Telegraph Receiver

a device designed to receive from a communications channel the signals transmitted by a telegraph transmitter and to print on a paper tape or roll of sheets the characters corresponding to the signals. The telegraph receiver is a fundamental component of modern start-stop printing telegraphs.

A receiver consists of a receiving electromagnet, a decoder, a printer, and several auxiliary mechanisms. When an incoming telegraph signal enters the receiver input, the armature of the electromagnet is moved into a specific position and, through a transfer mechanism, controls the operation of the decoder. The decoder determines the character corresponding to the received signal, and the printer prints the character.