distance by the transmission of impulses through the agency of electricity over a conducting wire or cord.

Telephone

An instrument for reproducing sound at a distance by the transmission of impulses through the agency…

A typical phone call, traditionally, is placed by picking the phone handset up off the base and holding the handset so that the hearing end is next to the user's ear and the speaking end is within range of the mouth. The caller would then rotary dial or press buttons for the phone numbers needed to complete the call.

Placing a Phone Call

A typical phone call, traditionally, is placed by picking the phone handset up off the base and holding…

Edison invented and developed the carbon microphone used in all telephones along with the Bell receiver until the 1980s. After protracted patent litigation, in 1892 a federal court ruled that Edison and not Emile Berliner—was the inventor of the carbon microphone. The carbon microphone was also used in radio broadcasting and public address work through the 1920s.

Telephone Transmitter Carbon Microphone

Edison invented and developed the carbon microphone used in all telephones along with the Bell receiver…

Credit for the invention of the electric telephone is frequently disputed, and new controversies over the issue have arisen from time-to-time. As with other great inventions such as radio, television, light bulb, and computer, there were several inventors who did pioneering experimental work on voice transmission over a wire and improved on each other's ideas.

Telephone Transmitting Device

Credit for the invention of the electric telephone is frequently disputed, and new controversies over…

This sign indicates that a telephone is located nearby.

Telephone, Black and White

This sign indicates that a telephone is located nearby.

This sign indicates that a telephone is located nearby.

Telephone, Color

This sign indicates that a telephone is located nearby.

An instrument that converts voice and other sound signals into a form that can be transmitted to remote locations and that receives and reconverts waves into sound signals.

Early Model Telephone

An instrument that converts voice and other sound signals into a form that can be transmitted to remote…

An instrument that converts voice and other sound signals into a form that can be transmitted to remote locations and that receives and reconverts waves into sound signals.

Early Use Telephone

An instrument that converts voice and other sound signals into a form that can be transmitted to remote…

This telephone uses magnets that converts sound into electrical signals to be transmitted over distances and then converts the signals back.

First uses of the Telephone

This telephone uses magnets that converts sound into electrical signals to be transmitted over distances…

This sign indicates that a telephone is located nearby.

Telephone, Outline

This sign indicates that a telephone is located nearby.

This sign indicates that a telephone is located nearby.

Telephone, Silhouette

This sign indicates that a telephone is located nearby.

This telephone wall mount bracket allows you to mount the main unit to a vertical surface. This device includes a covered cable tray for organized cable management.

Mounting for Telephonic Device

This telephone wall mount bracket allows you to mount the main unit to a vertical surface. This device…

"The transmitter is a microphone adapted for the transmission of telephone messages and, in general practice, is so used, better results being thus secured than is possible when the transmitter and receiver are identical. In the Blake transmitter, a diagram is supported back of a mouthpiece, as in the Bell telephone."

Blake transmitter

"The transmitter is a microphone adapted for the transmission of telephone messages and, in general…

The Blake transmitter is used in taking voice and transferring it into an electrical signal that can be reproduced by a receiver. Used in telephone systems.

Blake Transmitter

The Blake transmitter is used in taking voice and transferring it into an electrical signal that can…