Communication Devices

Communication Devices

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Clipart images of several types of communication devices, including telephones, telegraphs, and phonographs. Communication devices can be classified as any machine or tool to communicate from one person to another.

Telegraph
A man operating an electro-magnetic telegraph. ...

Telegraph
An instrument to send messages by means of electricity, either at short or long distances. An instrument of this kind is frequently called the electric telegraph....

Telegraph Instrument
"The first telegraphic instrument, as exhibited in 1837 by Morse."—E. Benjamin Andrews 1895...

Telegraph Key
Telegraph key invented by Samuel Morse with improvements by Alfred Vail....

Telegraph Receiver
The receiver of the telegraph....

Telegraph sounder
"The sounder is a telegraphic receiver consisting of an electromagnet, and a pivoted armature that plays up and down between its stops as the circuit is alternately made and broken. the message is 're...

Telegraph transmitter
"A transmitter or key is a current interrupter manipulated by the operator. It consists essentially of a metal layer, L, pivoted at aa, and conneted to the line by the screw at m which is insultated f...

Telegraph Transmitter
The transmitter of the telegraph....

Telegraph, Disc
A telegraph in which the letters of the alphabet or figures are placed on a circular plate in such a manner that they can be brought to succession to an opening, or indicated in sucession in some othe...

Telegraph, galvanoscopes
"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 nee...

Telegraph, one way
"A long ribbon of white paper is attached on a spool, and connected to a receiver that is wired to a switch. When the switch is closed, a signal is sent to the receiver, and it marks either a dot or d...

Telegraph, register, Morse
"The Morse register is represented [here]. The armature, A , is supported at the end of a lever, and over the cores of the magnet bobbins, M. A spring, S, lifts the armature when the cores are demagne...

Telegraph, relay
"With a long main-line and many instruments in circuit, the resistance may be so great as to render the main-battery current so feeble that it cannot operate the sounder with sufficient energy to rend...

Telegraph, simple
"The electric telegraph in its simplest form, consists of an electric circuit connecting he points between which telegraphic intercourse is established, a battery at each point, connected wih this cir...

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

Telegraph, sounder
"A variation of the telegraph sounder that uses a pool of mercury to close the circuit to produce the sound when a click is received." -Avery 1895...

Telegraph, system
"A complete telegraph system, displaying batteries, keys, receivers, relays and local batteries on both ends." -Avery 1895...

Telegraph, with neutral relay
"...two stations...each being furnished with a neutral relay, connected as [shown] and also each with a sounder and key, at each of which an operator is seated..." -Atkinson 1903...

Telephone
Two men using a telephone....

Telephone
Alexander Graham Bell's original model of the telephone reciever and transmitter. ...

Telephone
An early form of the telephone....

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 Receiver
The receiver of Bell's telephone....

Telephone Transmitter
The transmitter of Bell's telephone....

Telephone, Chemical
An illustration of one of the early telephones, known as a chemical telephone. Some used a liquid transmitter, some had a metal diaphragm that induced current in an electromagnet wound around a perma...

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Clipart ETC is a part of the Educational Technology Clearinghouse and is funded by various grants. Produced by the Florida Center for Instructional Technology, College of Education, University of South Florida. Email the project manager.

	Telegraph A man operating an electro-magnetic telegraph. ...
	Telegraph An instrument to send messages by means of electricity, either at short or long distances. An instrument of this kind is frequently called the electric telegraph....
	Telegraph Instrument "The first telegraphic instrument, as exhibited in 1837 by Morse."—E. Benjamin Andrews 1895...
	Telegraph Key Telegraph key invented by Samuel Morse with improvements by Alfred Vail....
	Telegraph Receiver The receiver of the telegraph....
	Telegraph sounder "The sounder is a telegraphic receiver consisting of an electromagnet, and a pivoted armature that plays up and down between its stops as the circuit is alternately made and broken. the message is 're...
	Telegraph transmitter "A transmitter or key is a current interrupter manipulated by the operator. It consists essentially of a metal layer, L, pivoted at aa, and conneted to the line by the screw at m which is insultated f...
	Telegraph Transmitter The transmitter of the telegraph....
	Telegraph, Disc A telegraph in which the letters of the alphabet or figures are placed on a circular plate in such a manner that they can be brought to succession to an opening, or indicated in sucession in some othe...
	Telegraph, galvanoscopes "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 nee...
	Telegraph, one way "A long ribbon of white paper is attached on a spool, and connected to a receiver that is wired to a switch. When the switch is closed, a signal is sent to the receiver, and it marks either a dot or d...
	Telegraph, register, Morse "The Morse register is represented [here]. The armature, A , is supported at the end of a lever, and over the cores of the magnet bobbins, M. A spring, S, lifts the armature when the cores are demagne...
	Telegraph, relay "With a long main-line and many instruments in circuit, the resistance may be so great as to render the main-battery current so feeble that it cannot operate the sounder with sufficient energy to rend...
	Telegraph, simple "The electric telegraph in its simplest form, consists of an electric circuit connecting he points between which telegraphic intercourse is established, a battery at each point, connected wih this cir...
	Telegraph, simple "A simple telegraph consisting of two telephone receivers, two batteries, and two keys." -Avery 1895...
	Telegraph, sounder "A variation of the telegraph sounder that uses a pool of mercury to close the circuit to produce the sound when a click is received." -Avery 1895...
	Telegraph, system "A complete telegraph system, displaying batteries, keys, receivers, relays and local batteries on both ends." -Avery 1895...
	Telegraph, with neutral relay "...two stations...each being furnished with a neutral relay, connected as [shown] and also each with a sounder and key, at each of which an operator is seated..." -Atkinson 1903...
	Telephone Two men using a telephone....
	Telephone Alexander Graham Bell's original model of the telephone reciever and transmitter. ...
	Telephone An early form of the telephone....
	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 Receiver The receiver of Bell's telephone....
	Telephone Transmitter The transmitter of Bell's telephone....
	Telephone, Chemical An illustration of one of the early telephones, known as a chemical telephone. Some used a liquid transmitter, some had a metal diaphragm that induced current in an electromagnet wound around a perma...